Long, hot, successful summer

Power Plant Operations (PPO) and the Long Island generating fleet supply electricity to Long Island year ‘round, but summer presents the greatest challenge as customers of the Long Island Power Authority turn on their air conditioners to fend off the heat and humidity. In fact, the record summer peak electric demand is almost twice the highest winter demand.

Accordingly, most of PPO’s efforts throughout the year focus on planning and executing of the extensive power plant maintenance work scheduled between September and May in order to meet the annual demands of summer.

Summer 2015 was the hottest in three years with multiple heat waves featuring temperatures in the 90s along with high humidity.

The good news is that all that preparedness paid handsome dividends. The metrics tell the story:

  • 50 National Grid generators were available for service 98% of the time during the summer months of June through August. The four newest units achieved 99% availability for the same period.
  • Through August, we generated 583,000 MWH more than last year which is worth an estimated half million dollars in additional revenue from LIPA.
  • We provided more than 50% of LIPA’s electricity supply during the peak hours.
  • Overall National Grid has provided 25.4% of LIPA’s electricity year to date; up 3% from last year.
  • Burning mostly natural gas, the plants delivered fuel efficiency that was more than 1% better than what we guarantee to LIPA.

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