You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature currently requires accessing the site using the built-in Safari browser.
I’m looking at either a standby generator and all the associated headaches re: fuel & maintainence as compared with a Powerwall or two (with existing solar) where I have do nothing and I could essentially live off grid perpetually (with caveats of course). So far I’ve had no success in getting Tesla to call me back.
Would'a been nice to have a Powerwall this week, with a two day power outage due to the snow storm. But with net metering in MA, the only use (that I can see) for a Powerwall would be as a UPS...and it's a rather pricey one at that. I'd need a bunch to keep my house going for even 8 hours.
I was told last year that NG has limits on net metering for commercial installations. I was under the impression that panels hooked up to 10 kW inverters were not an issue. Higher than that might not be able to get 100% net metering.Also found out which I didn't know that National Grid has a limit on the amount of power they will purchase so Sunrun had to downsize the solar system expansion since its a lease option. Eversource has a similiar situation. Anyone else run into this?
I was told last year that NG has limits on net metering for commercial installations. I was under the impression that panels hooked up to 10 kW inverters were not an issue. Higher than that might not be able to get 100% net metering.
I just went through this process with Eversource trying to get approval for additional 9 panels and 2 powerwalls (in addition to my existing 34 panels). Existing panels work off of 7kW inverter. And the smallest inverter Tesla can install is 3.4kW (I think), which was bringing me over that 10kW limit. After calling directly to Eversource, they actually told me, that you can have up to 25kW inverter on your house in MA (for three-phase connection), you just have to register with MassACA which was news to my Tesla representative. He double checked it, and said that this information is correct, and that Tesla will take care and cover the fee for MassACA application. At this point, I'm about a week/two away from getting approval from Eversource for installation of the system.
So this morning I get an update from my Sunrun rep and he indicated that National Grid is much more restrictive then Eversource on this an that MassACA is not an option. Also commented on MassACA that some of their Eversource customers have gone on a waiting list and in some cases the customers approval process took many months.
ivolodin hope your application gets quick approval.
To get back to the original question (sorry the thread got derailed somewhat), I think it's a bit hard to answer directly, because at this point it doesn't make a whole lot of sense installing Powerwall alone, without installing solar panels at the same time. If you install Powerwall alone, you will have to pay for the Powerwall + installation charges, which usually comes out to be around $7k (for a single Powerwall), however, if you install it as part of the solar array installation, you get 30% back in federal tax credits and other credits, because in that case, Powerwall is considered to be part of the renewable energy system installation, which is subject to credits and incentives.I realize this should probably go in the Energy sun forum but I’m looking for folks In New England who have the Tesla Powerwall installed. Wondering about installation costs and overall experience. Thanks !
Assuming you don't have Time of Use rates. Although that is slowly changing - Liberty Utilities files for Tesla battery pilot in NHOr even without any solar system at all. What I'm saying is - it doesn't make sense to do that right now.