Load Following
Load following is the capability of a nuclear reactor to adjust power output in response to grid demand fluctuations. It contrasts with baseload operation.
PWRs and BWRs can load follow by 50-100% power daily via control rods and boron adjustments, with ramps of 5%/minute. Limits arise from thermal fatigue and xenon buildup. Advanced SMRs aim for faster response.
Why it matters now
Data center PPAs in 2025-2026 demand load-following SMRs to complement intermittents. It enhances grid flexibility amid renewables growth.