California wants to make all new residential construction net zero by 2020. That's right - every new home built after 2020 must produce more power than it uses over the course of a year. For commercial construction the target is 2030.
Utilities will still be needed even after this transition. But what is the business model to allow a utility to act as a giant battery and provider of last resort to power customers who are simultaneously power producers? I have a few ideas, as I've been expressing in my Electronomics blog. But I'm looking for your opinions too.