Discussion
Sanity check warns EVs and heat pumps deliver “no proven carbon savings” ahead of 2030 clean power target
Has this academic study been discussed? I tried to search but couldn't find anything.
https://www.qmul.ac.uk/media/news/2026/science-and...
Has this academic study been discussed? I tried to search but couldn't find anything.
https://www.qmul.ac.uk/media/news/2026/science-and...
The linked study appears to be making claims about the situation between now and 2030, i.e. over the next four years.
However if you buy a new car, gas boiler or heat pump today, it'll typically still be in use in 15-20 years, i.e. until 2040-45.
Therefore obviously the choices we make as a society today about new EVs and heat pumps need to consider the situation in 2040, which this paper doesn't.
If we get to 2040 and suddenly start demanding people now scrap perfectly working nearly-new petrol cars and gas boilers, no-one will be very happy!
ETA the other clearly wrong assumption is that it's equally efficient to burn fuel in car engines as gas in power stations (they assume one-third for each) - in fact our gas power stations are 50% efficient, so even if all EV charging corresponds to additional gas-fired generation, there is still a significant saving in CO2.
https://www.statista.com/statistics/548943/thermal...
However if you buy a new car, gas boiler or heat pump today, it'll typically still be in use in 15-20 years, i.e. until 2040-45.
Therefore obviously the choices we make as a society today about new EVs and heat pumps need to consider the situation in 2040, which this paper doesn't.
If we get to 2040 and suddenly start demanding people now scrap perfectly working nearly-new petrol cars and gas boilers, no-one will be very happy!
ETA the other clearly wrong assumption is that it's equally efficient to burn fuel in car engines as gas in power stations (they assume one-third for each) - in fact our gas power stations are 50% efficient, so even if all EV charging corresponds to additional gas-fired generation, there is still a significant saving in CO2.
https://www.statista.com/statistics/548943/thermal...
Edited by samoht on Wednesday 18th March 21:59
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