ForgeAsset / Utilities / Austin Energy

Austin Energy GS ≥300 kW — EV fast-charging electricity cost

Austin Energy ≥300 kW is the filed rate schedule ForgeAsset models for DC fast-charging sites in Austin Energy territory in Texas. Energy prices at 7.3¢/kWh flat; the demand side bills $17.63/kW of monthly peak. For one reference Supercharger site held constant across the whole library, that works out to 45.1¢/kWh per dispensed kWh — rank 57 of 86 filed tariffs (1 = least expensive).

Modeled rates

Flat (non-time-differentiated) municipal schedule — the three TOU rates carry the same bundled value. Demand is billed per kW of the month's 15-minute peak, any hour, with no ratchet clause. Rates fold Austin Energy's power supply, community benefit, and regulatory charges plus the 8.25% Texas sales tax on commercial electricity. Coverage is the Austin Energy service area only: deregulated ERCOT territory (Dallas, Houston) bills transmission on coincident peaks the model cannot express, and is not offered.

The filed rate book for this territory records no EV-specific commercial rate, so the modeled cost is the standard schedule. Demand follows the model's conservative convention — 150 kW per stall billed every month, the worst-case coincident peak — so a site whose metered peak runs below that would see a lower demand line.

Source: Austin 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 57 of 86.

The rest of the Texas picture

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

Austin Energy GS ≥300 kW — questions

What does Austin Energy charge for energy on GS ≥300 kW?

The modeled rates are 7.3¢/kWh flat. At the model's default time-of-use mix (30% peak, 45% off-peak, 25% super-off-peak) that blends to 7.3¢/kWh.

Does GS ≥300 kW carry a demand charge?

Yes: $17.63/kW of monthly peak. For a reference 8-stall site at 150 kW per stall that comes to about $21,161 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 45.1¢/kWh per dispensed kWh, rank 57 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.