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Colorado: Budget the exposed components rather than one future rate
Start with EIA: supply, demand, weather and storage price drivers. The table below links this decision to the represented gas companies in Colorado. It does not establish service or supplier availability for every account.
Create a scenario register
Keep monthly usage, index assumptions, location differential, fixed charges and exposed adjustments in separate columns. Name the source and observation date for market data. A supplier’s written formula determines how an observation reaches the bill.
Use a revision trigger
Set an internal review date and identify operational changes that justify a new budget: closure, added shifts, equipment replacement or a corrected baseline. Keep a downside scenario visible without presenting it as a prediction or creating unsupported urgency.
Colorado utility application
| Gas service company | Component requiring a separate forecast | Primary reference |
|---|---|---|
| Xcel Energy / Public Service Company of Colorado | Gas-cost adjustment under sales service versus transportation, fuel and agent charges | Official program / tariff |
| Black Hills Energy | Colorado utility gas cost and customer charges versus any qualified transport proposal | Official program / tariff |
| Colorado Springs Utilities | Gas customer, usage, supply and Clean Heat Plan components | Official program / tariff |
| Atmos Energy Colorado | Applicable gas-cost adjustment versus transportation and supplier costs | Official program / tariff |
Xcel Energy / Public Service Company of Colorado: the program detail behind this decision
Public Service Company of Colorado lists separate small and large commercial sales schedules and small and large firm transportation schedules. A transportation tariff is an operating arrangement with its own terms; an Xcel electricity account or another distributor’s gas contract does not qualify the premises. Xcel Co Tariff.
Apply the evidence to an account file
Give Gas-cost adjustment under sales service versus transportation, fuel and agent charges its own documented model assumptions. Validate CSG or CLG sales compared with the applicable TFS or TFL transportation schedule before using a utility comparison component; a forecast for a different class is not this meter’s available alternative.
An assumption register that can be updated without rewriting history
Record each month’s therms, price mechanism, assumed benchmark, location/service adders, recurring fees and retained utility charges. Keep the original budget alongside revisions and actuals. Change one driver at a time to identify sensitivity, then test a combined adverse scenario. For a fixed commodity offer, leave that defined component fixed over its contractual months while varying usage and genuinely exposed items. Do not apply a current spot observation to every future month or label an invented scenario as the forecast available to the customer.
Turn the review into a calculation
Build a monthly weighted budget. Enter documented assumptions in matching energy units. Keep any charge outside both supply offers separate; the result does not establish eligibility or an available quote.
Read the Colorado utility guide for the wider service-company distinctions. Convert billed gas units using the bill’s heat-content factor when moving from volume to energy.
Sources and review notes
- EIA: supply, demand, weather and storage price drivers
- Xcel Energy Colorado gas tariff
- Castle Rock Gas
- Colorado Springs Gas
- City of Greeley: local utility directory
Reviewed October 16, 2026. Program information can change. Confirm the effective utility tariff, supplier availability and written offer before proceeding. Examples and planning tools are educational; they are not executable quotes or verified customer results.