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【多选题】
家用太阳能发电的优点有哪些?
A.
可以建设个人的专用电网，显著降低电费支出
B.
可以把自家用不完的太阳能电输送到电网，卖给电力公司，运营个人发电厂
C.
可原地发电、原地使用，节约输配电网的投资，并减少了输配电损耗
D.
通常空调、制冷等设备的使用，形成用电高峰，而这是太阳能发电阵列发电最多的时期，家用发电系统除保证自家内部用电外，还可以向电网供电，从而舒缓高峰电力需求，解决电网峰谷供需矛盾；
E.
初期建设成本较高。
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