一、离网光伏系统组成

光伏组件、离网逆变器（包含光伏充电器/逆变器）、储能电池（铅酸/胶体/铅炭/三元 锂/磷酸铁锂等类型）、光伏支架、线缆，以及配电箱等。

二、离网系统设计时需要提供哪些参数？

1.负载用电设备的功率

2.负载的工作时间（ 可以参考电费单或者总瓦数）

3.是否需要考虑阴雨天天数（持续供电)

4.安装地光照条件以及安装的倾角

三、光伏储能离网系统的原理

1.太阳能电池板将太阳光转换为直流电

2.逆变器将直流电转换为交流电，供家用电器在白天使用

3.光伏板产生的剩余电力用于给电池充电

4.电池中存储的能量在夜间得到利用

5.当无法使用公共设施并且电池电量不足时，发电机会为电池充电和负载供电

I. Composition of off-grid photovoltaic system

Photovoltaic modules, off-grid inverters (including photovoltaic chargers/inverters), energy storage batteries (lead acid/colloid/lead carbon/ternary lithium/lithium iron phosphate, etc.), photovoltaic brackets, cables, and distribution boxes, etc.

The picture

2. What parameters should be provided in the design of off-grid system?

1. Load power of electrical equipment

2. Working time of the load (refer to the electricity bill or total wattage)

3. Whether to consider the rainy days (continuous power supply)

4. Lighting condition and Angle of installation

Iii. Principle of photovoltaic energy storage off-grid system

1. Solar panels convert sunlight into direct current

2. Inverter converts direct current into alternating current for household appliances to use during the day

3. The surplus electricity generated by the photovoltaic panels is used to charge the batteries

4. The energy stored in the battery is used at night

5. When public facilities cannot be used and the battery is low, the generator will charge the battery and power the load