Electric reliability in New York state declined last year compared to 2016 because of a severe wind storm in March, Department of Public Service staff told the Public Service Commission on Thursday.
Excluding weather-related outages, overall interruption frequency — the main metric DPS staff use — improved slightly, according to their annual report on reliability. However, some service areas saw longer interruptions, and others saw an uptick in tree-related outages compared to other causes (18-E-0153).
But while it led to record wind generation in NYISO, the March storm, with gusts up to 70 mph, easily downed distribution lines in upstate New York. (See “NYISO Sets Wind Energy Record in March,” NYISO Management Committee Briefs.)
The three upstate utilities — National Grid, Rochester Gas & Electric and New York State Electric and Gas — collectively reported about 284,000 outages in their service territories as a result of the storm. A DPS investigation found that RG&E and NYSEG did not follow their emergency response plans, leading to longer outage times, and the utilities have filed a joint proposal with the PSC to settle staff’s alleged violations for $3.9 million.
Staff expect reliability to only worsen because of severe weather. “The weather events dominating the headlines recently indicate weather patterns are producing more frequent and powerful events,” they said. “As a result, this reliability category is expected to decline given the number of significant weather events that have occurred in 2018.”
New York has already experienced several unusually powerful storms this year, including January’s bomb cyclone, a series of March nor’easters, a spate of severe thunderstorms on May 15 and a tornado on May 3.
Pipeline Safety Efforts Improve
Meanwhile, pipeline safety improved overall last year, as local distribution companies improved their damage prevention, emergency response and leak management efforts (18-G-0260). The number of reported damages to natural gas pipelines in the state decreased slightly, from 1,565 to 1,562.
The DPS measures LDCs’ damage prevention by tallying up damages resulting from certain actions, such as mismarking areas or contractors failing to notify LDCs of excavation activities. By this standard, damage prevention improved by 22.5%.
The LDCs’ ability to respond to emergencies within 30, 60 and 90 minutes all improved, staff said. Additionally, the utilities reduced their backlog of leaks by 2,354, or 13.4%.
Staff also presented reports on electricity safety (18-E-0279) and customer service (18-M-0267).
Separately, as part of its consent agenda, the PSC approved a $1.98 million settlement by National Grid for a 2015 pipeline explosion on Long Island that destroyed a house and severely injured two people inside (15-G-0298). A staff investigation found the company failed to disconnect gas service to the house after a resident request.
Central Hudson Rate Increase Lowered; Burman Dissents
The PSC voted 3-1 to approve a $36.4 million electric and gas rate increase for Central Hudson Gas & Electric, 57% below what the utility initially requested (17-E-0459, 17-G-0460).
Under a joint proposal with DPS staff, Central Hudson agreed to increase its rates over three years, instead of all at once. Eligible low-income customers will also see a 65% rate decrease under the plan.
“The progressive plan that was adopted — endorsed with complete stakeholder support by environmental groups, large business customers and the largest municipality in the region — includes a nation-leading affordability policy that substantially lowers bills for most low-income customers,” Chair John B. Rhodes said in a statement.
Commissioner Diane Burman spoke for more than half an hour explaining the many reasons for her “clear ‘no’ vote.” But she said the single issue that tipped the scales for her was a $264 credit to customers who install geothermal HVAC systems, which the commission says are more energy efficient and emit less carbon.
“We always say that we’re fuel-neutral [and] technology-neutral … here, we would not be,” Burman said. “And there’s no explanation to me why except that it was agreed to in the joint proposal.”
— Michael Brooks
