HomeEnvironment & EnergyFossil FuelsWhat is Combined Heat and Power?
Environment & Energy·2 min·Updated Mar 16, 2026

What is Combined Heat and Power?

Combined Heat and Power

Quick Answer

Combined Heat and Power (CHP) is a technology that generates electricity and captures usable heat simultaneously from the same energy source. This process improves energy efficiency by utilizing the heat that would otherwise be wasted.

Overview

Combined Heat and Power (CHP) systems are designed to produce both electricity and useful thermal energy from a single fuel source, such as natural gas or biomass. The process begins with a fuel being burned to generate electricity, and the excess heat from this process is captured and used for heating purposes, such as space heating or hot water. This dual production significantly increases overall energy efficiency compared to traditional methods, where heat is often discarded into the environment. One real-world example of CHP can be found in hospitals, where the demand for both electricity and heat is high. By implementing a CHP system, a hospital can generate its own electricity while also providing heating for its facilities, reducing energy costs and carbon emissions. In the context of fossil fuels, CHP can help to make better use of natural gas, which is a cleaner-burning fossil fuel compared to coal or oil, thus supporting a transition to more sustainable energy practices. The importance of Combined Heat and Power lies in its ability to reduce energy waste and lower greenhouse gas emissions. By harnessing the heat that would typically be lost, CHP systems can contribute to energy savings and environmental benefits. As cities and industries look for ways to improve energy efficiency and reduce their carbon footprints, CHP presents a viable solution that aligns with goals for cleaner energy production.


Frequently Asked Questions

CHP improves energy efficiency by capturing and utilizing heat that would otherwise be wasted during electricity generation. This allows for a more effective use of fuel, resulting in lower energy costs and reduced environmental impact.
CHP systems can use a variety of fuels, including natural gas, biomass, coal, and even waste heat from industrial processes. The choice of fuel often depends on availability, cost, and environmental considerations.
CHP systems are commonly used in facilities with high energy demands, such as hospitals, universities, and manufacturing plants. These locations benefit from the simultaneous generation of electricity and heat, leading to significant cost savings and efficiency improvements.