Higher prices globally for these fuels, as well as pandemic-related supply chain challenges, could limit their availability in New England if needed to produce electricity this winter. “In recent years, oil and LNG have filled the gaps when extended periods of very cold weather have constrained natural gas pipeline supplies.
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“As we continue our work with the New England states and industry stakeholders to transition to a cleaner grid, the ISO also has to maintain real-time power system reliability,” said Gordon van Welie, ISO New England’s president and CEO. ISO officials said they expect to have the resources needed to meet consumer demand if the winter is mild, but a severe prolonged cold snap could mean emergency actions. The National Oceanic and Atmospheric Administration is predicting a milder than normal winter for the region. The officials said the weather is the biggest unknown that could trigger “controlled blackouts” to shed load and prevent a system failure. If those events occur, the system operator will use several operating procedures to manage the grid, with controlled power outages a last resort, they said. The natural gas priority during winter is for heat. System officials said three variables will determine the need for emergency action: weather severity, the global price of oil and LNG (liquified natural gas), and natural gas pipeline constraints during the winter heating season. ISO-New England officials Monday said if generators lack access to enough fuel, and a prolonged cold snap grips the region, rolling blackouts may be needed to prevent the entire grid from crashing. CONCORD - The New England power grid is vulnerable in winter and this year it is in an even more precarious situation due to energy supply chain issues and a changing global natural gas market.
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