[detritus]

imho, not picky at all - in fact, a critical distinction, as the transportation slice of the energy pie is really quite a large one.

[youngtaff]

Reducing the transportation slice of the pie is a double win as something 50% of marine transport is shipping hydrocarbons around the world

[ViewTrick1002]

Usually calculated to be a 15-25% grid increase. Not massive compared to decarbonizing industries relying directly on fossil feedstock/energy.

[chickenbig]

Heating from gas is quite peaky (morning and evening heating cycles), whereas heat pumps are best when run low-and-steady.

Assuming 2/3 of residential heat demand transitions to heat pumps, and assuming an optimistic COP of 3 in the worst weather (highest flow temperatures, lowest air temperatures ... perhaps more like 2.5), then the power required to heat this fraction of houses is 2/3 / 3 = 2/9 of the mean gas demand. [0] linked report figure 1 shows a (smoothed by eyeball) demand of around 140GW "local gas demand" during the Beast from the East. This implies heat pumps would take over 31GW to power, which is more like 60% of the current UK electricity supply.

[0] https://ukerc.ac.uk/publications/local-gas-demand-vs-electri...

[blitzar]

My gas usage in KWh vastly outweighs my electricity usage.

[mjd89]

It's not apples-to-apples though due to the difference in heating efficiency. If you use N kWh to heat your house with a gas boiler, you'll use N/P to heat it with a heat pump. P is something like 3 or 4, depending on various factors (and who you ask).

[thebruce87m]

Yep, just checked and my gas is just under double my electricity for 2025.

9,000kWh for electricity vs 16,000kWh for gas

That’s with charging an EV too.

[philipallstar]

And construction as well. Concrete is emission-y.