Can you dual-wire a house, part AC and part DC?
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Can you dual-wire a house, part AC and part DC?
Lee Watt
March 17, 2019Last updated: Aug. 3, 2020
我最近一直在研究太阳能、并网和备用系统。当我们计划建造一栋符合被动住宅标准的房子时，有没有办法避免只使用交流电源系统?我想建立它至少有一个直流电系统运行的灯，以防止浪费的逆变器和再次在光源。这也将允许更小的电线被运行到实际的光，从而节省一些成本。国家建筑规范是允许人们这样做还是仍然设置交流电只有在每12英尺插上电源?
Lee
We have seen that peopledual wire a house for solar panelsso there's no technical problem with it, but to know if you're allowed you'd need to check with your local building authorities to be sure it doesn't violate Building code.
Our two cents - there is for sure losses due to the inverter, but for a load as small as lighting, it may not be worth the added effort to wire it for DC, particularly if you useLED lighting. Since you’re going to install an inverter anyway, it really boils down to the amount of lights you think you’ll need, what that draw is, and how much cost and effort is required to run DC as well.
Please let us know what you finally decide, that's a great question and a great ide, thanks!