Does Real-time Pricing Deliver Demand Response?. Charles Goldman Lawrence Berkeley National Laboratory [email protected] New England Restructuring Roundtable October 28, 2005. Policy Questions. What evidence is there that RTP delivers demand response (DR)?
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Number of Utilities in Each State withRTP as Optional Tariff (2003)
Public Service of Oklahoma
Com Ed (Rate RHEP)
Jersey Central Power & Light
Florida Power & Light
Kansas CityPower & Light
Otter Tail Power(Option 1)
Pacific Gas & Electric
Maximum Load Reduction (% of Utility's Peak)
DR Program Maximum Load Reductions
Percent of Total System (State or Utility) Peak
“A Survey of Utility Experience with Real Time Pricing”
G. Barbose, C. Goldman and B. Neenan. LBNL-54238, December 2004.
“Real Time Pricing as Default or Optional Service for C&I Customers: A Comparative Analysis of Eight Case Studies”
G. Barbose, C. Goldman, R. Bharvirkar, N. Hopper, M. Ting and B. Neenan. LBNL-57661, August 2005.
“Customer Strategies for Responding to Day-Ahead Market Hourly Electricity Pricing”
C. Goldman, N. Hopper R. Bharvirkar, B. Neenan, R. Boisvert, P. Cappers, D. Pratt, and K. Butkins. LBNL-57128. August 2005.
Reports available at: http://eetd.lbl.gov/ea/EMS/drlm-pubs.html
• Customer sees hourly prices for their marginal usage
Average Peak to Off-Peak Price Ratio
Avg. Pk and Off-Pk Price ($/MWh)
$77/$51Response to Day-Ahead Prices: NMPC Aggregate Price Response Curve
119 SC-3A customers would reduce their load by about 50 MW, or 11% of their peak demand (~500 MW), at high prices
*On-Peak defined as 2pm-5pm on weekdays