Energy bills for commercial and industrial facilities are among the most complex invoices any business receives. They combine commodity supply charges, regulated utility delivery charges, demand readings, multiple riders, taxes, and fees — often across multiple pages with inconsistent labeling. Errors are common. So are charges that are technically correct but structurally avoidable.
This checklist walks through the most common sources of overbilling and unnecessary cost on a commercial energy invoice. Work through it on your most recent bill.
Section 1: Basic Bill Verification
Check these first
- Billing period length: Verify the number of days in the billing period matches what's on the invoice. Utilities occasionally bill a 33-day period at a 30-day rate — or vice versa — creating a discrepancy in kWh totals.
- Meter read type: Confirm the read is "actual" not "estimated." Estimated reads are common when a meter reader can't access a site, and they're often wrong. If you see "E" next to your read, request an actual read.
- Account number and service address: Confirm the bill matches the right facility. Multi-site operators sometimes receive bills for wrong locations.
- Tariff/rate schedule: Find the rate schedule listed on your bill. Look it up in your utility's tariff. Confirm your facility is on the correct rate class for your load size and usage pattern.
Section 2: Demand Charges
Demand charges are typically the largest single line item on a commercial electric bill — and the most misunderstood. They're based on your peak 15-minute or 30-minute consumption reading during the billing period, measured in kilowatts (kW). One brief spike in demand can set your demand charge for the entire month.
Demand charge audit
- When did your peak occur? Your utility can provide the timestamp of your peak demand reading. A single piece of equipment starting up (HVAC, compressors, elevators) can set the month's demand. Knowing when it happened lets you address the cause.
- Are you billed on a ratchet? Some utility tariffs include a "ratchet clause" that bills you based on the highest demand from the current or prior 11 months — whichever is greater. A summer spike can affect your bills for a full year.
- On-peak vs. off-peak demand: Time-of-use tariffs often charge separately for on-peak demand (typically weekday afternoons) and off-peak demand. Check whether both are on your bill and whether the readings are plausible.
- Coincident peak (CP) charges: In some markets (particularly PJM), capacity charges are based on your load during specific regional peak hours in the prior summer. These "coincident peak tags" can persist for a full year. Verify you haven't been incorrectly tagged.
Real savings opportunity: Many commercial facilities pay 30–50% of their total electric bill in demand charges. Even modest reductions in peak demand — through load shifting, demand response, or equipment scheduling — can produce significant annual savings with no change to your supply contract.
Section 3: Supply Charges
Commodity and supply
- Confirm your contracted rate: If you have a supply contract, pull the executed agreement and confirm the rate on your bill matches. Supplier billing errors occur more often than most buyers expect.
- Check your contract start and end dates: Confirm you rolled onto your new supply rate on the correct date. A delayed start can mean paying default utility supply rates (almost always higher) for weeks or months.
- Verify pass-through charges: If you have a "partially fixed" or "pass-through" contract, identify which components can change. Capacity charges, transmission charges, and ancillary service charges are commonly passed through even on "fixed" contracts.
- Check for automatic renewal: If your contract has expired, verify you didn't roll onto a default or holdover rate. These are almost always higher than competitively procured rates.
Section 4: Riders, Fees, and Taxes
Line items to scrutinize
- Transmission and distribution riders: These recover utility infrastructure costs and are legitimate, but rates change periodically. If you see a large increase in a rider line item quarter-over-quarter, verify the new rate against the utility's published tariff.
- Renewable portfolio standard (RPS) charges: Many states assess these charges to fund renewable energy programs. They're typically small but should be consistent with prior periods unless rates changed.
- Late payment fees: Check whether any late fees have been applied. These are sometimes added incorrectly, particularly when billing addresses change or ACH payments are delayed.
- Franchise fees and sales tax: Confirm the tax rates applied are current and consistent with your municipality. Tax rates occasionally change; if you see an unexplained increase, compare to the prior bill.
Section 5: Year-Over-Year Comparison
Compare to the same period last year
- Usage (kWh): Is consumption materially higher or lower than the same month last year? Unexplained consumption increases sometimes indicate a metering error or a new load you weren't aware of.
- Total cost per kWh: Divide your total bill by your total kWh consumption. Compare this effective rate to the prior year. A rising effective rate that doesn't correspond to a market increase or contract change warrants investigation.
- Demand reads: Compare peak demand to prior periods. An unexplained demand spike may indicate a metering issue or new equipment left running outside normal operating hours.
What to Do When You Find an Error
Call your utility's commercial accounts line (not the residential support line) and ask to speak with billing. Document your finding in writing before you call — have the bill, the prior period bill, and any supporting calculations ready. Most utilities will issue a billing adjustment if you can demonstrate the error clearly. For errors involving your supplier, contact your supply account manager with the same documentation.
If the dispute is significant and you're having difficulty getting resolution, your state's public utility commission has a consumer advocacy function — they can sometimes accelerate resolution of billing disputes.
How we can help: We review client bills as part of our ongoing service — looking for both billing errors and structural opportunities to reduce demand charges or improve tariff classification. If you'd like a second set of eyes on your bill, share it with us as part of your free rate review.
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