Summary
CMS Energy Corporation, through its subsidiary Consumers Energy, reported a significant development on November 4, 2010, with an order from the Michigan Public Service Commission (MPSC) approving an increase in retail electric rates. This order authorizes an additional $145.7 million in annual revenue, based on a projected test year and a 10.7% rate of return on common equity, with the new rates effective November 5, 2010. Notably, Consumers Energy had previously self-implemented a rate increase of $150 million in July 2010. The MPSC's order requires a reduction of $4.25 million from this self-implemented amount and mandates a refund to customers for the difference between the self-implemented rates and the finally authorized rates, plus interest. The order also extends a pilot decoupling mechanism for another year, which adjusts rates based on weather-normalized sales performance. Additionally, the MPSC's decision addresses various other regulatory matters, including rate design, cost allocation, and the establishment of a trust for spent nuclear fuel disposal costs.
Key Highlights
- 1MPSC authorized an annual retail electric rate increase of $145.7 million for Consumers Energy.
- 2New rates, effective November 5, 2010, are based on a projected July 2010 - June 2011 test year.
- 3Consumers Energy previously self-implemented a $150 million rate increase in July 2010.
- 4The MPSC order requires a reduction of $4.25 million from the self-implemented rates and a customer refund with interest.
- 5A pilot decoupling mechanism, designed to adjust rates based on sales performance, was extended for another year.
- 6The order includes provisions on rate design, cost allocation, elimination of certain rate adjustment mechanisms (pension, post-employment benefits, uncollectibles), and a trust for nuclear fuel disposal costs.