US Grid Constraints: Towards 40GW+ of Behind-The-Meter Datacenter by 2028?

Key Points:

• The US power grid is nearing capacity limits as datacenter demand, driven by AI labs and hyperscalers, is expected to surge from 21GW in 2026 to 84GW by 2030, outpacing new grid supply growth which is projected at 15-20GW annually.
• Behind-The-Meter (BTM) power solutions are becoming the preferred approach for large datacenters due to grid constraints, with over half of new US datacenters in 2028+ expected to rely on BTM and the market for BTM equipment forecasted to exceed 50GW/year by 2029.
• Grid capacity shortfalls are caused by slow power plant construction timelines, regulatory and queue delays, and extended equipment lead times, with net grid headroom turning negative by 2027, forcing datacenter operators to secure power through onsite generation or hybrid models.
• Renewable energy and storage contribute significantly to nameplate capacity additions but provide limited firm capacity value due to their intermittent nature and declining marginal ELCC, emphasizing the need for dispatchable generation sources for datacenter reliability.
• Hybrid power structures, especially in ERCOT, combining onsite generation with limited grid access (e.g., Net-Metering Arrangements and Bring Your Own Generation), are emerging as practical solutions to address grid constraints, with regulatory frameworks evolving to support these models.