Mentioned in https://www.thebignewsletter.com/p/monopoly-round-up-the-big...
"Excellent news in Maine on the utility regulation front. Central Maine Power, owned by Spanish multi-national Iberdrola, must open up its books and explain why it is demanding a return on equity of 9.8%. Its parent company’s annual financial report for 2025 approximated the cost of capital at “6.26% for its U.S. electric and gas assets, which include Central Maine Power.” That’s a big deal, because it is the first time a regulator is actually able to see the real way that utilities calculate their costs. Nearly every utility in America gets a 9-11% return on equity, cutting that to near 6% would be earth-shaking in lots of positive ways."