AI Bots in Power Markets Learn to Raise Your Electric Bill

Electricity is increasingly priced by AI, not humans. Power companies use learning-based algorithms to decide how much to bid for selling energy each day. This study tested what happens when those AI agents interact repeatedly in a market with only a few big players — a setup common in real life.

Surprisingly, the AI agents never conspired. They weren't programmed to cooperate or communicate. But through trial and error, they each discovered that keeping prices high wasn't punished, so they all just... did it. The result: prices stayed above a competitive level, boosting company profits at your expense. Researchers call this "tacit collusion" — like two gas stations silently matching each other's high prices without ever shaking hands.

This isn't just theoretical. Real electricity markets already use AI bidding, and regulators worry that this kind of silent price-fixing is hard to detect. Traditional rules against collusion assume humans agree to fix prices. But if machines simply learn to avoid undercutting each other, how do you prove intent?

The study suggests that AI-driven markets may need new oversight — not just watching for suspicious meetings or emails, but monitoring algorithmic behavior itself. For everyday people, the practical takeaway is simple: your electricity bill could be quietly higher because an AI figured out that not competing is more profitable. Regulators may need to step in before this becomes the norm.