Jan Wildeboer 😷Nov 9

Put battery in basement or garage. Book hourly rated electricity contract. Optionally add solar panels and switch to heat pump.

Charge battery when electricity price is negative or very low. Automatically switch to battery power when price is above defined threshold or battery is full. This approach might pay for itself over time. Has someone already tried this? Made a calculator? I am sure some of you did ;) @fedihouse

Show threadJoe Mansfield

@jwildeboer @fedihouse

In my case (in Ireland) my unit cost of electricity is about 11c per kWhr for a few hours at night vs ~33c per kWhr at other times.

The 5kWhr battery I put in a year ago cost me about €1800. It is set up to charge fully overnight at the lower rate and has saved me at least €400 in bills this year.

It was put in as part of a solar system that saved me ~€1700 in the last 12 months compared to the year before.

Nov 9 at 2:07pmWeb