Question

using co - generation to create electricity can help improve efficiency in power plants to as high as which of these? 90% 10% 25%

Explanation:

Co - generation (also known as combined heat and power, CHP) is a technology that simultaneously produces electricity and useful heat from a single energy source. In power plants using co - generation, the efficiency can be significantly improved. Conventional power plants that only produce electricity have much lower efficiencies, often around 30 - 40% or less. But with co - generation, by utilizing the waste heat that would otherwise be lost, the overall efficiency of the power plant can reach up to around 90%. The options of 10% and 25% are much lower than what co - generation can achieve.

Answer:

90%