which sounds like a lot until you remember that total world energy consumption is over 110,000 TWh. So using your numbers, you would need 88,000 topaz solar stations at a cost of $220 trillion.
Makes ITER look like a drop in the bucket.
Makes ITER look like a drop in the bucket.
I'm merely saying that if we have $20 billion laying around you can imagine the practical route of powering the Bay Area completely on renewables right now.
How many $20 billion experiments are we away from fusion reaching those numbers?
And also, why not expand Fission production. We have 5000 years of global energy powering Uranium fuel supply in the oceans. Power everything with nuclear and you have a cool 1000-2000 years of no scarcity to figure out Fusion.