Transcript Document

Utility Programs – What
Has Been Learned and
Where Are We Going
U.S. Demand Response
Coordinating Committee
National Town Meeting on Demand
Response
June 2 & 3, 2008
Paul J Lehman
Xcel Energy Overview
Northern States Power
Company- Minnesota
Northern States Power
Company- Wisconsin
Public Service
Company of Colorado
Southwestern
Public Service
Gas Customers
Electric Customers
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1.8 M
3.3 M
Demand Response Programs
Number of Programs by Region
 MRO - 7
 WECC - 2
 SPP - 3
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Demand Response Programs
Number of Customers by Region
 MRO – 373,561
 WECC – 87,858
 SPP - 10
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Demand Response Programs
Potential Demand Reduction by Region
 MRO – 1006 MW (11%)
 WECC – 228 MW (3%)
 SPP – 57 MW (1%)
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Demand Response Programs
Demand Reduction by Customer Type
(MW)
600
500
400
MRO
300
WECC
200
SPP
100
0
Res
C&I
WS
7
TPT
Demand Response Programs
Demand Reduction by Function
(MW)
1000
800
600
MRO
WECC
400
SPP
200
0
Rel
Econ
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Types of
Demand Response Control
 Autonomous – Happens all by itself. Self-
sensing of very local conditions. Sensors
react with no communications.
 Resource Initiated – DR polls a site/bulletin
board for what information is desired.
 Bulk Dispatched – System operator sends
broad message to DR and DR responds.
 Precision Dispatch – Full bi-directional
communications. Integrate what is going
on at DR and then decisions are made on
what performance of DR is desired.
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Demand Response Programs
Demand Reduction by Control Type
(MW)
1000
800
600
MRO
WECC
400
SPP
200
0
Auto
RI
BD
10
PD
Where Are We Going
Xcel Energy’s Smart Grid City
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What makes a grid “smart”?
 More renewable energy
options
 Adding sensors and
high-speed
communications
 Optimization of the entire
grid and the energy
pathway
 Self-balancing, selfmonitoring system
 Allows customers to
interact with the utility
 Wired for real-time
analytics, pricing and
decision making
Bringing the power grid into the digital age.
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Xcel Energy - Smart Grid
vision & approach
 First to present a comprehensive solution
 Densest concentration of new technologies
 Encompassing the entire power pathway
 Fuel source to end-use consumer
 Collaborative model
 Shared risk, shared rewards
 Focus on environmental aspects
 Uniquely positions Xcel Energy
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Smart Grid City -
Boulder, Colo.
“An international showcase of smart grid
possibilities… a comprehensive
demonstration of an intelligent grid
community.”
 Test technology
 Integrate smart grid
portfolio of projects
 Prove benefits and
possibilities
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Expected Benefits
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Better manage your energy use and save money
More energy efficiency/conservation options
Choices for smart appliances and smart in-home controls
Reduced carbon footprint
More clean, green power
Reduced dependence on foreign oil
New energy storage technology
Address climate change concerns
Enhanced grid reliability and performance
Strengthens national grid security
Shared-risk business model to fund improvements and
modernize aging assets
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Learn more at:
xcelenergy.com/smartgrid
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