One extra thing to consider financially is if you have a smart meter then you can get all of your hot water and a chunk of your heating done at off peak rates. Our off peak electricity rates are about equal per kWh to gas rates.
Without this I think our system would be roughly the same cost per year as gas or slightly more, with it we save £200 per year or so I think. (This would be a very long payback time but there was a fully funded scheme we used).
If it helps anyone we are in Scotland and get average COP=2.9
I recently had a coworker in the UK tell me they can get better off-peak rates if they install a home battery system and let the utility control it. I think in general the peak/off-peak rate difference could make a significant difference to these kinds of questions, but it’s very dependent on local and regional policy choices shaping energy markets.
One extra thing to consider financially is if you have a smart meter then you can get all of your hot water and a chunk of your heating done at off peak rates. Our off peak electricity rates are about equal per kWh to gas rates.
Without this I think our system would be roughly the same cost per year as gas or slightly more, with it we save £200 per year or so I think. (This would be a very long payback time but there was a fully funded scheme we used).
If it helps anyone we are in Scotland and get average COP=2.9
I recently had a coworker in the UK tell me they can get better off-peak rates if they install a home battery system and let the utility control it. I think in general the peak/off-peak rate difference could make a significant difference to these kinds of questions, but it’s very dependent on local and regional policy choices shaping energy markets.