Do utility companies have a pure monopoly?

Utility companies often operate as regulated monopolies, meaning they are the sole provider of essential services like electricity, water, and gas in a specific geographic area. This is due to the high infrastructure costs and the need for extensive networks, which make competition impractical. While they face some regulatory oversight to prevent abuse of power and ensure fair pricing, they do not typically have pure monopolies since alternative energy sources and technologies can provide competition, albeit limited.