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NARUC Summer Meeting. ENERGY RESOURCES & ENVIRONMENT COMMITTEE Marriott Marquis New York City July 16, 2007. Off-Peak Cooling with Thermal Energy Storage (TES) .

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Naruc summer meeting

NARUC Summer Meeting



Marriott Marquis

New York City

July 16, 2007

Off-Peak Cooling with Thermal Energy Storage (TES)

Naruc summer meeting

Off-Peak Cooling with Thermal Energy Storage (TES):An energy efficient technology to reduce peak electricity demand, operating costs, and NOx & CO2 emissions.

  • Moderator:The Hon. Clifton C. Below,New Hampshire Public Utilities Commission

    • Mark MacCracken,CEO, CALMAC Mfg. Corp.

    • Greg Tropsa, President, ICE-Energy, Inc.

    • Chris Smith, Peak Load Reduction Program Manager, NYSERDA (NY State Energy Research & Development Authority)

Iso ne summer peak load factors history 1980 2006 forecast 2007 2016

Load Factors (asset utilization rates) are declining

ISO-NE Summer Peak Load FactorsHistory 1980-2006, Forecast 2007-2016




From ISO-NE, 2007 CELT (Capacity, Energy, Loads and Transmission) and RSP (Regional System Plan) Forecast

CB p. 2

Naruc summer meeting

Even on the hottest and highest peak days, demand (and prices) drop at night

Record Peak

CB p. 5

Nox emissions and high electricity demand days hedd

Daily temperature prices) drop at night

NOx Emissions and High Electricity Demand Days (HEDD)

High electricity demand days the environmental opportunity
High Electricity Demand Days: prices) drop at night The Environmental Opportunity

  • Seasonal or annual NOx trading control programs do not address the problem

  • Demand for electricity is increasing and the increase in the peak is growing faster than the base:

    • PJM Interconnection: consumer peak demand for electricity will rise ~ 1.6% annually over the next decade.

    • NE ISO: peak demand will rise ~2.4% annually.

    • NYISO: relies heavily on many combustion turbines to maintain NYC grid.

      →Reductions of NOx on peak days will provide significant ozone reduction benefit