The price of buying/selling to/from the grid is different at different times of the day. Artificially set by the utility. Different utilities have different r

The price of buying/selling to/from the grid is different at different times of the day. Artificially set by the utility. Different utilities have different rules. In some you can take advantage of the arbitrage if you have a battery; buying during the day and selling in the evenings. Exe here is San Diego's pricing from the perspective of consumption only: https://www.sdge.com/residential/pricing-plans/about-our-pricing-plans/time-use-plans https://www.sdge.com/residential/pricing-plans/about-our-pri...