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SJ/T 12029.2.1-2025Residential Grid-Connected Photovoltaic Power Generation Systems - Part 2-1: General Design Requirements (English PDF)

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

September 9, 2025

Implementation date

March 1, 2026

Scope

SJ/T 12029.2.1-2025 (Residential Grid-Connected Photovoltaic Power Generation Systems - Part 2-1: General Design Requirements) is available as an English-translated PDF.

SJ/T 12029.2.1-2025 — This standard specifies design guidelines for residential grid-connected PV power generation systems, covering general design principles, meteorological data collection, selection of major equipment and materials, as well as requirements for PV array design, structural design, electrical safety design, system grid-connection design, and design documentation.

It applies to systems installed on fixed residential buildings, structures, and associated premises that connect to the user-side grid or public grid at voltage levels of 220 V or 380 V. The single-point connection capacity should generally not exceed 8 kW for the 220 V level or 400 kW for the 380 V level; systems using other voltage levels may also refer to this standard.

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Document preview — SJ/T 12029.2.1-2025

National Standard of the People's Republic of China

ICS: 27.160
Classification: F 12

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard specifies design guidelines for residential grid-connected PV power generation systems, covering general design principles, meteorological data collection, selection of major equipment and materials, as well as requirements for PV array design, structural design, electrical safety design, system grid-connection design, and design documentation. It applies to systems installed on fixed residential buildings, structures, and associated premises that connect to the user-side grid or public grid at voltage levels of 220 V or 380 V. The single-point connection capacity should generally not exceed 8 kW for the 220 V level or 400 kW for the 380 V level; systems using other voltage levels may also refer to this standard. This standard does not apply to concentrating PV systems, though other PV systems may use it as a reference.

Document data

International classification (ICS): 27.160.

Chinese classification (CCS): F12.

Estimated length of the Chinese original: 10,196 words.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.

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