Xcel Energy collects the tax for the city through its monthly customer utility billing. (Voluntary purchases of utility-provided wind power are exempt from the tax.) The tax rate, expiring March 31, 2018, is as follows:
- $0.0049 per kilowatt-hour (kWh) for residential customers,
- $0.0009 per kWh for commercial customers, and
- $0.0003 per kWh for industrial customers.