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 Antonich612-870-3461info@windustry.org

CONTACT:Mike Michaud651-380-3522MMICHAUD@HBCI.COM