How to Read Your Electric Bill Like an Energy Auditor

Most people open their electric bill, look at the amount due, and pay it. That is what the monopoly wants. They bury the real story in five lines of jargon. Customer charge. Energy supply. Delivery charge. Regulatory fee. Environmental surcharge. It sounds official. It sounds necessary. Some of it is. Most of it is not. The Electric Bill Estimator can help you decode each line.

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Electric Bill Estimator

Enter your zip code, home size, and usage — see estimated monthly and seasonal costs.

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I have audited 600 homes. I have seen every utility bill in Texas. The format changes, but the math does not. This is how to read your bill like an auditor. The Appliance Cost Calculator can help you track your usage by device.

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Appliance Cost Calculator

Estimate annual cost for each appliance — find your biggest energy hogs.

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To startfind your total kilowatt-hours. That equals the only number that matters for usage. Not the dollar amount. The kWh. Write it down. Compare it to last month. Compare it to last year. If your usage went up, your behavior changed. If your usage stayed the same and your bill went up, the rate changed. Let me break down the numbers. Rate equals total bill divided by total kWh. June ’26, my bill was $340, my usage was 1,700 kWh. Rate was 20¢/kWh. June ’25, my bill was $200, usage 1,650 kWh. Rate was 12.1¢/kWh. My rate went up 65%. My usage went up 3%. The rate hike caused the bill shock. The Time-of-Use Rate Comparator can help you see if your rate structure changed.

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Time-of-Use Rate Comparator

Enter your hourly usage pattern — see whether a TOU plan saves or costs you money.

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Next uplook at the delivery charge. This is the monopoly’s favorite hiding spot. In Texas, the delivery charge is the cost of moving electricity from the power plant to your house. Wires, transformers, substations, poles. In 2025, utilities requested $31 billion in rate hikes. Most of that was for delivery. Not supply. Delivery. My friend Mark’s delivery charge jumped from 12¢/kWh to 35.9¢/kWh. That comes to a 200% increase. He never saw it coming. He was on autopay. Thenlook at the supply charge. This is the cost of generating electricity. Natural gas, coal, wind, solar. In Texas, supply charges are deregulated. You can choose your provider. If you are on a fixed-rate plan, your supply charge is stable. If you are on a variable plan, it can spike. I recommend fixed-rate. The Solar ROI Calculator can help you decide if solar would eliminate your supply charge. Alsolook at the regulatory fees. These are small. Usually $2 to $10 per month. They pay for the Public Utility Commission, system reliability, and low-income assistance. You cannot avoid them. Do not waste time on them. Finallylook at the taxes. Sales tax, city tax, county tax. In Austin, the combined rate is 8.25%. You cannot avoid these either. The Home Energy Score Calculator can help you prioritize what to fix first. Now, here is what most people miss. The bill is not the problem. The usage is. You cannot control the rate. The monopoly controls the rate. You can control your usage. Look at how to find your usage hogs. Look at your bill for the past 12 months. Find the month with the highest kWh. For me, it is August. Last August, I used 1,900 kWh. I looked at my behavior. My AC was set to 72°F 24/7. My pool pump ran 12 hours a day. My old fridge in the garage was running constantly. Those three things accounted for 1,200 of the 1,900 kWh. The Smart Thermostat Savings Estimator helped me reprogram the AC. I changed my schedule to 78°F during work hours, 80°F overnight. I saved 300 kWh a month. I bought a timer for the pool pump. I set it to run from 9 AM to 1 PM, when my solar was generating. I saved 200 kWh a month. I unplugged the garage fridge. It was empty anyway. I saved 150 kWh a month. Total reduction: 650 kWh a month. At 20¢/kWh, that is $130 a month. $1,560 a year. The monopoly still got their rate hike. But I gave them less to charge. The Time-of-Use Rate Comparator can help you decide if shifting your usage to off-peak hours is worth it. My friend Mark switched to a time-of-use plan after his delivery charge shock. He now runs his pool pump and dishwasher after 9 PM. His effective rate dropped from 35.9¢/kWh to 12¢/kWh. He saved $200 a month. Your action plan. Get your last 12 bills. Enter the data into a spreadsheet. Date, kWh, total bill. Calculate your effective rate each month. If it jumps, call the utility. Ask why. Find your highest usage month. Identify the biggest hogs. AC, pool pump, water heater, old fridge, electric dryer. Measure their run time. Reduce it. Look at your rate structure. Are you on flat rate, tiered, or time-of-use? If you are not sure, call the utility. Ask. If you can shift usage to off-peak, switch. The Solar ROI Calculator can help you see if solar is cheaper than paying the monopoly. My solar system covers 85% of my usage. My bill is now $200 a year, not $200 a month. The monopoly gets almost nothing from me. Reading your bill like an auditor is not hard. You just need to look. The monopoly counts on you not looking. They count on autopay. They count on confusion. Stop being a customer. Start being an auditor.

How to Read Your Electric Bill Like an Energy Auditor

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