Yep, exactly. My meter used to spin backwards, but my utility came and installed a new digital meter that has two readings. One measures how much the house takes from the grid and the other measures how much I feed to the grid. Same principle, but I'm told this is more accurate. The meters weren't really designed to spin backwards(at least that's what my utility told me) and they weren't ac accurate as they would like when measuring the electricity flow out of the house.
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