HomeWattCost

Colorado Springs Utilities ETR vs ETR-F

ETR and ETR-F cost about the same for a typical Colorado home (within $4 a year). ETR is cheaper below about 900 kWh a month and ETR-F above it, with the same daily pattern of use.

Utility Colorado Springs UtilitiesTariffs checked 2026-09-28Typical use 676 kWh/mo, Colorado

Head to head

ScenarioETRETR-FCheaper
Typical home, per month$105$104Tie
All-in price per kWh15.5¢15.5¢Tie
Home + EV, charged at the cheapest hour$132$137ETR
Home + EV, plugged in at 6 pm$159$137ETR-F
Fixed charge$20.79$23.69

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 ETR, any hour on ETR-F.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
ETR$97$84$86$82$88$128$166$146$117$87$83$94
ETR-F$98$86$88$83$87$125$162$142$114$88$85$95

ETR: price by hour

July weekday.

Off-peakPeak
9.8¢33.4¢9.8¢12a3a6a9a12p3p6p9p12a

ETR-F: price by hour

July weekday.

Same price all day
13.5¢12a3a6a9a12p3p6p9p12a

ETR or ETR-F: common questions

Is ETR or ETR-F cheaper?

ETR and ETR-F cost about the same for a typical Colorado home (within $4 a year). ETR is cheaper below about 900 kWh a month and ETR-F above it, with the same daily pattern of use. Adding an EV driven 1,000 miles a month and charged at each plan’s cheapest hour, ETR gives the lower total ($132 against $137 a month).

What is the difference between ETR and ETR-F?

ETR is time-of-use (summer weekdays: Peak 5 pm–9 pm; lowest price 9 pm–5 pm next day), with a fixed charge of $20.79 a month. ETR-F is flat: the same price at every hour, with a fixed charge of $23.69 a month.

How the two plans work

ETR: Residential Service, Energy-Wise Standard Time-of-Day Option

  • Peak 5 pm–9 pm on July weekdays; 4 of 24 hours carry the top price of 33.4¢.
  • The cheapest July weekday hour costs 9.8¢, so moving 1 kWh out of the top hours saves 23.6¢.
  • January weekdays range from 9.8¢ to 18.9¢.
  • Summer pricing applies Jun–Sep; winter pricing Oct–May.
  • Weekends differ: off-peak all day.
  • Fixed charge: $20.79 a month.

ETR-F: Residential Service, Fixed Seasonal Option

  • One price per kWh at every hour: 13.5¢ in July and 10.9¢ in January.
  • Shifting use to other hours changes nothing on this plan; using less is the only lever.
  • Fixed charge: $23.69 a month.

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