I thought I'd publish some rough figures for the running costs for 12 months.
Details.
85 Sq M bungalow.
North Scotland -highlands
All electric (heating/DHW/cooking and running * two self catering cabins)
4 kW South facing solar panels.
0.88 ACH
EPC A103
Heating set to 20⁰C
DHW set to 43⁰C
Year to date:
Total Electricity usage 3300kWh
ASHP usage 890kWh heat and DHW don't know if Samsung gen6 can split the usage?
Solar Generation 4254kWh
Solar export (given away) 2359kWh.
I'm happy with the house, and the heat retention seems very good for our budget build.
Heating hasn't been needed since mid April, and has only been on around 6 days this autumn.
Obviously my biggest issue is reducing our solar export. I have done nothing in this regard with the exception of manually loading shifting washing machine / drier / dishwasher on sunny days.
My issue with solar diverter is that the meter is located 50M from the house (in an enclosure) the house is supplied separately from the cabins so I can't just monitor the house as the cabins maybe using power.
I'm in the early stages of exploring using ESP-Now as a CT clamp monitor and building a diverter similar to how @ProDave and others have done.
How do these figures look?
*We had around 170 days of cabin usage which use electric for cooking/heating and the laundry.
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