CHP units up to 401 kWel and 549 kWth

Tailor-made energy concepts for applications requiring a medium output in municipal buildings, and industrial and commercial enterprises.

A gas driven combined heat and power unit (CHP) generates heat and power simultaneously. They are sized to suit residential units and commercial operations. On the heating side, the CHP unit operates in parallel to a boiler. For generating heating water and DHW heating, both heat sources are connected to the heating system.

The compact appliances from ESS, member of the Viessmann Group since 2008, are focused on decentralised CHP units with a bias towards heating. Comparatively small units generate electric power for consumption on site. The heat that is generated by this process is used simultaneously, almost without losses, for heating. Any power not required is fed into the public grid and reimbursed accordingly by the power supply utility. The overall efficiency of CHP units can be up to 95%. This enables the Vitobloc 200 module EM-18/36 to achieve a thermal efficiency in excess of 63% and an electrical efficiency in excess of 32%.

Heating with biogas benefits the environment

A CHP unit can also be operated with particular environmental responsibility when using biogas – in which case, its operation is CO2 neutral. This way, users can make themselves independent of fossil fuels such as natural gas, since biogas is a locally generated fuel. BIOFerm, which is also a member of the Viessmann Group, designs and builds plants for the generation of biogas. The biogas generated in these plants is ideal for the operation of a CHP unit.