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EV Chargers × United Power

Charging an EV at Home on United Power

United Power is one of the few Colorado utilities that still pays you to wire a home EV charger — up to $500 for the circuit, $1,000 if you join United EV, plus $500 toward a panel upgrade, while grant funds last. The catch is the all-day demand charge: how fast you charge matters as much as when.

Good fit — real wiring rebates while funds last; manage charger amperage to protect your demand charge.
01

Watch the charger’s amperage

United Power’s demand charge ($4.55/kW in 2026) uses your highest 15 minutes any time of day. A 48-amp charger draws about 11.5 kW; if that overlaps with the dryer and oven, the month’s peak jumps. Setting the charger to 24 or 32 amps overnight still fills most commutes and keeps the peak lower.

On the Time of Use rate, charging off-peak costs $0.0672/kWh versus $0.1880 from 5–9 p.m. Monday–Saturday, so schedule the car for overnight.

02

Rebates, and which path fits you

The standard wiring rebate covers the invoice up to $250 (under $1,200) or $500 ($1,200 or more), and the panel-upgrade rebate is $500; United EV members get $500 or $1,000 for wiring instead. United EV supplies its own ChargePoint unit on a monthly fee, so it’s a different path from buying a Tesla Wall Connector or Enphase IQ EV Charger from us.

Our typical Level 2 install is about $2,500–$3,000 before those rebates. The federal §30C charger credit ended June 30, 2026.

Utility type

Electric cooperative

Wholesale: Guzman Energy (15-year contract from May 2024, about one-third of supply) plus its own and contracted resources; left Tri-State May 1, 2024

How exports are credited

Exports banked 1:1 as kWh credits

System size limit

≤200% of annual usage; standard process covers inverter-based systems up to 25 kW

Net metering, in plain English

Excess kWh roll into a net-meter bank month to month and are drawn down before energy charges apply. Each March the bank is settled to zero and the balance paid at the current wholesale energy rate (April–March year). Systems up to 25 kW inverter-based may not exceed 200% of the location’s annual usage. The fixed charge is always billed.

Time-of-use: As of Jan. 1, 2026: standard residential (R1) is $22.00/month, $0.1184/kWh and $4.55/kW demand on the highest 15-minute interval any time of day. The optional Time of Use rate (RTD1) charges $0.1880/kWh on-peak (5–9 p.m. Monday–Saturday) and $0.0672/kWh off-peak, with the same $4.55/kW demand charge. The on-peak window shrank from 2–10 p.m. to 5–9 p.m. on Jan. 1, 2026.

Sources & dated facts

  • Under C.R.S. 40-9.5-118, a Colorado co-op must net-meter residential systems up to at least 10 kW (25 kW for businesses), roll monthly surplus kWh forward at a one-to-one ratio, and settle the year-end surplus within 60 days.As of Sep 23, 2026
  • United Power net meter banks roll over monthly until March, when all banks are settled to zero and paid at the current wholesale energy rate.As of Sep 23, 2026 · source
  • System generation cannot exceed 200% of the location’s annual usage (inverter-based facilities up to 25 kW).As of Sep 23, 2026 · source
  • United Power does not offer a rebate for new solar or storage system installations.As of Sep 23, 2026 · source
  • Batteries require an interconnection application and signed Terms & Conditions, and members are directed to review NFPA 855 with their contractor.As of Sep 23, 2026 · source
  • United Power’s withdrawal from Tri-State became effective May 1, 2024; Guzman Energy supplies roughly one-third of its needs under a 15-year fixed-price contract.As of Sep 23, 2026 · source

FAQ

Questions we hear

How much is United Power’s EV charger rebate?

For wiring: up to $250 on invoices under $1,200 or up to $500 on invoices of $1,200+, and $500/$1,000 if you enroll in United EV. A separate $500 rebate helps with a panel upgrade. Applications run through June 30, 2027 or until funds run out.

Can I combine United Power’s EV rebates?

United Power says the programs can’t be combined at the same service location, so pick the path that pays more for your install.

Will a Level 2 charger raise my United Power demand charge?

It can. The demand charge is set by your highest 15-minute interval any time of day, so charging at full power alongside other big appliances raises it. Lower amperage overnight avoids most of that.

How soon do I need to file for the rebate?

United EV participants must apply within 90 days of installation, with an itemized invoice and photos. Rebates of $600 or more require a W-9.

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