In November 2014, the Minnesota Department of Commerce released an engineering study that concludes Minnesota can reliably integrate renewable energy to meet 40% of annual retail sales by 2028. This scenario would require $373 million in transmission investments beyond current transmission expansion and upgrade plans.
Study Scenarios: Key Assumptions and Costs
Renewable energy integration costs increase dramatically with the addition of new transmission lines. When compared to the baseline scenario, studies show that Minnesota could increase the RES from 28.5% to 40% of retail sales with transmission upgrades. Achieving an additional 10% of retail sales from renewable resources would require new transmission lines and would result in nearly a seven-fold increase in integration costs.
Minnesota Department of Commerce: Minnesota Renewable Energy Integration and Transmission Study: Final Report
This report is part of the Clean Tech & Sustainability Minute series. To view all featured Minutes, please click here.
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