验证独立光伏系统的系统设计和性能。性能测试包括检查功能、自主性和在电池处于低充电状态后恢复的能力，从而合理保证系统不会过早失效。测试条件旨在代表设计这些系统的大多数气候区。

Verifies system design and performance of stand-alone photovoltaic systems. The performance test consists of a check of the functionality, the autonomy and ability to recover after periods of low state-of-charge of the battery, and hence gives reasonable assurance that the system will not fail prematurely. The testing conditions are intended to represent the majority of climatic zones for which these systems are designed.