by time of day and by day of week and by season · plus $8.22 per month · covers the full bill — everything the utility bills for energy - directly comparable to another bundled rate
transcribed2026-09-30
effective2026-10-01
today2026-10-06
Monthly bill
Usage
cheapest hours
most expensive hours
500 kWh
$71.17
$189.78
1,000 kWh
$134.12
$371.35
2,000 kWh
$260.02
$734.48
This plan prices by time of day, so a monthly total alone does not determine the bill. The columns are the bounds: every kWh in the cheapest period, and every kWh in the dearest. A real bill falls between them, and where it falls is what this plan is asking you to change.
Before taxes, franchise fees and any local surcharge.
Provenance
reconciled to a published total
sourcePSCo COLO. PUC No. 8 Electric, Schedule RE-TOU, Sheets 33-33C, Advice Letters 2034 (ECA) and 2035 (EEAC), from the filed rate book
verifiedTranscribed from the utility's filed sheetPSCo COLO. PUC No. 8 Electric, Schedule RE-TOU, Sheets 33-33C, Advice Letters 2034 (ECA) and 2035 (EEAC), from the filed rate book
verifiedEffective date on the sheet: 2026-10-01
verifiedReconciles to a total the utility published itselfEXACT, against Xcel's own Electric Rates Summary effective 1 October 2026: all eight residential energy rates and the $8.22 service charge reproduce its Total Monthly Rate column. The figures were read off the filed rate
verifiedSource document checked daily for changes
excludedTaxes, franchise fees and local surchargesJurisdiction-specific, so they are deliberately not encoded. A bill will be higher than this figure by that amount.
Energy rates
Period
Applies to
$/kWh
summer on-peak, weekdays 5pm-9pm, June-September
all usage
$0.36313
summer off-peak, all other hours and weekends
all usage
$0.14373
winter on-peak, weekdays 5pm-9pm, October-May
all usage
$0.31431
winter off-peak, all other hours and weekends
all usage
$0.12590
Other plans at this utility
Encoded from the same tariff book, on the same day. Which one
you are on is on your bill; which one you are eligible for is set by the
utility, not by this page.
Transcription notes recorded when this tariff was encoded, including anything deliberately left out.
VERIFIED AGAINST XCEL'S OWN ALL-IN TOTALS. These rates were computed from the filed rate book on 30 September, before Xcel published a total for them; its Summary of Electric Rates effective 1 October 2026 appeared on 2 October and all eight rates plus the service charge reproduce its Total Monthly Rate column exactly.
THE COMMODITY CHARGE FELL AND ITS PERCENTAGE ROSE. Schedule R's ECA went $0.03012 to $0.02520/kWh while the RE-TOU and R-OO percentage went 29.00% to 29.42%, so this quarter Schedule R gets cheaper and the time-of-use and opt-out schedules get very slightly dearer.
THE ENERGY ASSISTANCE CHARGE RESETS EVERY 1 OCTOBER, by the Denver CPI, under HB 21-1105: $0.83 to $0.86 a month from 1 October 2026. It is billed per metered premise and income-qualified customers are exempt.
THE RATE CASE IS NOT IN THE RATE SCHEDULE. Sheets 30, 33-33C and 34 are unchanged from July - identical bytes. Anyone re-reading the schedule sheet to find this increase would find nothing. It is on sheets 132, 141 and 142.
GRSA IS NOT A RESIDENTIAL CHARGE. The same sheet that raises GRSA-E raises the General Rate Schedule Adjustment from 0% to 14.12%, and that one applies to "all rate classes except Residential and Small Commercial". Residential receives the rate case through GRSA-E instead. Reading the 14.12% as residential overstates the bill by about 2c/kWh.
NOT EVERY RATE WENT UP. The Transmission Cost Adjustment's distribution component goes to zero - those costs are in base rates now - and on RE-TOU summer on-peak that cut is worth more than GRSA-E and the PCCA rise together. That one rate falls by 0.034c/kWh while every other residential rate rises.
THREE RESIDENTIAL SCHEDULES, AND WHICH ONE YOU ARE ON DEPENDS ON YOUR METER. Schedule R applies until the customer receives an Advanced Meter. At that point they are moved to RE-TOU automatically unless they opt out, and opting out puts them on R-OO. So all three are live at once and a customer moves between them without changing address or usage.
SCHEDULE R AND SCHEDULE R-OO FILE IDENTICAL BASE RATES AND BILL DIFFERENTLY. Both are $7.10 plus 10.380c summer and 8.570c winter. Schedule R's seven cost-recovery adjustments are filed as cents per kWh; R-OO's are filed as percentages of the base. Winter lands at 15.371c against 14.575c. Reading either rate sheet alone gives you no way to tell them apart.
EVERY ADJUSTMENT HAS ITS OWN EFFECTIVE DATE and they do not line up - grid modernization and purchased capacity from 1 January 2026, wildfire mitigation and demand-side management from 1 July 2026. The Electric Commodity Adjustment resets quarterly and at 29% of base is by far the largest single term.
THE REVENUE DECOUPLING ADJUSTMENT IS SUMMER-ONLY, LANDS AFTER THE PERCENTAGES, AND DIFFERS BY SCHEDULE - 0.013c for R and R-OO, 0.068c for RE-TOU on-peak, nothing at all for RE-TOU off-peak. It is small enough to look like a rounding artifact and is not one.
EXCLUDED: Colorado municipal franchise fees and state, city and county taxes, all of which depend on the customer's address. Also excluded: the $2.55 production and load meter charges, which apply only to customers with on-site generation, and the year-round Medical Exemption rate of 7.749c, which is an enrolment-gated programme rather than a general rate.
THE DOCUMENTS ARE ON SALESFORCE FILES and answer a plain HTTP request with a 1,359-byte delivery shell at HTTP 200. They are fetched by replaying the delivery page's own requests to find the document version, then downloading it - see rategrid/ingest/salesforce.py. The distribution keys rotate when Xcel re-uploads, so a 404 here means re-harvest the rate books page, not that the document was withdrawn.
THE DEFAULT RESIDENTIAL RATE IN COLORADO. Every customer is moved on to it on receiving an Advanced Meter unless they actively opt out. This is not an opt-in TOU pilot.
A FOUR-HOUR ON-PEAK WINDOW: weekdays except holidays, 5pm to 9pm Mountain. Everything else, including all weekend hours, is off-peak. There is no shoulder or mid-peak period, which makes this simpler than the California TOU schedules and much peakier - summer on-peak (36.254c) is 2.7 times off-peak (13.408c).
HOLIDAYS ARE NOT MODELLED. Sheet 33C exempts holidays from the on-peak period; this encoding treats every weekday alike, so a holiday falling on a weekday is priced about 13c/kWh too high for four hours. Roughly ten hours a year at stake.
The monthly minimum is the service and facility charge alone.
Think a figure here is wrong?
Email support@rategrid.dev
with this plan's name and what the filed sheet says. Every rate on this page was
transcribed from the document linked above, so a report that quotes the sheet can
be checked against it and corrected.
Change history
The source document is fetched daily and every version is kept.
Utilities do not publish superseded rates, so this record does not exist
elsewhere once a rate changes.
No changes detected since monitoring began. The source sheet is checked daily.