Steven Braithwait
Christensen Associates Energy Consulting
September 28, 2010
Voluntary Critical-Peak Pricing (CPP) rates
offered since 2005
  Transition to default CPP
 
  SDG&E in 2008; SCE in fall 2009
 
CA Energy Consulting has conducted
statewide load impact evaluations for 2006
through 2009
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September 2010
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PG&E (8 MW)
SCE (25 MW)
SDG&E (23 MW)
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 
A majority of CPP load impacts come from a
small share of customers
  PG&E: 64% of LI from top 5% of customers
  SCE: 61% of LI from top 6.5% of customers
  SDG&E: 72% of LI from top 4.6% of customers
 
Default vs. voluntary load impacts - SDGE
  Controlling for industry group, % load impacts for
newly defaulted customers are very similar to those
of formerly voluntary customers
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September 2010
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