ForgeAsset / Utilities / Puget Sound Energy

Puget Sound Energy Schedule 26 — EV fast-charging electricity cost

Puget Sound Energy Sch 26 is the filed rate schedule ForgeAsset models for DC fast-charging sites in Puget Sound Energy territory in Washington. Energy prices at 11.5¢/kWh flat; the demand side bills $14.13/kW of monthly peak. For one reference Supercharger site held constant across the whole library, that works out to 42.5¢/kWh per dispensed kWh — rank 53 of 86 filed tariffs (1 = least expensive).

Modeled rates

Puget Sound Energy's large secondary-service rate for the Seattle-area suburbs: flat energy after the full power-cost, carbon, conservation, and decoupling adjustment stack folds in, against a light demand charge on the monthly peak with no ratchet at secondary voltage. Washington embeds its utility tax in filed rates and levies no sales tax on electricity, so the folded figures are the modeled rates. Washington's business & occupation tax on charging revenue and its sales tax on installation labor are carried separately in the state tax profile. A three-year rate case filed February 2026 re-bases these figures around early 2027, and several adjustment riders reset each May.

The utility files an EV-specific rate or pilot that this model does not assume, so the modeled electricity cost reflects the standard schedule. A site that qualified for and enrolled in that program would see a lower demand line than the one modeled here. Puget Sound Energy files no EV rate of its own. Washington's only EV delivery discount is Tacoma Power's Schedule FC, which is closed and sunsets in 2031.

Source: Puget Sound Energy 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 53 of 86.

The rest of the Washington picture

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

Puget Sound Energy Schedule 26 — questions

What does Puget Sound Energy charge for energy on Schedule 26?

The modeled rates are 11.5¢/kWh flat. At the model's default time-of-use mix (30% peak, 45% off-peak, 25% super-off-peak) that blends to 11.5¢/kWh.

Does Schedule 26 carry a demand charge?

Yes: $14.13/kW of monthly peak. For a reference 8-stall site at 150 kW per stall that comes to about $16,950 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 42.5¢/kWh per dispensed kWh, rank 53 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.