CROSS-STANDARD public interest · Solar PV inverter
China-to-Lithuania 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 Lithuania (LST / VERT / Litgrid) expectations: LST-adopted standards routes, VERT and Litgrid grid-connection processes, CE-marking-aligned requirements, IEC 62109, IEC 62116, IEC 61727, IEC 62920 and IEC 61000 evidence, with 230/400 V 50 Hz grid settings and Klaipėda as the main port — versus China GB/T 37408, NB/T 32004, and GB/T 19964 baselines. Note: Lithuania synchronised to the Continental European grid in February 2025.
Dataset 2026-06-11
Last verified 2026-06-15
3 rows
GAP MATRIX
Compliance Gap Matrix
| Compliance item | Common China baseline | Lithuania (LST / VERT / Litgrid) | Gap / action | Source + verification date |
|---|---|---|---|---|
| EMC — IEC 62920 and IEC 61000 Evidence for Lithuania PV Inverters | Chinese PV inverter EMC evidence commonly relies on GB/T 37408-2021 and related domestic EMC test reports from CNAS-accredited laboratories. These reports can be useful engineering background but are not automatically equivalent to IEC 62920 or the IEC 61000-series evidence requested by a Lithuania project owner, LST conformity route, VERT review, or Litgrid grid-connection process. China test conditions are normally aligned with the China 220/380 V, 50 Hz baseline, while Lithuania uses 230/400 V at the same frequency.GB/T 37408-2021 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) CNAS-accredited domestic EMC test reports under China standard scopes |
Lithuania PV inverter EMC expectations should be prepared on an IEC basis because LST is the national standards body and project specifications for grid-connected PV commonly reference IEC-family inverter evidence. The practical EMC package should include IEC 62920 for PV power conversion equipment and applicable IEC 61000-series evidence for emissions, immunity, harmonics, surge, voltage dips, and power quality. For Litgrid/VERT grid-connected projects, harmonic and conducted-emission evidence should be tied to the actual inverter model, rating, and configuration. Lithuania uses a 230/400 V 50 Hz grid (post-February 2025 Continental European synchronisation), so EMC and harmonic results obtained only under China 220/380 V conditions should be reviewed for applicability before submission. Lithuanian-language project documentation is often expected.IEC 62920 — Photovoltaic power generating systems — EMC requirements and test methods for power conversion equipment IEC 61000 series — Electromagnetic compatibility test, immunity, harmonic, surge, voltage-dip, and power-quality standards as applicable to the inverter configuration LST standards adoption and project specification requirements where applicable Litgrid/VERT grid-connection review requirements for power quality and harmonic performance |
Gap: China-only EMC certificates under GB/T 37408 do not automatically satisfy Lithuania IEC-based project expectations. Exporters should obtain IEC 62920 and applicable IEC 61000-series reports for the specific model or family, confirm whether harmonics and conducted-emission results remain valid at 230/400 V, and provide surge, earthing, shielding, and enclosure documentation suitable for the relevant installation conditions. Where Litgrid, VERT or the project owner specifies harmonic limits or power-quality measurements, test reports should be mapped clause-by-clause to that requirement.[INFORMATIONAL] Treat Lithuanian PV inverter EMC as an IEC evidence package, not a China GB/T certificate transfer. Prepare IEC 62920 and applicable IEC 61000-series reports for the exact inverter model, review harmonic and EMC applicability at Lithuania's 230/400 V 50 Hz grid voltage, and confirm any LST, VERT, Litgrid, or project-owner EMC requirements before shipment. | Lithuanian Standards Board (LST)2026-06-15 · reference |
| Litgrid/VERT Grid-Connection Review — IEC 62116, IEC 61727, and 230/400 V 50 Hz Settings | Chinese PV inverter grid-connection evidence commonly includes GB/T 19964-2024 for PV power station connection, NB/T 32004 for grid-connected inverter technical specifications, GB/T 37408 for PV grid-connected inverter requirements, and domestic anti-islanding test results. These documents are built around China grid conditions and domestic acceptance procedures. China's low-voltage baseline is 220/380 V at 50 Hz, not Lithuania's 230/400 V at 50 Hz. Chinese grid certificates and factory firmware settings do not automatically transfer to Litgrid acceptance or VERT project review in Lithuania.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) NB/T 32004-2018 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters) GB/T 37408-2021 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) GB/T 156 — 标准电压 (Standard voltages) |
Grid-connected solar PV inverters in Lithuania should be treated as project-level grid-connection equipment subject to Litgrid (TSO) technical review and VERT (National Energy Regulatory Council) energy-sector oversight. The practical IEC evidence package normally includes IEC 62116 anti-islanding and IEC 61727 utility-interface compliance, with firmware protection thresholds, reconnection delay, voltage windows, and frequency windows validated for Lithuania's 230/400 V 50 Hz low-voltage grid. Lithuania is a Baltic state with a growing renewable energy sector; following synchronisation to the Continental European grid in February 2025, Litgrid grid-code parameters may have been updated and must be verified directly. Commissioning files should document the inverter's firmware protection thresholds and reconnection timing against the current Litgrid post-synchronisation technical requirements.IEC 62116 — Utility-interconnected photovoltaic inverters — Test procedure of islanding prevention measures IEC 61727 — Photovoltaic systems — Characteristics of the utility interface Litgrid/VERT project grid-connection and commissioning requirements for the relevant installation VERT electricity-sector approval or oversight requirements where applicable Lithuania low-voltage grid context — 230 V single-phase / 400 V three-phase, 50 Hz |
Gap: China GB/T and NB/T grid-connection evidence is not a substitute for Lithuanian Litgrid/VERT project acceptance. Exporters should prepare IEC 62116 anti-islanding evidence, IEC 61727 utility-interface evidence, a Lithuania-specific settings file, and commissioning records for 230/400 V at 50 Hz. Do not describe Lithuania voltage as matching China: only the 50 Hz frequency matches, while nominal voltage differs from China's 220/380 V. After Lithuania's February 2025 synchronisation to the Continental European grid, verify Litgrid's current post-synchronisation protection settings and reconnection timing directly.[INFORMATIONAL] Chinese GB/T grid-connection documents do not automatically satisfy Lithuanian Litgrid/VERT grid-connection review. Prepare IEC 62116 and IEC 61727 evidence, re-parameterise inverter firmware for Lithuania's 230/400 V at 50 Hz grid, and verify post-February 2025 Continental European synchronisation requirements directly with Litgrid before shipment or commissioning. | Litgrid (Lithuanian Transmission System Operator)2026-06-15 · reference |
| IEC 62109-1 / IEC 62109-2 Safety Evidence for Lithuania PV Inverters | China safety documentation for PV grid-connected inverters commonly uses GB/T 37408-2021, NB/T 32004, domestic CQC or CGC voluntary certification, and CNAS-accredited laboratory reports. These documents are useful for supplier qualification but are not automatically accepted as IEC 62109-1/-2 evidence for Lithuania projects. Chinese safety reports may also be based on China-rated configurations, labels, manuals, surge protection, and 220/380 V assumptions, while Lithuanian project files must reflect 230/400 V, 50 Hz installation conditions.GB/T 37408-2021 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) NB/T 32004-2018 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters) CQC / CGC voluntary certification programmes for China domestic PV inverter safety and performance |
For Lithuania solar PV projects, inverter safety documentation should be prepared around IEC 62109-1 and IEC 62109-2 type-test evidence for the exact inverter model or family. LST is the national standards body, VERT oversees the energy sector, and Litgrid controls the practical transmission grid-connection interface, so project submissions should include accredited IEC safety reports, installation manuals, ratings, nameplate data, protection-device coordination, earthing instructions, and environmental limits. Lithuania has a temperate continental climate and project files should address enclosure ingress protection, corrosion resistance for outdoor installations, and thermal derating for the relevant site conditions. Lithuanian-language manuals and documentation are commonly expected.IEC 62109-1 — Safety of power converters for use in photovoltaic power systems — Part 1: General requirements IEC 62109-2 — Safety of power converters for use in photovoltaic power systems — Part 2: Particular requirements for inverters LST standards adoption and conformity expectations where applicable VERT and Litgrid project documentation requirements for grid-connected solar PV equipment Project environmental requirements for ingress protection, corrosion resistance, and thermal derating |
Gap: A China-only GB/T 37408 or NB/T 32004 safety file does not automatically satisfy Lithuanian IEC safety expectations. Exporters should provide IEC 62109-1/-2 type-test reports for the supplied model or model family, confirm that labels and manuals match the Lithuania configuration, document protection coordination and earthing, and add environmental evidence for ingress protection, humidity, ventilation, and thermal derating for Lithuania. Any changes to enclosure, terminals, firmware settings, surge protection, or nameplate ratings for Lithuania can require updated safety documentation. Lithuanian-language manuals and documentation are commonly expected.[INFORMATIONAL] Do not rely on China GB/T or NB/T inverter safety files alone for Lithuania PV projects. Prepare IEC 62109-1/-2 type-test evidence for the exact model, align labels and manuals to Lithuania's 230/400 V 50 Hz configuration, and document ingress-protection, corrosion, and thermal-derating controls. Confirm current LST, VERT, Litgrid, and project-owner safety requirements before shipment. | Lithuanian Standards Board (LST)2026-06-15 · reference |
E-E-A-T
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Editorial controlsRows must include publisher, official URL, access date, verification flag, and last_verified before human_reviewed can be true.
SOURCES
Official-source register.
- Lithuanian Standards Board (LST) · accessed 2026-06-15 · reference · used in 2 rows
- Litgrid (Lithuanian Transmission System Operator) · accessed 2026-06-15 · reference · used in 1 rows