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Can Con Ed avoid blackouts this summer?


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Can Con Ed avoid blackouts this summer?



June 23rd 2008



Bates for News

NY Waterway crosses East River in front of a darkened skyline during the massive

2003 blackout that affected 50 million people in seven states and Canada.


On hot summer nights, the drone of three million air conditioners in the city is as much a sound of the season as ice cream trucks and pickup baseball games.


The cold air soothes the sweaty, but puts enormous pressure on the electric grid. During the four-day heat wave at the beginning of this month, which broke the June record for peak electricity use two days in a row, the system held up, except for sporadic outages in parts of Brooklyn.


Whether it will all summer remains a question.


"Even though the peak demand will be higher than last year, there should be sufficient reserves and generating capacity for the summer," said Gary Paslow, spokesman for the New York Independent System Operator, which oversees the bulk electric system for the state.


The city has a long history of blackouts. In 1965, the great Northeast blackout left 25 million people in the dark. In 1977, a widespread blackout sparked looting and unrest. Five years ago, a massive power failure left 50 million in the Northeast and Canada in the dark.


Con Ed spokesman Joe Petta said the energy supplier begins to plan for the summer at the end of the previous season by tracking new buildings and increased demand with historical trends and future projections. Since last summer, Con Ed has spent $2 billion and added 10 million feet of cable and 1,700 new transformers as part of an ongoing effort to reinforce the system.


Still, the North American Electric Reliability Corp. determined in its latest annual assessment that increasing demand and limited infrastructure improvements over the long term are still very much a concern.


Part of the challenge is that people keep buying air conditioners. Con Ed estimates that a million air conditioners were installed in the last five years and expects a million more will be installed in the next five years.


The challenge is that there is no way to store electricity. Power must be generated in the city during peak times, causing bottlenecks and sometimes outages.


While the average capacity during the year is around 18,000 megawatts per hour, demand can nearly double on the hottest summer days.


"It's important that the system always has to be prepared to meet the peak even though a lot of times the usage is less," Paslow said.


Peak demand is the year's highest demand for a one-hour period, and generally occurs on a late afternoon several days into a heat wave, when electricity use increases as tolerance for the heat wanes.


On the hottest days, Petta said, Con Ed will have extra crews on standby.


Petta's main advice was to turn off the air conditioner when not at home. If New Yorkers heed those words when the heat comes, the city's lights may stay on this summer.

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They should install natural gas fired steam plants in queens and brooklyn to kick in and turn locally placed steam turbines in a electrical grid failure scenario, so at least they can provide the basic needs such as traffic lights, transit, and so on. It works in manhattan, why not on the LI? Also, where's that underwater tidal power plant in the east river? Again, so many solutions, yet so few plans to implement.


- Andy

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They should've used a picture of Astoria from that last major blackout NYC had because the blackout portrayed in the picture was not Con Ed's fault.


Yea, but it's a symptom of a larger issue with power management. They could have prevented it.


- Andy

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