ForgeAsset / Utilities / Rhode Island Energy

Rhode Island Energy G-32 — EV fast-charging electricity cost

Rhode Island Energy G-32 is the filed rate schedule ForgeAsset models for DC fast-charging sites in Rhode Island Energy territory in Rhode Island. Energy prices at 19.5¢/kWh flat; the demand side bills $16.30/kW of monthly peak. For one reference Supercharger site held constant across the whole library, that works out to 56.1¢/kWh per dispensed kWh — rank 68 of 86 filed tariffs (1 = least expensive).

Modeled rates

Rhode Island Energy's mandatory large-demand rate for sites at or above 200 kilowatts, covering roughly 99% of the state including every verified Rhode Island Supercharger metro. No fixed supply price is filed at this size: Last Resort Service for the industrial group bills monthly market prices filed three months at a time, and the energy figure folds the trailing twelve-month average of those filed prices with the delivery stack and the 4% gross earnings tax. Filed monthly supply prices in the averaging window ranged from about 10 to 18 cents per kilowatt-hour, so a site's actual supply cost follows the market or a competitive supply contract rather than this average. The demand figure folds the distribution and transmission per-kilowatt charges under a single seasonal weekday peak window with an inert ratchet. The utility's DC fast-charging discount pilot closed to enrollment in 2021, and the pending rate case — the first under PPL ownership — litigates an EV-specific rate whose final order re-derives this row.

No fixed supply price is filed for this customer class — the utility bills supply at market prices that change monthly. The modeled energy figure folds the trailing twelve-month average of the filed monthly prices, an estimate rather than a filed rate; a site's actual supply cost follows the market or a competitive supply contract, and the wizard's energy-rate fields accept a contracted rate in place of the average. Rhode Island Energy places sites of this size on Rate G-32, whose Last Resort Service supply is filed as monthly market prices three months at a time; the modeled average spans October 2025 through September 2026, a window whose filed prices ranged from about 10 to 18 cents per kilowatt-hour. The utility's DC fast-charging discount pilot closed to enrollment in 2021, and the pending rate case litigates an EV-specific rate.

Source: Rhode Island 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 68 of 86.

The rest of the Rhode Island picture

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

Rhode Island Energy G-32 — questions

What does Rhode Island Energy charge for energy on G-32?

The modeled rates are 19.5¢/kWh flat. At the model's default time-of-use mix (30% peak, 45% off-peak, 25% super-off-peak) that blends to 19.5¢/kWh.

Does G-32 carry a demand charge?

Yes: $16.30/kW of monthly peak. For a reference 8-stall site at 150 kW per stall that comes to about $19,562 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 56.1¢/kWh per dispensed kWh, rank 68 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.