Which of the following is not included in the types of distributed generation?

Distributed generation refers to a variety of small-scale power generation technologies that are typically located close to the facilities they serve, as opposed to large centralized power plants. This includes renewable energy sources and other technologies that can generate electricity locally.

The correct answer, coal-fired power plants, are large-scale facilities that generate electricity through the combustion of coal. They are centralized sources of power that feed into the broader electrical grid from a significant distance, which is contrary to the concept of distributed generation. In contrast, solar panels, micro-turbines, and fuel cells are all examples of distributed generation technologies.

Solar panels convert sunlight directly into electricity and can be installed on rooftops or in small solar farms, enabling local energy production. Micro-turbines are small, modular power generation systems that can produce electricity and heat on-site. Fuel cells generate electricity through electrochemical reactions, also enabling localized energy production. Each of these examples exemplifies how distributed generation technologies can help improve energy efficiency, reduce transmission losses, and enhance energy security for users.