Entries in summer (8)

Monday
Oct092017

Summer 2017 recap: Cool temperatures bring lower demand, prices 

Power system operates well during summer months, partial solar eclipse

Cooler than usual temperatures during July and August led to less demand for energy-intensive air conditioning, lowering overall consumer demand for electricity during Summer 2017. The cooler temperatures and lower consumer demand led to a relatively uneventful summer, and the ISO New England control room operators were able to reliably operate the power system throughout the season, including when a partial solar eclipse reduced output from solar power resources on August 21.

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Wednesday
Apr262017

Summer 2017 outlook: sufficient electricity supplies expected

New England is expected to have the resources needed to meet consumer demand for electricity this summer, though tight supply margins could develop if forecasted peak system conditions occur. If this happens, ISO New England will take steps to manage New England’s electricity supply and demand in real time and maintain power system reliability. Under normal weather conditions of 90 degrees Fahrenheit (F), electricity resources should be sufficient to meet consumer demand this summer, with a forecasted peak of 26,482 MW megawatts (MW). Extreme weather of 94°F could push up electricity demand to 28,865 MW. View the press release.

Thursday
Dec152016

One factor rises above the rest when accurately predicting future energy use: the weather

How the ISO uses weather forecasts in formulating electric demand estimates

Earlier this summer, on July 7, 2016, a cold front moved into New England from the north, leading to unexpectedly cooler temperatures across the region. Boston hovered in the mid-60s for most of the day. An unanticipated thunderstorm in Hartford  caused a quick and dramatic drop in temperatures. The cool weather lasted through July 8.

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Thursday
Dec082016

Summer 2016 markets report reviews wholesale market outcomes during June, July, and August 2016 

The Summer 2016 Quarterly Markets Report prepared by the Internal Market Monitor (IMM) of ISO New England reviews wholesale energy market outcomes for June, July, and August of 2016.The report notes that the total wholesale cost of electricity (including energy, capacity, and ancillary services) during the three-month period was $1.56 billion, up 13% compared to the market value of $1.38 billion during the summer of 2015. The average real-time wholesale energy price was $30.35 per megawatt-hour, a rise of 13% compared to the summer of 2015. The year-over-year increase was driven by 2% higher average demand due to hotter weather, particularly in August, and natural gas prices that averaged $2.68 per million British thermal units, 31% higher than the average price during the summer of 2015.

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Wednesday
Oct192016

Summer 2016 recap: Uneventful, until August

Summer 2016 was fairly uneventful until August arrived with its long stretches of hot, humid weather that pushed up demand for air conditioning and the electricity that powers it. Despite a high number of unexpected resource outages on one August day, ISO New England’s control room operators were able to operate the power system reliably that day and throughout the summer.

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Tuesday
Apr262016

2016 summer outlook: sufficient electricity supplies expected

Some natural gas generators may need to get their fuel from other sources during pipeline construction

Under normal weather conditions of 90 degrees Fahrenheit (F), electricity resources should be sufficient to meet consumer demand this summer, with a forecasted peak of 26,704 MW megawatts (MW). Extreme weather of 94°F could push up electricity demand to 29,042 MW. Construction work on the region’s natural gas pipeline infrastructure will require some power plants to obtain fuel from different sources. View the press release.

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