Data centers are used to asking the grid for power. OpenAI now says it will offer some back. On 2 November the company announced the Grid Protectors Program: the U.S. campuses it develops itself are to reduce their electricity use when the local grid is under strain, for example in extreme weather. The first site is a planned campus of about 3.2 GW in Effingham County, Georgia.
One Gigawatt On Call
In Georgia the arrangement is already in a contract. Under a 25-year agreement that the state regulator approved in late August, OpenAI is to provide up to 1,000 MW of flexible demand for Georgia Power, which OpenAI compares to the average use of about 700,000 homes. That is roughly a third of what the campus is expected to draw. The campus is still being built, so the figure is a contractual ability that has not been used yet, and the filed contract is partly redacted.
For other sites OpenAI says it will agree with each utility how much load can be dropped, how fast and for how long. It has named no second location. The company says it will pay the full cost of the lines and service its campuses need, and states that households and small businesses should not carry the electricity bill of a computing campus.
How The Cut Would Be Made
OpenAI does not say. It mentions that some sites may feed power back to the grid from on-site generators or batteries, as a possibility and not as a rule, and it does not say which workloads would be slowed. Georgia Power, for its part, expects flexible large customers to let it build less new generation and projects yearly savings for its customers of about 950 million dollars from 2029; these are the utility's own projections and consumer advocates have questioned the assumptions. OpenAI also admits that demand response cannot replace new power plants and lines.
The Generator Question
If a site answers a grid call partly with its own engines or turbines, the plant stops being pure standby. Running hours, emission limits and noise permits, which are written around occasional testing today, then have to cover real operation, and the rules in some states are tightening, as in Virginia. Cooling and ventilation of the generator rooms must also be thought through for hours of running that a pure backup plant never sees. That is a design question to ask early, and our data centers page shows where these systems sit in a campus.
Sources: The Next Web, Data Studios
