CROSS-STANDARD public interest · Solar PV inverter

China-to-Paraguay 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 Paraguay INTN conformity expectations, ANDE technical connection approval, IEC 62109-1/-2 safety evidence, IEC 62116 anti-islanding, IEC 61727 utility interface requirements, IEC 62920 and IEC 61000 EMC evidence, and 50 Hz 220/380 V grid settings — versus China GB/T 37408, NB/T 32004, 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 Paraguay (INTN / ANDE) Gap / action Source + verification date
EMC — IEC 62920 and IEC 61000-Series Evidence for Paraguay PV Inverters Chinese PV inverter EMC evidence commonly appears inside GB/T 37408-2021 or NB/T 32004 test reports, with CNAS laboratory results and Chinese-language certificates. Those reports may reference IEC 61000-family methods, but they are not automatically equivalent to an IEC 62920 report or to the exact EMC scope requested by a Paraguay project. The exporter should confirm whether the report covers the supplied model, power rating, firmware and filter configuration, test voltage, grid frequency, emissions ports, immunity tests, and harmonic limits relevant to the Paraguay installation.GB/T 37408-2021 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) — includes EMC-related requirements
NB/T 32004 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters) — includes inverter performance and grid-connection requirements		 For Paraguay PV inverter projects, EMC evidence should be prepared in IEC terms acceptable to the local project reviewer, INTN conformity route, and ANDE connection review. IEC 62920 is the dedicated EMC standard for photovoltaic power conversion equipment, while the IEC 61000 series supplies test methods and limits for emissions, immunity, harmonics, and flicker where applicable. Paraguay-specific inverter EMC regulations are not clearly published as a separate solar-inverter approval regime, so exporters should expect project documents to request IEC 62920, IEC 61000-3-2, IEC 61000-3-3, IEC 61000-6-2, or IEC 61000-6-4 evidence depending on power rating, installation environment, and ANDE or owner requirements.IEC 62920 — Photovoltaic power generating systems — EMC requirements and test methods for power conversion equipment
IEC 61000-3-2 — Electromagnetic compatibility — Limits for harmonic current emissions where applicable
IEC 61000-3-3 — Electromagnetic compatibility — Voltage changes, voltage fluctuations and flicker where applicable
IEC 61000-6-2 / IEC 61000-6-4 — Generic industrial immunity and emission standards where specified by the project		 Gap: GB/T or NB/T EMC test evidence should be mapped to IEC 62920 and the relevant IEC 61000 clauses before Paraguay submission. Where the China report does not explicitly list IEC 62920, does not cover the supplied model variant, or was tested under materially different voltage/configuration conditions, obtain supplementary IEC EMC testing from an accredited laboratory. The EMC package should be aligned with the ANDE connection dossier and any INTN conformity pathway requested by the importer or authority.[INFORMATIONAL] Do not assume a Chinese GB/T 37408 or NB/T 32004 EMC report is enough for Paraguay. Prepare an IEC 62920 and IEC 61000 cross-reference, confirm model and configuration coverage, and obtain supplementary accredited IEC EMC testing if the project owner, INTN route, or ANDE reviewer requires it. IEC (International Electrotechnical Commission)2026-06-14 · unverified
ANDE Grid-Connection Gate — Anti-Islanding, Utility Interface, and 50 Hz / 220 V / 380 V Settings Chinese grid-connection evidence commonly includes GB/T 19964-2024, NB/T 32004, GB/T 37408-2021, domestic anti-islanding tests, and grid-code documentation prepared for State Grid or China Southern Power Grid conditions. These documents are based on Chinese grid procedures and do not by themselves prove acceptance by ANDE. Even where the nominal voltage and frequency appear similar, firmware protection thresholds, reconnection timing, voltage/frequency ride-through, reactive-power behaviour, and documentation language should be reviewed against the Paraguayan project connection 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)
NB/T 32004 — 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)		 Paraguay's electricity service is practically centred on ANDE, the state electricity administration responsible for generation, transmission, distribution, and project connection review. For grid-tied PV inverters, the practical market gate is ANDE technical approval for the specific installation and connection point. Evidence commonly expected should be prepared around IEC 62116 anti-islanding, IEC 61727 utility-interface behaviour, applicable IEC 61000 power-quality limits, and firmware settings for Paraguay's low-voltage grid, commonly stated as 220/380 V at 50 Hz. Because Paraguay has no large mature solar-inverter approval list comparable to some larger PV markets, exporters should treat ANDE's project-specific connection conditions as controlling.ANDE technical connection review and project-specific connection conditions for grid-tied generation
IEC 62116 — Utility-interconnected photovoltaic inverters — Test procedure of islanding prevention measures
IEC 61727 — Photovoltaic systems — Characteristics of the utility interface
IEC 61000 series — Electromagnetic compatibility and power-quality limits where specified by ANDE or project owner
Paraguay grid setting context — 50 Hz, commonly 220/380 V low-voltage service		 Gap: Chinese grid certificates are not an ANDE connection approval. Exporters should prepare IEC 62116 and IEC 61727 evidence for the specific inverter model, a firmware settings table for Paraguay's 50 Hz / 220 V / 380 V grid, protection relay and reconnection settings, Spanish technical documentation where required, and a project-level submission path through the local owner, designer, or installer. ANDE may impose project-specific conditions because distributed self-consumption solar is still emerging in Paraguay.[INFORMATIONAL] Treat ANDE technical approval as the controlling Paraguay grid-connection gate. Chinese GB/T or NB/T grid evidence should be supplemented with IEC 62116, IEC 61727, applicable IEC 61000 evidence, firmware settings for Paraguay's 50 Hz / 220 V / 380 V grid, and project-specific documentation requested by ANDE. ANDE (Administración Nacional de Electricidad)2026-06-14 · unverified
Paraguay Solar Context — Hydro-Dominant Grid and Nascent Distributed Self-Consumption China has mature domestic PV deployment, manufacturer certification, and utility interconnection practices. Chinese inverter files often contain CQC or CGC voluntary certificates, CNAS laboratory reports, GB/T 37408-2021 performance and safety evidence, NB/T 32004 technical evidence, and GB/T 19964-2024 grid-integration evidence. That package can be technically useful, but it is not a Paraguay project approval package unless mapped into IEC/NP terminology and accepted by the local project reviewer and ANDE.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 — 光伏并网逆变器技术规范 (Technical Specification 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)		 Paraguay's electricity system is hydro-dominant, with major supply from the Itaipu and Yacyreta binational hydroelectric projects and surplus electricity historically exported to neighbouring countries. This context means solar PV inverter acceptance is less likely to be handled through a long-standing mass-market product approval programme and more likely to be reviewed through ANDE project connection, owner procurement, and local engineering documentation. For Chinese exporters, the key practical question is not only whether the inverter has IEC test reports, but whether the local project team can use those reports to obtain ANDE connection clearance.ANDE project-level connection and technical review for electricity installations connected to its network
Project-owner procurement specifications for PV inverters, commonly referencing IEC 62109, IEC 62116, IEC 61727, and IEC 62920
Local electrical design and installation documentation required by the Paraguayan project owner or utility reviewer		 Gap: a China domestic PV inverter compliance dossier should be converted into a Paraguay project dossier. That means Spanish or bilingual technical summaries, IEC/NP cross-reference tables, model-family coverage explanations, firmware configuration records, and clear identification of the local applicant responsible for ANDE connection review. The absence of a mature mass-market solar approval pathway increases the importance of early ANDE and project-owner confirmation.[INFORMATIONAL] Paraguay's hydro-dominant, ANDE-centred electricity system makes project-level connection review the practical route for grid-tied PV inverters. Convert China domestic evidence into an IEC/NP and ANDE-ready technical dossier before shipment, and confirm the local applicant and connection process early. ANDE (Administración Nacional de Electricidad)2026-06-14 · unverified
IEC 62109-1 / IEC 62109-2 Safety Evidence — INTN Conformity and ANDE Project Review China PV inverter safety evidence often relies on GB/T 37408-2021, NB/T 32004, domestic voluntary certification such as CQC or CGC, CNAS laboratory reports, and Chinese-language nameplate or user-manual review. These materials are useful for product understanding, but GB/T or NB/T evidence should not be presented as a substitute for IEC 62109-1/-2 unless the test report explicitly covers IEC 62109 and the relevant model configuration. The China file should also be checked for Spanish documentation needs and model-family equivalence before Paraguay submission.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 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters)
CQC / CGC voluntary certification and CNAS laboratory evidence commonly used in China domestic inverter procurement		 INTN is Paraguay's national technology, standardization, and metrology body and is the key reference point for Paraguayan standards and conformity activity. For solar PV inverters, the safety evidence package should be prepared around NP/IEC or direct IEC 62109-1 and IEC 62109-2 type-test evidence, because IEC 62109 is the internationally recognised safety framework for power converters used in photovoltaic systems. ANDE project reviewers and owners may request safety certificates or reports covering the exact inverter model or model family before accepting equipment for a grid-tied installation.INTN Paraguayan standards and conformity activity, including adoption or use of international standards where applicable
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
Project-owner and ANDE documentation requirements for electrical equipment connected to the Paraguay grid		 Gap: Paraguay-facing safety evidence should be built around IEC 62109-1/-2 or NP/IEC adoption, not only China domestic GB/T or NB/T reports. Exporters should obtain or identify IEC 62109 certificates and type-test reports for the exact inverter model, verify model-family coverage, provide Spanish or bilingual safety instructions where requested, and align the safety file with the ANDE project submission and any INTN conformity route requested by the importer.[INFORMATIONAL] A China domestic inverter safety file should be supplemented with IEC 62109-1/-2 or NP/IEC evidence before Paraguay submission. Confirm INTN conformity expectations, ANDE project requirements, Spanish documentation needs, and model-family coverage before shipment or installation. INTN (Instituto Nacional de Tecnología, Normalización y Metrología)2026-06-14 · unverified

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