Consumer and environmental groups on Thursday proposed a new billing method for Xcel Energy to encourage its Minnesota residential electric customers to conserve energy.
The plan, similar to one in place at Duluth-based Minnesota Power, would offer lower rates for those who use average or below-average kilowatt hours. Big power users would end up paying more — unless they find ways to cut their energy use.
"It rewards customers who have already invested in energy efficiency or engage in other conservation measures," said Will Nissen, a policy associate at Fresh Energy, a St. Paul nonprofit group that joined with others to propose the plan to the Minnesota Public Utilities Commission.
Advocates said it's long overdue because a 1983 Minnesota law requires the commission to set reasonable rates that encourage conservation. Environmental groups support the plan as another step to reduce greenhouse gases and other smokestack pollution from power plants.
Xcel spokeswoman Mary Sandok said the Minneapolis-based utility is reviewing the proposal and had no immediate comment. Xcel already offers such rates in Colorado.
Conservation rates would affect about 1 million residential electric customers, but it's up to the PUC whether and when the rates would take effect. Commercial and industrial customers are not included in the proposal.
It is being proposed now because Xcel has pending before the commission a request for a 10.4 percent, or $291 million, electric rate increase over two years. An interim 4.6-percent rate hike, subject to refund, took effect in January, but the final rate won't be set until next year. Public meetings on the rate case are scheduled later this month.
Conservation-based electric prices are called "inclining block rates" or "tiered rates" because the charge for power increases with each additional block of energy used. The plan proposed Thursday has four blocks, or tiers, with summer kilowatt-hour pricing that starts at a low 6.1 cents and rises to a pricey 12.7 cents. A kilowatt is 1,000 watts.