verifiedTranscribed from the utility's filed sheetPSCo Customer Impact Study, Proceeding 26AL-0325E (2026 Q4 Electric Commodity Adjustment), Schedule SG row
verifiedEffective date on the sheet: 2026-10-01
verifiedReconciles to a total the utility published itselfEXACT, at four independent lines of PSCo's own published study, from the determinants it states. Base Rate Amount $1,534.24, Subtotal Base Rate Adjustments $1,169.02, Total Bill Subtotal $2,704.08, Total Bill $2,791.97.
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
What this figure does and does not include
Transcription notes recorded when this tariff was encoded, including anything deliberately left out.
FOUR DIFFERENT DEMAND QUANTITIES ON ONE BILL: 62 kW for distribution, 22 kW summer generation and transmission, 38 kW winter G&T, and 60 kW for every base-rate adjustment rider. No single metered demand produces all four. They are INPUTS here, because PSCo's study reports one customer's determinants without stating the rules that produce them, and inventing a derivation to make four numbers fall out of one is the plausible-looking guess this catalogue exists to avoid.
PSCO ROUNDS ONCE, NOT PER LINE, and AEP Ohio and ComEd do the opposite. Summing the study's own printed lines gives $2,704.09; PSCo prints $2,704.08. Only keeping energy (21,874 x 0.00853 = 186.58522) and ECA (663.21968) unrounded until the subtotal reproduces it, and the three percentage riders on that unrounded figure then give $2,791.97 exactly.
BUNDLED, UNLIKE OHIO AND ILLINOIS. Colorado is vertically integrated, so nothing on this bill is bypassable and shopping changes nothing. The other two commercial encodings carry a generation half a customer can buy elsewhere; this one does not.
THE PERCENTAGES ARE ON THE WHOLE SUBTOTAL, not on the base. CEPA, CEPR and RESA apply to base plus adjustments plus EEAC - which is why they cannot be folded into a per-kWh rate any more than AEP's Base (Dist) riders can.
NOTHING IN COLORADO LAW REQUIRES THIS DOCUMENT. 4 CCR 723-3 was read in full and contains no bill-comparison requirement. PSCo files it anyway, roughly quarterly, and has since 2010 - which is why the reconciliation target here is better than in states that do mandate one.
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Change history
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elsewhere once a rate changes.
No changes detected since monitoring began. The source sheet is checked daily.