ForgeAsset / Utilities / Xcel Energy (Colorado)

Xcel Energy (Colorado) S-EV — EV fast-charging electricity cost

Xcel Energy CO S-EV is the filed rate schedule ForgeAsset models for DC fast-charging sites in Xcel Energy territory in Colorado. Energy prices at 12.6¢/kWh–25.1¢/kWh by time of day; the demand side bills $4.89/kW of monthly peak. For one reference Supercharger site held constant across the whole library, that works out to 28.6¢/kWh per dispensed kWh — rank 34 of 86 filed tariffs (1 = least expensive).

Modeled rates

Xcel's Colorado EV-specific rate for the Denver–Boulder Front Range: separately metered time-of-use energy with a distribution-only demand charge under $5 per kilowatt-month — no ratchet, no window. Figures fold the quarterly fuel adjustment, six fixed per-kWh riders, the percentage bill riders, and Colorado's 2.9% electricity sales tax; the all-in peak-to-off-peak spread runs about two to one. A rate-case order expected in late August 2026 moves these rates, and the library re-derives at the order. Denver's home-rule electricity tax varies by city and is not folded. A fixed monthly service charge is not modeled.

Source: Xcel Energy (Colorado) filed rate schedule. Rates are digit-verified against the utility's own filed sheets and update within two weeks of any revision; derivations are on the methodology page.

What the reference site pays here

Reference site: 8 Tesla V4 stalls at 235 kWh/stall/day (57,183 kWh dispensed per month), a 150kW per-stall demand assumption, the model's default time-of-use mix, and a 12% loss gross-up — identical to the full utility ranking, where this tariff sits at position 34 of 86.

The rest of the Colorado picture

The tariff is one layer. State taxes, incentives, clean-fuels programs, and the charging market shape the remainder — Tesla Supercharger ROI in Colorado covers them, and the US Supercharger Economics Map shows every US Supercharger over utility territories colored by this same effective-cost derivation.

Xcel Energy (Colorado) S-EV — questions

What does Xcel Energy (Colorado) charge for energy on S-EV?

The modeled rates are 12.6¢/kWh–25.1¢/kWh by time of day. At the model's default time-of-use mix (30% peak, 45% off-peak, 25% super-off-peak) that blends to 16.4¢/kWh.

Does S-EV carry a demand charge?

Yes: $4.89/kW of monthly peak. For a reference 8-stall site at 150 kW per stall that comes to about $5,865 per month.

What does electricity cost per kWh dispensed on this tariff?

For the reference site — 8 Tesla V4 stalls dispensing 235 kWh per stall per day, with a 12% loss gross-up — the all-in utility cost works out to 28.6¢/kWh per dispensed kWh, rank 34 of 86 tariffs in the library (1 = least expensive).

ForgeAsset is software, not investment, tax, or legal advice — outputs are model estimates from your inputs, not guarantees. Rates current as of research; verify current terms with the utility's filed schedule before committing capital.