SGIP (California's "Self Generation Incentive Program") is a nice try, and it will help stimulate the market for battery-based storage to soak up a small fraction of "off peak" PV generation. However, a longer term solution would be to institute electric rates that are market based in real time, as an alternative to today's fixed TOU periods and rate schedules. That would send the necessary market signals to shift consumption (and battery charging) to periods when there's "excess" renewable generation. This wouldn't be as sweet a deal for consumers as NEM 1.0, of course, but ultimately we'll need a more sustainable plan for adding renewables to the grid.
Texas now has such an offering from a company named "Griddy"
. The 15 minute interval $/KWH pricing is used to calculate your energy cost. Distribution cost is fixed (or not affected by any "plans"). The cost for their service is a fixed ~$10/month subscription charge. They will look at your historical usage and estimate a cost savings for their contract based on (historical) energy costs. In TX, the energy cost component has actually decreased, likely due to nat gas prices being depressed, but not likely to seriously affect the actual savings.
This type of contract could promote limited battery storage, especially for the higher energy users. For me, using only $1200/year energy there is not much economic incentive. However, I'll likely give it a try when my existing contract runs out. Hopefully, by that time I'll have a way to use my old Leaf for energy storage!!
Are there any energy contracts available in other locations that incentivize peak load shifting, that are similar in principle to the Griddy plan?
Appreciate any inputs as I'd like to look at possible cost saving scenarios that can justify solar/battery installations.
2012 Leaf SL; 36,000 miles. Battery replaced November 1st, 2016.
Rural cabin with 6750 watts Grid tied PV. Off-grid solar Leaf charging capable (level II).