The spread between wholesale energy prices between high and low renewable times (with low-compared-to-future renewable penetration) is around $20/MW (it’s not $

The spread between wholesale energy prices between high and low renewable times (with low-compared-to-future renewable penetration) is around $20/MW (it’s not $2 and it’s not usually $200), or about $0.02/kwh, so this isn’t a viable return. I doubt selling into the grid will ever get you retail prices in return (someone had to maintain load power lines). I think people worry a lot about market access when it doesn’t make sense. The market operators cannot handle the settlement and operations overhead of microscale power generators. They are not offering reliable commitments, and the metering just doesn’t exist at the small scale. Your local PG&E equivalent isn’t equipped to operate an efficient power market, I don’t think. For context - a “small” scale solar power plant is in the 10s of MWs, which >1000x bigger then a car battery at full output. Utility-scale storage is also in the same ballpark.