Entries in winter (19)


Winter 2018/2019 recap: What a difference a year makes

A year ago, Winter 2017/2018 included two weeks of bitter cold that challenged power system operations, but this past winter was marked by more moderate temperatures, leading to lower wholesale electricity prices and less stressful system conditions.

Temperatures during the 2018/2019 winter months – December, January, and February – averaged 30°F, less than a degree higher than the previous winter’s average temperature. But the difference was the region was not hit by any prolonged periods of extreme cold. With no extreme temperatures lasting for days, the region avoided the price spikes that drove up average wholesale power prices last year.

Click to read more ...


ISO-NE analyzes potential impact of offshore wind during historic cold spell

Acting on a request from the Massachusetts Clean Energy Center (MassCEC), ISO New England recently released a high-level assessment of the potential impact of offshore wind on the region’s power system during the historic cold snap from December 24, 2017 to January 8, 2018.

Click to read more ...


Argonne National Laboratory helps ISO-NE system operators prepare for impacts of major winter storm 

A “classic” Nor’easter can be anything but routine to the power grid

Nor’easters are a trademark of New England winters but the timing, intensity, and impact of such storms are far from predictable. ISO system operators must be prepared to operate the grid through a wide variety of wintertime scenarios.

This year, scientists from the Argonne National Laboratory studied previous Nor’easters and provided the ISO with a detailed analysis of the potential effects a major winter storm could have on the New England power system.

Click to read more ...


2018/2019 winter outlook: New England expected to have adequate resources 

ISO New England has implemented near-term changes based on lessons learned from historic cold snap

ISO New England, operator of New England’s power system, expects the region to have the necessary resources this winter to meet consumer demand, which is expected to peak at 20,357 megawatts (MW) under normal weather conditions or 21,057 MW at extreme temperatures.

However, as seen during last year’s two-week cold snap, power system operations could become challenging if demand is higher than projected, if the region loses a large generator, electricity imports are affected, or during periods of fuel delivery constraints. In those instances, the ISO could be required to implement emergency operating procedures to maintain reliability.

Click to read more ...


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.

Click to read more ...


Power Systems Update: New England grid operations through recent bitter cold weather and preparation for winter storm

January 7 Power Systems Update 

As of Sunday, January 7, New England’s bulk power system continues to operate reliably during this extremely frigid weather covering New England and the Northeast. Nevertheless, managing the region’s power system through these conditions continues to be challenging, primarily because of fuel availability.

Click to read more ...