I’ve written before about the Air Quality Control Commission’s outrageous Regional Haze Implementation Plan. In particular, I objected to the plan’s treatment of two small coal fired power plants near Steamboat Springs, Hayden 1 and Hayden 2, because it mandates controls that are at least $100 million more expensive than what is required by the Environmental Protection Agency.
(For a Regional Haze primer, click here. In a nutshell, Regional Haze is unique among the provisions of the Clean Air Act for two reasons: (1) It is an aesthetic regulation meant to improve visibility at national parks, whereas other Clean Air Act provisions are meant to protect public health; and (2) it affords states—and not the EPA—primary authority, especially for power plants smaller than 750 megawatts.)
Back then, when I wrote those posts, I thought that the AQCC’s Hayden controls were egregious; however, I’ve since learned that they are almost certainly illegal. Under Colorado law (§25-7-105.1(1) C.R.S.), a State Implementation Plan cannot impose emissions controls that are more stringent than what the EPA requires. For Hayden 1 and Hayden 2, the AQCC mandated nitrogen oxides controls, known as Selective Catalytic Reduction. But in its Regional Haze guidance document, the EPA states, “We have not determined that Selective Catalytic Reduction is generally cost-effective” for smaller power plants (less than 750 megawatts capacity) like Hayden 1 and Hayden 2. (This quote is in the first paragraph of the first column of page 39136 of the link.)
To recap: (1) Colorado law forbids emissions controls more stringent than what the EPA requires; (2) the Regional Haze State Implementation Plan mandates ultra-expensive Selective Catalytic Reduction for Hayden 1 and 2 power plants; (3) the EPA says that Selective Catalytic Reduction controls are not cost effective for small power plants like Hayden 1 and 2; (4) therefore, the Regional Haze State Implementation Plan is likely in violation of Colorado statute.
The AQCC submitted this (likely illegal) Regional Haze State Implementation Plan in mid-January. Colorado statute allows lawmakers to request a review of any revision to the State Implementation Plan by the bi-cameral, bi-partisan Legislative Council. On February 11 Reps. Jim Kerr and Marsha Looper made such a request; on February 14, they were joined by Sens. Scott Renfroe, Kevin Lundberg, Shawn Mitchell, Keith King, Jean White, Ted Harvey, Mark Scheffel, and Kent Lambert. All Coloradans owe thanks to these legislators.
Last Friday, the Legislative Council held a hearing on the AQCC’s Regional Haze State Implementation Plan. The Council allowed lawmakers until April 4 to submit legislation to revise the Plan; if no such legislation is put forward, the Plan will be sent to the Environmental Protection Agency for final approval. The clock is ticking for a lawmaker to bring the Regional Haze State Implementation Plan in line with Colorado law, by forbidding ultra-expensive controls at Hayden 1 and 2. Otherwise, Xcel ratepayers will be on the hook for at least $100 million in unnecessary costs.
William Yeatman is an energy policy analyst at the Competitive Enterprise Institute.