Energy price caps are a common policy tool designed to limit the maximum price that suppliers can charge consumers for electricity and gas. While intended to protect households from volatile wholesale markets, these caps create a complex set of trade-offs between consumer welfare, supplier viability, and long-term investment in energy infrastructure.
The effectiveness of price caps depends heavily on their design and the broader market context. When set below the cost of supply, caps can lead to supplier insolvencies and reduced competition, as witnessed in several European markets during the 2022 energy crisis. Conversely, well-calibrated caps that adjust periodically to reflect underlying costs can provide a safety net while preserving market signals. Policymakers must therefore balance immediate consumer protection against the need for sustainable energy investment and supply security.