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Using a Dispersed Strategy in Your Region
ByMike Michaud
Matrix Energy Solutions
Edited and Presented ByBrian Antonich
Windustry
What We Will Cover
Transmission and Distribution CBED Transmission Study, What did we learn? How to using Transmission Maps & Tables
TRANSMISSION & DISTRIBUTION LINES
ELECTRICAL TRANSMISSION AND DISTRIBUTION SYSTEM
TRANSMISSION LINE CHARACTERISTICS
Connects generation to load to bring power to load centers. (See FERC Seven Factor test).
Transfer power across state lines and across control regions.
115 kV and above Federally
regulated. Lower voltage can serve
electric customers and/or
wholesale power market.500 kV distribution line
DISTRIBUTION LINE CHARACTERISTICS
Voltages are < 100kV, typically at or below 34.5 kV.
Primarily bring electricity
to customers. Traditionally, power flows
into the line but not out. State regulated system.
12.5 kV distribution line
ELECTRICAL SUBSTATIONS
Transmission Planning ZonesTransmission Planning Zones
DISTRIBUTED GENERATION
Generation sited at or near load, “behind the meter.” Typically connected to the distribution system. Differing ownership
structures possible. State definition
is 10 MW and
under.
DISTRIBUTED RESOURCES
Includes distributed generation and “demand side” strategies such as conservation, efficiency, and load management.
DISPERSED GENERATION
“Stand alone” generators not at existing retail customer sites.
100 % of output injected into the grid. No size limits, current DOC study looking at
10-40 MW sizes. Can be connected to either distribution or
transmission lines.
Interconnection and Delivery Issues
Midwest ISO territory map
WEST CENTRAL CBED STUDY
1400 MW modeled without adding additional power lines
57 locations with generationStudy performed by CapX 2020 Utilities
WHAT THE C-BED STUDY LOOKED AT
Analyzed thermal line loading and voltage levels for 800 MW and 1400 MW of Dispersed Generation at 21 locations.
Generation used to reduce Minnesota natural gas power plant output.
Analyzed transmission system constraints and established costs for fixing thermal and voltage problems.
STUDY RESULTS
800 MW of Dispersed Generation $49 M in transmission fixes.
1400 MW of Dispersed Generation $ 97 Million in transmission fixes.
No major new power lines were needed.
HOW MUCH DISPERSED GENERATION CAN WE DO?
400 MW
*1400 MW
**1600 MW
**1040 MW
**950 MW
STATEWIDE DISPERSED GENERATION POTENTIAL
WEST CENTRAL ZONE
3585 MW
SOUTHWEST ZONE
1182 MW
SOUTHEAST ZONE
4000 MW
NORTHWEST ZONE
2602 MW
NORTHEAST ZONE
2383 MW
STATEWIDE TOTAL
13752 MW
**Theoretical generation potential based on preliminary study results
USING THE MAPS & TABLES
LIKELY SPOT?
TABLE FOR FINDING THEORETICAL GENERATION AT SUBSTATION
Northeast CBED STUDY
Maps and tables available at: www.c-bed.org/transmission.html
Distributed Wind Generation Study for Northeastern Colorado
Performed by: Wind Utility Consulting for the Colorado Governor’s Office of Energy Management and Conservation and the Department of Energy’s Wind Powering America program
Year: 2005 Location: Highline Electric
Association distribution grid NE Colorado
Results showed that 63 GE 1.5 MW wind turbines or 94.5 MW of wind could be incorporated into the distribution system
Shows Red Willow Substationwith 4 turbines at a maximum
distance of 5.5 miles from the substation.
DISPERSED GENERATION, A NEW PARADIGM FOR
RESOURCE DEVELOPMENT?
Iowa Lakes Community CollegeEstherville, Iowa1650 kW
University of Minnesota, MorrisMorris, Minnesota1650 kW
Moorhead Public ServiceMoorhead, Minnesota1500 kW
Matrix Energy Solutionsand
Windustry
ENABLING COMMUNITIES TO SUSTAINABLE ENERGY
CONTACT:Brian [email protected]
CONTACT:Mike [email protected]