ISO New England Forecasts Capacity Margin Shortfalls
September 16, 2019
ISO New England has published its 2019 Regional System Plan which forecasts annual energy use and peak demand for a 10-year horizon.
For winter 20/21, the analysis shows potential constraints in two scenarios. The “50-50” reference case illustrates peak loads that have a 50% chance of being exceeded in any peak season because of weather. The “90-10” extreme case peak loads have a 10% chance of being exceeded in any peak season because of weather. The projected operable capacity for winter 20/21 in the 50-50 scenario shows an operable capacity margin forecast of -163 MW. The 90-10 scenario has a -1,368 MW operable capacity margin.