HomeWattCost

Xcel Energy CO RE-TOU vs R-OO

RE-TOU and R-OO cost about the same for a typical Colorado home (within $0 a year). They stay within about 1% of each other at every level of use from 200 to 2,500 kWh a month, with the same daily pattern of use.

Utility Xcel EnergyTariffs checked 2026-10-01Typical use 677 kWh/mo, Colorado

Head to head

ScenarioRE-TOUR-OOCheaper
Typical home, per month$121$121Tie
All-in price per kWh17.9¢17.9¢Tie
Home + EV, charged at the cheapest hour$158$167RE-TOU
Home + EV, plugged in at 6 pm$197$167R-OO
Fixed charge$8.22$8.22

Typical home: Colorado average use by month (EIA), shaped hour by hour (NREL ResStock), before taxes. EV: Tesla Model Y Long Range AWD, 1,000 miles a month; cheapest start 12 am on RE-TOU, any hour on R-OO.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
RE-TOU$113$96$98$93$99$148$197$188$129$97$92$107
R-OO$114$97$100$93$96$147$197$188$129$97$93$107

RE-TOU: price by hour

July weekday.

Off-peakPeak
14.4¢36.2¢14.4¢12a3a6a9a12p3p6p9p12a

R-OO: price by hour

July weekday.

Same price all day
18.4¢12a3a6a9a12p3p6p9p12a

RE-TOU or R-OO: common questions

Is RE-TOU or R-OO cheaper?

RE-TOU and R-OO cost about the same for a typical Colorado home (within $0 a year). They stay within about 1% of each other at every level of use from 200 to 2,500 kWh a month, with the same daily pattern of use. Adding an EV driven 1,000 miles a month and charged at each plan’s cheapest hour, RE-TOU gives the lower total ($158 against $167 a month).

What is the difference between RE-TOU and R-OO?

RE-TOU is time-of-use (summer weekdays: Peak 5 pm–9 pm; lowest price 9 pm–5 pm next day), with a fixed charge of $8.22 a month. R-OO is flat: the same price at every hour, with a fixed charge of $8.22 a month.

How the two plans work

RE-TOU: Residential Energy Time-of-Use

  • Peak 5 pm–9 pm on July weekdays; 4 of 24 hours carry the top price of 36.2¢.
  • The cheapest July weekday hour costs 14.4¢, so moving 1 kWh out of the top hours saves 21.8¢.
  • January weekdays range from 12.6¢ to 31.4¢.
  • Summer pricing applies Jun–Sep; winter pricing Oct–May.
  • Weekends differ: off-peak all day.
  • Fixed charge: $8.22 a month.

R-OO: Residential General Service Opt-Out

  • One price per kWh at every hour: 18.4¢ in July and 15.5¢ in January.
  • Shifting use to other hours changes nothing on this plan; using less is the only lever.
  • Fixed charge: $8.22 a month.

Your own pattern of use decides the winner: compare every Xcel Energy plan on your usage, or see all Xcel Energy plans, sources and peak hours.