Entries in system operations (51)

Thursday
Oct112018

Summer 2018: Air conditioners get a workout 

Operating the region’s power system changes with the seasons. New England is a summer-peaking system, but summer 2018 was marked by spells of hot and humid weather that drove consumer demand to peaks not seen in years and tested power system operations. Reliable grid operations were maintained throughout a summer that was bookended by holiday weather events: a heat wave in early July and an extremely hot and sticky Labor Day weekend.

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Tuesday
Aug212018

Battery storage is “charging” ahead in New England

ISO-NE continues to remove barriers and expand market access for energy-storage technologies

Grid-scale (also called utility-scale) battery storage is coming on fast in New England. While the region’s wholesale electricity markets are already open to battery storage resources, ISO New England is working to ensure they can fully reflect their physical capabilities to the markets. By 2022, currently proposed new projects could add almost 850 MW of battery storage capacity in the region. (ISO Generator Interconnection Queue, August 17, 2018) When compared to the 19 MW that are currently on line, this is a whopping increase of over 4,000%. Additionally, over 1,000 MW of the 9,400 MW of new wind and solar capacity currently proposed in the region will include some amount of battery storage.

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Friday
May252018

Beating the heat: how ISO-NE prepares for the dog days of summer

Once the region rounds the bend on winter, ISO New England begins preparing to operate the region’s power grid during the hot, humid summer months. The days of highest electricity use occur during the summer in New England when warmer weather leads to increased use of energy-intensive air conditioning, creating complex challenges for the grid operator. With a toolbox of procedures, processes, and expertise in place to ensure reliability of the bulk power grid, the ISO is capable of dealing with the wide variety of situations that can arise when demand for power is peaking.

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Thursday
May032018

A regional first: New Englanders used less grid electricity midday than while they were sleeping on April 21

Solar power also pushes past 2,300 megawatts (MW) for first time

On Saturday, April 21, 2018, the right combination of sunshine and mild weather led to light consumer demand on the high-voltage electric power system, coupled with record-high output from the more than 130,000 solar power installations in the region. The result was that midday grid demand dipped below overnight demand for the first time ever in New England.

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Tuesday
May012018

Summer 2018 outlook: adequate electricity supplies expected

Under normal weather conditions, New England is expected to have sufficient resources to meet peak consumer demand for electricity this summer, according to ISO New England. Tight supply margins could develop if forecasted peak system conditions associated with extreme hot and humid weather occur. If this happens, ISO New England will take steps to manage New England’s electricity supply and demand and maintain power system reliability. View the press release.

Wednesday
Apr252018

Winter 2017/2018 recap: Historic cold snap reinforces findings in Operational Fuel-Security Analysis

Weather always plays a crucial role in how ISO New England operates the region's power grid, and that was certainly the case as New England faced a historic two-week cold snap in late December and early January that sent temperatures plunging and nearly pushed the bulk power system to the brink.

"The cold temperatures, together with winter storms and other complicating factors, led to some of the most challenging conditions our system operators have ever had to navigate," said Peter Brandien, ISO New England's vice president for system operations.

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