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California Energy Commission - Public Interest Energy Research Program
Demand Response Research CenterResearch Overview
Load Management Informational and Rulemaking Proceedings
March 3, 2008
Mary Ann Piette
Lawrence Berkeley National Laboratory
Roger Levy
Levy Associates
California Energy Commission - Public Interest Energy Research Program
Presentation Outline
Automating Demand ResponseBehaviorDemand Response ValueDynamic Tariffs
California Energy Commission - Public Interest Energy Research Program
Automation Goals and Definition
Research GoalsCost - Develop low-cost, automation infrastructure to improve DR capability in CaliforniaTechnology - Evaluate “readiness” of buildings to receive signalsCapability - Evaluate capability of control strategies for current and future buildings
AutoDR Definition - Fully automated signal for end-use controlSignaling – Continuous, secure, reliable, 2-way communication with listen and acknowledge signalsIndustry Standards - Open, interoperable standard control and communications to integrate with both common EMCS and other end-use devices that can receive a relay or similar signals (such XML)Timing of Notification - Day ahead and day of signals are provided to facilitate a diverse set of end-use strategies
California Energy Commission - Public Interest Energy Research Program
Manual DR - Common Practice
California Energy Commission - Public Interest Energy Research Program
DRAS Clients – 1. Software only (Smart)2. Software & Hardware
(Simple)
DR Automation Server and Client
4 Energy Management Control System (EMCS) and other systems carry out shed based on pre-programmed strategies.
3 Polling clients request price level and event data every minute
2 Price-Level and DR event signals sent on DRAS
Utility sends DR notification to DRAS1
California Energy Commission - Public Interest Energy Research Program
Martinez, CA Office Building Electricity Use with & without AutoDR June 21, 2006
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Wh
ole
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ild
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W]
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OA
T (
Ou
tsid
e A
ir T
em
pe
ratu
re)
Actual Building Electricity Use with DR Estimated Building Electricity Use without DR OAT
ModeratePrice
HighPrice
NormalPrice
NormalPrice
Price Change Signal Sent
Building automatically reduces electricity use
California Energy Commission - Public Interest Energy Research Program
Status of Automated DR Deployment
2006 2007*
Total Participants
13 CPP
37 CPP
53 DBP
62 CBP
152 Total
Total Base load 8 MW 80 MW
Total Peak Load Reduced
1 MW 25 MW
Average Peak Load Reduction
13 % 34%
Program Participants by Industry Type
4.8%
30.2%
4.8%
6.3%1.6%
47.6%
3.2% 1.6%
Biotechnology
Data Center
High Tech
Industrial Process
Municipal Government
Museum
Retail
School District
DR Programs under AutoDRCPP – Critical Peak PricingDBP – Demand BiddingCBP – Capacity Bidding
California Energy Commission - Public Interest Energy Research Program
Automation by Sector
Programmable Communicating
Thermostat
Demand Response Automation Client
Demand Response Automation Client
InternetInternet
California Energy Commission - Public Interest Energy Research Program
Common Cooling Load DR StrategiesResults from 2008 PG&E Auto-DR
68.0
69.0
70.0
71.0
72.0
73.0
74.0
75.0
76.0
77.0
78.0
79.0
80.0
81.0
82.0
Customer
Tem
pe
ratu
re (
F)
Normal
Moderate
High
CPPAve. temp. increase (mod): 2.75 FAve. temp. increase (high): 1.88 FDBPAve. temp. increase: 2.3 F
DBP CPP one-level GTACPP two-level GTA
Re
tail
Mu
seum
Offic
e 1
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tail
1A
Offic
e 3
Gove
rnm
ent
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Re
tail
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Sch
oo
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b/O
ffic
e2
Gove
rnm
ent
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Gove
rnm
ent
3
Gove
rnm
ent
4
Re
tail
3
Offic
e 4
La
b/O
ffic
e
Av
era
ge
Av
era
ge
Av
era
ge
California Energy Commission - Public Interest Energy Research Program
Next Steps – Auto-DR and Related Research Complete final draft of Open DR Automation Server and
client specification (May 2008) Facilitate implementation of open standards in state and
national DR efforts Explore links to Building Codes (Title 24) Ensure compliance of Global Temperature Adjustment
in 2008 Building Code (Title 24) Explore continuous energy minimization, energy
management systems, and building codes
California Energy Commission - Public Interest Energy Research Program
Behavior Research
DR is a behaviorally driven systemBehavior research explores “why and
the how” not “who and the what”Current projects – residential and small
commercial DR rates and technologiesField tests in summer 2008