Fall doesn’t officially start until around 10:30 p.m. today, but, for many transmission and generation owners, it’s already begun.
Spring and fall, often called “shoulder” seasons, give the grid a bit of a rest between hot summers and cold winters. Grid operators rely on these shoulders so transmission and generation owners can repair and maintain power plants and power lines. With comfortable weather, demand for power goes down, meaning they can safely schedule downtime for their facilities to perform maintenance.
By taking lines and power plants offline for repairs when demand is low, it helps ensure their availability when demand is high. Fall and spring’s lower demands give the grid the opportunity to prepare for the stresses summer and winter can bring.
If you’d like to know a little more about how PJM balances power during changing seasons, visit the PJM Learning Center.