ISO-NE’s wholesale electric market totaled $4.1 billion in 2016, down 30% from 2015, thanks to low natural gas prices and mild weather that cut demand and eliminated pipeline congestion and resulting price spikes.
LMPs averaged $28.94/MWh last year, down from $41/MWh, while natural gas — which produced 49% of the region’s electricity — averaged $3.09/MMBtu, down from $4.64/MMBtu. The Energy Information Administration reported last month that gas prices last year were the lowest since 1999.
ISO-NE said preliminary figures showed demand for electricity fell 2.1% last year to 124,323 GWh. “An unconstrained transmission system allows the least expensive power plants to be used to meet demand across the region,” the RTO noted in a press release. “Congestion has been virtually eliminated in New England with $8 billion in transmission upgrades since 2002.”
“When New England’s natural gas power plants can access low-cost fuel, wholesale power prices tend to remain low,” CEO Gordon van Welie said in a statement. “By comparison, extremely cold temperatures three winters ago resulted in pipeline constraints and caused natural gas — and wholesale electricity — prices to hit record highs.”
– Rich Heidorn Jr.
