Blokkilämpö

Blokkilämpö, often translated as block heating, is a district heating system primarily used in Finland. It is a type of combined heat and power (CHP) generation where a single facility produces both electricity and heat. The term "blokki" refers to the modular nature of these power plants, which often consist of several independent blocks or units.

These block heating plants typically burn solid fuels such as wood, peat, or waste materials. The combustion process generates steam, which is then used to drive turbines for electricity production. A significant portion of the heat generated during this process is recovered and supplied to the district heating network, providing warmth for buildings in a localized area. This co-generation of electricity and heat is more energy-efficient than producing them separately.

The primary advantage of blokkilämpö systems is their efficiency and their ability to utilize local, often renewable, fuel sources. This can lead to reduced reliance on imported fossil fuels and lower carbon emissions compared to traditional heating methods. However, the environmental impact depends heavily on the type of fuel used and the emission control technologies employed. The modular design allows for flexibility in capacity and can be scaled to meet the heating and electricity demands of specific urban or industrial blocks.