CROSS-STANDARD public interest · Grid-tied PV inverter (storage excluded)

China-to-UK Solar Inverter Compliance Gap Matrix

AI-compiled from official public sources — cross-checked by multiple AI models, not human-verified. Informational only; see disclaimer. Public-interest, source-linked comparison of common China grid-tied PV inverter documentation against UKCA product compliance and ENA G98/G99 grid-connection expectations.

Dataset 2026-06-11 Last verified 2026-06-12 17 rows

GAP MATRIX

Compliance Gap Matrix

Gap matrix
Compliance item Common China baseline United Kingdom (UKCA) Gap / action Source + verification date
EMC Generic Immunity & Emissions — UKCA Framework In China, grid-tied PV inverters typically demonstrate EMC compliance through GB/T 17799.2 (generic immunity, industrial environment) and GB/T 17799.4 (generic emissions, industrial environment), both of which are national recommended standards (推荐性标准, T-standard). These are derived from IEC 61000-6-2 and IEC 61000-6-4 respectively but may lag behind the current IEC edition. EMC is often addressed as part of the NB/T 32004 inverter product standard assessment.GB/T 17799.2 (generic immunity, industrial — recommended standard)
GB/T 17799.4 (generic emissions, industrial — recommended standard)
NB/T 32004 (PV inverter product standard, includes EMC scope)		 Grid-tied PV inverters placed on the GB market must comply with the Electromagnetic Compatibility Regulations 2016 (SI 2016/1091, as retained and amended in UK law). The mandatory legal obligation is compliance with the essential EMC protection requirements and the applicable conformity-marking/documentation duties. UKCA and CE are currently both accepted in Great Britain. UK designated standards such as BS EN IEC 61000-6-2 (generic immunity, industrial environment) and BS EN IEC 61000-6-4 (generic emissions, industrial environment) provide a voluntary presumption-of-conformity route; they are not the mandatory legal obligation and alternative evidence may be used.Electromagnetic Compatibility Regulations 2016 (SI 2016/1091)
BS EN IEC 61000-6-2:2019 (UK designated standard — generic immunity, industrial)
BS EN IEC 61000-6-4:2019 (UK designated standard — generic emissions, industrial)		 The core technical limits in BS EN IEC 61000-6-2/-6-4 and GB/T 17799.2/.4 are both derived from IEC 61000-6-2/-6-4, so the test content is largely aligned. The compliance gap is procedural and jurisdictional: (1) the GB route must support a valid CE or UKCA conformity claim and technical file; UKCA documentation cites UK legislation and any UK designated standards relied upon, while CE documentation relies on the corresponding EU route accepted in GB under SI 2024/696; (2) Chinese CQC/NB/T test reports are not automatically transferable and should be mapped or retested against the UK/EU evidence route used; (3) edition alignment risk remains if the UK designated or EU harmonised standard references a newer IEC edition than the Chinese GB/T version.[INFORMATIONAL] Chinese test data to GB/T 17799.2/.4 provides a useful technical baseline. For GB placement, the mandatory duty is conformity with SI 2016/1091, supported by adequate technical documentation and a valid CE or UKCA route. UK designated standards and UKAS-accredited reports are common evidence routes, but the standards are voluntary and self-declaration is permitted under the EMC Regulations. UK Parliament / legislation.gov.uk2026-06-11 · unverified
EMC Harmonic Current Emissions — UKCA Framework In China, harmonic current emission limits for grid-connected equipment are addressed through GB 17625.1 (harmonic current emissions, equipment input current ≤16 A per phase, a mandatory standard equivalent to IEC 61000-3-2) and GB/T 17625.8 (harmonic current emissions, >16 A and ≤75 A per phase, a recommended standard equivalent to IEC 61000-3-12). GB 17625.1 is a compulsory national standard (强制性标准). For PV inverters, harmonic performance at the grid connection point is also governed by grid-code requirements under GB/T 19939 and the NB/T 32004 inverter standard.GB 17625.1 (mandatory — harmonic current emissions, ≤16 A/phase, equiv. IEC 61000-3-2)
GB/T 17625.8 (recommended — harmonic current emissions, >16 A and ≤75 A/phase, equiv. IEC 61000-3-12)
GB/T 19939 (PV grid-connection technical requirements)
NB/T 32004 (PV inverter product standard)		 Grid-tied PV inverters connected to the public low-voltage supply must meet the essential EMC protection requirements under the Electromagnetic Compatibility Regulations 2016. Harmonic current emission evidence is commonly demonstrated through voluntary UK designated standards: BS EN IEC 61000-3-2 (equipment input current <=16 A per phase) or BS EN IEC 61000-3-12 (equipment input current >16 A and <=75 A per phase), depending on the inverter's rated input current. Correct use of these standards can give presumption of conformity; the standards themselves are not mandatory legal obligations. They are listed as UK designated standards under the EMC Regulations 2016 via notices of publication on gov.uk. Note: confirm the currently designated version on the gov.uk EMC designated standards page before compiling a technical file.Electromagnetic Compatibility Regulations 2016 (SI 2016/1091)
BS EN IEC 61000-3-2:2019+A1:2021 (UK designated standard — harmonic current emissions, ≤16 A/phase; confirm current listed version at gov.uk/government/publications/designated-standards-emc as IEC 61000-3-2 Ed 5.2 was published 2024)
BS EN IEC 61000-3-12:2011 (UK designated standard — harmonic current emissions, >16 A and ≤75 A/phase; confirm current listed version at gov.uk EMC designated standards page)		 The technical harmonic limits in BS EN IEC 61000-3-2/-3-12 and GB 17625.1/GB/T 17625.8 are both derived from IEC 61000-3-2/-3-12, so limit values are largely aligned. Key gaps: (1) conformity route: Chinese CQC test reports under GB 17625.1 are not automatically accepted for a GB CE or UKCA route and should be mapped or retested against the applicable evidence route; (2) edition currency: GB 17625.1 may reference an older IEC 61000-3-2 edition, so verify that test conditions match the current standard relied upon; (3) for inverters >16 A/phase, the Rsce boundary conditions in GB/T 17625.8 vs BS EN IEC 61000-3-12 should be verified for the specific grid connection point; (4) self-declaration is permissible under SI 2016/1091 for EMC, and no mandatory third-party certification body is required, but the technical file must be retained for 10 years.[INFORMATIONAL] Chinese GB 17625.1 / GB/T 17625.8 test data is a relevant technical starting point, but it does not by itself satisfy GB market duties. The mandatory obligation is conformity with SI 2016/1091, supported by adequate technical documentation and a valid CE or UKCA route. BS EN IEC 61000-3-2/-3-12 are voluntary designated-standard routes to presumption of conformity; self-declaration is permitted and a UK Approved Body is not mandated for EMC. UK Parliament / legislation.gov.uk2026-06-11 · unverified
Restriction of Hazardous Substances (RoHS) Chinese manufacturers commonly comply with GB/T 26572-2011, which sets the same restricted substances and maximum concentration values (0.1 % by weight for most substances, 0.01 % for cadmium) aligned with IEC 63000. Products for the Chinese domestic market must also carry the SJ/T 11364 hazardous-substance label.GB/T 26572-2011 Requirements of Concentration Limits for Certain Restricted Substances in Electrical and Electronic Products
SJ/T 11364-2014 Marking for the Restricted Use of Hazardous Substances in Electronic and Electrical Products		 Grid-tied PV inverters placed on the UK market must restrict lead, mercury, cadmium, hexavalent chromium, PBB, PBDE, DEHP, BBP, DBP and DIBP to prescribed maximum concentration values in homogeneous materials under the UK RoHS Regulations 2012 (as amended). Manufacturers must maintain technical documentation and use an accepted conformity-marking route. For Great Britain, UKCA and CE are currently both accepted; UK RoHS applies independently of EU RoHS post-Brexit.The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 (SI 2012/3032)
The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (Amendment) Regulations 2019 (SI 2019/492)		 The substance lists and thresholds are substantively equivalent, so test data generated against GB/T 26572 is typically reusable as technical evidence. The gap is administrative: (1) UK-specific technical documentation must be compiled and available to the GB importer/authorised representative; (2) the product must use an accepted GB conformity-marking route, currently UKCA or CE; (3) UK RoHS exemptions may diverge from EU RoHS over time as the UK issues separate exemption decisions.[INFORMATIONAL] Substance compliance against GB/T 26572 is likely useful technical evidence, but UK-specific documentation, a GB-based economic operator, and an accepted UKCA or CE conformity-marking route are required before GB market entry. UK Government (legislation.gov.uk)2026-06-11 · unverified
Waste Electrical and Electronic Equipment (WEEE) — Producer Registration China operates a producer take-back and fund-contribution scheme under the 'Management Measures for the Prevention and Control of Pollution from Electronic and Electrical Products' (MIIT Order No. 32, 2016) and the 'Waste Electrical and Electronic Products Recycling Administration Regulations' (State Council Order No. 551, 2009, amended 2019). Producers contributing to the China WEEE Fund report production/import volumes annually. There is no direct equivalent to a UK PCS membership model. Note: fund contribution rates are set by the Ministry of Finance and are subject to periodic revision; exporters should verify current rates with a qualified China regulatory advisor rather than relying on a fixed figure here.废弃电器电子产品回收处理管理条例 (State Council Order No. 551, 2009, amended 2019)
电器电子产品有害物质限制使用管理办法 (MIIT Order No. 32, 2016)		 Any producer (manufacturer, importer or distributor acting as producer) that places EEE — including PV inverters — on the GB market must register with a WEEE Producer Compliance Scheme (PCS) approved by the Environment Agency (England/Wales), SEPA (Scotland) or NIEA (Northern Ireland). Producers must finance collection, treatment and recycling proportionate to their market share, and report annually. The UK WEEE Regulations 2013 apply independently of EU WEEE post-Brexit.The Waste Electrical and Electronic Equipment Regulations 2013 (SI 2013/3113)
The Waste Electrical and Electronic Equipment (Amendment) (EU Exit) Regulations 2019 (SI 2019/428)		 China has no equivalent to UK PCS registration. A Chinese manufacturer exporting to GB must: (1) appoint a UK-based authorised representative who registers as the producer with a WEEE PCS before first sale; (2) pay annual PCS membership fees and finance take-back obligations based on GB sales volumes; (3) apply WEEE crossed-bin symbol to product and packaging. Failure to register before market entry is a criminal offence under UK WEEE Regulations.[INFORMATIONAL] This is the most significant structural gap for China-origin PV inverter exporters. No Chinese domestic equivalent satisfies this requirement. A UK-registered authorised representative and PCS membership must be arranged before first GB sale. UK Government (legislation.gov.uk)2026-06-11 · unverified
UK REACH — Chemical Substances Registration and SVHC Obligations China operates a separate chemical management regime under the 'Measures for Environmental Management Registration of New Chemical Substances' (MEE Order No. 12, 2021) and the existing Inventory of Existing Chemical Substances in China (IECSC, 2013 consolidated version with periodic updates). Exporters do not register substances under Chinese REACH equivalents for export purposes; compliance is assessed at the product/article level. There is no direct Chinese equivalent to EU/UK REACH article SVHC notification for downstream importers. The IECSC and UK REACH are entirely separate instruments with no mutual recognition: a substance on IECSC is not thereby exempt from UK REACH registration obligations and vice versa.新化学物质环境管理登记办法 (MEE Order No. 12, 2021)
Inventory of Existing Chemical Substances in China (IECSC, 2013 consolidated version)		 UK REACH (retained in GB law via the European Union (Withdrawal) Act 2018 and the REACH etc. (Amendment etc.) (EU Exit) Regulations 2019) requires registration of chemical substances manufactured in or imported into GB above 1 tonne/year. Importers of articles (including PV inverters) must notify HSE if articles contain Substances of Very High Concern (SVHC) above 0.1 % w/w AND above 1 tonne/year total. The UK SVHC Candidate List is maintained by HSE and may diverge from the EU ECHA list over time.UK REACH: Regulation (EC) No 1907/2006 as retained in GB law
The REACH etc. (Amendment etc.) (EU Exit) Regulations 2019 (SI 2019/758)
HSE UK REACH Candidate List (SVHC)		 The primary burden falls on the GB importer, not the CN manufacturer, but the manufacturer must supply an SVHC declaration (article composition data) to enable the importer to assess notification obligations. Key gaps: (1) UK REACH SVHC Candidate List is maintained separately from EU ECHA and will diverge — manufacturers must track both lists if selling to both markets; (2) if a GB importer registers a substance under UK REACH, that registration does NOT cover EU market entry (separate EU REACH registration required); (3) CN manufacturers have no domestic process generating UK REACH-ready substance registration dossiers.[INFORMATIONAL] UK REACH obligations primarily rest with the GB importer. The CN manufacturer's key action is to provide accurate SVHC/composition declarations. Manufacturers selling to both EU and GB face a dual-registration burden as EU REACH and UK REACH registrations are not mutually recognised post-Brexit. UK Health and Safety Executive (HSE)2026-06-11 · unverified
Grid Connection Framework — Applicable Engineering Recommendation Chinese grid-connected PV inverters are certified to GB/T 19964 (Technical Requirements for the Connection of Photovoltaic Power Stations to Power Systems) and related NB/T standards. These cover inverter protection, anti-islanding, voltage/frequency ride-through and power quality but are issued by China's Standardisation Administration and are not recognised by UK DNOs.GB/T 19964-2024 Technical Requirements for the Connection of Photovoltaic Power Stations to Power Systems
NB/T 32004-2018 Technical Specifications of Photovoltaic Grid-Connected Inverters		 Grid-connected PV inverters in Great Britain are connected through the DNO connection framework. The legal and contractual obligation is to obtain and comply with the distribution connection permission under the electricity regulatory framework. ENA Engineering Recommendations G98 (≤16 A/phase, micro-generation) and G99 (>16 A/phase, larger generation) are the DNO technical connection rules normally specified as connection conditions; they are not Acts or Regulations in themselves. G98 covers type-tested devices; G99 requires individual or type-tested connection agreements with the DNO. Both draw on EN 50549 and add UK-specific requirements and registration obligations.ENA Engineering Recommendation G98 Issue 2 (March 2025)
ENA Engineering Recommendation G99 Issue 2 (March 2025)
EN 50549-1:2019 (≤16 A/phase)
EN 50549-2:2019 (>16 A/phase)		 GB/T 19964 compliance is not transferable to the UK market. For DNO connection, the inverter must satisfy the DNO technical conditions, normally demonstrated by G98 or G99 type testing and ENA Type Test Register listing. G98/G99 are technical connection routes imposed through DNO connection terms rather than mandatory statutes; no mutual recognition agreement exists between GB and CN grid codes.Informational only. An inverter certified only to Chinese grid codes (GB/T 19964) will not be accepted for GB distribution connection unless the DNO technical connection requirements are met. In practice this means G98/G99 type-test registration on the ENA register or equivalent DNO-accepted evidence. Energy Networks Association (ENA)2026-06-11 · unverified
Type-Test Verification & ENA Type Test Register Chinese inverters undergo type certification under CGC (China General Certification Centre) or CQC schemes, testing to GB/T 19964 and NB/T 32004. These tests cover broadly similar electrical parameters but to different set-points, disconnection time-windows and communication protocols (e.g. different frequency/voltage trip thresholds) defined by the Chinese grid operator (State Grid / Southern Grid). Results are not accepted by ENA or UK DNOs.CGC-GF035:2018 (CGC type certification for PV inverters)
CQC 3304-2022 (CQC certification for grid-connected PV inverters)
GB/T 19964-2024
NB/T 32004-2018		 Under the GB DNO connection process, inverter models are normally assessed through G98/G99 type-test evidence. A UKAS-accredited or equivalent independent laboratory may test the model to confirm the protection, anti-islanding, voltage/frequency ride-through and power quality settings specified by the relevant ENA recommendation. The type-test verification report is submitted to the ENA for listing on the publicly searchable ENA Type Test Register. DNOs use this register as evidence when deciding whether an inverter can be connected; the enforceable requirement is the DNO connection approval and its conditions, not the ENA recommendation as statute.ENA Engineering Recommendation G98 — Appendix A (Type Test requirements)
ENA Engineering Recommendation G99 — Appendix A (Type Test requirements)
ENA Type Test Register (publicly searchable online)		 Chinese CGC/CQC type-test certificates are not recognised by the ENA or UK DNOs. A separate G98/G99 type test and ENA register listing is normally required for DNO acceptance. The named ENA recommendations and ENA register are technical connection mechanisms used by DNOs, not Acts or Regulations; the enforceable obligation is the DNO connection approval and its conditions.Informational only. A Chinese inverter with CGC/CQC certification normally still needs G98/G99 type testing and ENA register listing before UK deployment, because those are the DNO-accepted evidence routes for connection approval. Energy Networks Association (ENA) — ENA Type Test Register (also accessible at https://www.ena-eng.org/gen-ttr/)2026-06-12 · unverified
EREC G99 DNO Registration & Connection Agreement (>16 A/phase) In China, grid connection of PV systems >6 kW is governed by the State Grid / Southern Grid grid-connection technical guidelines and the National Development and Reform Commission (NDRC) distributed-PV policy framework. Connection applications are submitted to the local grid company; approved equipment lists (ABB, Huawei, Sungrow, etc.) are maintained by the grid operator. The process and approval body are entirely different from UK DNOs.Q/GDW 617-2011 (State Grid Technical Guideline for Grid Connection of PV Power Stations)
NDRC Distributed PV Policy Framework (2013 onwards)
GB/T 19964-2012		 Generating units >16 A/phase (typically >3.68 kW single-phase or >11 kW three-phase) must follow the G99 process: the installer submits a connection application to the relevant DNO, who assesses network impact. For type-tested equipment on the ENA register, a simplified 'Type A' notification or 'Type B/C/D' full application applies depending on capacity. The DNO issues a Connection Agreement before the unit can be energised. The ENA Connections Smart Tool (CST) is the recommended starting point.ENA Engineering Recommendation G99 Issue 2 (March 2025)
Electricity Act 1989 (GB) — Section 16 connection rights
ENA Connections Smart Tool (CST)		 Chinese grid-connection approval from State Grid or Southern Grid has no legal standing in Great Britain. For each UK installation >16 A/phase, the installer must submit a G99 application to the local GB DNO (e.g. UK Power Networks, Western Power Distribution/National Grid ED, SP Energy Networks, Northern Powergrid, Electricity North West, Scottish & Southern Electricity Networks). DNO approval timelines can range from weeks to months for larger systems.Informational only. Inverters >16 A/phase require a separate G99 DNO connection application for every UK installation site, regardless of prior Chinese grid approvals. DNO processing times add project-planning risk. Energy Networks Association (ENA) — G99 publications and connection process2026-06-11 · unverified
Export Limitation — G100 Active Export Control China addresses export control through smart meters, grid-operator-mandated zero-export relays and inverter-level settings under GB/T 19964 and utility-specific technical requirements. Some Chinese inverters support configurable export-limit modes (e.g. Huawei SUN2000, Sungrow SG series) but these are factory-set to Chinese utility protocols and set-points, not to G100 requirements.GB/T 19964-2012 (Section 8 — active power control)
Q/GDW 1480-2015 (State Grid distributed PV access technical regulations)
Manufacturer-specific export-limit firmware (Huawei / Sungrow / Growatt etc.)		 ENA Engineering Recommendation G100 (Active Export Control systems) applies where a DNO grants connection subject to a zero-export or limited-export condition. In such cases the enforceable obligation is the DNO connection condition, and G100 is the technical route normally used to show that the inverter or an approved export-limiting device can prevent grid export above the permitted level. G100 defines performance and type-test expectations for export-limiting equipment. Many residential and commercial PV installations in constrained GB grid areas are connected under G100 conditions.ENA Engineering Recommendation G100 Issue 2 Amendment 2 (2023)
ENA Engineering Recommendation G98/G99 (connection pre-conditions)
BS EN 50549-1/2:2019		 Where a UK DNO imposes an export-limitation condition, the enforceable obligation is the connection agreement condition. G100 is the ENA technical route used to demonstrate active export control performance; it is not itself the statutory obligation. A device that only supports Chinese utility export-limit modes will normally need G100-compliant firmware and evidence separately from G98/G99 listing.Informational only. Chinese inverters with built-in export-limit capability are not automatically acceptable under a GB DNO export-limitation condition. Where that condition is imposed, G100 evidence is normally required in addition to G98/G99 connection evidence. Energy Networks Association (ENA) — G100 Issue 2 Amendment 2 (2023)2026-06-12 · unverified
UKCA / CE Marking — Conformity Marking for Great Britain China has no direct equivalent voluntary or mandatory conformity mark that is accepted in the UK. PV inverters are not in the China Compulsory Certification (CCC / 3C) catalogue. Chinese manufacturers typically hold GB/T 37408-2019 or GB/T 19964-2012 type-test reports and, optionally, a CQC voluntary mark. None of these are recognised by UK market surveillance authorities.GB/T 37408-2019 (PV inverter grid connection — voluntary type-test)
GB/T 19964-2012
CQC voluntary certification (not UKCA/CE equivalent)		 Grid-tied PV inverters placed on the Great Britain (England, Scotland, Wales) market must bear either the UKCA (UK Conformity Assessed) mark or the CE mark. Under The Product Safety and Metrology etc. (Amendment) Regulations 2024 (SI 2024/696, in force 1 October 2024), CE marking is recognised indefinitely alongside UKCA for 21 product regulation categories, expressly covering electrical equipment (EESR 2016) and EMC (EMC Regs 2016) — meaning a valid CE mark is currently accepted in GB with no published withdrawal deadline. No sector-specific carve-outs apply to PV inverters; the only excluded categories are medical devices, construction products, marine equipment, rail, cableways, transportable pressure equipment, and unmanned aircraft systems. For Northern Ireland, CE marking remains required where EU rules apply under the Windsor Framework; UKCA alone is not valid for NI. CE is therefore the practical single-mark route for both GB and NI. The Product Regulation and Metrology Act 2025 (Royal Assent 21 July 2025) is an enabling Act that may lead to future changes — monitor OPSS for implementing regulations. The Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101) and Electromagnetic Compatibility Regulations 2016 (SI 2016/1091) are the primary UK product regulations for PV inverters (AC 50-1000 V / DC 75-1500 V scope).Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101)
Electromagnetic Compatibility Regulations 2016 (SI 2016/1091)
Product Safety and Metrology (Amendment) Regulations 2024
Windsor Framework (Northern Ireland — CE only)		 Chinese manufacturers selling only in China normally have no UKCA or CE mark for GB. To use CE or UKCA, the manufacturer must meet the applicable UK regulations (or the corresponding EU rules where CE is used), compile a technical file, and issue the appropriate Declaration of Conformity. EN/BS EN/UK designated standards such as BS EN 62109-1/-2 and BS EN 61000 series are voluntary conformity routes that can give presumption of conformity; they are not the mandatory legal obligation and alternative technical evidence may be used. No CN certification shortcut exists.A Chinese PV inverter manufacturer can use CE marking or UKCA marking for GB market access under current UK policy. The mandatory obligation is compliance with the applicable UK product regulations, supported by a technical file and the appropriate DoC. Harmonised/designated standards remain voluntary routes to presumption of conformity; without adequate conformity evidence, the product cannot legally be placed on the GB market. UK Government (Department for Business and Trade)2026-06-11 · unverified
UK Declaration of Conformity (UK DoC) and Technical File China does not require a Declaration of Conformity for PV inverters in the sense used by UK/EU product regulations. Chinese manufacturers produce type-test reports and factory inspection records under GB/T standards, issued by accredited labs such as CESI (China Electric Power Research Institute). These are internal compliance records, not a public-facing DoC in the UK/EU legal sense, and are not recognised by UK market surveillance authorities.GB/T 37408-2019 type-test report (CESI or equivalent accredited lab)
No equivalent public DoC instrument under CN product law		 Before placing a UKCA-marked product on the GB market, the manufacturer (or their UK authorised representative) must prepare a UK Declaration of Conformity (UK DoC) — a formal written statement that the product meets all applicable UK product regulations. The UK DoC must include: manufacturer or authorised representative name and full UK address; product description and identification (type, batch, serial number); reference to the applicable UK legislation; list of designated/harmonised standards applied (with dates); details of any UK-approved body involved; authorised signatory name, date, and signature. The technical file supporting the DoC must be retained for 10 years after each product is last placed on the market and must be made available to market surveillance authorities on request. This 10-year retention period is confirmed as the standard requirement under both EESR 2016 (Schedule 7) and EMC Regs 2016 (Schedule 4); no PV-inverter-specific derogation has been identified. If CE marking is used instead, an EU Declaration of Conformity (EU DoC) is used, which follows EU harmonised standards — it is functionally equivalent for GB purposes under current indefinite CE recognition policy (SI 2024/696).Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101) — Schedule 3 (DoC content)
Electromagnetic Compatibility Regulations 2016 (SI 2016/1091)
UK designated standards: BS EN 62109-1/-2 (PV inverter safety), BS EN 61000 series (EMC)		 Most Chinese PV inverter factories have no UK DoC and no UK-compliant technical file. If UKCA is used, the UK DoC must reference UK legislation and any UK designated standards relied upon. If CE is used under GB continued recognition, a valid EU DoC may serve the equivalent function, but the importer must still be able to provide conformity evidence to UK authorities. Standards cited in either DoC are voluntary harmonised/designated routes to presumption of conformity, not mandatory legal obligations.For UKCA-marked goods, a UK Declaration of Conformity referencing applicable UK legislation is required. Where CE marking is used under current GB recognition policy, an EU Declaration of Conformity serves the equivalent function. In both cases, standards are voluntary conformity tools and the legal duty remains compliance with the applicable regulations and retention of adequate technical documentation. UK Government (Department for Business and Trade)2026-06-11 · unverified
UK Economic Operator — Authorised Representative / Importer and Product Labelling China has no concept of a UK authorised representative or a GB-based responsible person. Chinese manufacturers export products directly; importers in the destination country handle local compliance. There is no CN regulatory framework requiring a foreign responsible person to be named on the product or to hold technical files on behalf of the Chinese manufacturer for a foreign market.No CN equivalent — domestic product safety obligations are manufacturer-side only under GB standards UK product regulations (EESR 2016, EMC 2016) define an economic operator hierarchy: manufacturer → UK authorised representative (UK AR) → importer → distributor. A non-UK manufacturer may appoint a UK-based authorised representative (an individual or company established in the UK) by written mandate to carry out delegated tasks including: maintaining the technical file, holding a copy of the UK DoC for 10 years, liaising with market surveillance authorities (Office for Product Safety and Standards, OPSS / HSE), and being the named contact on product labelling. Where no UK AR is appointed, the importer assumes equivalent responsibilities. UK product labelling must show: (1) the conformity mark (UKCA or CE, min. 5 mm height); (2) the manufacturer's name, trade name or trademark, and postal address; (3) the UK importer's or UK AR's name and postal address (if the manufacturer is outside the UK) — either on the product, packaging, an adhesive label, or an accompanying document (the label-on-document flexibility applies until 31 December 2027 for UKCA; no equivalent deadline published for CE-marked goods). The EESR 2016 Regulation 10 importer-address obligation (name, registered trade name or trademark, and postal address on product, packaging, or accompanying document) applies regardless of whether CE or UKCA marking is used — OPSS guidance confirms a UK-based contact is required in either case (see gov.uk/government/publications/electrical-equipment-safety-regulations-2016/electrical-equipment-safety-regulations-2016-great-britain). Northern Ireland follows EU rules; the Windsor Framework requires CE marking and an EU economic operator chain.Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101) — Regulations 6–9 (economic operators), Regulation 10 (labelling)
Electromagnetic Compatibility Regulations 2016 (SI 2016/1091)
Product Safety and Metrology (Amendment) Regulations 2024 (label-on-document flexibility to 2027-12-31)
Windsor Framework (Northern Ireland — EU economic operator chain)		 The majority of Chinese PV inverter manufacturers have no UK authorised representative and no UK-based entity willing to hold the technical file and DoC. Without a UK AR or a UK-based importer explicitly named on the product, the product cannot legally be marketed in GB under UKCA. Under the current CE acceptance regime, the EESR 2016 importer obligations (Regulation 10) apply when a non-UK manufacturer's product is placed on the GB market: the UK-based importer must verify conformity, ensure documentation availability, and affix their name and address. OPSS guidance confirms a UK-based contact is expected regardless of whether CE or UKCA marking is used. In practice this is the single most common gap: Chinese factories export to UK distributors who are unaware they are implicitly becoming the UK economic operator and assuming full manufacturer-equivalent liability.Chinese PV inverter manufacturers typically lack a UK authorised representative, a GB-address label entry, and a UK-retained technical file — the three practical pillars of UK economic operator compliance. The UK importer or distributor automatically assumes these obligations upon importing goods; if they are unaware of this, they bear full enforcement risk. Appointing a professional UK AR service is the recommended first corrective step for any China-origin supplier targeting the GB market. UK Government (Department for Business and Trade)2026-06-11 · unverified
Radio Equipment Regulations 2017 — Applicability to Inverters with Wireless Modules China has no equivalent to the RER 2017 as a unified domestic radio-equipment conformity regime. For domestic sale, PV inverters with wireless modules require SRRC type approval (型号核准), administered by the State Radio Regulatory Commission under MIIT, which covers spectrum parameters. Separately, CCC (China Compulsory Certification) may apply for safety and EMC categories. SRRC type approval is a domestic Chinese authorisation; it is not recognised by, and carries no evidential weight in, the UK UKCA conformity-assessment process. A CMIIT ID on the product does not constitute or substitute for UK RER 2017 compliance.SRRC 型号核准 (Radio Type Approval) — administered under MIIT 无线电设备型号核准管理规定
CCC (China Compulsory Certification) — GB/T 17626 series (EMC), GB 4943 series (safety)		 The Radio Equipment Regulations 2017 (SI 2017/1206) apply to any grid-tied PV inverter that incorporates a radio module — WiFi, Bluetooth, Zigbee, cellular, or any other intentional radio transmitter. Such a product is classified as radio equipment and must satisfy the Regulations' essential requirements: health and safety, electromagnetic compatibility, and effective and efficient use of radio spectrum. For Great Britain, UKCA and CE are currently both accepted conformity-marking routes under the UK continued-recognition policy; if UKCA is used, the manufacturer holds a UK Declaration of Conformity citing SI 2017/1206, while if CE is used, a valid EU RED conformity route may be relied on. RER 2017 runs independently of, and in addition to, EESR 2016 and EMCR 2016. Note: SI 2017/1206 remains in force as amended; check legislation.gov.uk for current operative text before compiling a Technical File.The Radio Equipment Regulations 2017 (SI 2017/1206) — legislation.gov.uk
The Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101) — separate parallel obligation
The Electromagnetic Compatibility Regulations 2016 (SI 2016/1091) — separate parallel obligation		 Chinese factory Technical Files for PV inverters typically document SRRC type approval and CCC (EMC/safety) for the domestic market, but often lack UK/GB or EU radio-equipment conformity documentation: radio test reports against applicable UK designated or EU harmonised standards, RF exposure assessment, and the appropriate UKCA or CE Declaration of Conformity. SRRC approval is a separate domestic Chinese authorisation and is not accepted as equivalent to RER 2017 or EU RED conformity. The named BS EN/ETSI standards are voluntary presumption-of-conformity routes, not mandatory legal obligations.Conditional on wireless presence. If the inverter ships with an intentional radio transmitter, the Radio Equipment Regulations 2017 applies independently of EESR and EMCR. SRRC type approval does not substitute for UK/EU radio-equipment conformity. GB currently accepts either UKCA or CE; the legal obligation is conformity with the applicable regulations, while BS EN/ETSI standards are voluntary evidence routes. This is informational only — verify current SI 2017/1206 text and designated-standard lists before relying on this summary. legislation.gov.uk — The Radio Equipment Regulations 2017 (SI 2017/1206)2026-06-11 · unverified
UK Designated Radio Standards — BS EN 300 328 and Equivalent (Spectrum & RF EMC) China's SRRC type approval uses MIIT technical specifications rather than ETSI-derived standards. For 2.4 GHz equipment, MIIT updated its technical requirements, replacing earlier documents (such as MIIT [2002] No. 353); the testing methodology and RF power limits differ from BS EN 300 328. RF human exposure in China is assessed against GB 8702-2014 (aligned with ICNIRP), which covers similar limit values to BS EN 62311 but follows different assessment procedures and documentation formats. Radio-specific EMC (equivalent to BS EN 301 489) does not have a direct GB counterpart — general conducted/radiated EMC is handled under GB/T 17626 series (IEC 61000-4-x aligned) within the CCC scheme. Test reports from MIIT-authorised Chinese laboratories are not accepted as evidence of conformity to BS EN standards under the UK RER 2017. The exact current MIIT specification numbers should be verified directly with the State Radio Regulatory Commission (SRRC/MIIT) as these are subject to ongoing revision.MIIT 无线电设备型号核准管理规定 — SRRC type approval technical specifications (2023 update)
GB 8702-2014 — Limits of exposure to electromagnetic fields (1 Hz–300 GHz)
GB/T 17626 series — EMC testing (IEC 61000-4-x aligned, within CCC scheme)		 Under the Radio Equipment Regulations 2017 (SI 2017/1206), compliance with UK designated standards published by BSI and listed on gov.uk can confer a presumption of conformity with the essential requirements. These standards are voluntary routes; the mandatory obligation is conformity with the Regulations. For WiFi/Bluetooth/Zigbee monitoring modules typical in grid-tied PV inverters, relevant standards may include BS EN 300 328, BS EN 301 893, BS EN 300 220 series, BS EN 301 489-1/-17, and BS EN 62311 / BS EN IEC 62311 depending on the radio technology and frequency band. The UK designated standards list may diverge from EU OJEU harmonised standard versions over time. Always verify exact listed version numbers at gov.uk/guidance/designated-standards before filing a Technical File.BS EN 300 328 — Wideband transmission systems; 2.4 GHz ISM band (WiFi, BT, Zigbee)
BS EN 301 893 — 5 GHz RLAN (if applicable)
BS EN 300 220 series — Short Range Devices, 25 MHz–1 GHz
BS EN 301 489-1 — EMC for radio equipment, common requirements
BS EN 301 489-17 — EMC specific to broadband data and 5 GHz RLAN
BS EN 62311 / BS EN IEC 62311 — RF human exposure assessment
The Radio Equipment Regulations 2017 (SI 2017/1206) — essential requirements Reg. 6		 Three gaps apply specifically to the UK route: (1) standard divergence post-Brexit — the UK designated standards list may differ from EU OJEU harmonised standard versions; (2) RF documentation absent from Chinese files — radio test reports, radio EMC reports, and RF exposure assessments are routinely absent from Chinese factory Technical Files; (3) marking/documentation route — GB currently accepts UKCA or CE, but the chosen route must be supported by the appropriate DoC and technical evidence. SRRC reports cannot substitute for UK/EU radio conformity evidence. The named BS EN standards are voluntary presumption-of-conformity routes.Conditional on wireless technology used. If a wireless module is present, the UK Technical File should address the applicable radio, radio EMC, and RF exposure evidence. The mandatory obligation is conformity with RER 2017; BS EN standards are voluntary presumption-of-conformity routes. SRRC test data and EU ETSI-cited reports do not automatically satisfy UK requirements. GB currently accepts either UKCA or CE where the chosen route is valid. This is informational only — verify current UK designated standard versions at gov.uk before relying on this summary. GOV.UK / Department for Business and Trade — designated standards for radio equipment2026-06-11 · unverified
Electrical Safety — Scope & Essential Safety Objectives under UK Electrical Equipment (Safety) Regulations 2016 China has no single safety directive equivalent to the UK Regulations. Safety requirements for PV grid-connected inverters are addressed through GB/T 37408-2019 (recommended/voluntary national standard covering safety, electrical performance, and EMC). Chinese manufacturers exporting globally commonly hold CB Scheme certificates under IEC 62109-1/-2 via a National Certification Body (NCB), which can assist in demonstrating conformity to UK designated standards but does not automatically satisfy the full UK regulatory framework (Declaration of Conformity, technical documentation, and UK market obligations still required). Note: IEC 62109-1 Edition 2 was at FDIS stage as of mid-2026 (prEN IEC 62109-1:2025; BSI project 2024-00112 still in progress) and had not been published as a finalised IEC standard. Alignment of GB/T 37408-2019 with the forthcoming Edition 2 has not been confirmed and is unlikely before IEC publication.GB/T 37408-2019 — Technical requirements for photovoltaic grid-connected inverters (recommended national standard)
IEC 62109-1 / IEC 62109-2 via CB Scheme (IECEE) — international safety certificates held by major CN inverter manufacturers		 The Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101) apply to electrical equipment designed for use between 50–1,000 V AC or 75–1,500 V DC. Grid-tied PV inverters fall within scope. Equipment must be designed and manufactured so as not to endanger persons, domestic animals, or property when properly installed and maintained (Schedule 1, essential safety requirements, mirroring LVD Annex I). Manufacturers must prepare a Declaration of Conformity, retain technical documentation for 10 years, and affix a conformity mark (UKCA or CE — see row ukpv-safety-002) before placing equipment on the Great Britain market. Conformity assessment is manufacturer self-declaration; no third-party approved body is required for electrical safety under these regulations.Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101)
BS EN IEC 62109-1:2010 — Safety of power converters for use in PV power systems: General requirements (UK designated standard, provides presumption of conformity)
BS EN IEC 62109-2:2011 — Safety of power converters for use in PV power systems: Particular requirements for inverters (UK designated standard, provides presumption of conformity)		 Gap is procedural and market-specific rather than purely technical. CN manufacturers holding IEC 62109-1/-2 CB certificates and GB/T 37408 conformity have strong technical alignment with UK designated standards. However, GB-specific obligations remain: (1) the chosen CE or UKCA route must be supported by the appropriate Declaration of Conformity and technical documentation; (2) technical documentation must be retained for 10 years and available to UK market surveillance authorities; (3) a UK-based authorised representative or importer must be identifiable where required. BS EN IEC 62109-1/-2 are voluntary designated standards giving presumption of conformity, not mandatory legal obligations.Informational only. CN-manufactured grid-tied PV inverters with IEC 62109-1/-2 CB certificates are well-positioned technically for GB market compliance under SI 2016/1101, but the mandatory obligation is the Regulation itself, not the named standards. Key remaining steps are administrative: maintain conformity evidence, use a valid CE or UKCA route, retain technical documentation, and identify a UK-based authorised representative or importer where required. This is not legal advice. UK Office for Product Safety and Standards (OPSS) / GOV.UK2026-06-11 · unverified
Conformity Marking — UKCA vs CE: Current Accepted Routes for Great Britain and Northern Ireland Chinese manufacturers exporting to the EU already hold CE marking for PV inverters under EU LVD (Directive 2014/35/EU) and typically use harmonised standards EN IEC 62109-1/-2. This CE marking — obtained for the EU market — is currently accepted in Great Britain under the continued-recognition policy, provided the underlying conformity assessment (technical file, DoC) is valid and the product has not been materially changed. A separate UKCA conformity assessment is not required as long as CE acceptance remains in force. CN manufacturers do not use UKCA marking domestically; it is a GB export-market obligation only.CE marking under Directive 2014/35/EU (Low Voltage Directive) — EU export route
EN IEC 62109-1 / EN IEC 62109-2 — EU harmonised standards used for CE self-declaration		 As of October 2024 (The Product Safety and Metrology etc. (Amendment) Regulations 2024, SI 2024/696, in force 1 October 2024), CE marking is permanently accepted in Great Britain (England, Scotland, Wales) alongside UKCA marking — businesses may choose either. UKCA marking is the GB-specific conformity mark; it can be affixed to a label or accompanying document until 31 December 2027, after which it must be on the product or packaging itself. For Northern Ireland, CE marking remains required (NI follows EU product regulations under the Windsor Framework); UKCA is not valid for NI. Confirmed: there are no sector-specific carve-outs for PV inverters. The indefinite CE recognition covers all 21 product regulation categories, expressly including the Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101) and the EMC Regulations 2016 (SI 2016/1091). The only categories excluded from the continued CE recognition are medical devices, construction products, marine equipment, rail products, cableways, transportable pressure equipment, and unmanned aircraft systems — none of which apply to PV inverters.Product Safety and Metrology etc. (Amendment) Regulations 2024 (SI 2024/696)
Product Regulation and Metrology Act 2025
Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101) — underlying sectoral regulation
Windsor Framework (Northern Ireland Protocol) — CE required for NI		 For manufacturers selling into both Great Britain and Northern Ireland: GB accepts CE or UKCA; NI requires CE only. A single CE-marked product therefore covers both markets. Gap for CN exporters: ensure the Declaration of Conformity is also issued in UK-compliant form if selling under UKCA route (references UK designated standards, signed by UK authorised representative). For NI, no gap if CE marking is already held. The 2024 Amendment Regulations are SI 2024/696 (confirmed), in force 1 October 2024. No PV-inverter-specific carve-outs exist: EESR 2016 and EMC 2016 are expressly included in the 21 product regulations covered by indefinite CE recognition. Future risk: if the GB CE-acceptance policy is ever withdrawn, a UKCA path would need to be established — monitor OPSS updates.Informational only. CN-manufactured PV inverters already CE-marked for the EU market can currently be placed on the Great Britain market using the same CE mark, provided the underlying technical file and Declaration of Conformity are valid. Northern Ireland requires CE marking (not UKCA). Recommend appointing a UK-based authorised representative regardless of marking route to satisfy SI 2016/1101 economic operator obligations. This is not legal advice. UK Office for Product Safety and Standards (OPSS) / GOV.UK2026-06-11 · unverified
UK Responsible Person / Authorised Representative — GB Market Obligation for Non-UK Manufacturers China has no direct domestic equivalent to the UK authorised representative obligation. For exports to regulated markets, Chinese manufacturers typically work through a UK importer, distributor, or a specialist compliance/regulatory services firm acting as authorised representative. The CB Scheme certificate and any EU authorised representative appointed for CE purposes are separate and do not fulfil the UK obligation. Many major CN inverter brands (e.g. Sungrow, Huawei, Growatt) maintain UK subsidiaries or appointed UK ARs; smaller or newer exporters may not yet have this in place.No direct CN domestic equivalent — export obligation only
IECEE CB Scheme — international safety certificate (does not substitute for UK AR obligation)		 Under the Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101), a non-UK manufacturer placing equipment on the Great Britain market must either: (a) appoint a UK-based authorised representative (who cannot be located outside the UK) to hold the Declaration of Conformity and technical documentation and act as the point of contact for UK market surveillance authorities; or (b) ensure a UK-based importer takes on the statutory importer obligations (verify conformity assessment, ensure technical documentation is available, affix name/address to product or packaging, maintain records for 10 years). The UK responsible person / authorised representative must be based in Great Britain or Northern Ireland — an EU-based authorised representative appointed for CE purposes does not satisfy this requirement.Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101) — regulations 7 (technical documentation), 8 (authorised representative), 10 (importer obligations), 13 (provision of information) This is a structural gap specific to UK market access: every non-UK manufacturer must have a UK-based authorised representative or importer — an EU AR does not suffice. The gap is administrative/commercial, not technical. CN exporters without an existing UK distribution or AR arrangement must establish one before legally placing equipment on the GB market. Failure exposes the importer (if any) to liability under SI 2016/1101. The Product Regulation and Metrology Act 2025 (Royal Assent 21 July 2025) is an enabling Act; as of June 2026 the government had not enacted secondary legislation materially changing the AR definition for electrical equipment under SI 2016/1101. Three consultations covering product safety rules were open with a closing date of 23 June 2026 — monitor OPSS for any implementing instruments.Informational only. The UK-based authorised representative or importer obligation is a hard legal requirement under SI 2016/1101 for CN manufacturers without a UK legal presence. It is not satisfied by an EU AR, a CB certificate, or CE marking alone. CN exporters should verify whether their UK distribution partner already fulfils the statutory importer role and, if not, formally appoint a UK AR before shipment. This is not legal advice. UK Office for Product Safety and Standards (OPSS) / GOV.UK2026-06-11 · unverified

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