That solar fusion reactor in the sky will continue to provide us with FREE ENERGY and heat for the next 4 Billion years.
We could be using solar energy to help produce hydrogen through electrolysis with regular sea water.
The move to electric vehicles makes the most sense. We can continue to install solar in as many places as possible to help the electric grid and provide shade/shelter. Then add charging stations - level 2 and level 3 where appropriate. Continue to push for nuclear power and alternative energy.
Electrical furnaces and electrical appliances.
But none of that changes the fact that when you have less expensive energy, it drives human population growth and its possible some people don't want that.
I think one of the biggest issues is government red tape along with EV manufacturers (and specifically the cheap ones) that are both deliberately preventing V2H and V2G when every electric vehicle made these days easily has this capability already. But it's blocked for no reason whatsoever, and pay-walled behind EV's that cost over 6 figures, when this bidirectional tech should already be every EV owner's right.
Most households use half their energy during the 16 hours of no solar sunlight. All EV batteries are usually around 40-80kWh which can run most houses at night for several days easily.
Anyone with a cheap EV should be able to have free electricity from their own rooftop solar, and be allowed to freely store it in their own vehicle's battery, and freely use it at will. And then you'll find they'll often have plenty of excess, which they can send to the grid to share around with other heavy users who can't export, or with daytime drivers who can't charge from their solar on weekdays.
Everyone would be incentivised to have a low-end cheap EV, because not only will their fuel be free, but their electricity would also be free, or almost. Power plants would literally not have to do anything, except just keep a little coal reserves for emergency occasions or whatever, but essentially the population themselves would be generating/storing the entire world's energy usage all on their own, just from their own roof solar and own EV.
And it would be almost 'free'. Since the EV would replace the car, the battery is essentially free. Solar panels last 25 years and are fairly cheap. Inverters often run for 10 years. And the EV battery if auto-implemented with a 10-20% reserve and proper cooling, should last 20 years with minimal degradation. Some 10-year old teslas still have 80-90% battery capacity after 100k miles, simply because they were actually made properly, and not like the older non-cooled nissan leaf batteries that were easily abused into scrap after just 10 years.
Also, the government should increase the allowable household solar limits from 5-10kW up to about 20kW in my opinion. This way weekday workers can charge their EV just on sunny weekends and still get up to about 200kWh of energy just from those two days alone.
If electricity was free like this, more charging stations would open up everywhere, meaning more EV ownership, and the whole global energy system would very quickly just end up being entirely free with so much excess energy left over every day, that the power companies will have no way of using it all.
But it all boils down to EV manufacturer greed, plus government red tape, along with energy giants complicity, that has been preventing this free electricity for nearly a decade. It's just sad really. And yeah, sure we have new tech like hydrogen, nuclear, plasma, solid state batteries, etc., but my point is, we don't actually even need any of these, because we can already get almost free global energy and free global fuel right now with just rooftop solar and EV batteries right now, but we simply choose not to.