Put an AI Agent on Watch So Utility Teaser Rates Don't Cost You

The problem

Many states let you choose who supplies your electricity and natural gas. Your local utility still delivers it, but the supply part of your bill can come from a competing company, often through a state-run comparison marketplace. If you find the right offer, you can save real money on that part of the bill.

The catch: many of the best offers are teaser rates that end after 6 or 12 months. When the term ends, the plan often rolls onto a much higher variable rate, and nothing on your bill makes that obvious. It's easy to forget, and by the time you notice, you may have gone 3, 6 or 12 months paying far more than you needed to.

That's exactly what happened to me. My teaser rates for gas and electric expired during a very busy stretch, and I didn't get around to renewing for about six months. By then I'd been overpaying about $30 a month across the two bills, roughly $200 lost for nothing. I was pretty grumpy about that, so I decided to put an AI agent on the job.

For a sense of scale: if a home uses 1,000 kWh of electricity a month and the rate jumps from 7¢ to 12¢ per kWh, that's about $50 a month, or $600 a year, for electricity alone. Gas can add more. (Those numbers are only an illustration; your usage and rates will differ.)

What you need

• An AI agent: an AI assistant that can keep your files and act on a schedule. You put your bills and contracts in one place, ask it to compare them with the market, and let it check in on its own every month.
• A recent electric bill and gas bill. The supply rate and the usage are what matter.
• Your current supply contracts, if you've signed up with a competing supplier. The rate and the end date are the important parts.
• Your state's official comparison site (usually run by the state utility commission), to double-check any offer before you switch.

How it works

1. One project holds everything: your bills, your contracts and a few standing instructions, so the agent always has the full picture.
2. You ask for a comparison, and it gives you a few options against current market rates.
3. Every month, the agent checks on its own: the market rates and your contract end dates. You don't have to remember to ask.
4. You only hear about it when it matters: a better deal is available, or a contract is about to end.

Setting it up

1. Remove what you don't want to share. Before uploading, cover or crop out your account numbers, name and address, or just type the rates and dates into a note instead of uploading the whole bill. Then also tell the agent not to keep or repeat sensitive details (the first prompt below). Keep in mind that instructions only control what the agent repeats; anything in an uploaded file has still been uploaded, so redacting first is the safer habit.
2. Create a project (in Claude, it's called a Project) and add the instructions below.
3. Upload your recent bills and your current contracts.
4. Ask for a comparison using the second prompt below.
5. Check any offer you like on your state's official comparison site before switching. Read the terms: the length of the rate, what happens when it ends, and any early cancellation fee.
6. Put the agent on watch: create a monthly scheduled task using the third prompt, and turn on notifications so it can reach you.
7. Optional: add your contract end dates to your calendar too, as a backup.

Project instructions (the privacy filter):

These files are my electric and gas bills and supply contracts. Only use the supplier names, supply rates, usage, amounts, contract terms and end dates. Ignore and never repeat account numbers, names, addresses or anything else personal.

The comparison prompt:

Compare my current electric and gas supply rates with current market offers in my area, including my utility's default "price to compare." Give me three options with the rate, term length, cancellation fee and estimated yearly cost at my usage. Tell me where you got the current rates so I can verify them.

The agent's monthly check (scheduled task):

Once a month: check my current electric and gas supply rates against current market offers, and check my contract end dates. Notify me only if (1) a contract ends within 60 days, (2) I'm paying a variable rate after a contract ended, or (3) I could save more than about 10% by switching. Otherwise, no notification needed.

Upkeep

• Decide how hands-on you want to be. Uploading each new bill lets the agent track your spending over time and spot surprises. If that's too much work, upload a recent bill every few months and keep the contract dates current.
• When you switch, upload the new contract so the end date stays accurate.
• Read the agent's notification when it comes, and spend ten minutes acting on it. That's where the savings are.

What it doesn't fix

• The agent can be wrong about current market rates, especially if it can't look them up. Always confirm an offer on your state's official site or with the supplier before you sign.
• Delivery charges don't change. Switching suppliers only affects the supply part of your bill.
• Not every state offers a choice, and the rules differ by state and utility.
• It won't switch for you. The agent watches and warns; you still make the decision and sign up yourself.

The result: you'll never again forget when a utility contract ends, and you've got an agent watching the market and telling you when there's a better deal. For me, that's $200 I won't lose again. This describes what I do, not financial advice; the disclaimer has more.

Products named here are ones I bought and use myself. No sponsorships, no affiliate links.
I'm not a licensed electrician or other professional. Follow the product instructions and local codes, and call a qualified pro if you're unsure. Full disclaimer.