PNM is appealing a mandate by the U.S. Environmental Protection Agency that the San Juan plant install one particular technology, selective catalytic reduction (SCR), to meet a federal visibility requirement. The State of New Mexico has approved a different technology, selective non-catalytic reduction (SNCR), that can meet that same federal requirement for about one-tenth the cost of EPA’s plan. Initial engineering estimates put the cost of EPA’s plan at about $750 million or more, while the state plan would cost about $77 million.
“Both technologies would improve visibility in regional parks and wilderness areas and represent progress toward meeting the state’s goal to restore visibility in those areas to a natural state by 2064, as required by the Clean Air Act,” Vincent-Collawn added. Read rest of story here: News New Mexico