6 Colorado Utility Charges That Keep Rising Without a Rate Case
The Colorado Public Utilities Commission approved a $5-a-month rate increase for Xcel Energy in a decision issued in August 2026, cutting the utility’s original request by more than half.
That fight made headlines.
Many of the other line items stacking up on your utility bill never go through anything like it.
These are the Colorado utility charges that keep rising without a rate case.
Note: This is general information, not financial or legal advice. Utility rates and adjustment charges are subject to change, so confirm the current details with the Colorado Public Utilities Commission (PUC).
1. Electric Commodity Adjustment
Xcel Energy’s Electric Commodity Adjustment is why a fuel-price spike can land on your bill within a single season, with no hearing involved at all.
A brutal cold snap hit Colorado in January 2026.
Wholesale natural gas prices at a regional hub jumped from about $3 to more than $8 in a single week.
No hearing needed.
Xcel runs a lot of its power plants on that same natural gas.
The utility said the spike would show up on your electric bill through the next quarterly Electric Commodity Adjustment filing.
State law lets Xcel update the charge through an automatic adjustment clause, a shorter process than a full case.
That’s a different track than the $5-a-month increase Xcel’s 2026 rate case needed nearly a year of hearings to win.
The PUC still checks the math behind each quarterly filing, but nobody argues over your bill in a hearing room first.
2. Gas Cost Adjustment
Xcel Energy and Colorado’s other gas utilities pass the wholesale price of natural gas straight through to you on this line.
The rate you pay through this charge rose 5.24% between the second and third quarter of 2026.
Straight to your bill.
That’s about $1.28 more on a typical residential bill for that quarter alone.
Gas utilities update it through a gas cost adjustment set by the PUC, on a quarterly or twice-a-year schedule well outside the rate case process.
Commodity costs like this one make up 65% to 75% of a typical gas bill, according to the PUC.
That’s enough to swing your total more than any other line, especially once a cold snap pushes wholesale prices higher.
Atmos Energy runs the same kind of adjustment for the parts of Colorado it serves, so the mechanism isn’t unique to Xcel customers.
3. Transmission Cost Adjustment
Xcel Energy recovers what it spends building and maintaining the high-voltage lines that move electricity across Colorado through this separate charge on your bill.
The utility adjusts it once a year, between general rate cases, as new transmission investment goes into service.
One project can move it.
The $1.7 billion Colorado Power Pathway, a set of new transmission lines crossing the eastern plains, is the single biggest driver behind the charge on your bill right now.
4. Demand-Side Management Charge
Xcel Energy funds its energy-efficiency programs, the rebates and equipment upgrades that help you use less power, through this charge on your bill.
Regulators approve these programs in multi-year plans, then let Xcel recover the cost through a rider instead of folding it into a full case.
Xcel filed its next plan with the Colorado PUC in July 2026.
The proposal, called the Integrated Customer Program Plan, would expand your rebates into new efficiency and customer-service offerings.
The commission’s description of that filing says it comes with potential impacts on your monthly bill, the same pattern every multi-year efficiency plan before it has followed.
Rebates rarely shrink.
A matching demand-side management charge shows up on your natural gas bill too, paying for insulation and appliance rebates instead of power ones.
Why Your Colorado Utility Bill Might Not Have These Charges
Xcel Energy and Black Hills Energy are the only two electric utilities in Colorado the PUC regulates for rates.
These charges only show up if one of those two utilities bills you.
About 22 rural electric cooperatives and dozens of municipal utilities operate across Colorado, places like Colorado Springs Utilities and Fort Collins Utilities.
A member board or a city council sets rates for each one, not the PUC.
The difference is who signs off on your rate: A locally elected board, not a state commission running a formal adjustment-clause process.
5. Transportation Electrification Charge
Xcel Energy funds electric-vehicle charging stations and driver rebates across Colorado through this rider on your bill.
The PUC approved it under a 2019 state law instead of a general rate case.
Senate Bill 19-077 requires electric utilities to file a Transportation Electrification Plan, and the PUC approves each multi-year plan on its own separate schedule.
Xcel’s charge first showed up on your bill in March 2021, when its first plan started collecting money.
The PUC approved Xcel’s second plan in 2024, and the utility’s current plan runs through 2026.
New cycle, new cost.
Every renewal adds new charging investment to the rider, on a timetable separate from any base rate case.
6. Energy Assistance Charge
You and every other regulated electric and gas customer in Colorado pay this flat monthly charge, which funds bill help and weatherization for low-income households.
The charge started at 50 cents in October 2021, and Colorado law has raised it automatically every year since, with no rate case involved at any point.
You can opt out.
Skip that, and your charge adjusts for inflation every October 1, under a formula written into the statute instead of argued out at a hearing.
Black Hills Energy customers see the identical charge on their bill too, since the law covers every regulated utility in the state, not just Xcel.
Psst! How much do you know about Colorado’s power grid and utility history? Take our quiz and see how many you can get right.
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What Counts as a Rate Case
A rate case is the formal proceeding Xcel or Black Hills Energy files to raise the base rate that funds the power plants and pipelines behind your electricity and gas.
That base rate also covers customer service staff and everything else that doesn't show up as a separate rider on your bill.
A rider skips it.
Xcel's 2026 electric case ran for months.
Company witnesses filed testimony, and outside groups like Colorado's Office of the Utility Consumer Advocate challenged the numbers.
Commissioners issued a written decision only after all of that played out.
Xcel runs at least one more rider the same way.
A renewable-electricity mandate adjustment shows up as a separate line on your bill, funded through a multi-year plan instead of a rate case.
Why One Charge Can Turn Into a Credit
Xcel Energy inspects, repairs, and replaces aging natural gas pipe under Colorado streets.
The utility recovers that safety spending through a line called the Pipeline System Integrity Adjustment, GRSA-P for short in the utility's filings.
Not every charge on your bill only moves in one direction.
Sometimes it runs backward.
Colorado's gas pipe keeps aging, so Xcel keeps filing new multi-year requests to recover fresh rounds of replacement costs.
One recent request asked to extend this exact charge to cover costs through the end of 2024.
When Xcel collects more than a project costs, the charge flips into a credit on your bill instead.
That's exactly what happened on the gas side before the utility filed to extend the recovery again.
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