gg1
Established Member
2. EU-wide energy saving; roughly 10 bcm per 1C reduction in buildings heat. With thermostats at 18C (reduced from 22C): total 40 bcm
This is the least realistic of all of them IMO as it relies on the individual actions of 300+ million people. The only way it's vaguely plausible is if it's enshrined in law (something referenced in the headline page of the site you quoted but omitted in the details), and even then how would it be enforced? Random spot checks of people's homes?2. This one has some legs, though there's a huge assumption about current thermostat settings and the energy efficiency of buildings.
I do agree with the point you alluded to about current thermostat settings, IME office buildings tend to be set in the high teens anyway and I very much doubt more than a small minority of people set their home thermostat at 22 or higher.