Google signs the largest corporate fusion power deal to date, aiming to supply AI-scale energy through its partnership with Commonwealth Fusion Systems.

The deal comes even though Commonwealth Fusion Systems has yet to demonstrate that its future power plant can generate power reliably or economically.

Google has struck a deal to buy 200 megawatts of fusion power, as the tech giant struggles to reach its sustainability goals in the face of the growing energy demands of artificial intelligence (AI).