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Atm, you can supply all of your energy using solar power for about 75k without battery backup. This is for an average sized house with energy efficient appliances. Without the battery backup, this means that during the day you?ll use your own power but at night you are SOL unless you get power from the electric company. What you do then is you sell whatever extra energy you produce during the day to the power company and then at night you essentially ?buy back? the energy you sold them. Basically you can get your bill down to almost zilch doing this, but is 75k really worth the investment?
If you want to be off the net completely (that is, have battery backup so you can use power gathered during the day at night) expect to double the cost, so if your solar powered conversion cost 75k expect to pay around 150k for everything. At this point in time unless you are a tree hugging hippie it really isn?t worth the investment imo ?in your lifetime? but I wonder how solar-powered houses would do on the market?
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