How to Read Your Electric Bill Line by Line (and Ask AI Why It's High)

Quick answer: Find four things first: the billing period (how many days), the kWh you used, the price per kWh, and the fixed monthly charge. Most of your bill is kWh used times the price, split into a "delivery" part and a "supply" (or "generation") part, plus a set customer charge and taxes. If the bill jumped, compare kWh to the same month last year and check whether the meter reading says "estimated." Then paste the numbers (not your account number) into an AI chat and ask it to explain the change.

What a kWh is, in plain words

A kilowatt-hour (kWh) is how electricity is measured. Something that uses 1,000 watts, running for one hour, uses 1 kWh. A 1,500-watt space heater running 5 hours a day uses about 7.5 kWh a day, or roughly 225 kWh over a 30-day month. That is why one heater, dryer, or old fridge in the garage can move a bill a lot.

The line items

Utilities use different names, but most bills have these parts.

Gas, water, phone or TV bill instead? Our plain-English bill glossary explains terms like therms, CCF, sewer charges and the Universal Service Fee.

How to read it, step by step

1. Check the dates. Count the service days. Divide the total by the days to get a cost per day; that is a fairer comparison than month to month.
2. Find your kWh and compare. Most bills show a 12- or 13-month usage chart. Compare this month to the same month last year, since heating and cooling change everything.
3. Look at the meter reading type. "Actual" means someone or a smart meter read it. "Estimated" means the utility guessed. A run of estimates can be followed by a big catch-up bill.
4. Work out your all-in price per kWh. Divide the total electric charges (before old balances) by the kWh used. If that number went up, the rate or an adjustment changed, not just your usage.
5. Read the delivery and supply sections separately. If you chose a third-party supplier, check whether an intro rate ended.
6. Scan for new or one-time items. A late fee, deposit, or "adjustment" line deserves a question.
7. Check payments and the due date. Confirm your last payment posted, and note any autopay date.

Why your electric bill might be higher

• Weather. A cold snap or heat wave is the most common reason. Here's how to lower your winter heating bill without getting too cold.
• More days in the billing period.
• An estimated reading being corrected.
• A rate change or fuel adjustment. Utilities usually announce these in a bill insert or notice.
• A supplier's intro rate ended.
• New or failing appliances, like a space heater, a second fridge, a hot tub, an electric car, or a heat pump running on backup heat. If an appliance seems to be acting up, here's how to fix a home appliance with AI, from error codes to when to call a pro.
• People home more, such as a new baby, a guest, or working from home.

Prompts to ask AI

Take out your name, address, and account number first (see what not to share with AI). Then paste the numbers and try one of these.

Here are the lines from my electric bill: [paste line items and amounts]. Explain each line in plain words, like I'm new to this.

This bill covers [X] days and [Y] kWh. Last year's same month was [Z] days and [W] kWh. The total went from $[A] to $[B]. Work out the cost per day and the price per kWh for both, and tell me whether the increase is mostly usage, rate, or days.

My meter reading says "estimated." What does that mean, and what should I ask the utility?

I run a [1,500]-watt space heater about [5] hours a day. Roughly how many kWh is that a month, and what would it cost at $[price] per kWh?

Write a short, polite message to my electric company asking why my bill went up and whether my meter reading was actual or estimated. Keep it under 120 words.

AI is good at the math and the vocabulary. It does not know your utility's exact rules, so check anything important against your bill's back page or the utility's website.

Red flags to watch for

• A sudden spike with no change in weather or habits
• Fees you have never seen before
• Estimated readings for several months in a row (your meter may not be getting read)
• A rate change you were not told about
• A supplier name you do not recognize (someone may have switched you without asking)
• A call, text, or knock demanding immediate payment by gift card, wire, or crypto to avoid shutoff. Real utilities do not ask for that. Hang up and call the number printed on your bill. Our Scam Red-Flag Checklist can help.

If something looks wrong

1. Call the number on your bill and ask them to walk you through it. Ask whether the reading was actual or estimated.
2. Ask for a meter re-read or test if the usage makes no sense.
3. Ask about payment help. Many utilities offer budget billing (the same amount each month) or payment plans. In the US, the federal LIHEAP program helps eligible households with energy bills.
4. Put a dispute in writing if the call doesn't fix it. Our dispute letter guide has a template you can adapt.
5. Contact your state's utility commission if the utility won't resolve it. Most states have a consumer complaint line.

If the confusing part is a letter or notice about a rate change, see how to understand a confusing letter with AI.

Frequently asked questions

What is the difference between delivery and supply charges?

Delivery is the cost of getting electricity to your home over the poles and wires. Supply (also called generation or energy) is the cost of the electricity itself. Together, they make up most of the bill.

Why do I pay a charge when I use almost no electricity?

Most bills include a fixed customer or basic service charge that covers things like the meter and billing. You pay it every month no matter how much you use.

What does "estimated reading" mean on my bill?

The utility did not get an actual reading and guessed your usage. When a real reading comes in, the next bill is corrected up or down, which can cause a surprise.

How do I figure out my price per kWh?

Divide your total electric charges (not counting past-due balances) by the kWh used. That gives you an all-in price you can compare month to month or between suppliers.

Is it safe to paste my electric bill into ChatGPT?

Paste the numbers and line names, not your name, address, or account number. That is all the AI needs to explain it.