Hi
Apologies if this has been answered elsewhere but I struggled to find it if so.
I have recently purchased a newly constructed property with a three-phase power supply. I believe it was built this way because it also has an air source heat pump, car charger, and no mains gas (so everything is powered through electrics).
We had planned on installing a Powerwall during the build phase so contacted a contractor to come and review the site and give us a quote.
When he came he informed us that as the house is three-phase, and the powerwall is not, we would only be able to connect it to one of the phases and therefore it wouldn’t be able to power everything in the house. This is probably fine as we’d connect to the phase that made the most sense and any excess could be sold to the grid. A tariff here in the UK allows you to purchase / sell energy at the same price so I think that’d work fine.
However, subsequently the same contract has told us that the Powerwall would also be limited to storing energy equivalent to 1/3 of the energy produced from the solar panels. This has a much larger impact as it implies that 2/3 would be wasted. I hadn’t seen this anywhere online so wanted to check - is this correct? These guys have been a little flakey so I’m not sure I trust everything they say!
Thanks and apologies again if this has been covered elsewhere.
Apologies if this has been answered elsewhere but I struggled to find it if so.
I have recently purchased a newly constructed property with a three-phase power supply. I believe it was built this way because it also has an air source heat pump, car charger, and no mains gas (so everything is powered through electrics).
We had planned on installing a Powerwall during the build phase so contacted a contractor to come and review the site and give us a quote.
When he came he informed us that as the house is three-phase, and the powerwall is not, we would only be able to connect it to one of the phases and therefore it wouldn’t be able to power everything in the house. This is probably fine as we’d connect to the phase that made the most sense and any excess could be sold to the grid. A tariff here in the UK allows you to purchase / sell energy at the same price so I think that’d work fine.
However, subsequently the same contract has told us that the Powerwall would also be limited to storing energy equivalent to 1/3 of the energy produced from the solar panels. This has a much larger impact as it implies that 2/3 would be wasted. I hadn’t seen this anywhere online so wanted to check - is this correct? These guys have been a little flakey so I’m not sure I trust everything they say!
Thanks and apologies again if this has been covered elsewhere.