MGE's Electricity Sources

MGE generates, purchases and distributes electricity to nearly 149,000 customers.

2005

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2016

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2016 Electricity Sources

Since 2005, MGE has increased its renewable energy resources and decreased its reliance on coal while meeting its obligation to deliver reliable energy to the Madison area. Under our Energy 2030 framework, we will transition to supplying 30% of retail electric sales with renewable resources by 2030. In addition, we will reduce carbon emissions by 40% from 2005 levels by 2030. A nationwide leader in electric reliability, MGE continues to work toward a more sustainable energy supply mix using the best, most cost-effective technologies as they become available.

Renewable

  • Wisconsin's Renewable Portfolio Standard (RPS) requires utilities to acquire a portion of their electricity from renewable energy sources. This standard represents approximately 8% of our total electric mix.
  • An additional approximate 3% represents voluntary purchases by customers through our Green Power Tomorrow and Shared Solar programs.
  • The remaining 2% represents early adoption of renewable sources.

Purchased Power

  • MGE buys electricity on the open market primarily through the Midcontinent Independent System Operator and through long-term purchase power agreements.
  • Fuel sources vary.

Gas/Oil

  • MGE owns two natural gas-fired power plants in the Madison area—West Campus Cogeneration Facility and Blount Generating Station, which discontinued coal in 2011 and switched to only natural gas.
  • MGE's natural gas and diesel-fueled combustion turbines are used infrequently, mainly to meet peak power demand.

Coal

  • MGE has no controlling interest in coal-fired generation and has no plans for additional coal resources.
  • MGE owns 8.3% of the Elm Road Generating Station in Oak Creek that has state-of-the-art emission controls.
  • MGE owns 20.4% of the Columbia Energy Center, which has ongoing major projects to update its emission control technology. MGE is in the process of reducing its ownership share in the Columbia Energy Center in Portage.