reciprocating-engines are a type of internal combustion engine used to generate electricity, often deployed in power plants for their operational flexibility and reliability.

Key Characteristics:

• Fast-Starting: Can ramp up and down quickly, making them ideal for balancing grids with intermittent renewable generation.
• Flexible Capacity: Capable of providing sustained generation over multi-day periods, a key advantage in grids requiring long-duration firming.
• Fuel Agnostic: Can operate on various fuels, including natural gas, lng, and increasingly, hydrogen.
• Brazilian Context: In brazil, reciprocating-engines (such as those supplied by [[Wärtsilä]]) are favored over bess for their ability to provide multi-day firming to a hydroelectricity-dominated grid exposed to drought risk, offering a lower levelized cost of capacity for this use case.