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?