I think we will hear about more upcoming battery storage as we close out the year. http://investors.solarcity.com/common/mobile/iphone/releasedetail.cfm?ReleaseID=884264&CompanyID=AMDA-14LQRE&mobileid= Here is an older article about tesla testing these batteries to reduce peak load at Fremont. http://insideevs.com/tesla-cto-straubel-batteries-energy-storage-technology/ And it looks like Tesla is not the only one who has been talking to the Utilities about grid storage. http://www.extremetech.com/extreme/194552-worlds-largest-lithium-ion-battery-to-be-built-in-southern-california-dwarfs-previous-installations This would be a great subject in the next earnings call. I would love to get analyst thinking about this a little more.