Replacing Worcester oil boiler with an ASHP
October and November update
So my Daikin has had a good October and November (as at 16th).
October SCOP was 3.87 Consumed 10.4kWh/day compared to predicted 13.8kWh/day
November SCOP was 4.06 Consumed 15.5kWh/day compared to predicted 31.6kWh/day
Good news. Happy ASHP owner. If you read back, I’m using weather compensation curve, with the Nest acting as a step up switch.
Daikin Altherma 3H HT 18kW ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and Hyundai Ioniq 5 P45 electric vehicles with Myenergi Zappi mk1 charger
My January SCOP was 3.97 or 30.52kWh/day.
February SCOP was 4.46 or 16.48kWh/day
This is running weather compensation. With Nest control gradually increasing temperature during the day. H/w cycle is overnight on cheaper electricity.
I’m pleased with this performance.
Daikin Altherma 3H HT 18kW ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and Hyundai Ioniq 5 P45 electric vehicles with Myenergi Zappi mk1 charger
We used 8,891kWh of electricity in 2023. At face value this seems a big number. But that is all our energy usage. No gas or oil. And all the electricity for our EVs. So no petrol costs.
Octopus Go tariff.
And it’s roughly split 2/3rds at 29p & 1/3rd at 9p/kWh. Total cost £2000.
And we have 4kW of solar PV from 2012 which generates about 3500kWh of electricity for which we are paid about £2k. So break even.
We always try to undertake the Octopus electricity savings opportunities. There is an 1/2hr one tonight that will pay back.
And I’m still waiting for Vehicle to Grid charging, so I can use my EV batteries to run the house during the day and charge them up on cheaper electricity overnight.
Keep looking for ways to reduce my CO2 footprint. As Shaw Taylor used to say “keep ‘em peeled”
Daikin Altherma 3H HT 18kW ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and Hyundai Ioniq 5 P45 electric vehicles with Myenergi Zappi mk1 charger
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