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Electric Vehicle Charging

Laura Williams

Madison Gas and Electric Company

October 4, 2012

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Vehicle Charging Activities

• MGE network of public charging stations— 26 charging stations at 16 locations

— 19 of 26 were co-funded by US DOE Stimulus Grant

• Monitoring charging patterns— At public stations

— At home

• Collecting driver attitudes/perceptions

• Testing pricing structures for vehicle charging

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MGE Charging Stations

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5

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MGE Charging Station

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Charging Station Use

Aldo Leopold1% Fitchburg Library

3%Greenway Station

7%

Henry Vilas Zoo10%

Madison College8%

MGE Main Office15%

Monona Community Center3%

Overture Ramp5%

Pinnacle5%

Princeton Club East10%

Lake St. Ramp2%

Willy Street East9%

Willy Street West7%

Percent of Total Sessions at Each Station

Hy-Vee10%

Madison Public Library, Monroe St.

2%

Terrace Ave., Middleton3%

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MGE Station Use*

Stations Sessions kWh Unique Users

kWh/Session

Total for 26 stations 1,897 8,473 106 4.5

*January 1 through September 2012

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Next Steps

• Continue to gather and analyze data

• Implement at-home charging rates test

• Recommend and implement rates— At-home charging

— Public station charging

• Provide customer service for PHEV stakeholders

— residential and business customers

— Vehicle dealerships, charging infrastructure providers

— Permitting agencies, local units of government

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Thank You

lwilliams@mge.com

608-252-7131

www.mge.com/ev