What is MicroCHP?

Micro-combined heat and power systems, also known as “cogeneration” systems, provide heat and electrical power in an efficient, cost effective, and environmentally friendly manner.

What is micro combined heat and power (mCHP)?

Micro combined heat and power, micro-CHP, μCHP or mCHP is an extension of the idea of cogeneration to the single/multi family home or small office building in the range of up to 50 kW. [ 1 ]

What is a micro-CHP based fuel cell system?

The majority of micro-CHP systems coming available into the market are in the 1 – 5kWe range and are considered electric-led. This means that they are running continuously and providing base load power with the heat generated satisfying the domestic hot water needs. The schematic below is representative of a micro-CHP based fuel cell system.

How does a micro-CHP system work?

When used primarily for heating, micro-CHP systems may generate more electricity than is instantaneously being demanded; the surplus is then fed into the grid. The purpose of cogeneration is to make use of more of the chemical energy in the fuel.

What heat sources can be used with micro-CHP?

Some of the heat sources and fuels that are being considered for use with micro-CHP include: natural gas, LPG, biomass, vegetable oil (such as rapeseed oil), woodgas, solar thermal, and lately also hydrogen, as well as multi-fuel systems.

Are micro-CHP systems a good investment?

Micro-CHP systems are flooding the U.S. market. However, manufacturers have seen only niche market sales. The costs of mCHP systems vary widely, but are generally high; and potential savings are highly dependent on installation circumstances.