This system allows people to operate a solar system without batteries, because the grid acts as a battery, storing their energy, Masri said. Cost makes many people choose to power only part of their home with solar. But prices are going down. Today, solar systems cost a third of 1980 prices, Masri said. Also, making your own power allows independence in times like these, when utility bills are doubling and tripling.
Natural gas goes up and down, but the sun is free.
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