Tariffs (or rate books) are the legal documents that detail all our rates, fees and policies about how we charge for energy.
Download a convenient Gas & Electric Rate Schedule Summary for your home (PDF) or business (PDF).
For monthly gas quality data from which therm multipliers are derived, visit gastransport.xcelenergy.com/PSCO/Gas-Quality
Summary of Electric Rates as of 10-01-21 (PDF)
Summary of Electric Rates as of 06-01-21 (PDF)
Summary of Electric Rates as of 04-01-21 (PDF)
Summary of Electric Rates as of 03-01-21 (PDF)
Summary of Electric Rates as of 01-01-21 (PDF)
Summary of Electric Rates as of 10-01-20 (PDF)
Summary of Electric Rates as of 8-19-20 (PDF)
Summary of Electric Rates as of 6-1-20 (PDF)
Summary of Electric Rates as of 4-5-20 (PDF)
Summary of Electric Rates as of 4-1-20 (PDF)
Summary of Electric Rates as of 2-25-20 (PDF)
Summary of Electric Rates as of 1-1-20 (PDF)
Summary of Electric Rates as of 10-1-19 (PDF)
Summary of Electric Rates as of 8-1-19 (PDF)
Summary of Electric Rates as of 7-1-19 (PDF)
Summary of Electric Rates as of 10-1-18 (PDF)
Summary of Electric Rates as of 6-1-18 (PDF)
Summary of Electric Rates as of 5-1-2018 (PDF)
Summary of Electric Rates as of 4-1-2018 (PDF)
Summary of Electric Rates as of 1-1-2018 (PDF)
Summary of Electric Rates as of 10-1-2017 (PDF)
Summary of Gas Rates as of 01-01-22 (PDF)
Summary of Gas Rates as of 12-01-21 (PDF)
Summary of Gas Rates as of 10-01-21 (PDF)
Summary of Gas Rates as of 09-01-21 (PDF)
Summary of Gas Rates as of 07-01-21 (PDF)
Summary of Gas Rates as of 04-01-21 (PDF)
Summary of Gas Rates as of 1-1-2021 (PDF)
Summary of Gas Rates as of 10-1-2020 (PDF)
Summary of Gas Rates as of 7-1-2020 (PDF)
Summary of Gas Rates as of 4-5-2020 (PDF)
Summary of Gas Rates as of 4-1-2020 (PDF)
Summary of Gas Rates as of 3-1-2020 (PDF)
Summary of Gas Rates as of 1-1-2020 (PDF)
Summary of Gas Rates as of 10-1-19 (PDF)
Summary of Gas Rates as of 7-1-19 (PDF)
Summary of Gas Rates as of 6-1-19 (PDF)
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