What is slamming and why does it happen
Slamming is the practice of switching a customer's electricity supplier without their authorization. It's illegal in every deregulated state, yet it continues to occur because the financial incentive is significant: switching a customer generates commission revenue for the sales agent, regardless of whether the customer actually agreed.
Slamming typically happens when a sales agent obtains your utility account number — either through deception or by accessing billing information left in mailboxes or recycling bins — and submits an enrollment on your behalf. The first sign is often a notice from your utility that your supplier has changed, or a higher rate on your next bill.
The practice thrives in markets with weak enforcement or where consumers don't closely monitor their bills. Understanding how it works is the first step toward protecting yourself.
The four most common scam patterns
Electricity scams follow predictable patterns. Knowing them makes them easier to spot.
1. Door-to-door sales claiming to be from your utility
A salesperson arrives at your door wearing an official-looking lanyard or carrying a clipboard. They claim to be from your utility — “We're here from [Utility Name] to discuss your account” — and ask to see your bill to “verify your rate” or “check for billing errors.”
This is misrepresentation. Your utility does not send door-to-door representatives to discuss rates or enroll you with competitive suppliers. If someone claims to be from your utility and wants to see your bill, they are lying about who they work for.
2. Phone calls using utility-impersonating caller ID
Caller ID can be spoofed to display your utility's name or a similar variation. The caller claims to be verifying your account, offering a special rate available only to long-standing customers, or warning that your rates will increase unless you “confirm” your enrollment in a protection program.
Your utility doesn't call to offer competitive rates. If you receive such a call, hang up. If you're concerned about your account, call your utility directly using the number on your bill.
3. Fake “rate verification” calls that extract account info
A caller claims to be verifying your rate or checking that you're receiving the correct credits. They ask you to confirm your account number “for verification purposes.” Once they have it, they submit an enrollment without your consent.
Never provide your utility account number to anyone who calls you. Legitimate suppliers don't need your account number until you've decided to enroll and initiated the process yourself.
4. “Free energy audit” follow-up enrollment scams
Some operations offer free home energy audits — checking insulation, reviewing appliance efficiency — as a pretext to access your utility bill. The auditor takes photos of your bill “for their records” or asks you to sign a “confirmation of the audit visit.” That signature becomes authorization for a supplier switch.
If you participate in a legitimate energy audit (many utilities offer them), ensure it's through your utility's official program, not a third party who showed up offering free services.
➤Compare licensed suppliers safely onlineHow legitimate suppliers approach customers
Legitimate competitive suppliers operate very differently from scammers. Understanding the contrast helps you identify bad actors.
Legitimate suppliers typically:
- Market through their websites. Most major suppliers maintain comparison listings and allow enrollment online or by phone when the customer initiates contact.
- Provide written disclosures before enrollment. They send or display a Plan Information Document that details the rate, term, fees, and cancellation terms.
- Give you time to decide. No legitimate offer expires in the next 15 minutes. Good rates are available consistently.
- Never claim to be your utility. A legitimate supplier clearly identifies their company name and explains that they are a competitive supplier, not your utility.
Red flags during a sales interaction:
- Pressure to decide immediately.“This rate is only available today” is almost always false.
- Claiming to be from your utility.They aren't.
- Asking for your account number upfront.You only need to provide this when you've decided to enroll.
- Refusing to provide written information.If they won't give you documentation to review, they're hiding something.
- Asking you to sign anything at the door.Legitimate enrollment doesn't require door-to-door signatures.
What to do if you've been slammed
If you discover your supplier was changed without your authorization, act quickly. Most states have streamlined dispute processes for slamming complaints.
Step 1: Document everything
Save any correspondence — door-to-door receipts, call logs, enrollment confirmations you didn't request. Note the date you discovered the unauthorized switch and gather bills showing the rate change.
Step 2: Contact your state's public utility commission
File a formal slamming complaint. In most states, this triggers an expedited investigation. The supplier must prove you authorized the switch; if they can't, you'll be switched back to your previous supplier at no cost.
Step 3: Request a billing adjustment
If the unauthorized supplier charged you a higher rate, you may be entitled to the difference between what you paid and what you would have paid. Your PUC complaint should include this request.
Step 4: Monitor your account
Check your subsequent bills to confirm the switch-back completed and you're no longer being charged by the unauthorized supplier.
State-by-state consumer protection
Most deregulated states have anti-slamming rules, but enforcement mechanisms vary. Key protections typically include:
- Verification requirements. Many states require suppliers to obtain third-party verification (TPV) recordings for phone enrollments, confirming the customer actually agreed.
- Rescission periods. Most states give customers 3-7 days after enrollment to cancel without penalty, even if they did agree initially.
- Door-to-door disclosure rules. Many states require written disclosures and cooling-off periods for in-person sales.
- Slamming penalties. Suppliers who slam customers can face fines, license suspension, or revocation.
Pennsylvania-specific protections
Pennsylvania has strong consumer protections administered by the PA Public Utility Commission. Key provisions:
- PA PUC license verification. You can verify any supplier is licensed through PA Power Switch. If a company isn't listed, they're not authorized to sell electricity in Pennsylvania.
- Office of Consumer Advocate. The PA OCA handles slamming complaints and can advocate on your behalf against suppliers.
- Door-to-door requirements. Pennsylvania requires suppliers engaged in door-to-door sales to follow specific disclosure rules and provide a three-day right to cancel.
How to protect yourself proactively
Prevention is easier than remediation. A few simple practices dramatically reduce your risk of becoming a scam victim.
Guard your utility account number
Your account number is the key to your electricity service. Don't share it with anyone who contacts you unsolicited. Shred bills before disposing of them. If you receive mail with your account number visible through the envelope window, retrieve it promptly.
Initiate contact yourself
When you want to shop for electricity rates, go to your state's official comparison site (like PA Power Switchin Pennsylvania) or directly to suppliers' websites. Don't rely on unsolicited contacts.
Verify before engaging
If someone contacts you claiming to represent a supplier, don't engage on their terms. Get the company name, hang up, and call the supplier directly using contact information from their official website. Legitimate companies won't mind this verification step.
Review your bills monthly
Check that your supplier name hasn't changed. If you see an unfamiliar company listed as your generation supplier, investigate immediately.
Frequently asked questions
How can I tell if a sales call is legitimate?
Legitimate suppliers will clearly identify themselves by name, offer to send written information before you commit, never pressure you for an immediate decision, and never ask for your utility account number unless you've initiated the enrollment. If someone claims to be from your utility but is offering to change your supplier, that's a red flag — utilities don't make outbound sales calls for competitive suppliers.
What should I do if I think I was slammed?
Contact your state's public utility commission immediately. Most states have expedited slamming complaint processes. In Pennsylvania, file a complaint with the PA PUC through their online system or by calling the consumer helpline. You may be entitled to be switched back at no cost and have any charges during the unauthorized period adjusted.
Can my utility's sales rep enroll me with a competitive supplier?
No. Your utility does not sell competitive supply service and does not employ door-to-door sales reps for supplier enrollment. If someone claims to be from your utility and wants to discuss your supply rate or enroll you with a different company, they are misrepresenting themselves. Utilities handle delivery; competitive suppliers handle generation. They are separate companies.
Why do door-to-door electricity sales reps target certain neighborhoods?
Door-to-door sales operations often target neighborhoods with high default-service rates, older homeowners who may be less familiar with deregulation, or areas where they believe residents are less likely to verify claims online. This targeting isn't illegal, but the high-pressure tactics sometimes used in these campaigns often are. No matter where you live, you have the right to research any offer before committing.
Is there a “do not call” list for energy sales?
The National Do Not Call Registry applies to energy sales calls. Register your number at donotcall.gov. Door-to-door sales are not covered by the registry, but many states have separate regulations governing in-person energy sales, including required disclosures, cooling-off periods, and prohibitions on misrepresentation. Check your state PUC's website for local rules.
