Montana regulators approve overall $6.5m increase for NorthWestern’s electric utility operations

The increase is based on an overall 6.92% rate of return, which includes a 9.65% return on equity (ROE), excluding NorthWestern’s 10.0% ROE for its ownership interests in Colstrip Unit 4, a 4.26% cost of long-term debt, and based on a capital structure comprised of 50.62% long-term debt and 49.38% equity, the commission said

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