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Effects of Cold Weather on the Con Edison Electric System: Jan. & Feb. 2014

Effects of Cold Weather on the Con Edison Electric System: Jan. & Feb. 2014. May 15, 2014. Winter 2013-2014. Central Park set a record low temperature for January 7th Low temperature of 4 degrees Previous record was set in 1896 (6 degrees) This winter saw 13 days with snowfall above 1 inch

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Effects of Cold Weather on the Con Edison Electric System: Jan. & Feb. 2014

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  1. Effects of Cold Weather on the Con Edison Electric System:Jan. & Feb. 2014 May 15, 2014

  2. Winter 2013-2014 • Central Park set a record low temperature for January 7th • Low temperature of 4 degrees • Previous record was set in 1896 (6 degrees) • This winter saw 13 days with snowfall above 1 inch • Dept. of Sanitation spread 456,000 tons of salt across NYC • Most since 2008-2009 (409,000) • High salt use drives distribution equipment impact

  3. Winter 2013-2014 *all data based on Central Park official climate station

  4. CECONY Summary • Overall the electric system performed very well • Breaker and substation equipment had no significant issues • No SF6 or compressed air issues • Proactive discussions with NYISO and Con Ed Gas Control • Zone J Power Plants • Dual fuel burning capability was an asset • Infrequency of use was evident initially • Implement Weather protocols • Closely monitor predicted weather (Precip & Temps) • Adjust staffing to assure proper coverage • Restrict scheduled work to prevent contingencies

  5. Fuel Supply Challenges • High natural gas demand • Generators gas deliveries were not interrupted and no days where gas was not able to be scheduled • Oil was the more economical fuel for 27 days • Operators NYISO / Con Ed closely tracked fuel supplies. • Closely monitored Min Oil Burn requirements • Some GTs unavailable to the system • Liquid fuel challenges in late January • Local inventory limited • Longer lead times on delivery • Limited barging available

  6. CECONY Summary • Steam Production • No alerts or reserve issues • Very close coordination with Con Ed Gas Control • Fuel related concerns for contracted production • Longer lead times securing additional inventory • Barge availability was lower • Con Ed owned steam system units • Very closely coordinated barge deliveries between all sites • Tide restrictions and additional tug boats needed due to ice in the river • Overcame the challenges associated with the infrequency of burning oil

  7. Ideas for the future • Gather fuel inventory electronically • Online inventory tool • Weekly projections • Pre- Season Actions • Demonstrate capability • Liquid fuel use • Auto swap if available • Communicate • Seasonal fuel supply • Available inventory

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