Here’s a good overview:
I’m especially keen on knowing whether I could sign upto it if I’m in receipt of a feed in tariff?
Cheers - Rob
It looks interesting for us newbies, and it somewhat undercuts the argument about battery only installations because the day export rate is higher than the cheap rate import rate including VAT. So those who still have gas heating probably use around 10-15 kWh per day, fill up the battery on the cheap slot, use solar during the day (fill up any remaining ingredients battery/hw storage) and export the excess, then force export the rest in the in the peak slot and try to turn a profit. Looking at the numbers I think one year of flux at these rates would buy maybe 45 cells from Colin due to the profit.Lincs Robert wrote: ↑Fri Mar 17, 2023 7:32 pm I’ve done the sums & this isn’t for me …… It might work for some though
The export is effectively SEG, so should be tax free like FIT.
I agree, there is not much flexibility in a lot of cases becasuse of limitations from the inverter.Lincs Robert wrote: ↑Sat Mar 18, 2023 12:15 pm I think the devil really is in the detail with this one. You say “fill up the battery at cheap rate”. Great in theory - but the cheap rate is only for 3 hours, which means that with a 3600w charger/inverter that you would only be able to harvest about 11kWh during the slot. Coupled with the fact that the cheap import rate is roughly 50% more expensive than the Go equivalent. I didn’t get as far as the spreadsheet analysis as the back of the envelope calculations showed me that there wasn’t enough in it for me. Another factor is that very accurate weather forecasts would be essential to make it work. Imagine that the forecast showed that tomorrow would be sunny and that you were expecting a decent amount of sunshine & it didn’t materialise. I’m seeing that at the moment to some extent, but am somewhat protected as I’ve got a fairly decent amount of battery storage, 40kWh ish, so have a fair margin of error on my side.
I think this is one of those things in life where there is no right answer.
Sorry, I may have misunderstood, I thought that once the earnings go over £1,000 HMRC wanted their cut? It's relevant because anyone who pushes the arbitrage on Flux will approach that figure regardless of any other export?