Which type of renewable energy generator is included in distributed generation?

The correct answer is related to the concept of distributed generation, which refers to electricity generation performed at or near the point of use, often involving smaller-scale power sources. Reciprocating engines, particularly when used in combined heat and power (CHP) systems or as part of microgrids, can be used for distributed energy generation.

These engines can be powered by various fuels, including renewables like biogas or synthetic fuels, which can make them a component of a decentralized energy system. Their size and modular nature allow for easier installation at locations where the energy demand occurs, which embodies the principles of distributed generation more closely.

In contrast, wind turbines, while they can be part of a distributed generation system, are typically considered larger installations and can also be aggregated into larger wind farms that serve a grid. Natural gas plants and nuclear reactors are large, centralized generation sources, which do not fit the distributed generation model as they require significant infrastructure and are usually located far from the end-users.