CROSS-STANDARD public interest · Solar PV inverter

China-to-Qatar Solar PV 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 solar PV inverter documentation against Qatar QGOSM conformity requirements, Kahramaa grid-connection and Be Solar distributed solar specifications, IEC 62109-1/-2 safety evidence, IEC 62116 anti-islanding, IEC 62920 EMC, 50 Hz 240/415 V grid settings, and GCC GSO standards context — versus China GB/T 37408 and GB/T 19964 baselines.

Dataset 2026-06-11 Last verified 2026-06-14 4 rows

GAP MATRIX

Compliance Gap Matrix

Gap matrix
Compliance item Common China baseline Qatar (QGOSM / Kahramaa) Gap / action Source + verification date
EMC — IEC 62920 and IEC 61000-3-2 for PV Inverters — Kahramaa Specification Chinese PV inverter EMC is assessed under GB/T 37408-2019 (Technical Requirements for Photovoltaic Grid-Connected Inverters), which includes EMC test requirements aligned with China's domestic framework. GB/T 37408 EMC testing is conducted at CNAS-accredited Chinese laboratories. While IEC 62920 draws on IEC 61000-series test methods used in Chinese domestic standards, the GB/T 37408 EMC test scope and referenced limits are not harmonised with IEC 62920 and IEC 61000-3-2 as applied by Kahramaa. Chinese EMC certificates based solely on GB/T 37408 are not accepted as IEC 62920 or IEC 61000-3-2 compliance evidence for Kahramaa project submissions.GB/T 37408-2019 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) — includes EMC test requirements Kahramaa's Technical Specifications for the Connection of Solar PV Systems to the Network (EP-EPP-P7-S1) explicitly references IEC 62920 (Photovoltaic power generating systems — EMC requirements and test methods for power conversion equipment) and IEC 61000-3-2 (Electromagnetic compatibility — Limits for harmonic current emissions) as required technical evidence for PV inverters. IEC 62920 is the dedicated EMC standard for PV power conversion equipment; IEC 61000-3-2 sets harmonic current emission limits for equipment with input current up to and including 16 A per phase. No standalone QGOSM EMC Technical Regulation specifically for solar inverters has been identified; EMC requirements for Qatar PV inverters are embedded in the Kahramaa grid-connection specification.IEC 62920 — Photovoltaic power generating systems — EMC requirements and test methods for power conversion equipment (explicitly cited in Kahramaa EP-EPP-P7-S1)
IEC 61000-3-2 — Electromagnetic compatibility — Limits for harmonic current emissions (equipment with input current up to 16 A per phase) (explicitly cited in Kahramaa EP-EPP-P7-S1)		 Chinese GB/T 37408 EMC testing does not satisfy Kahramaa's IEC 62920 and IEC 61000-3-2 requirements. Exporters should obtain: (a) IEC 62920 EMC type-test report from an ILAC-accredited laboratory covering the specific inverter model; (b) IEC 61000-3-2 harmonic current emission test report for the model. These reports should be specific to the power rating and configuration of the inverter being supplied to Qatar. Where harmonics test results were obtained under Chinese grid conditions (220/380 V), consider whether retesting under Qatar grid conditions (240/415 V, 50 Hz) is required by the Kahramaa project engineer.[INFORMATIONAL] Chinese GB/T 37408 EMC certificates do not satisfy Kahramaa's IEC 62920 and IEC 61000-3-2 requirements. Obtain IEC 62920 and IEC 61000-3-2 type-test reports from an ILAC-accredited laboratory for the specific inverter model before project submission to Kahramaa. Confirm whether Qatar grid voltage conditions (240/415 V) require retesting compared to test results obtained under 220/380 V Chinese grid conditions. Kahramaa (Qatar General Electricity and Water Corporation)2026-06-14 · unverified
Kahramaa Grid-Connection Standards — Anti-Islanding (IEC 62116), LVRT (IEC TS 62910), and 50 Hz / 240 V / 415 V Settings Chinese grid-connection evidence commonly includes GB/T 19964-2024 (Technical Requirements for Connecting Photovoltaic Power Station to Power System, applicable to utility-scale PV via 10 kV and above), NB/T 32004 (inverter technical specifications), and domestic anti-islanding test results. These Chinese grid-connection documents are based on Chinese grid conditions and are not accepted as Kahramaa grid-connection evidence. The key parameter difference is voltage: China's grid standard is 220/380 V at 50 Hz under GB/T 156, whereas Qatar Kahramaa specifies 240/415 V at 50 Hz. Firmware protection thresholds validated for Chinese grid conditions must be re-parameterised and retested for Qatar Kahramaa grid conditions.GB/T 19964-2024 — 光伏发电站接入电力系统技术规定 (Technical Requirements for Connecting Photovoltaic Power Station to Power System)
GB/T 156 — 标准电压 (Standard voltages)
NB/T 32004-2018 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters)		 Kahramaa's Technical Specifications for the Connection of Solar PV Systems to the Network (EP-EPP-P7-S1) sets out the grid-connection technical requirements for PV inverters in Qatar. Key requirements include: (1) IEC 62116 anti-islanding test — inverters must detect loss of mains and disconnect within 2 seconds maximum; (2) IEC TS 62910 Low Voltage Ride-Through (LVRT) test procedure compliance; (3) IEC 61000-3-2 harmonic current emission limits; (4) EN 50530 overall efficiency test evidence; (5) EN 50524 data sheet and nameplate compliance. Qatar's grid operates at 50 Hz ±0.1 Hz, single-phase 240 V ±6%, three-phase 415 V ±6% (Kahramaa Wiring Code 2018). Inverter firmware and protection relay settings must be validated against these Qatar grid parameters, not the 50 Hz 220/380 V settings used in China under GB/T 156.IEC 62116 — Utility-interconnected photovoltaic inverters — Test procedure of islanding prevention measures (explicitly cited in Kahramaa EP-EPP-P7-S1)
IEC TS 62910 — Utility-interconnected photovoltaic inverters — Test procedure for low-voltage ride-through measurements (explicitly cited in Kahramaa EP-EPP-P7-S1)
IEC 61000-3-2 — Electromagnetic compatibility — Limits for harmonic current emissions (explicitly cited in Kahramaa EP-EPP-P7-S1)
EN 50530 — Overall efficiency of grid-connected photovoltaic inverters (explicitly cited in Kahramaa EP-EPP-P7-S1)
EN 50524 — Data sheet and nameplate for photovoltaic inverters (explicitly cited in Kahramaa EP-EPP-P7-S1)
Kahramaa Wiring Code 2018 — Qatar grid parameters: 50 Hz, 240 V single-phase, 415 V three-phase		 Gap: Chinese GB/T grid-connection documents do not satisfy Kahramaa EP-EPP-P7-S1 requirements. Exporters must prepare: (a) IEC 62116 anti-islanding test report from an ILAC-accredited laboratory; (b) IEC TS 62910 LVRT test evidence; (c) IEC 61000-3-2 harmonic emission compliance evidence; (d) EN 50530 efficiency test data; (e) EN 50524-compliant data sheet. Additionally, firmware protection thresholds and reconnection delays must be validated for Qatar's 240/415 V, 50 Hz grid — not the 220/380 V Chinese grid parameters. Where inverter firmware settings differ from the factory default for China, re-parameterisation should be documented and, if the change is material, re-tested under the applicable IEC standard.[INFORMATIONAL] Kahramaa's grid-connection specification requires IEC 62116, IEC TS 62910, IEC 61000-3-2, EN 50530, and EN 50524 evidence — none of which is covered by Chinese GB/T grid certificates. Re-parameterise inverter firmware for Qatar's 240/415 V at 50 Hz grid before testing and document the configuration. Verify the current edition of Kahramaa EP-EPP-P7-S1 and any supplementary connection conditions directly with Kahramaa before finalising the equipment compliance package. Kahramaa (Qatar General Electricity and Water Corporation)2026-06-14 · unverified
Kahramaa Be Solar Distributed Programme — Equipment Approval and Contractor Requirements China does not have a direct equivalent programme. Distributed solar connection in China is governed by National Energy Administration (NEA) distributed PV policies and grid operator (State Grid, Southern Power Grid) connection rules, which reference China's domestic standards (NB/T 32004, GB/T 37408, GB/T 19964-2024). These Chinese distributed connection rules are not applicable in Qatar and do not give any presumption of compliance with Kahramaa Be Solar equipment requirements.NB/T 32004-2018 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters)
GB/T 37408-2019 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters)
GB/T 19964-2024 — 光伏发电站接入电力系统技术规定 (Technical Requirements for Connecting Photovoltaic Power Station to Power System)		 Kahramaa's Be Solar programme (launched August 2024) governs distributed grid-connected solar PV installations from 1 kW to 25 MW on Kahramaa's distribution network in Qatar. The programme requires: (a) use of a Kahramaa-approved contractor; (b) a net-billing arrangement requiring a bidirectional smart meter installed by Kahramaa; (c) inverter and equipment compliance with Kahramaa technical specifications, including EP-EPP-P7-S1; (d) Kahramaa application, technical review, and final commissioning inspection before grid connection. Chinese PV inverters supplied to Be Solar projects must comply with Kahramaa's inverter technical specifications as a condition of contractor submission and project approval.Kahramaa Be Solar Programme — distributed solar grid-connection rules and application process
Kahramaa Technical Specifications for the Connection of Solar PV Systems to Network — EP-EPP-P7-S1 (applicable to Be Solar project equipment)		 Gap: Chinese inverters for Qatar Be Solar projects must be supplied and installed by a Kahramaa-approved contractor and must pass Kahramaa technical review as part of the Be Solar application process. Chinese distributed solar connection approvals do not transfer to Qatar Be Solar requirements. Confirm inverter model eligibility, IEC safety and grid-connection test evidence, and contractor registration status with Kahramaa before committing product to Be Solar projects.[INFORMATIONAL] Kahramaa Be Solar is a separate project approval gate from any Chinese domestic distributed solar approval. Confirm inverter model eligibility and IEC compliance evidence with the Kahramaa-approved contractor and Kahramaa project review team before project submission. The Be Solar programme was launched in August 2024 — verify current application requirements and equipment eligibility criteria directly at km.qa. Kahramaa (Qatar General Electricity and Water Corporation)2026-06-14 · unverified
IEC 62109-1 / IEC 62109-2 Safety Evidence — Kahramaa Solar PV Grid-Connection Specification China's primary voluntary standard for PV grid-connected inverter safety is GB/T 37408-2019 (Technical Requirements for Photovoltaic Grid-Connected Inverters), which covers classification, environmental conditions, safety, electrical performance, EMC, and markings. GB/T 37408 is a China domestic standard assessed by CNAS-accredited Chinese laboratories. It shares conceptual safety intent with IEC 62109-1/-2 but is not harmonised with IEC 62109 and is not accepted by Kahramaa or Qatar project owners as equivalent to IEC 62109 type-test evidence.GB/T 37408-2019 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) Kahramaa's Technical Specifications for the Connection of Solar PV Systems to the Network (document EP-EPP-P7-S1) explicitly references IEC 62109-2 (Safety of power converters for use in photovoltaic power systems — Part 2: Particular requirements for inverters) as a required standard for solar PV inverters connected to the Qatar grid. IEC 62109-1 (Part 1: General requirements) is the parent standard and is implicitly applicable because Part 2 requirements cannot be assessed independently. Third-party type-test evidence from an ILAC-accredited laboratory is expected by project owners and procurement specifications for utility-scale and Be Solar distributed projects.IEC 62109-2 — Safety of power converters for use in photovoltaic power systems — Part 2: Particular requirements for inverters (explicitly cited in Kahramaa EP-EPP-P7-S1)
IEC 62109-1 — Safety of power converters for use in photovoltaic power systems — Part 1: General requirements (implicitly applicable as parent standard)
Kahramaa Technical Specifications for the Connection of Solar PV Systems to Network — EP-EPP-P7-S1		 Chinese GB/T 37408 safety certification does not satisfy Kahramaa's IEC 62109-2 type-test requirement for Qatar grid-connection. Exporters must obtain IEC 62109-1/-2 type-test certificates from an ILAC-accredited laboratory covering the specific inverter model or family being supplied to the Qatar project. Existing Chinese safety certificates based solely on GB/T 37408 should be supplemented with IEC 62109-1/-2 test reports before submitting equipment documentation for Kahramaa project review or Be Solar equipment approval.[INFORMATIONAL] A solar PV inverter holding only Chinese GB/T 37408 certification cannot satisfy Kahramaa's IEC 62109-2 grid-connection requirement. Plan for IEC 62109-1/-2 type testing by an ILAC-accredited laboratory before submitting equipment documentation for Qatar project review. Verify current Kahramaa specification version and model-family coverage requirements directly with Kahramaa or the appointed project engineer before committing to a test programme. Kahramaa (Qatar General Electricity and Water Corporation)2026-06-14 · unverified

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