Avoided cost utilized in solar pricing after decades of impacting conservation

This summer, Minnesota became the first state in the nation to adopt a value of solar (VOS) tariff. This methodology, in contrast with net metering for solar generation, has a 25-year bill credit schedule rather than simply mirroring the retail rate as it fluctuates over time. While factoring in avoided cost may be a new idea for solar, factoring in the value of avoided cost has been used to analyze energy efficiency programs for over 40 years.

How the historic decision to transform Xcel Energy’s electricity was made

Working directly with Xcel and with our “Clean Energy Organizations”, or CEO, partnership, Fresh Energy used for the first time in Minnesota the same utility inputs and modeling Xcel uses. We analyzed options for closing the Sherco 1 and 2 coal plants and replacing them with vast amounts of cost-effective energy efficiency, wind, and solar power. Our independent analysis demonstrated that Xcel’s cheapest course of action—and the lowest in carbon—was the retirement and replacement of these two units, which are the biggest sources of global warming pollution in the Upper Midwest. Xcel agreed with our analysis, and completely revised its 15-year plan to reflect those economic opportunities. Fresh Energy applauds the unanimous Minnesota Public Utilities Commission decision to modify and approve Xcel’s 15-year Resource Plan as the affordable, reliable, and clean path forward for Minnesota customers.