我安装离网光伏系统不少了，客户使用没出什么大问题，应该安全。
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没有任何危害，目前初建投入可能会成本比较高，回报时间比较长，多余部分可以通过并网
反送卖给国家。
太阳能光伏发电的优缺点 与常用的火力发电系统相比，太阳能光伏发电的优点主要体现在：
①无枯竭危险；
②安全可靠，无噪声，无污染排放外，绝对干净（无公害）；
③不受资源分布地域的限制，可利用建筑屋面的优势；
④无需消耗燃料和架设输电线路即可就地发电供电；
⑤能源质量高；
⑥使用者从感情上容易接受；
⑦建设周期短，获取能源花费的时间短。 缺点： ①照射的能量分布密度小，即要占用巨大面积；②获得的能源同四季、昼夜及阴晴等气象条件有关。太阳能光伏发电的起源及发展
