Dive Brief:
- Rocky Mountain Power plans an early retirement in 2015 for its 172-megawatt Carbon Power Plant in Helper, Utah.
- The plant's physical location in a canyon makes it impossible to add filtration equipment needed to meet the Environmental Protection Agency's rules to control mercury emissions, the utility said.
- Built in 1954, it is the state's oldest coal facility.
Dive Insight:
Rocky Mountain Power will still be a predominantly coal-fired utility even after the Carbon plant closes. Coal provides 60% of its electricity generation, with natural gas providing about 12% and various renewables the rest.
