How I Cut My Austin Bungalow's Bill by 40% in One Summer

Let me break down the numbers. June ’26. I opened my utility bill and felt my stomach drop. $340. Same house. Same thermostat setting. Same cats chewing on things they should not chew. Last June, it was $200. That is a 70% increase. My fiancée asked me if I had left the windows open. I had not. The monopoly strikes again. I live in a 1960s bungalow in Austin, Texas. One thousand two hundred square feet. Two cats named Watt and Volt. A fiancée who likes the house at 72°F. Last summer, I paid $200 for electricity. This summer, the same usage cost me $340. Something had changed, and it was not my behavior. The Electric Bill Estimator can show you what changed on your bill.

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I did what any engineer would do. I opened a spreadsheet. I pulled my last 24 months of bills from the utility portal. I plotted usage in kilowatt-hours against cost. The usage line was flat. The cost line was not. From June ’25 to June ’26, my effective rate had gone from 12.4¢ per kilowatt-hour to 19.8¢ per kilowatt-hour. That equals a 60% rate increase. No announcement. No letter. No email. Just a number on a bill. The math tells a different story. A 60% rate increase on 1,700 kWh means $340 instead of $210. That comes to not inflation. That works out to utility greed. I started digging. I called the utility. After twenty-three minutes on hold, a representative told me the delivery charge had gone up. “Rider for grid hardening,” she said. “State commission approved it.” I asked for the filing number. She gave me something that sounded like a serial number. I looked it up that night. The monopoly had requested a 22% delivery rate increase and gotten 18%. Most customers would never see the notice. It was buried on page 47 of a PDF posted on a government website. I got angry. Then I got to work. The Smart Thermostat Savings Estimator helped me calculate my first fix.

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I already had an Ecobee. I bought it three years ago for $200. I was not using it right. I had set a schedule once and never touched it again. The schedule had me at 74°F during the day and 72°F at night. That means backward. For summer, you want setbacks when you are asleep or away, not when you are home. I reprogrammed it. Weekdays, 76°F from 10 AM to 6 PM (I am at work). 73°F from 6 PM to 10 PM (home, cooking, TV). 78°F from 10 PM to 6 AM (asleep with ceiling fan). Weekends, 75°F during the day, 72°F in the evening, 76°F overnight. The cats did not complain. My fiancée did. She said 78°F was too hot. I bought her a better ceiling fan. She stopped complaining. The result after one month: 23% lower cooling usage. That is not my number. That is the Ecobee data from 50,000 homes. My actual number was 19%. Not perfect, but real. The Electric Bill Estimator helped me track the savings month by month.

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My second fix was the attic. I crawled up there in July. It was 140°F. I do not recommend this. I had R19 insulation. Austin code now calls for R38. I bought 20 rolls of R19 unfaced fiberglass and laid it perpendicular over the existing stuff. Cost $700. Took me six hours. I was drenched. The cats watched from the hatch. The result after two weeks? My upstairs room stopped being an oven. My AC cycled less. My usage dropped another 8%. Third fix: the AC unit itself. I had not changed the filter in six months. I know. I am ashamed. I put in a MERV 8 filter and scheduled a maintenance check. The technician found a refrigerant leak. He fixed it for $250. My AC stopped short-cycling. My energy use dropped another 5%. Fourth fix: LED bulbs. I thought I had already switched. I counted 14 incandescent bulbs still burning in closets, the garage, and two lamps my fiancée loved. Those 14 bulbs were using 420 watts. LEDs use 140 watts for the same light. Savings? About $40 a year. Not huge, but money is money. The Solar ROI Calculator is for solar, but I used it to check whether solar would make sense. I put in my numbers. 1,200 square feet, 1,700 kWh average summer usage. The calculator said a 5 kW system would offset 85% of my usage. Payback period 8.5 years. I went ahead and not install solar this year, but I am saving for it. The running total. June bill: $340. After thermostat reprogramming: -19% = $275. After attic insulation: -8% = $253. After AC fix: -5% = $240. After LED swap: -2% = $235. Not $204. I took the time to not hit 40%. I hit 31%. My goal was aggressive, maybe too aggressive. But I am still $105 below where I started. That is $1,260 a year. My July bill came in at $202. August at $198. September at $210. Summer average down 33% from last year. The monopoly still got their rate increase. But I gave them less to work with. The Time-of-Use Rate Comparator helped me check if switching to a time-of-use plan would save more. I ran my summer data through the comparator. Peak hours were 2 PM to 7 PM. I was at work until 5 PM. I shifted my dishwasher and laundry to 9 PM. The comparator showed a potential 8% additional saving. I switched plans in October. My October bill was $85. Not a typo. Eighty-five dollars. My challenge to you. Beat my 33% reduction. I dare you. Start with your June bill. Not your average. Your June bill. Write down the number. Then do one thing. Change your thermostat schedule. That is free. See what happens. Then do another thing. Change your AC filter. $15. Then another. Seal your attic hatch. $20. Keep going until you beat me. The Home Energy Score Calculator can tell you where to start. I am not special. I am an energy auditor. I have access to tools. But the tools are free. You can use them too. You do not need to crawl into your attic in July. You need to open your bill and look at the number. Then change one thing. Then another. My bungalow is old. My AC is not efficient. My insulation was thin. But I cut my bill by a third. You can too. The monopoly counts on you not trying. Prove them wrong. 怎么停了？

How I Cut My Austin Bungalow's Bill by 40% in One Summer

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