Using solar energy, for example, I am told that excess energy can be sold back to the grid. How does this exactly work? Maybe I am a bit confused due to thinking about the analogy of water pressure / flow rate in a pipe network being similar to voltage / current in an electrical network. If your home generated excess energy, how would it overcome the high voltage / current of the grid?
In: Engineering
Instead of water coming out of the faucet, you pump water into the faucet and get paid for doing it.
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