-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Powerwall 2 UK - off grid charging and backup power
- Thread starter dazjohnson
- Start date
-
- Tags
- Powerwall Tesla Energy
WannabeOwner
Well-Known Member
I thought Robert Llewellyn's video (about the PowerWall he bought from the PPI rebate he got 
) indicated that he was charging on E7 overnight - but he might have been doing that via the APP (manually), or I may have mis-remembered what the YouTube content actually was
I think that my circumstances are "some edge cases" that need solving before I install PowerWall (in UK) but I'm keen to press on with that installation as soon as it covers my WishList:
We have max single-phase PV already, but I want to install more (and there is no way on this earth that I'm paying those thieving barstewards the monopoly-inflated extortionate fee for 3-Phase install. Glad I got that off my chest!)
If we install both PV + PowerWall my understanding is that that qualifies for a VAT [EU Sales tax] reduction, whereas PowerWall on its own does not, so I need to extend my PV at the same time.
Apparently?, I could install more PV and direct it solely into the PowerWall(s) so that it cannot get fed back into the grid. Then we discharge from (all the) PowerWalls on-demand within the house.
(I have some admin people working from my house during the day, so we have high day usage, and a number of always-on Servers and IT stuff)
I also need UPS ability (preferable with fast enough switch-over that computers don't reboot). We get enough 3-second power cuts in a year to be annoying (subjective but I think more than one per month would be accurate), which take down all the computers and require we reset all the electric clocks of course (what absolute moron designs an oven that you cannot turn on at all if the clock is flashing 00:00? <sigh>)
And lastly, we also want to install PowerWalls at work. We do have 3-Phase there, and no PV (yet), but initially we want to install PowerWall on just one phase. We have two server rooms (probably not on the same phase, but of course we can fix that) and want them powered when the blinking Electricity infrastructure people allow one of the phases to go down (yes, I'm annoyed about that too, its been happening once or twice a week for the last 6 months ...) Currently we have to trail an extension lead from an adjacent office (on a different phase, natch) to get the servers running, and of course that solution does not work after hours / weekend when people are working from home ...)
In a proper power cut we can send everyone home, and they could carry on working (remotely), if our servers were "up". Currently the servers each have individual UPS, which lasts 30 minutes or so.
) indicated that he was charging on E7 overnight - but he might have been doing that via the APP (manually), or I may have mis-remembered what the YouTube content actually was I think that my circumstances are "some edge cases" that need solving before I install PowerWall (in UK) but I'm keen to press on with that installation as soon as it covers my WishList:
We have max single-phase PV already, but I want to install more (and there is no way on this earth that I'm paying those thieving barstewards the monopoly-inflated extortionate fee for 3-Phase install. Glad I got that off my chest!)
If we install both PV + PowerWall my understanding is that that qualifies for a VAT [EU Sales tax] reduction, whereas PowerWall on its own does not, so I need to extend my PV at the same time.
Apparently?, I could install more PV and direct it solely into the PowerWall(s) so that it cannot get fed back into the grid. Then we discharge from (all the) PowerWalls on-demand within the house.
(I have some admin people working from my house during the day, so we have high day usage, and a number of always-on Servers and IT stuff)
I also need UPS ability (preferable with fast enough switch-over that computers don't reboot). We get enough 3-second power cuts in a year to be annoying (subjective but I think more than one per month would be accurate), which take down all the computers and require we reset all the electric clocks of course (what absolute moron designs an oven that you cannot turn on at all if the clock is flashing 00:00? <sigh>)
And lastly, we also want to install PowerWalls at work. We do have 3-Phase there, and no PV (yet), but initially we want to install PowerWall on just one phase. We have two server rooms (probably not on the same phase, but of course we can fix that) and want them powered when the blinking Electricity infrastructure people allow one of the phases to go down (yes, I'm annoyed about that too, its been happening once or twice a week for the last 6 months ...) Currently we have to trail an extension lead from an adjacent office (on a different phase, natch) to get the servers running, and of course that solution does not work after hours / weekend when people are working from home ...)
In a proper power cut we can send everyone home, and they could carry on working (remotely), if our servers were "up". Currently the servers each have individual UPS, which lasts 30 minutes or so.
