Rocky Mountain to start using reusable enve..

Utility • Bills can be sent back to Rock Mountain in the same envelope they came in.

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Beginning this month, Rocky Mountain Power is sending out its bills to customers with reusable envelopes in an effort to be more green.

"Last year alone, we sent more than 16 million return envelopes to customers, yet only 5 million were used to return payments," said Karen Gilmore, Rocky Mountain Power vice president of customer service. "With reusable envelopes we're eliminating the need for a separate return envelope. This change has the potential to conserve up to 1 million pounds of wood, 3,200 trees and 3.7 million gallons of water and avoid nearly 1 million pounds of carbon emissions each year."

The utility, like others, still offers paperless electronic billing but this new initiative is for those who still prefer paper bills.

Rocky Mountain to start using reusable envelopes for bills