Fixed Rate, Surprise Bill: Why PJM Charges Are Increasing Business Energy Costs
Why This Matters
If your organization buys electricity on a fixed-rate contract in the Mid-Atlantic or Midwest, you probably expect a predictable bill. But a charge called PJM Conservative Operations is showing up on invoices across the region, sometimes months after the event that caused it. It isn’t extra electricity, and it isn’t a sign your supplier made a mistake. It’s the cost of keeping the power grid reliable during extreme conditions, and more of that cost is reaching customers.
The key takeaways:
- What it is: A pass-through of extra reliability costs incurred by PJM, the grid operator serving 13 states and Washington, D.C.
- Why it’s growing: Electricity demand is rising faster than new power plants are being built, which leaves less cushion when the weather turns extreme.
- What it costs: Winter Storm Fern alone generated roughly $798 million in these costs over nine days. On one commercial bill we reviewed, it added about 16% to the stated supply rate.
- What to do: Know exactly what your “fixed” contract covers, and budget for the charges it doesn’t.
A Fixed Rate, and a Charge You Didn’t Expect
A fixed energy contract is designed to create predictability. So when a separate line item labeled “PJM Conservative Operations” appears on a bill, the natural question is: What is this, and how can it be charged if my rate is fixed?
The short answer: It is not a charge for extra electricity you used, and it is not the normal PJM capacity price. It is your share of extraordinary costs PJM paid to keep additional power plants available while the grid was under stress.
Until recently, charges like this lived quietly in contract fine print. Winter Storm Fern changed that. Over nine days, the event produced roughly $798 million in preliminary out-of-market costs, turning a technical grid mechanism into a real budget issue for energy buyers.
What “Conservative Operations” Means
PJM keeps electricity supply and demand in balance across all or parts of 13 states and the District of Columbia. On a normal day, power plants are scheduled through PJM’s markets based mainly on price and system needs.
When PJM sees a threat to reliability, such as severe weather, fuel shortages, equipment outages or physical threats, it can declare Conservative Operations. That lets grid operators recall plants from planned maintenance, hold more reserves, reduce power transfers and turn on generators earlier than the market normally would.
Put simply, PJM pays to have more generation online, or ready to come online, than the market would otherwise choose. The goal is to lock in enough supply before conditions get worse, especially for plants that take a long time to start or must secure fuel well in advance.
Where the Cost Comes From
A power plant brought online for reliability can spend more on startup, fuel and operations than it earns at the normal market price. PJM covers the difference with an out-of-market payment known as uplift.
Uplift costs flow through PJM’s settlement process to the companies that serve customers, including utilities and retail energy suppliers. Depending on the contract, your supplier may then pass your share through as a separate charge.
That is what happened during Winter Storm Fern. From January 24 through February 1, 2026, PJM managed prolonged freezing temperatures, a tight natural gas market and elevated plant outages. It committed resources early to protect reliability, and according to PJM’s preliminary review, those actions created approximately $798 million in uplift costs.
What This Looks Like on a Real Bill
In one recent commercial bill we reviewed:
| Usage in billing period | 233,323 kWh |
| PJM Conservative Operations charge | $5,798.09 |
| Charge per kWh | ~2.49¢ |
| Fixed commodity rate | 15.403¢ |
| Effective supply cost (before other adjustments and taxes) | ~17.89¢ |
| Increase over the stated rate | ~16% |
The timing matters too. The billing month does not always line up with the weather event. Because PJM settlements and supplier reconciliations happen after the fact, customers may see the charge long after the storm has passed and after their budget period has closed.
Why a Fixed Contract May Not Stop the Charge
As we explained in What Fixed Really Means in Today’s Evolving Energy Market, “fixed” does not always mean the supplier absorbs every future market cost. Most modern contracts fix the commodity price and account for known capacity and transmission costs, while keeping the right to pass through or reconcile certain charges imposed by the market.
Conservative Operations and uplift charges may fall under contract terms such as operating reserves, RTO/ISO charges, balancing charges, market-settlement adjustments, change in law, or other governmental and market-authority costs. The exact wording controls the outcome, which means two contracts both described as “fixed” can produce very different bills after the same PJM event.
The product label isn’t enough. Your contract should clearly answer:
- Which PJM charges are included in the fixed rate?
- Which charges can be passed through or reconciled later?
- How will the supplier calculate your share?
- Can later PJM resettlements create an additional charge, or a credit?
Grid Stress Is Now a Budget Issue
The bigger story isn’t that one winter storm was expensive. It’s that the conditions behind these events are becoming more common as electricity demand grows faster than new supply.
PJM’s 2026 forecast projects summer peak demand growing about 3.6% per year over the next decade, up from just 0.3% in the forecast issued five years earlier. PJM now expects summer peak demand to rise by nearly 66,000 MW between 2026 and 2036. Data centers are a major driver, along with broader electrification and economic growth.
PJM still expects to keep the lights on under normal conditions. But it has been direct about the shift: load growth is outpacing new generation, reserve margins are tightening, and there is less flexibility to help neighboring regions in an emergency.
That doesn’t mean PJM is about to run out of power. It means the cushion for forecast errors, extreme weather, plant outages and fuel constraints is getting thinner. As that margin narrows, conservative operations become a more frequent reliability tool, and the cost of using it increasingly lands on customer bills.
The bottom line: PJM Conservative Operations costs are no longer a footnote buried in supplier terms. They are a real and growing financial exposure that energy buyers need to understand, contract for and budget around.
What Energy Buyers Should Do
- Review adjustment language before you sign. Look past the headline rate and find how uplift, operating reserves and other PJM charges are handled.
- Confirm what “fixed” actually covers. Ask suppliers to spell out which commodity, capacity, transmission, ancillary service and extraordinary market charges are included.
- Build a contingency into your budget. Fixed contracts still deliver real value, but plan for a limited set of market and regulatory charges that may sit outside the fixed rate.
- Keep watching the market between renewals. Extreme-weather preparation, reserve margins, plant availability and PJM rule changes now affect contracted customers, not just those buying at spot prices.
The Takeaway
Fixed pricing still matters. It protects the largest and most volatile part of your supply cost and remains an essential budgeting tool. But fixed doesn’t mean disconnected from the grid’s changing reliability needs.
The goal isn’t to eliminate every possible adjustment. It’s to know which risks you’re keeping, verify the charges when they appear, and make sure your procurement strategy reflects today’s market, not the one we had five years ago.
Know What Your Contract Really Fixes
Zentility helps you identify pass-through exposure, compare supplier product structures, audit unexpected market charges and build a procurement strategy aligned with your budget and risk tolerance.
Sources and Further Reading
- PJM Reviews January Cold Weather Operations, February 6, 2026
- PJM Updated 20-Year Forecast Continues to See Significant Long-Term Load Growth, January 14, 2026
- PJM Summer Outlook 2026, May 7, 2026
- PJM Emergency Procedures Message Definitions, accessed September 28, 2026
- PJM Board Response Regarding Conservative Operations, March 9, 2026
