1 SMUD’s Small Business Summer Solutions Pilot: Behavioral response of small commercial customers...
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Transcript of 1 SMUD’s Small Business Summer Solutions Pilot: Behavioral response of small commercial customers...
1
SMUD’s Small Business Summer Solutions Pilot:
Behavioral response of small commercial customers to DR programs (with PCTs)
Karen Herter, Ph.D.Associate Director
Heschong Mahone Group
November 19, 2008
2
Project Overview
• Acknowledgements
• Demand Response Research Center (DRRC)
• Sacramento Municipal Utility District (SMUD)
• Schedule
September 2007 Market Report
October 2007 Focus Groups
Spring 2008 Recruitment & installation
June-Sept 2008 Field study
December 2008 Final Report
3
Research Overview
• Target: SMUD Small businesses <20 kW
• Goal: Quantify perception, behavior & load impact differences between…
• 2 DR program types– A. Critical Peak Pricing (CPP)
– B. Temperature Offset of 2 or 4 degrees
• 3 small business customer types– Offices
– Retail
– Restaurants
4
A. Critical Peak Pricing Option
• Discounted TOU rate + 12 CPP events
• Overall: Revenue Neutral for the summer
• PCTs offered for free, but not required
• PCTs can pre-cool and/or float during events (or not)
• Settings can be changed by customer at any time
• Bills showed change in bill relative to standard rate
5
Critical Peak Pricing Rate
Small Business Summer Solutions Rate
Price per kWh
Midnight Noon 4pm 7pm 10pm Midnight
8.52¢ (24% lower)
9.87¢ (12% lower)
13.11¢ (16% higher)
8.52¢ (24% lower)
9.87¢ (12% lower)
57.15¢ CRITICAL EVENTS (12 days)
For more info visit www.h-m-g.com/projects/SummerSolutions or call 916-962-7001
weekdays only
Standard GSN Rate: 11.27¢
6
B. Temperature Offset Option
• Payment ≈ CPP savings for similar AC actions
• $5 per month for 2-degree AC offset
• $10 per month for 4-degree AC offset
• PCTs required
• Can pre-cool
• Overrides not allowed (but technically feasible)
• No $$ incentive to reduce lighting, etc.
7
Participant Breakdown
CPP TOP2 TOP4 Total
Office 24 1 11 36
Retail 20 3 7 30
Restaurant 8 3 1 12
Total 52 7 19 78
8
Event Procedure
• Notifying participants
• Day before event
• Via email, text message and/or thermostat display
• Notifying thermostats
• Morning of event
• Event parameters to thermostat (via RDS) to schedule automated control strategy
Internet
FM Tower
RDS Sign
al
9
Twelve Event Days
Day Date Hi Temp Thu 6/26/2008 87.7 Thu 8/7/2008 91.9 Tue 8/25/2008 94.7 Wed 7/23/2008 95.3 Thu 7/24/2008 96.3 Fri 7/18/2008 96.7 Fri 9/5/2008 100.7 Fri 8/15/2008 102.3 Wed 8/13/2008 102.4 Fri 8/29/2008 103.8 Wed 7/9/2008 106.6 Tue 7/8/2008 106.7
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Satisfaction by Program Choice
Did the Summer Solutions program meet your expectations?
20% 80%
0%10%20%30%40%50%60%70%80%90%
100%
No, I'm extremelydisappointed
Almost, but notquite
Yes, more or less It surpassed myexpectations
2 Deg. Offset 4 Deg. Offset CPP
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Satisfaction by Business Type
Did the Summer Solutions program meet your expectations?
20% 80%
0%10%20%30%40%50%60%70%80%90%
100%
No, I'm extremelydisappointed
Almost, but notquite
Yes, more or less It surpassed myexpectations
Office Restaurant Retail
12
Cooling offsets by Program Choice
-5
-4
-3
-2
-1
0
1
2
3
4
5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Hour
Even
t Offs
et (d
eg F)
2-Degree4-DegreeCPP
13
Cooling offsets by Business Type
Event Offsets by Business Type
-8
-6
-4
-2
0
2
4
6
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Hour
Even
t Offs
et (d
eg F)
Office
Restaurant
Retail
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-$200
-$180
-$160
-$140
-$120
-$100
-$80
-$60
-$40
-$20
$0
$20
$40
Cha
nge
in b
ill fr
om s
tand
ard
rate
CPP Bills
Only four participants paid more on the CPP rate
Avg. % Savings = 5%
Max % Savings = 10%
Max % Increase = 14%
16
For more information
Contact Karen Herter at:[email protected](916) 962-7001 x32
-OR-
Read the PIER report due December 2008