Google signed an offtake agreement for 200 megawatts (MW) of clean fusion power in its first commercial commitment to the energy source.

The tech company will receive fusion power from Commonwealth Fusion System’s (CFS) inaugural ARC power plant in Chesterfield County, Virginia.

Google signed a power purchase agreement (PPA) for clean electricity from CFS, which expects to put power on the grid in the early 2030s.

Google has been an investor in CFS since 2021 and is also increasing its investment stake in the Devens, Massachusetts-based company. Financial terms were not disclosed.

Google also has the option to offtake power from additional ARC power plants.

“By entering into this agreement with CFS, we hope to help prove out and scale a promising pathway toward commercial fusion power. We’re excited to make this longer-term bet on a technology with transformative potential to meet the world’s future energy demand, and support CFS in their efforts to reach the scientific and engineering milestones needed to get there,” said Michael Terrell, Head of Advanced Energy at Google, in a statement.

CFS expects that its Chesterfield County ARC power plant will be the first grid-scale fusion power plant in the world, demonstrating the company’s scientific approach to developing fusion power; its application of key advances in high-temperature superconducting (HTS) magnets; and its execution velocity in constructing its fusion machine, SPARC, in Devens, Massachusetts.

The agreement between Google and CFS is anchored in CFS’ SPARC achieving net fusion energy, known as Q>1. Located at CFS’ Massachusetts headquarters, SPARC is a high magnetic field, compact version of a fusion device called a tokamak, whose design has been validated by multiple research papers and peer-reviewed by independent scientists. It is the precursor to ARC, which is designed to generate 400 megawatts of net electricity, a level comparable to a utility-scale natural gas power plant’s output.