Rocky Mountain Power has reduced its request to boost electricity rates for its Wyoming customers.

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Rock Mountain Power filed papers with the Wyoming Public Service Commission last week asking state regulators to approve an $80-million dollar increase in its current rates. That's down from an increase of nearly $98 million that the company requested in November.

The Casper Star-Tribune reports that the company told regulators that changes in federal tax law, reduced power costs, and a cap on the costs companies can pass along to its customers are the reasons for the the change.

The State's Office of Consumer Advocates had urged the commission to reduce the rate request to just under $68 million.

Rocky Mountain Power serves 134,000 customers in Wyoming.