[RenewableEnergyAcess.com] Colorado advocates for renewable energy fought a long and hard battle to secure a state requirement that utilities use at least a small percentage of renewable energy. After successive failures to enact a state Renewable Portfolio Standard through the legislature, proponents managed to succeed by putting the issue directly to the voters through a ballot initiative. Now, it appears the fight is back on over what amounts to potentially-ambiguous wording in the law, known as Amendment 37. According to the Rocky Mountain News, a discrepancy over the exact wording and application of the law is pitting Xcel Energy, the state’s largest utility, against environmental groups. Again. This time, Xcel Energy is interpreting the requirement for solar energy to mean the utility can have an average of 18 MW of solar over the four years between 2007 and 2010. Environmental groups say the utility should have at least 18 MW each year through 2010, at which point the requirement increases. Both groups have filed their comments with state regulators who will ultimately settle the discrepancy. For the full article, see the following link.