In most locations, unless you have extremely stable weather, it's ideal to have a nearly even mix of wind and solar capacity, since wind is rather strongly anticorrelated with sunshine.
It'd be very reasonable to assume "this" means wind here.
Simple examples: energy efficient lights seem to have no downsides, better insulation helps my apartment building retain heat, more efficient electronics mean that my homelab servers pull like 100 W total and public transport probably removes a bunch of cars from the road and increases air quality and decreases traffic jams (I can get everywhere I need that way, there’s literally train, tram and bus stops like 5-15 minutes away).
Efficiency is good, but this isn't true. Decades into LED-ification we still suffer shit-tier PWM strobing, poor dimming, disruption to wildlife and human life, and streetlights turning purple en masse.
(The last two are installation and quality issues, but when driven by lowest-bidder compliance with simplistic "efficiency" mandates that's what you get).
Air conditioning is quite nice if you find yourself living in a hot environment, for example. But do we really all need smart watches? Or cameras everywhere? Or LLMs, for that matter?
> There must be a cap where quality of life is good enough though, right?
Maybe in some hypothetical future, but even the fantastical world Star Trek TNG has improvements on quality of life that could be made.
I think part of the problem of today lands on the post-cold war and certainly post-911 media landscape. There just aren't optimistic future. Distopia is more popular and certainly more numerous than Utopia.
Effectively all history of life was focused entirely on finding food, water, maybe shelter and safety, and breeding. Where do we draw the line and stop making new things just because we can?
I have nothing to base this on so its just a hunch, but I'd expect quality of life would increase for many people today by removing, rather than adding. Work a little less, buy a little less, have fewer distractions, etc.
Also energy consumption per capita is more than 2x higher in the US compared to Germany, while quality of life should be roughly similar. (In my personal opionion quality of life is better in Germany).
Energy use per capita will continue to rise in the medium term globally, but it's stable to slightly down over the last few decades in the US, say.
We need answers, not revert to a world of catholic sin
Change your car to run off electric, great
Change your city to transport 1000 people by train rahter than 1000 separate cars, great
Power your AC from your off-grid rooftop solar, great
Whine that people need to stop using AC, stop eating meat, stop watching TV, it's just harmful.
I didn't say people need to stop using AC, I don't even agree that eating less meat would help, and my only mention of TV above was in reference to people deciding to turn it off when they leave the house, not to watch less of it.
My main point, though, was that moving around how we use energy, and of what type, will do a lot less good than finding ways to use less.
It seems reasonable to want a government to help ensure externalities aren't being ignored in prices, but not to regulate them by saying how much and what types of things people can use. I don't want my government allocated a set amount of energy I use, for example, but I would be fine with them ensuring prices accurately reflect the true cost.
Ironically they often do the opposite, subsidizing energy and food costs which make things cheaper and hide externalities.
Risky geoengineering projects like stratospheric aerosol injection.
Direct atmospheric capture of CO2.
The latter is the safer option because it's just restoring the atmosphere to a known good state. Direct atmospheric capture of billions of tons of CO2 per year will take enormous amounts of energy. We're going to need a lot more nuclear power plants if there's any hope of pulling this off.
Alternative is World War Three when large parts of the planet become uninhabitable.
It is clearly not really feasable (at least not now). To me it just seems like the fossil fuel industry is doing the tobacco industry playbook of pushing stuff that doesn't actually work so people don't even try the stuff that does work: using less energy, and using less carbon intensive energy.
We really can move to less carbon intensive energy, there's lots of options all around us. Yes it means a systemic change - which is exactly what the fossil fuel industry doesn't want.
If I have to convince someone that 1) the climate is changing beyond historical patterns 2) I know the chemical/mechanical processes at play and 3) we caused it just so they turn off the TV when they leave the house or enjoy their current car a few years longer, its a situation that will never be resolved.
Do you think we should return to medieval heat and light?
Fossil fuels are very inefficient compared with alternatives like EVs and heat pumps and renewables.