Renewable energy

We are one of the largest renewable energy producers in Estonia and the Baltic countries with the most diverse production portfolio. We produce electricity and heat from wind, water, biomass, solar energy and municipal waste – which is burned instead of dumping in landfills. In addition, Enefit Green owns a pellet factory in Latvia. Using renewable energy sources preserves Estonia's environment.

Wind energy

Enefit Green has 20 wind farms in Estonia and Lithuania with the total number of 165 wind turbines. The total capacity of all wind farms is 398 MW, which yearly produce about 1 TW/h of electricity.

With this amount it is possible to supply the annual electricity needs of about 330 000 regular households. If we compare it with the electricity produced from oil shale in Narva power plants, then at the given production volume approximately 940,000 tons of CO2 is not emitted into the air per year.

Enefit Green's biggest wind farm is Šilute located in Lithuania and built in 2016. The park consists of 24 2,5 MW powered wind turbines with the total capacity of 60 MW.

Its prognosed annual capacity is 230 GW/h which can supply the annual electricity needs of more than 76,600 households.

The biggest wind farm in Estonia is Aulepa with the total capacity of 48 MW. Aulepa's 16 wind turbines produce about 80 GW/h of electricity which can supply about 32,000 regular households for one year.

Wind energy is increasingly useful, but its use is subject to certain limitations. For example, only a certain number of wind turbines can be connected to the power grid. As wind speeds vary, wind farms cannot guarantee a stable supply of electricity and, thus, cannot be counted on as a dispatchable and predictable source of electricity production.

Built in Nr of wind turbines Total capacity Annual average production
Virtsu I 2002 4 2,6 MW 6,6 GWh
Pakri 2005 8 18,4 MW 45 GWh
Esivere 2005 4 8 MW 17 GWh
Viru-Nigula 2007 7 21 MW 42 GWh
Virtsu II 2008 3 6,9 MW 15 GWh
Šudenai 2008 7 14 MW 29 GWh
Aulepa 2009 16 48 MW 80 GWh
Vanaküla 2009 3 9 MW 16 GWh
Tooma I 2010 8 16 MW 37 GWh
Virtsu III 2010 3 6,9 MW 15 GWh
Mockiai 2010 6 12 MW 36 GWh
Aseriaru 2011 8 24 MW 51 GWh
Narva 2012 17 39 MW 71 GWh
Šilale 2012 6 22,5 MW 40 GWh
Ciuteliai 2012 17 39,1 MW 100 GWh
Paldiski I 2012 9 22,5 MW 52 GWh
Paldiski II 2013 9 22,5 MW 52 GWh
Ojaküla 2013 3 6,9 MW 16 GWh
Tooma II 2016 3 7,05 MW 19 GWh
Šilute 2016 24 60 MW 230 GWh

Solar energy

The use of solar energy is picking up momentum around the world. By the end of 2018, there were over 500 GW worth of grid-connected solar panels installed globally, capable of supplying 2,2 percent of the world's electricity needs.

The diversification of solar power is also one of Enefit Green's strategies in order to fulfill ambitious plan of growth. At this moment, Enefit Green has 39 solar plants in Estonia and Poland with the total capacity of 26 MW.

Solar energy is becoming increasingly affordable to consumers, which is why we are developing new solar parks and providing our customers with modern solar energy based power solutions.

This is a convenient and comprehensive service for business customers, covering the installation, operation, maintenance and financing of the system.

Waste-to-energy

The Iru waste-to-energy unit can produce heat and electricity from up to 250,000 tonnes of mixed-municipal solid waste a year. The large-scale landfilling of mixed-municipal solid waste in Estonia has ended largely owing to the Iru waste-to-energy unit. Nearly 300,000 tonnes of mixed municipal solid waste is generated in Estonia after domestic sorting every year. The calorific value of such waste is equivalent to that of oil shale and wood chips.

The Iru waste-to-energy unit produces up to 310,000 MWh of heat and up to 134,000 MWh of electricity in a year, which roughly corresponds to the electricity consumption of the town of Paide and its surrounding villages. The Iru waste-to-energy unit can also burn chipped-waste tires to obtain energy, thus helping solve a major environmental issue. The unit can process up to 5,000 tonnes of scrap tires a year without any additional environmental impact.

Waste-to-energy unit of the Iru power plant
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Biomass

Enefit Green uses biomass for electricity and heat production in the Paide power plant and in the Valka power plant in Latvia. The biomass used consists of low-grade timber or brush that is unsuitable for the wood and paper industries. Timber industry waste is also used.

Estonia has large biomass reserves. The environmental sustainability of using biomass and ample local reserves makes biomass an important renewable energy resource with a great potential for Estonia.

Paide power plant
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Valka power plant
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Hydropower

Although Estonia has no natural conditions for large-scale hydropower production, it is still quite reasonable to use the resources available. Producing electricity from water is environmentally friendly, as no greenhouse gases are emitted into the air.

Estonia has an estimated theoretical hydropower potential of up to 30 MW, of which 10 MW is realistically usable. The total capacity of about 50 hydroelectric power plants in Estonia is currently approximately 9 megawatts.

Enefit Green produces hydroelectric energy at the Keila-Joa hydroelectric power plant with a capacity of 365 kW.