Very interesting. I think there is one error. Because heat pumps produce ~3 times as much heat per kWh than gas they are cost effective for electricity prices up to ~3 times higher than gas prices.
Unfortunately electricity prices are often >4 times gas prices, as in the UK now.
They are less than 3 times gas prices in counties like France, Sweden and Norway, which have reliable clean energy like nuclear and hydro.
Countries dependent on intermittent renewables like Denmark, Germany and the UK all have electricity prices > 3 times gas prices.
Intermittent renewables make electricity prices too expensive for best pumps.
They also make electricity less reliable in cold weather, which is another reason not to rely on electric heat pumps.
yip, people confuse thermal efficiency with economic efficiency, the latter is measured through cost.
electrical conductors that consist of gold almost never degrade, corrode etc and that are far superior in quality than copper conductors. But we use the latter because gold is simply more expensive.
Cost takes into account the efficiency of all the variables.
Very interesting. I think there is one error. Because heat pumps produce ~3 times as much heat per kWh than gas they are cost effective for electricity prices up to ~3 times higher than gas prices.
Unfortunately electricity prices are often >4 times gas prices, as in the UK now.
They are less than 3 times gas prices in counties like France, Sweden and Norway, which have reliable clean energy like nuclear and hydro.
Countries dependent on intermittent renewables like Denmark, Germany and the UK all have electricity prices > 3 times gas prices.
Intermittent renewables make electricity prices too expensive for best pumps.
They also make electricity less reliable in cold weather, which is another reason not to rely on electric heat pumps.
yip, people confuse thermal efficiency with economic efficiency, the latter is measured through cost.
electrical conductors that consist of gold almost never degrade, corrode etc and that are far superior in quality than copper conductors. But we use the latter because gold is simply more expensive.
Cost takes into account the efficiency of all the variables.