I had the occasion to work in Peru, during the radical days of the ‘80s....a favorite practice of government was to turn the power off to certain locations, in order to create anxiety.....
I think this all-embracing "greenhouse gas" nonsense will give the government the legal power it wants to announce that electricity to certain places will be restricted at certain times. As you point out, this is a psychological technique. In addition, raising people's discomfort level (for example, the fact that AC or heating would also be affected by the restriction of electrical power) makes them focus on their own unhappiness and distracts them.