{"id":9343,"date":"2026-05-25T13:18:08","date_gmt":"2026-05-25T11:18:08","guid":{"rendered":"https:\/\/www.dagartech.com\/en\/?p=9343"},"modified":"2026-06-02T13:38:26","modified_gmt":"2026-06-02T11:38:26","slug":"generator-set-emission-standards","status":"publish","type":"post","link":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/","title":{"rendered":"Emission standards: what you need to know before buying a generator set"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_68_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Index<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#1_History_of_generator_set_emission_standards_for_non-road_engines\" title=\"1. History of generator set emission standards for non-road engines\">1. History of generator set emission standards for non-road engines<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#11_From_Directive_9768EC_to_Regulation_20161628\" title=\"1.1 From Directive 97\/68\/EC to Regulation 2016\/1628\">1.1 From Directive 97\/68\/EC to Regulation 2016\/1628<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#12_Evolution_of_limits_from_Stage_I_to_Stage_V\" title=\"1.2 Evolution of limits: from Stage I to Stage V\">1.2 Evolution of limits: from Stage I to Stage V<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#2_Engine_categories_which_generator_set_emission_standard_applies_to_you\" title=\"2. Engine categories: which generator set emission standard applies to you?\">2. Engine categories: which generator set emission standard applies to you?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#21_NRE_category_mobile_generator_sets_0_%E2%80%93_560_kW\" title=\"2.1 NRE category: mobile generator sets (0 \u2013 560 kW)\">2.1 NRE category: mobile generator sets (0 \u2013 560 kW)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#22_NRG_category_fixed_generator_sets_%3E_560_kW\" title=\"2.2 NRG category: fixed generator sets (&gt; 560 kW)\">2.2 NRG category: fixed generator sets (&gt; 560 kW)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#3_Stage_V_generator_set_emission_standards_in_detail\" title=\"3. Stage V generator set emission standards in detail\">3. Stage V generator set emission standards in detail<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#31_Limits_for_the_NRE_category_mobile_sets_19_%E2%80%93_560_kW\" title=\"3.1 Limits for the NRE category (mobile sets, 19 \u2013 560 kW)\">3.1 Limits for the NRE category (mobile sets, 19 \u2013 560 kW)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#32_Typical_aftertreatment_system_in_a_Stage_V_engine\" title=\"3.2 Typical aftertreatment system in a Stage V engine\">3.2 Typical aftertreatment system in a Stage V engine<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#33_DPF_regeneration_a_critical_operational_parameter\" title=\"3.3 DPF regeneration: a critical operational parameter\">3.3 DPF regeneration: a critical operational parameter<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#4_Regulatory_obligations_at_purchase_and_commissioning\" title=\"4. Regulatory obligations at purchase and commissioning\">4. Regulatory obligations at purchase and commissioning<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#41_Type_approval_and_engine_marking\" title=\"4.1 Type approval and engine marking\">4.1 Type approval and engine marking<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#42_Declaration_of_conformity_and_mandatory_documentation\" title=\"4.2 Declaration of conformity and mandatory documentation\">4.2 Declaration of conformity and mandatory documentation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#43_Fuel_requirements_and_AdBlue_compatibility\" title=\"4.3 Fuel requirements and AdBlue compatibility\">4.3 Fuel requirements and AdBlue compatibility<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#5_Practical_implications_for_buyers_and_rental_companies\" title=\"5. Practical implications for buyers and rental companies\">5. Practical implications for buyers and rental companies<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#51_Impact_on_dimensioning\" title=\"5.1 Impact on dimensioning\">5.1 Impact on dimensioning<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#52_Impact_on_maintenance_costs\" title=\"5.2 Impact on maintenance costs\">5.2 Impact on maintenance costs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#53_Low-emission_zones_a_growing_constraint\" title=\"5.3 Low-emission zones: a growing constraint\">5.3 Low-emission zones: a growing constraint<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#6_Generator_set_emission_standards_and_alternative_fuels\" title=\"6. Generator set emission standards and alternative fuels\">6. Generator set emission standards and alternative fuels<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#61_HVO_and_Stage_V_the_optimal_combination_for_generator_set_emission_standards\" title=\"6.1 HVO and Stage V: the optimal combination for generator set emission standards\">6.1 HVO and Stage V: the optimal combination for generator set emission standards<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#62_FAME_biofuels_B7_B10_B30\" title=\"6.2 FAME biofuels (B7, B10, B30)\">6.2 FAME biofuels (B7, B10, B30)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#63_Outlook_Stage_VI_and_zero-emission_engines\" title=\"6.3 Outlook: Stage VI and zero-emission engines\">6.3 Outlook: Stage VI and zero-emission engines<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#7_How_to_read_and_interpret_an_engine_nameplate\" title=\"7. How to read and interpret an engine nameplate\">7. How to read and interpret an engine nameplate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#8_Dagartech_Rental_Plus_EU_Stage_V_range_regulatory_compliance_as_the_starting_point\" title=\"8. Dagartech Rental Plus EU Stage V range: regulatory compliance as the starting point\">8. Dagartech Rental Plus EU Stage V range: regulatory compliance as the starting point<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#Stage_V_type-approved_engines_in_the_range\" title=\"Stage V type-approved engines in the range\">Stage V type-approved engines in the range<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#A_design_built_to_minimise_Stage_V_operational_risks\" title=\"A design built to minimise Stage V operational risks\">A design built to minimise Stage V operational risks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#Need_guidance_on_generator_set_emission_standards\" title=\"Need guidance on generator set emission standards?\">Need guidance on generator set emission standards?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<p>Understanding <strong>generator set emission standards<\/strong> is now essential before any purchase decision. Today, buying a generator set is no longer simply a matter of choosing a power rating and a price. Since the European regulation on non-road mobile machinery emissions came into force, every purchase requires understanding a precise regulatory framework. This framework determines the legality of use, the onboard technologies, maintenance costs and compatibility with alternative fuels.<\/p>\n<p>The <strong>EU Stage V<\/strong> standard came into progressive effect from 1 January 2019. It represents the most significant regulatory shift in the sector for twenty years. In fact, it imposed drastic reductions in fine particle, nitrogen oxide and hydrocarbon emissions across all categories of non-road engines, including <strong><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/\">generator sets<\/a><\/strong>. Moreover, it made aftertreatment technologies mandatory \u2014 particulate filters and SCR systems \u2014 that were previously absent from most mobile machinery.<\/p>\n<p>Consequently, this article presents the regulatory framework applicable to generator sets. It covers the history of emission standards, the relevant engine categories, the Stage V numerical limits and the technologies it requires. It also addresses purchase and operational obligations, as well as the practical implications for buyers, rental companies and fleet managers.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"1_History_of_generator_set_emission_standards_for_non-road_engines\"><\/span><strong>1. History of generator set emission standards for non-road engines<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"11_From_Directive_9768EC_to_Regulation_20161628\"><\/span><strong>1.1 From Directive 97\/68\/EC to Regulation 2016\/1628<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In Europe, <strong>generator set emission standards<\/strong> for non-road mobile machinery (NRMM) engines originated with <strong>Directive 97\/68\/EC<\/strong>. This founding text established the first Stage I and Stage II thresholds for diesel engines between 18 and 560 kW. Subsequently, the legislature amended it five times between 2002 and 2012, progressively lowering the thresholds for Stages IIIA, IIIB and IV.<\/p>\n<p><a href=\"https:\/\/eur-lex.europa.eu\/eli\/reg\/2016\/1628\/oj\" target=\"_blank\" rel=\"noopener\"><strong>Regulation (EU) 2016\/1628<\/strong><\/a>, published on 14 September 2016, replaces Directive 97\/68\/EC with a single text. Unlike a directive, this regulation applies directly in all Member States without national transposition. It introduces <strong>Stage V<\/strong>, the most stringent level to date for <strong>generator set emission standards<\/strong>. Furthermore, it broadens the scope to new categories: spark-ignition engines, inland waterway vessels, locomotives and all-terrain vehicles.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"12_Evolution_of_limits_from_Stage_I_to_Stage_V\"><\/span><strong>1.2 Evolution of limits: from Stage I to Stage V<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To appreciate the scope of the changes, consider the evolution of emission thresholds between Stage I and Stage V:<\/p>\n<table width=\"567\">\n<thead>\n<tr>\n<td width=\"130\"><strong>Parameter<\/strong><\/td>\n<td width=\"110\"><strong>Stage I (1999)<\/strong><\/td>\n<td width=\"110\"><strong>Stage IIIB (2011)<\/strong><\/td>\n<td width=\"110\"><strong>Stage V (2019)<\/strong><\/td>\n<td width=\"107\"><strong>Total reduction<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>NOx (g\/kWh)<\/strong><\/td>\n<td>9.2<\/td>\n<td>3.4<\/td>\n<td>0.4<\/td>\n<td>\u221296%<\/td>\n<\/tr>\n<tr>\n<td><strong>PM (g\/kWh)<\/strong><\/td>\n<td>0.54<\/td>\n<td>0.025<\/td>\n<td>0.015<\/td>\n<td>\u221297%<\/td>\n<\/tr>\n<tr>\n<td><strong>HC (g\/kWh)<\/strong><\/td>\n<td>1.3<\/td>\n<td>0.19<\/td>\n<td>0.19<\/td>\n<td>\u221285%<\/td>\n<\/tr>\n<tr>\n<td><strong>CO (g\/kWh)<\/strong><\/td>\n<td>5.0<\/td>\n<td>3.5<\/td>\n<td>3.5<\/td>\n<td>\u221230%<\/td>\n<\/tr>\n<tr>\n<td><strong>PN (no.\/kWh)<\/strong><\/td>\n<td>Not limited<\/td>\n<td>Not limited<\/td>\n<td>1 \u00d7 10\u00b9\u00b2<\/td>\n<td>New<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Stage V introduces for the first time a <strong>particle number limit (PN)<\/strong>. This limit is set at 1 \u00d7 10\u00b9\u00b2 particles\/kWh for engines between 19 and 560 kW. In practice, it makes wall-flow diesel particulate filters (DPF) mandatory. As such, this is the principal technical innovation of Stage V over Stage IV.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"2_Engine_categories_which_generator_set_emission_standard_applies_to_you\"><\/span><strong>2. Engine categories: which generator set emission standard applies to you?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Regulation 2016\/1628 classifies non-road engines into several categories according to engine type, rated power and primary application. Two categories determine which <strong>generator set emission standards<\/strong> apply.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"21_NRE_category_mobile_generator_sets_0_%E2%80%93_560_kW\"><\/span><strong>2.1 NRE category: mobile generator sets (0 \u2013 560 kW)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The <strong>NRE<\/strong> (<em>Non-Road mobile machinery Engine<\/em>) category covers engines fitted in machinery designed to move or be moved. Concretely, it applies to <strong>mobile and semi-fixed generator sets<\/strong> with an engine power below 560 kW. This therefore includes the vast majority of rental sets, construction site units, event power supplies and standby applications.<\/p>\n<p>The NRE category is divided into seven power sub-categories, each with its own emission limits and application dates:<\/p>\n<table width=\"567\">\n<thead>\n<tr>\n<td width=\"189\"><strong>NRE sub-category<\/strong><\/td>\n<td width=\"189\"><strong>Engine power<\/strong><\/td>\n<td width=\"189\"><strong>Stage V application date<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NRE-v\/c-1<\/td>\n<td>&lt; 8 kW<\/td>\n<td>1 January 2019<\/td>\n<\/tr>\n<tr>\n<td>NRE-v\/c-2<\/td>\n<td>8 \u2013 19 kW<\/td>\n<td>1 January 2019<\/td>\n<\/tr>\n<tr>\n<td>NRE-v\/c-3<\/td>\n<td>19 \u2013 37 kW<\/td>\n<td>1 January 2019<\/td>\n<\/tr>\n<tr>\n<td>NRE-v\/c-4<\/td>\n<td>37 \u2013 56 kW<\/td>\n<td>1 January 2019<\/td>\n<\/tr>\n<tr>\n<td>NRE-v\/c-5<\/td>\n<td>56 \u2013 130 kW<\/td>\n<td>1 January 2020<\/td>\n<\/tr>\n<tr>\n<td>NRE-v\/c-6<\/td>\n<td>130 \u2013 560 kW<\/td>\n<td>1 January 2019<\/td>\n<\/tr>\n<tr>\n<td>NRE-v\/c-7<\/td>\n<td>&gt; 560 kW (NRE)<\/td>\n<td>1 January 2019<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>Important note:<\/strong> The suffix &#8220;v&#8221; denotes variable-speed engines and &#8220;c&#8221; constant-speed engines. Generator sets typically operate at constant speed (1,500 or 1,800 rpm depending on frequency), which places them in the NRE-c category.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"22_NRG_category_fixed_generator_sets_%3E_560_kW\"><\/span><strong>2.2 NRG category: fixed generator sets (&gt; 560 kW)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The <strong>NRG<\/strong> (<em>Non-Road Generator<\/em>) category applies to engines above 560 kW used <strong>exclusively in generator sets<\/strong>. NRG limits differ slightly from the NRE category at equivalent power ratings, and the applicable test cycles (NRSC and NRTC) are also adapted.<\/p>\n<p><strong>Fundamental regulatory distinction:<\/strong> Regulation 2016\/1628 excludes <strong>stationary machinery<\/strong> from its scope. In other words, a generator set permanently installed in a building&#8217;s plant room falls under other regulations, notably the Ecodesign Directive and local air quality legislation. In contrast, any rental or semi-mobile set is automatically subject to Stage V <strong>generator set emission standards<\/strong>. This distinction is therefore critical at the time of purchase.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Stage_V_generator_set_emission_standards_in_detail\"><\/span><strong>3. Stage V generator set emission standards in detail<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"31_Limits_for_the_NRE_category_mobile_sets_19_%E2%80%93_560_kW\"><\/span><strong>3.1 Limits for the NRE category (mobile sets, 19 \u2013 560 kW)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The following <strong>generator set emission standards<\/strong> thresholds apply to the vast majority of rental and construction site generator sets (NRE-v\/c-5 and NRE-v\/c-6 sub-categories, covering 56 to 560 kW):<\/p>\n<table width=\"567\">\n<thead>\n<tr>\n<td width=\"100\"><strong>Pollutant<\/strong><\/td>\n<td width=\"130\"><strong>Stage V limit<\/strong><\/td>\n<td width=\"100\"><strong>Unit<\/strong><\/td>\n<td width=\"237\"><strong>Technology typically required<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>CO<\/strong><\/td>\n<td>3.5<\/td>\n<td>g\/kWh<\/td>\n<td>Engine management<\/td>\n<\/tr>\n<tr>\n<td><strong>HC<\/strong><\/td>\n<td>0.19<\/td>\n<td>g\/kWh<\/td>\n<td>Diesel oxidation catalyst (DOC)<\/td>\n<\/tr>\n<tr>\n<td><strong>NOx<\/strong><\/td>\n<td>0.4<\/td>\n<td>g\/kWh<\/td>\n<td>SCR (selective catalytic reduction)<\/td>\n<\/tr>\n<tr>\n<td><strong>PM<\/strong><\/td>\n<td>0.015<\/td>\n<td>g\/kWh<\/td>\n<td>DPF (diesel particulate filter)<\/td>\n<\/tr>\n<tr>\n<td><strong>PN<\/strong><\/td>\n<td>1 \u00d7 10\u00b9\u00b2<\/td>\n<td>no.\/kWh<\/td>\n<td>Wall-flow DPF<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>The NOx limit of <strong>0.4 g\/kWh<\/strong> represents an 88% reduction compared to Stage IIIB. To meet this threshold, manufacturers systematically integrate an <strong>SCR<\/strong> (<em>Selective Catalytic Reduction<\/em>) system. This system uses <strong>AdBlue<\/strong> (32.5% urea solution) to convert NOx into harmless nitrogen (N\u2082) and water vapour.<\/p>\n<p>The PN limit of <strong>1 \u00d7 10\u00b9\u00b2 particles\/kWh<\/strong> is entirely new compared to previous standards. It requires the use of a <strong>wall-flow DPF<\/strong>, the only filter type capable of achieving the filtration levels required for ultrafine particles. Indeed, oxidation catalysts alone (DOC) are insufficient.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"32_Typical_aftertreatment_system_in_a_Stage_V_engine\"><\/span><strong>3.2 Typical aftertreatment system in a Stage V engine<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A mid-range Stage V generator set (56 \u2013 560 kW) typically incorporates the following aftertreatment chain:<\/p>\n<p><strong>DOC \u2192 DPF \u2192 SCR \u2192 ASC<\/strong><\/p>\n<ul>\n<li><strong>DOC<\/strong> (<em>Diesel Oxidation Catalyst<\/em>): oxidises residual CO and HC; produces NO\u2082 that facilitates passive DPF regeneration<\/li>\n<li><strong>DPF<\/strong> (<em>Diesel Particulate Filter<\/em>): captures fine (PM) and ultrafine (PN) particles; regenerates actively or passively depending on the load cycle<\/li>\n<li><strong>SCR<\/strong> (<em>Selective Catalytic Reduction<\/em>): reduces NOx via AdBlue injection; typical efficiency: 85\u201395%<\/li>\n<li><strong>ASC<\/strong> (<em>Ammonia Slip Catalyst<\/em>): neutralises residual ammonia leaving the SCR<\/li>\n<\/ul>\n<p><strong>Practical implication:<\/strong> The presence of SCR requires an <strong>AdBlue reserve<\/strong> on the set. Typical consumption is 3 to 5% of fuel volume. For example, a 200 kVA set consuming 40 L\/h uses approximately 1.2 to 2 L\/h of AdBlue. AdBlue supply logistics must therefore be planned from day one.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"33_DPF_regeneration_a_critical_operational_parameter\"><\/span><strong>3.3 DPF regeneration: a critical operational parameter<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The DPF progressively clogs with accumulated soot and must be regenerated regularly. There are two regeneration modes:<\/p>\n<p><strong>Passive regeneration:<\/strong> occurs naturally when exhaust gas temperatures are high enough (&gt; 250\u2013300\u00b0C), i.e. when the set operates at high load (&gt; 50\u201360% of rated power). This is the preferred mode in normal operation.<\/p>\n<p><strong>Active regeneration:<\/strong> the engine control unit triggers this electronically when the DPF loading level exceeds a critical threshold. It then injects fuel via post-injection to raise gas temperatures above 600\u00b0C and burn off accumulated soot. In return, this regeneration temporarily increases fuel consumption by 5 to 15%.<\/p>\n<p><strong>Risk at low load:<\/strong> A set running regularly below 30\u201340% of its rated power produces exhaust gases too cold for effective passive regeneration. This is a frequent situation in standby mode or on undersized sites. As a result, the DPF clogs more quickly. Active regenerations multiply accordingly. Eventually, complete blockage may require forced workshop regeneration. It is therefore essential to address this risk at the dimensioning stage.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"4_Regulatory_obligations_at_purchase_and_commissioning\"><\/span><strong>4. Regulatory obligations at purchase and commissioning<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"41_Type_approval_and_engine_marking\"><\/span><strong>4.1 Type approval and engine marking<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Every Stage V engine placed on the European market must hold an <strong>EU type-approval<\/strong>. A competent authority, designated by a Member State, issues this approval. It certifies that the engine meets the <strong>generator set emission standards<\/strong> of Regulation 2016\/1628, under the standardised NRSC and NRTC test cycles (ISO 8178).<\/p>\n<p>The engine must be marked with:<\/p>\n<ul>\n<li>The manufacturer&#8217;s name or trademark<\/li>\n<li>The engine designation and serial number<\/li>\n<li>The emission category and regulatory stage (<strong>Stage V<\/strong>)<\/li>\n<li>The year of manufacture<\/li>\n<li>The rated power in kW<\/li>\n<\/ul>\n<p>Upon receipt of a generator set, the buyer must therefore check the engine marking and the type-approval certificate first.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"42_Declaration_of_conformity_and_mandatory_documentation\"><\/span><strong>4.2 Declaration of conformity and mandatory documentation<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To demonstrate compliance with <strong>generator set emission standards<\/strong>, the manufacturer must provide:<\/p>\n<ul>\n<li>The <strong>declaration of conformity<\/strong> with Regulation 2016\/1628 (or Machinery Directive 2006\/42\/EC if applicable)<\/li>\n<li>The <strong>installation and maintenance manual<\/strong>, including specific requirements for the aftertreatment system (AdBlue, DPF regeneration, maintenance intervals)<\/li>\n<li>The <strong>DPF maintenance intervals<\/strong>: physical cleaning recommended every 2,000 to 5,000 hours depending on operating intensity and average load factor<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"43_Fuel_requirements_and_AdBlue_compatibility\"><\/span><strong>4.3 Fuel requirements and AdBlue compatibility<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Stage V engines run on <strong>ultra-low sulphur diesel EN 590<\/strong> (ULSD, &lt; 10 mg\/kg). The use of higher-sulphur fuels is strictly prohibited. Indeed, sulphur poisons SCR catalysts and damages DPFs.<\/p>\n<p><strong>AdBlue<\/strong> (32.5% aqueous urea solution) must comply with standard <strong>ISO 22241<\/strong>. Substandard AdBlue can damage the SCR catalyst and trigger power derate alerts (engine entering degraded mode).<\/p>\n<p><strong>HVO compatibility:<\/strong> Stage V engines approved by their manufacturer for <strong>HVO (EN 15940)<\/strong> run on HVO100 without any modification to the aftertreatment system. In addition, the ultra-low sulphur content of HVO (&lt; 5 mg\/kg) is marginally more favourable than diesel EN 590 for catalyst longevity.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"5_Practical_implications_for_buyers_and_rental_companies\"><\/span><strong>5. Practical implications for buyers and rental companies<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"51_Impact_on_dimensioning\"><\/span><strong>5.1 Impact on dimensioning<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The DPF regeneration requirement \u2014 a core feature of current <strong>generator set emission standards<\/strong> \u2014 has direct consequences on set sizing:<\/p>\n<ul>\n<li><strong>The 30% rule:<\/strong> manufacturers generally recommend not running a Stage V set below 30% of its rated power for extended periods. Below this threshold, passive DPF regeneration is no longer assured.<\/li>\n<li><strong>Oversizing is penalising:<\/strong> unlike pre-Stage V engines, an oversized Stage V set relative to the actual load carries an increased risk of DPF problems.<\/li>\n<li><strong>Multi-set sequencing:<\/strong> for variable-load sites, coupling several smaller sets (switching off units as required) is often preferable to a single large set running at low load.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"52_Impact_on_maintenance_costs\"><\/span><strong>5.2 Impact on maintenance costs<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Integrating a complete aftertreatment system increases maintenance costs compared to pre-Stage V engines:<\/p>\n<table width=\"567\">\n<thead>\n<tr>\n<td width=\"220\"><strong>Maintenance item<\/strong><\/td>\n<td width=\"170\"><strong>Typical frequency<\/strong><\/td>\n<td width=\"177\"><strong>Indicative cost<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Air filter replacement<\/td>\n<td>250\u2013500 h<\/td>\n<td>Low<\/td>\n<\/tr>\n<tr>\n<td>Oil and filter change<\/td>\n<td>250\u2013500 h<\/td>\n<td>Low<\/td>\n<\/tr>\n<tr>\n<td>DPF cleaning (thermal or pneumatic)<\/td>\n<td>2,000\u20135,000 h<\/td>\n<td>Medium (\u20ac200\u2013600)<\/td>\n<\/tr>\n<tr>\n<td>DPF replacement<\/td>\n<td>8,000\u201315,000 h<\/td>\n<td>High (\u20ac1,000\u20133,000)<\/td>\n<\/tr>\n<tr>\n<td>SCR catalyst replacement<\/td>\n<td>10,000\u201320,000 h<\/td>\n<td>High (\u20ac800\u20132,500)<\/td>\n<\/tr>\n<tr>\n<td>AdBlue (ongoing consumable)<\/td>\n<td>Continuous<\/td>\n<td>3\u20135% of fuel cost<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"53_Low-emission_zones_a_growing_constraint\"><\/span><strong>5.3 Low-emission zones: a growing constraint<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Several European countries are rolling out access restrictions to <strong>Low Emission Zones<\/strong> (LEZ) for construction machinery. Generator sets are generally not subject to the same rules as earthmoving equipment. However, certain municipal regulations and public procurement clauses now require Stage V <strong>generator set emission standards<\/strong> compliance for sets used on dense urban construction sites.<\/p>\n<p>In France, the <strong>Mobility Orientation Law (LOM)<\/strong> and municipal orders in major cities are tightening access progressively. German <em>Umweltzonen<\/em> apply the same logic. Spain&#8217;s ZBE zones are expanding rapidly. Clean Air Zones (CAZ) in the UK follow a similar trajectory.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"6_Generator_set_emission_standards_and_alternative_fuels\"><\/span><strong>6. Generator set emission standards and alternative fuels<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"61_HVO_and_Stage_V_the_optimal_combination_for_generator_set_emission_standards\"><\/span><strong>6.1 HVO and Stage V: the optimal combination for generator set emission standards<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Using <strong><a href=\"https:\/\/www.dagartech.com\/en\/hvo-vs-diesel-generator-set\/\">HVO (EN 15940)<\/a><\/strong> in a Stage V generator set delivers significant cumulative benefits:<\/p>\n<ul>\n<li>HVO reduces exhaust particulate emissions by 30 to 50%, mechanically reducing the DPF loading rate and extending regeneration intervals<\/li>\n<li>The near-absence of aromatics in HVO produces fewer soot precursors, resulting in a less stressed DPF and extended service life<\/li>\n<li>The reduction in unburnt HCs facilitates passive DPF regeneration at lower loads<\/li>\n<li>HVO contains no sulphur liable to poison SCR and DOC catalysts<\/li>\n<\/ul>\n<p>For these reasons, the <strong>Stage V + HVO<\/strong> combination is today the highest-performing configuration environmentally. It achieves GHG reductions of up to 90% in lifecycle analysis. This applies to HVO produced from residual feedstocks certified by <a href=\"https:\/\/www.iscc-system.org\" target=\"_blank\" rel=\"noopener\">ISCC<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"62_FAME_biofuels_B7_B10_B30\"><\/span><strong>6.2 FAME biofuels (B7, B10, B30)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>FAME<\/strong> (<em>Fatty Acid Methyl Esters<\/em>) blends such as B7 or B10 are compatible with Stage V engines. In contrast, high-FAME blends (B20, B30 and above) require specific manufacturer approval. Indeed, FAME has lower oxidation stability, higher residual water content and increased viscosity in cold conditions.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"63_Outlook_Stage_VI_and_zero-emission_engines\"><\/span><strong>6.3 Outlook: Stage VI and zero-emission engines<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The European Commission has launched preparatory work for a future <strong>Stage VI<\/strong>, within the <em>Fit for 55<\/em> programme and the <em>Zero Pollution Action Plan<\/em>. Based on preliminary orientations (public consultation 2023\u20132024), NRMM limits will progressively align with Euro 7 standards. Furthermore, specific provisions will cover hydrogen, electric and hybrid engines. Finally, in-service monitoring (ISM) requirements will be strengthened via onboard PEMS sensors.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"7_How_to_read_and_interpret_an_engine_nameplate\"><\/span><strong>7. How to read and interpret an engine nameplate<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>An engine nameplate quickly confirms regulatory compliance with the applicable <strong>generator set emission standards<\/strong>. Here is what to check:<\/p>\n<table width=\"567\">\n<thead>\n<tr>\n<td width=\"189\"><strong>Information<\/strong><\/td>\n<td width=\"189\"><strong>Where to find it<\/strong><\/td>\n<td width=\"189\"><strong>What it indicates<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Engine category<\/td>\n<td>Engine nameplate<\/td>\n<td>NRE, NRG, NRS\u2026<\/td>\n<\/tr>\n<tr>\n<td>Regulatory stage<\/td>\n<td>Engine nameplate<\/td>\n<td>&#8220;Stage V&#8221; or &#8220;STAGE V&#8221;<\/td>\n<\/tr>\n<tr>\n<td>Rated power (kW)<\/td>\n<td>Nameplate + technical docs<\/td>\n<td>Determines the applicable sub-category<\/td>\n<\/tr>\n<tr>\n<td>Type-approval number<\/td>\n<td>Nameplate or certificate<\/td>\n<td>Format: e[State no.]*[approval no.]<\/td>\n<\/tr>\n<tr>\n<td>Year of manufacture<\/td>\n<td>Engine nameplate<\/td>\n<td>Allows verification of the application schedule<\/td>\n<\/tr>\n<tr>\n<td>Rated speed (rpm)<\/td>\n<td>Nameplate + docs<\/td>\n<td>1,500 rpm (50 Hz) or 1,800 rpm (60 Hz)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>Important:<\/strong> An engine marketed as &#8220;Stage V ready&#8221; or &#8220;Stage V compliant&#8221; without an official type-approval number is not type-approved. This commercial claim does not constitute regulatory compliance under Regulation 2016\/1628.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"8_Dagartech_Rental_Plus_EU_Stage_V_range_regulatory_compliance_as_the_starting_point\"><\/span><strong>8. Dagartech Rental Plus EU Stage V range: regulatory compliance as the starting point<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>At <a href=\"https:\/\/www.dagartech.com\/en\/\">Dagartech<\/a>, we manufacture <a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/\">generator sets<\/a> at our factory in La Muela (Zaragoza, Spain). Our <a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/rental-plus-range\/\">Rental Plus range<\/a> meets the <strong>generator set emission standards<\/strong> of Regulation (EU) 2016\/1628 from the moment of commissioning. In short, <strong>EU Stage V<\/strong> compliance is not an option. It is the baseline standard of every Rental Plus unit.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Stage_V_type-approved_engines_in_the_range\"><\/span><strong>Stage V type-approved engines in the range<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table width=\"567\">\n<thead>\n<tr>\n<td width=\"142\"><strong>Engine<\/strong><\/td>\n<td width=\"100\"><strong>Category<\/strong><\/td>\n<td width=\"155\"><strong>Power range<\/strong><\/td>\n<td width=\"170\"><strong>Product page<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/engine-volvo\/\">Volvo Penta<\/a><\/strong> (TAD \/ TWD)<\/td>\n<td>NRE-c<\/td>\n<td>250 \u2013 670+ kVA<\/td>\n<td><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/engine-volvo\/\">View Volvo sets \u2192<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/engine-deutz\/\">Deutz<\/a><\/strong> (TCD)<\/td>\n<td>NRE-c<\/td>\n<td>30 \u2013 100 kVA<\/td>\n<td><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/engine-deutz\/\">View Deutz sets \u2192<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/engine-perkins\/\">Perkins<\/a><\/strong> (400J \/ 1200)<\/td>\n<td>NRE-c<\/td>\n<td>20 \u2013 250 kVA<\/td>\n<td><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/engine-perkins\/\">View Perkins sets \u2192<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/engine-cummins\/\">Cummins<\/a><\/strong> (B \/ L Series)<\/td>\n<td>NRE-c<\/td>\n<td>100 \u2013 500+ kVA<\/td>\n<td><a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/engine-cummins\/\">View Cummins sets \u2192<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Every Rental Plus generator set is delivered with:<\/p>\n<ul>\n<li>The <strong>Stage V engine type-approval certificate<\/strong><\/li>\n<li>The <strong>CE declaration of conformity<\/strong> for the complete set<\/li>\n<li>The <strong>aftertreatment system documentation<\/strong> (DOC, DPF, SCR by power rating)<\/li>\n<li>The <strong>maintenance plan<\/strong>, including DPF regeneration intervals and AdBlue refill schedules<\/li>\n<li><strong>HVO compatibility confirmation<\/strong> per the applicable manufacturer bulletin<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"A_design_built_to_minimise_Stage_V_operational_risks\"><\/span><strong>A design built to minimise Stage V operational risks<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The Rental Plus range incorporates several features designed to prevent the operational issues specific to Stage V engines:<\/p>\n<ul>\n<li><strong>Optimised thermal management:<\/strong> the Rental Plus canopy is designed to maintain sufficient exhaust temperatures even at partial load, favouring passive DPF regeneration<\/li>\n<li><strong>Integrated AdBlue alerts:<\/strong> control panels display the AdBlue level with early warnings at 20% and 10% reserve<\/li>\n<li><strong>Maintenance accessibility:<\/strong> DPF filters, AdBlue tanks and SCR system check points are accessible without removing the canopy<\/li>\n<li><strong>Regeneration logging:<\/strong> controllers record the DPF regeneration history for preventive monitoring<\/li>\n<\/ul>\n<p>For <a href=\"https:\/\/www.dagartech.com\/en\/applications\/machinery-leasing\/\">machinery rental applications<\/a>, this design is particularly valuable. It enables Stage V sets to be deployed on LEZ construction sites without compliance risk. Moreover, maintenance costs remain predictable and controlled.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Need_guidance_on_generator_set_emission_standards\"><\/span><strong>Need guidance on generator set emission standards?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Regulatory questions around generator set emission standards are often complex. This covers the Stage V scope of application, the mobile versus stationary machinery distinction, fuel compatibility and public tender requirements. In all these cases, our technical team is at your disposal.<\/p>\n<p>\u2192 <a href=\"https:\/\/www.dagartech.com\/en\/technical-support\/\">Visit our technical support section<\/a> or <a href=\"https:\/\/www.dagartech.com\/en\/contact\/\">contact our team directly<\/a> \u2014 Monday to Friday, 9am to 6pm, at +34 976 14 16 55.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Generator set emission standards<\/strong> under EU Stage V have fundamentally transformed the mobile generator set industry. Beyond the legal obligation, they require complex aftertreatment technologies \u2014 DPF, SCR and AdBlue. As a result, operational and sizing parameters have changed significantly. Maintenance requirements have also evolved compared to previous generations.<\/p>\n<p>Before purchasing a generator set, five questions must be asked systematically:<\/p>\n<ol>\n<li><strong>Does the set fall within the scope of Regulation 2016\/1628?<\/strong> (mobile or semi-fixed = yes; permanently installed = check)<\/li>\n<li><strong>Does the engine hold a valid EU Stage V type-approval<\/strong> confirming compliance with generator set emission standards, with an official number?<\/li>\n<li><strong>What is the intended load level<\/strong> relative to rated power, and does the average load factor allow passive DPF regeneration?<\/li>\n<li><strong>Has AdBlue logistics been planned<\/strong> for the operating site?<\/li>\n<li><strong>Does the engine carry HVO approval<\/strong> if you plan to use this fuel in future?<\/li>\n<\/ol>\n<p>In summary, the <a href=\"https:\/\/www.dagartech.com\/en\/generator-sets\/rental-plus-range\/\">Dagartech Rental Plus EU Stage V range<\/a> delivers a complete technical response to current <strong>generator set emission standards<\/strong>. It includes all compliance documentation and associated technical support. It is therefore the ideal choice for buyers, rental companies and fleet managers who prioritise both regulatory compliance and operational performance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understanding generator set emission standards is now essential before any purchase decision. Today, buying a generator set is no longer simply a matter of choosing a power rating and a price. Since the European regulation on non-road mobile machinery emissions came into force, every purchase requires understanding a precise regulatory framework. This framework determines the [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":8596,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[374],"class_list":["post-9343","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categoria","tag-generator-set-emission-standards"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Generator Set Emission Standards: A Guide to EU Stage V<\/title>\n<meta name=\"description\" content=\"Stage V, NRE\/NRG categories, emissions limits, DPF, SCR and AdBlue: everything you need to know before buying a generator set.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Generator Set Emission Standards: A Guide to EU Stage V\" \/>\n<meta property=\"og:description\" content=\"Stage V, NRE\/NRG categories, emissions limits, DPF, SCR and AdBlue: everything you need to know before buying a generator set.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/\" \/>\n<meta property=\"og:site_name\" content=\"Dagartech EN\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/dagartech\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-25T11:18:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-02T11:38:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"950\" \/>\n\t<meta property=\"og:image:height\" content=\"1513\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"iroyo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@dagartech\" \/>\n<meta name=\"twitter:site\" content=\"@dagartech\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"iroyo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"13 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/\"},\"author\":{\"name\":\"iroyo\",\"@id\":\"https:\/\/www.dagartech.com\/en\/#\/schema\/person\/e56ff9c257c0eb9a5d84334a7798a39e\"},\"headline\":\"Emission standards: what you need to know before buying a generator set\",\"datePublished\":\"2026-05-25T11:18:08+00:00\",\"dateModified\":\"2026-06-02T11:38:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/\"},\"wordCount\":2633,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg\",\"keywords\":[\"Generator set emission standards\"],\"articleSection\":[\"Sin categor\u00eda\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#respond\"]}]},{\"@type\":[\"WebPage\",\"ItemPage\"],\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/\",\"url\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/\",\"name\":\"Generator Set Emission Standards: A Guide to EU Stage V\",\"isPartOf\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg\",\"datePublished\":\"2026-05-25T11:18:08+00:00\",\"dateModified\":\"2026-06-02T11:38:26+00:00\",\"description\":\"Stage V, NRE\/NRG categories, emissions limits, DPF, SCR and AdBlue: everything you need to know before buying a generator set.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#primaryimage\",\"url\":\"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg\",\"contentUrl\":\"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg\",\"width\":950,\"height\":1513,\"caption\":\"Generator sets for Data Centers\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\/\/www.dagartech.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Emission standards: what you need to know before buying a generator set\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.dagartech.com\/en\/#website\",\"url\":\"https:\/\/www.dagartech.com\/en\/\",\"name\":\"Dagartech\",\"description\":\"Somos fabricantes de Grupos Electr\u00f3genos. M\u00e1ximos est\u00e1ndares de Calidad. Elevada Fiabilidad y Seguridad. Nos adaptamos a las necesidades de cada proyecto.\",\"publisher\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.dagartech.com\/en\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.dagartech.com\/en\/#organization\",\"name\":\"Dagartech\",\"url\":\"https:\/\/www.dagartech.com\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.dagartech.com\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/02\/Logo-dagartech.png\",\"contentUrl\":\"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/02\/Logo-dagartech.png\",\"width\":5692,\"height\":3200,\"caption\":\"Dagartech\"},\"image\":{\"@id\":\"https:\/\/www.dagartech.com\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/dagartech\/\",\"https:\/\/x.com\/dagartech\",\"https:\/\/www.youtube.com\/channel\/UC088MotzpZAfzdS2yiXSUNg\",\"https:\/\/www.instagram.com\/dagartech_energy_solutions\/?igshid=MTNiYzNiMzkwZA\",\"https:\/\/www.linkedin.com\/company\/dagartech\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.dagartech.com\/en\/#\/schema\/person\/e56ff9c257c0eb9a5d84334a7798a39e\",\"name\":\"iroyo\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.dagartech.com\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/fde49a271e09dc9daebd217d87143f31?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/fde49a271e09dc9daebd217d87143f31?s=96&d=mm&r=g\",\"caption\":\"iroyo\"},\"sameAs\":[\"http:\/\/www.dagartech.com\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Generator Set Emission Standards: A Guide to EU Stage V","description":"Stage V, NRE\/NRG categories, emissions limits, DPF, SCR and AdBlue: everything you need to know before buying a generator set.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/","og_locale":"en_GB","og_type":"article","og_title":"Generator Set Emission Standards: A Guide to EU Stage V","og_description":"Stage V, NRE\/NRG categories, emissions limits, DPF, SCR and AdBlue: everything you need to know before buying a generator set.","og_url":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/","og_site_name":"Dagartech EN","article_publisher":"https:\/\/www.facebook.com\/dagartech\/","article_published_time":"2026-05-25T11:18:08+00:00","article_modified_time":"2026-06-02T11:38:26+00:00","og_image":[{"width":950,"height":1513,"url":"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg","type":"image\/jpeg"}],"author":"iroyo","twitter_card":"summary_large_image","twitter_creator":"@dagartech","twitter_site":"@dagartech","twitter_misc":{"Written by":"iroyo","Est. reading time":"13 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"NewsArticle","@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#article","isPartOf":{"@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/"},"author":{"name":"iroyo","@id":"https:\/\/www.dagartech.com\/en\/#\/schema\/person\/e56ff9c257c0eb9a5d84334a7798a39e"},"headline":"Emission standards: what you need to know before buying a generator set","datePublished":"2026-05-25T11:18:08+00:00","dateModified":"2026-06-02T11:38:26+00:00","mainEntityOfPage":{"@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/"},"wordCount":2633,"commentCount":0,"publisher":{"@id":"https:\/\/www.dagartech.com\/en\/#organization"},"image":{"@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#primaryimage"},"thumbnailUrl":"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg","keywords":["Generator set emission standards"],"articleSection":["Sin categor\u00eda"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#respond"]}]},{"@type":["WebPage","ItemPage"],"@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/","url":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/","name":"Generator Set Emission Standards: A Guide to EU Stage V","isPartOf":{"@id":"https:\/\/www.dagartech.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#primaryimage"},"image":{"@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#primaryimage"},"thumbnailUrl":"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg","datePublished":"2026-05-25T11:18:08+00:00","dateModified":"2026-06-02T11:38:26+00:00","description":"Stage V, NRE\/NRG categories, emissions limits, DPF, SCR and AdBlue: everything you need to know before buying a generator set.","breadcrumb":{"@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#primaryimage","url":"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg","contentUrl":"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/12\/Blog-\u2013Tendencias-en-DataCenters-2025.jpg","width":950,"height":1513,"caption":"Generator sets for Data Centers"},{"@type":"BreadcrumbList","@id":"https:\/\/www.dagartech.com\/en\/news\/generator-set-emission-standards\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/www.dagartech.com\/en\/"},{"@type":"ListItem","position":2,"name":"Emission standards: what you need to know before buying a generator set"}]},{"@type":"WebSite","@id":"https:\/\/www.dagartech.com\/en\/#website","url":"https:\/\/www.dagartech.com\/en\/","name":"Dagartech","description":"Somos fabricantes de Grupos Electr\u00f3genos. M\u00e1ximos est\u00e1ndares de Calidad. Elevada Fiabilidad y Seguridad. Nos adaptamos a las necesidades de cada proyecto.","publisher":{"@id":"https:\/\/www.dagartech.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.dagartech.com\/en\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.dagartech.com\/en\/#organization","name":"Dagartech","url":"https:\/\/www.dagartech.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.dagartech.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/02\/Logo-dagartech.png","contentUrl":"https:\/\/www.dagartech.com\/en\/wp-content\/uploads\/sites\/4\/2024\/02\/Logo-dagartech.png","width":5692,"height":3200,"caption":"Dagartech"},"image":{"@id":"https:\/\/www.dagartech.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/dagartech\/","https:\/\/x.com\/dagartech","https:\/\/www.youtube.com\/channel\/UC088MotzpZAfzdS2yiXSUNg","https:\/\/www.instagram.com\/dagartech_energy_solutions\/?igshid=MTNiYzNiMzkwZA","https:\/\/www.linkedin.com\/company\/dagartech\/"]},{"@type":"Person","@id":"https:\/\/www.dagartech.com\/en\/#\/schema\/person\/e56ff9c257c0eb9a5d84334a7798a39e","name":"iroyo","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.dagartech.com\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/fde49a271e09dc9daebd217d87143f31?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/fde49a271e09dc9daebd217d87143f31?s=96&d=mm&r=g","caption":"iroyo"},"sameAs":["http:\/\/www.dagartech.com"]}]}},"_links":{"self":[{"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/posts\/9343"}],"collection":[{"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/comments?post=9343"}],"version-history":[{"count":5,"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/posts\/9343\/revisions"}],"predecessor-version":[{"id":9351,"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/posts\/9343\/revisions\/9351"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/media\/8596"}],"wp:attachment":[{"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/media?parent=9343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/categories?post=9343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dagartech.com\/en\/wp-json\/wp\/v2\/tags?post=9343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}