> You need the grid either way. True, although potentially a cheaper grid. > Why would you ever want to pay your neighbor $10/kWh plus the $100/month for the

> You need the grid either way. True, although potentially a cheaper grid. > Why would you ever want to pay your neighbor $10/kWh plus the $100/month for the connection? $100 seems like a high connection fee, I think it's normally around $25.00. If more people add solar than power is cheaper during the day. Even if you pay retail for it. Sure prices are likely to spike after sunset, you could either shift use, or get a battery. The more people that get batteries the cheaper power will get after sunset. Maybe people with larger lots will start adding wind because it's so profitable. Grid costs, the cost of delivering power should scale with the distance the grid has to carry the power. If a power plant is 500 miles away then use the cost paid should be much less than retail. But if the power sharing is within the same neighborhood (about 1 in 5 houses around me have solar and 1 in 10 have batteries) it should be retail prices since the connection fee covers the local grid.