[njarboe]

California will be changing dramatically how it charges for electricity in the next few years[1]. I was talking to a person Tesla today about putting solar on our house and he mentioned in passing that Time-Of-Use Rates will be the default for everyone in California in 2019 by law (AB 327 in passed in 2013). For your net metering you will get credit/pay for power to/from the grid at the rate for the time it happens. A good up-sell for the powerwall. If the rates get way out of wack due to high solar input, one could do well charging your powerwall during the peak solar production hours (see duck curve [2]) and putting them back on the grid a 3-6 hours later.

[1] https://cleantechnica.com/2015/06/08/california-rolls-out-de... [2] http://instituteforenergyresearch.org/solar-energys-duck-cur...