Colorado · Investor Owned · serves 344 ZIP codes
Public Service Co of Colorado rate plans
2 residential plans are currently open to new customers that we can price side by side. Some charge different prices depending on the hour — which is where most of the savings hide.
Looking for when the expensive hours are? Public Service Co of Colorado’s peak hours, plan by plan →
What does Public Service Co of Colorado cost at a normal month’s usage?
A household using 1,000 kWh a month pays about $2,055 a year on the cheapest of the 3 plans we can price here — Residential Service (Schedule R) — and $2,160 on the priciest. Same house, same wires.
| A month of | Cheapest, a year | On which plan | Priciest |
|---|---|---|---|
| 500 kWh | $1,077 | Residential Service (Schedule R) | $1,129 |
| 1,000 kWh | $2,055 | Residential Service (Schedule R) | $2,160 |
| 2,000 kWh | $4,012 | Residential Service (Schedule R) | $4,221 |
The same plan is cheapest at every level of use here, so the answer does not turn on how much you use. Estimates from the filed tariff, priced hour by hour on a household with central air — not a quote.
How much does the plan you pick actually matter here?
Run the same three-bedroom house with central air through every plan Public Service Co of Colorado files, and the bill lands anywhere between $1,639 and $1,721 a year. That $82 spread is not a difference in electricity — it is the same kilowatt-hours, from the same wires, priced under different rules. Nobody sends you a letter when you are on the wrong side of it.
1 of these 2 plans price by the hour. Those are the ones where moving laundry, dishes, or car charging into the cheap window changes the bill; on the rest, the clock is irrelevant and only the total matters. Which camp you belong in is the first question worth settling, because it decides whether shifting your day is worth anything at all.
How Public Service Co of Colorado compares across Colorado
Run the same three-bedroom house with central air through its default plan at each of the 3 Colorado utilities we cover, and Public Service Co of Colorado comes in 2nd cheapest at about $1,639 a year; the state median is $1,639. The range runs from $1,433 at City of Colorado Springs to $1,875 at San Miguel Power Assn, and since the utility is set by the address, the part of that gap you can act on is the plan, not the company.
The other two households tell the same story in different sizes: a small apartment pays about $884 here against a state median of $884, and the same house with an electric car charging overnight about $2,228 against $2,228. Effective rate, fixed charge included, is 17.3¢ per kilowatt-hour for the family home.
Inside Public Service Co of Colorado itself, the gap between its cheapest and dearest plan for that house is $82 a year — less than the $442 between Colorado's cheapest and dearest utilities. Here the address decides most of the bill; the plan decides the rest.
Every Colorado utility we cover, priced for the same three households →
Which plan would cost you least?
No bill upload, no sign-up. Tell us roughly what a month costs you and what runs on electricity — we price every plan against the same household and show you the gap.
That adds up to 9,802 kWh a year. Compare it to the total on your bill and adjust until it’s close.
Same usage, different plan
$1,204a year
That is the gap between the cheapest plan you could be on — Residential Demand - Time Differentiated Rates (Schedule RD-TDR) — and the priciest. Not by using less power. By being billed differently for the same power.
| Plan | Per year | Vs best |
|---|---|---|
| Residential Demand - Time Differentiated Rates (Schedule RD-TDR)One rate, every hour of the year. | $559 | — |
| Residential Demand Service (Schedule RD)One rate, every hour of the year. | $798 | +$238 |
| Residential Service (Schedule R)The hour never matters here — only the season. Rates peak June–September. | $1,679 | +$1,120 |
| Residential General Service Opt-Out (Schedule R-OO)The hour never matters here — only the season. Rates peak June–September. | $1,699 | +$1,140 |
| Residential Energy Time Of Use (Schedule RE-TOU)Peak hits 5pm–9pm every day, all year. | $1,763 | +$1,204 |
An estimate, not a quote. Supply charges move month to month, and your real usage pattern is not exactly this one. What it does show reliably is the gap between plans — both are priced off the same assumptions.
Before you switch anything
- What is a time-of-use electricity rate?
The same kilowatt-hour, priced differently depending on when you use it.
- Should you switch to a time-of-use electricity plan?
A wide peak-to-off-peak gap is a lever, not a saving. Levers need something to move.
- How to compare electricity plans without getting it wrong
Six things that break a comparison, and the order to check them in.
Every plan, in detail
Hour-by-hour schedules, tier thresholds, and the tariff each one comes from.
- Residential Demand - Time Differentiated Rates (Schedule RD-TDR)demand charge
One rate, every hour of the year.
5.0¢ - Residential Demand Service (Schedule RD)demand charge
One rate, every hour of the year.
6.2¢ - Residential Energy Time Of Use (Schedule RE-TOU)time-of-use
Peak hits 5pm–9pm every day, all year.
12.2–38.1¢ - Residential General Service Opt-Out (Schedule R-OO)flat
The hour never matters here — only the season. Rates peak June–September.
15.3–18.3¢ - Residential Service (Schedule R)flat
The hour never matters here — only the season. Rates peak June–September.
15.6–17.3¢