Most commercial electric bills get read from the bottom up. Someone checks the amount due, the due date and the account number, then sends the bill on to accounts payable.
That order skips everything that decides the total. The utility built the bill from the top down: meter, read dates, usage, demand, rate schedule, then riders and taxes. Read it the same way and each line has a job you can check.
This guide walks through a typical commercial bill in that order. Layouts differ between Xcel Energy, Colorado Springs Utilities, Fort Collins Utilities and Black Hills Energy, but the parts are the same. Our bill anatomy guide has the same sequence with a table of every line item.
Start with account and meter
The top of the bill identifies three different things, and they are easy to confuse.
- Account number: the billing relationship. It can change when a tenant moves out, an entity is renamed or the site is sold.
- Meter number: the physical device on the wall. It changes when the utility swaps the meter.
- Service address or premise ID: the location the utility serves. This one changes least.
One account can carry several meters, and one site can have several accounts: the main building, a parking lot light, a pylon sign, an irrigation controller. Write down all three identifiers for every bill. When any of them changes, find out why before you pay.
Check: the service address and meter number match the site you think you are paying for.
Read dates set the period
Next comes the billing period: a previous read date, a current read date and the number of days between them. Utilities read meters on a route cycle, so the period rarely matches a calendar month. It can run anywhere from the high 20s to the low 30s in days.
Beside the dates is the read type. It may say “actual,” “estimated” or “customer read,” or show a code letter with a key on the back page. An estimated read means nobody measured your usage that cycle; the utility filled it in from history. We cover what that costs in estimated meter reads and what they cost.
Check: the number of days looks normal, and the read was actual.
Turn meter reads into kWh
The usage section shows the previous reading, the current reading and the difference. On many commercial services, that difference is not the usage yet.
Larger services use current transformers, so the meter registers a scaled-down share of what the building draws. The bill multiplies the reading difference by a constant, often called the multiplier or meter constant. In this example, the register moves 1,250 units and the multiplier is 40, so the bill shows 50,000 kWh.
The multiplier is one of the quietest numbers on the page and one of the most expensive to get wrong. It is set when the meter is installed and should stay the same until the meter or its transformers change.
Check: the multiplier matches last month’s bill. If the meter number changed, confirm the new multiplier with the utility.
Find the demand and its source
If the account is on a demand-metered schedule, the bill shows kW as well as kWh. kWh is how much energy the site used over the period. kW is how fast it drew energy at its busiest moment.
The National Renewable Energy Laboratory explains that demand charges are typically based on the highest average electricity usage in a defined interval, usually 15 minutes, during a billing period. One quarter hour on a hot afternoon can set the demand charge for the whole month.
Look for two demand numbers. Metered demand is what the meter recorded. Billed demand is what the utility charged, and it can be higher because of a ratchet, a contract minimum or a power factor adjustment written into the tariff.
Check: if billed demand is higher than metered demand, find the tariff rule that explains the gap.
Match the rate schedule
Somewhere on the bill, often in small type near the usage, is the rate schedule: a code or name for the price list that applies to the account. Every other charge on the bill comes from that schedule in the utility’s tariff book.
The schedule decides whether you pay demand charges, whether prices change by time of day, and what the monthly service charge is. It was usually chosen when the account opened and rarely looked at since. If similar sites in your portfolio sit on different schedules, that is worth a question. How to tell a site is on the wrong rate covers the signs.
Check: the schedule is the one you expect, and it has not changed since last month.
Read the charges line by line
With the meter, period, usage, demand and schedule confirmed, the charges are arithmetic. Most commercial bills group them like this.
| Line | What it is | What to check |
|---|---|---|
| Service charge | A fixed monthly fee for the account | Same as last month unless the tariff changed |
| Energy charge | kWh times a price, sometimes split by time of day | kWh matches the usage section |
| Demand charge | Billed kW times a price per kW | kW matches billed demand |
| Riders and adjustments | Separate charges for fuel, transmission or programs | Applied to the right base and period |
| Taxes and fees | Sales tax, franchise fees, city charges | Rate and any exemption on file |
Riders deserve a second look. They are separate tariff sheets that add or subtract charges, often per kWh, and many reset more often than base rates. When a billing period crosses a rider change date, the utility should prorate the old and new prices across the days.
Taxes and fees follow the service address. A site annexed into a city, or an address coded to the wrong city, can carry the wrong franchise fee or tax for years. If your organization holds a sales tax exemption, the utility needs the certificate on file for each account; your tax advisor confirms which exemptions apply.
Check: each charge recalculates from the quantity and the price printed beside it.
Payments, credits and late fees
The last section reconciles the account: previous balance, payments received, adjustments, new charges and the amount due.
Three lines here tend to hide problems. A late fee on a bill your team paid on time usually means a payment posted to the wrong account. A credit you were promised for a correction may not appear for one or two cycles. A deposit held since the account opened may be refundable under the tariff once the account has a payment history.
Check: last month’s payment posted to this account, and any promised credit shows.
Compare against last year
A bill read on its own tells you whether it is internally correct. It does not tell you whether the site is behaving normally. For that, put it beside the same month last year.
Three ratios do most of the work:
- kWh per day: divides out the different period lengths.
- Peak kW: shows whether something new is running at the busy hour.
- Cost per kWh: shows whether price moved, separate from usage.
Weather explains some of the difference. A changed schedule, longer hours or a new tenant explains more. A difference with no written reason is drift: the site has moved off its usual pattern and nobody has said why. Measuring that properly takes a signed-off baseline of 24 months of bills, the fixed mark we call the peg.
A 15-minute routine for each bill
Once a team has read a few bills in order, a routine check takes about a quarter of an hour per bill. Run these in sequence, because each step relies on the one before it.
- Service address, account and meter number match the site.
- Read dates and day count look normal; the read was actual.
- The multiplier is unchanged from last month.
- kWh equals the reading difference times the multiplier.
- Billed demand equals metered demand, or the tariff explains why not.
- The rate schedule is unchanged and expected for this site.
- Each charge recalculates from quantity and price.
- Last payment posted; no unexplained late fee or missing credit.
- kWh per day and peak kW are within reason against last year.
Most teams can run this on a handful of sites. With 40 sites and electric, gas and water at each, it becomes a full-time job, which is why utility bill tracking exists as a service: every bill captured, checked against the tariff and explained each month.
Try it on three bills
Pick three recent bills from different sites and walk them through the list above. If a line will not reconcile, or you are not sure what the rate schedule means, send them to us for a free Three-Bill Read. A utility analyst reads each one in this order and returns a written read in five business days, with every line explained and anything that looks off marked.
