alt Hacker NewsIdea, which unfortunately won't be feasible until MAGA dies:
Huge tax breaks / incentives for data center construction but only if they are 100% powered by zero-carbon renewable energy.
Extend those breaks to existing data centers if they convert to 100% renewable energy.
To qualify they must either self-generate, having their own solar/wind/battery farms, or purchase 100% (net) renewable energy from the grid if that is possible, or some mix of that. They'd be allowed to have fossil fuels or "dirty" grid connections for backup if main power fails but not for normal operation.
First, it gets AI off fossil fuels and off the regular grid, but more importantly it adds yet another industrial scaling subsidy to renewable deployment, making renewables cheaper and more entrenched in the energy mix.
Unfortunately by the time the idiots are out we will probably have passed peak data center construction bubble, having missed a golden opportunity to yoke a huge economic bubble to the renewable migration. But hey, we get measles outbreaks and a new war in the Middle East, right?
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There have often been private deals between renewables and big energy customers but the finances don't always work out how you might expect. Renewable projects are built using debt with interest rates largely based on the likelihood of generating revenue by selling electricity. And because of the long time scale interest can snowball to form a substantial part of the cost. Having a guaranteed customer in the form of a data centre is balanced by the risk that they might go out of business. You are basically coupling the risk of the generator to the risk of the consumer. That is why CfD style schemes are often favoured because it is just a safer source of revenue. Obviously hyper scalers have access to very cheap credit, but they may end up paying more for the electricity.
Individual states could do that now. Notice that the major tax incurred by a data center is state/local property tax. It's why they often go looking for places with a property tax break, so giving it to them on the condition of "no fossil fuels" could be a pretty viable strategy.