That's exactly what Powerwalls are. In Vermont, Green Mountain Power had a deal where they bought 2000 Powerwalls and gave them to customers throughout the state. Customers could get up to two, paying only $1500 each for the installation and agreeing to let GMP manage them. GMP now has ~2.7 gWh of stored capacity, distributed throughout the state to minimize transmission costs. In times of high electricity spot market prices or outages, GMP draws down the Powerwalls, then refills them at night when prices are lower.
The Powerwalls also act as a UPS for the whole house. When bad weather is predicted in an area, GMP makes sure your Powerwall is full. My town had a 4+ hour outage a few weeks back and I had power the whole time, the microwave clock didn't even reset. I only have one Powerwall but could easily last 2+ days with it, and it's silent, unlike a generator. --John Lightfoot -----Original Message----- From: NANOG <nanog-boun...@nanog.org> on behalf of Howard Leadmon <how...@leadmon.net> Date: Monday, December 30, 2019 at 3:09 PM To: "nanog@nanog.org" <nanog@nanog.org> Subject: Re: power to the internet Isn't that what the Tesla Power Wall's are? I thought that was the fill measure for when the solar panels aren't generating. I have never gotten anything, but know when you look on their site for Solar, they try and pitch the batter power walls to run your house for days if needed.. --- Howard Leadmon PBW Communications, LLC http://www.pbwcomm.com On 12/26/2019 2:08 PM, Keith Medcalf wrote: >> I just looked up Telsa's battery packs and they seem to be between >> 60-100kwh. Our daily use is about 30kwh in the fall, so it's only 2-3 >> days. Admittedly we can turn off the hot tub, water heater, etc to >> stretch it out. And of course, that means that you can't drive it... The >> one thing that would be for everybody's good is using them during peak >> hours. If you work normal hours, then that only gets part of the peak >> load, unfortunately. > Just buy three of them. Two to leave in the garage as a "mobile battery > pack" and one to drive around. > > All problems solved. >
