Updated: March 2026
Commercial rate guide for Black Hills — Colorado (southern and eastern), Wyoming (Cheyenne and eastern), South Dakota (Black Hills region), and Montana (limited gas service). Provides both electric and natural gas across multiple states.
Commercial general service and commercial demand rate schedules varying by state. Gas rates under separate tariffs by jurisdiction. Demand charges above 25 kW. Fuel and purchased power cost adjustments.
Rising
6.3% electric increase in Colorado effective January 2026; 5.1% gas increase in
6.3% electric increase in Colorado effective January 2026; 5.1% gas increase in South Dakota effective March 2026; varied adjustments in other states
Property managers with Black Hills accounts frequently encounter these billing challenges:
Multi-state rate complexity for portfolios spanning four states
Gas and electric combined billing on separate rate structures
Winter demand peaks from heating loads in mountain communities
Fuel cost adjustment variability across jurisdictions
Demand charges with seasonal differentials by state
The utility is the sole provider in this service territory.
All Black Hills Energy service territories are in regulated markets. Vertically integrated operations regulated by individual state commissions (CO PUC, WY PSC, SD PUC, MT PSC). No competitive supply choice.
Colorado clean energy plan compliance cost recovery under CO PUC review; gas system integrity surcharge petition pending in South Dakota
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