It's a cheap way to multiply solar power; instead of producing lots of expensive PV panels, you can get the same amount of electricity with relatively cheap mirrors.
这是一种倍增太阳能电力的便宜方法；不用制造很多昂贵的太阳能电池板，使用相对便宜的镜子，你就可以得到相同数量的电。
In Japan, where electricity is expensive, solar power is now fully cost-competitive with power from the grid, says Paul Maycock of PV Energy Systems, a consultancy based in Virginia.
弗吉尼亚州PV能源系统咨询公司（PV Energy Systems）的保罗‧梅科恪列（Paul Maycock）说，日本的电力很贵，太阳能动力如今已完全能与电网电力等价消费。
Send For networking with system, pv array households that can not only supply the hair power building use, also can load into electricity grid.
对于联网户用系统，光伏阵列所发电力既可供给本建筑物负载使用，也可送入电网。
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