他们一边朝南的屋顶安装光伏太阳能发电设备。
They have installed a photovoltaic unit on the south-facing side of the roof.
要有效的利用太阳能就应该因地制宜地选择合适的太阳能发电设备。
It should be selected in accordance with the appropriate solar energy equipment in order to use solar energy effectively.
同时电力设计方面也采用了可循环清洁能源：90%来自水力发电、10%来自工厂自备的太阳能发电设备。
And the electricity it USES is from renewable sources: 90% from a hydro-power plant and 10% from on-site solar panels.
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