Fair enough. I could buy this.
So, how are they planning to get all this power from Sub-Saharan Africa to, say, Philadelphia?
Not a unique problem. Generation of power is the easy part. Transmission and distribution is the difficult piece. But Liberals don't like to be confused with facts and tough questions.
Metals are denser in energy per KG than even hydrocarbons on a BTU per KG basis. With massive amounts of spare power the best way to move it would be to refine metal oxides electrochemically into base metals(this is done worldwide by the millions of KG commercially every day) then transport the metal by the thousands of tons via ship to where you need the power and then feed that metal into metal-air fuel cells. Once the fuel cells convert it back to metal oxides return that to the desert and electrorefine it again in an endless loop.
We already bulk transport oil via tankers half way around the world and send the empty tankers back. A similar sized ship carrying aluminum metal would have almost three times the energy stored as chemical energy than hydrocarbons as aluminum is 3 times denser than oil with comparable BTU per gram of free gibbs energy. Check out the link below that alum-air battery would give an EV a 1000 mile range with only 55KG of AL metal. Gasoline is 0.77kg/L so converting to gallons and Lbs 20 gallons of gas weights 54.22 Kg. the fuel cell never gets replaced only the metal plates of about a KG each would be replaced, slide in slide out. Metal air batteries are the future they have energy density that rival gasoline and electric motors are 90% efficient vs at most 50% for a ICE. It is not a matter of if but when EVs replace ICE vehicles.
I work in the oil industry as a petroleum geologist and even I know this is coming in my life time for sure. Oil is arguably too valuable to burn we need it for all the other things like plastics, medicines, fertilizers, fibers, lubricants ect. Oil is the Lego blocks, and the glue that holds modern society together.
https://phys.org/news/2013-03-phinergy-aluminum-air-battery-capable-fueling.html