The Octopus integration is available from within HACS ( Home Assistant Community Store). If you don’t have HACS you’ll need to get that first and then you can get the integration add-in…
The rate card is also in HACS and is called octopus-energy-rates-card.
Total 8.2kW, with 4.6 to the rear and 3.6 to the front. Rear is east north east facing with much larger roof area available and front is west south west
I think the batteries are around 14kWh. The inverter is going to be a single 8.2kW unit. I think we are having an Eddi to use surplus generation for hot water
The house is not detached and the split is not symmetrical - at the rear we have more width at ground floor / rear (35 feet) and much less in the loft / front (20 feet)
Some statistics for May verified by Smartmeter
and the Net meter for the inverter. The panel production is from SolarEdge.
Panels 842.27 kWhp
Grid Import 188.77 kWh (168.2 to Batteries, 20.57 to house while batteries charging)
Grid Export 484.52 kWh
Inverter Out 912.25 kWh
Inverter In 168.2
Self Consumption = 912.26 - 484.52 + 20.57 = 448.31kWh of which
EV charger 62.2kWh
ASHP 92.9 kWh
I don’t entirely trust the figures from the SolarEdge App.
@TimOopNorth I would advise having an Import/Export (Net) meter as you are having battery as the extra cost now is minimal. Better still one with a digital interface for reading either via Modbus or Mbus.
All a bit frustrating - installer hasn’t commissioned the panels etc which were all installed yesterday. Pleased they managed to fit 10 on the front (and 10 rear) as front is a bit more south facing. They held off as they persuaded themselves that we are imminently getting the supply split but there is no date set for that and brother in law is dragging his feet a bit to avoid having to pay a full standing charge (rather than one third).
I am not sure what say we will have in smart meter being installed - will worry about that nearer the time
It takes time to issue the MCS certificate and get the DNO approval letter. I’d certainly recommend Octopus Flux tariff. Octopus are fussy about meters so you might need another if it is fitted by another supplier.
As my figures show we hardly use much at this time of year. I have been waiting for some sun the last two days to charge the car which needs 54kWh. Meanwhile we export 11kWh/ day at 36p/kWh.
I will certainly be signing up with octopus when we get the supply split. My only problem might be the export of wind turbine surplus as we have deemed 50% export on that. Might be worth losing for a better price but then that overlaps with the neighbours’ share of fit including export so unsure what the practicalities will be. The others won’t want overnight tariff differences I don’t think