Estonian transmission system operator. Wärtsilä has been responsible for the EPC-delivery (engineering, procurement and construction) of the plant and for the project management.
The new Smart Power Generation power plant will provide emergency power in case of sudden drops in the electricity supply. The plant is activated when there is a failure in the grid or in other power plants serving the grid. The capacity is sufficient to cover one-sixth of Estonia's peak electricity consumption in the winter, thus providing a significant improvement to the country's energy security.
To avoid blackouts, an emergency reserve power plant needs to be able to start up as rapidly as possible. Thanks to the agile internal combustion engine (ICE) technology, Elering's emergency reserve power plant can be started and ramped to its full load of 250 MW in less than 10 minutes.
The power station consists of 27 Wärtsilä 34DF engines, which operate mainly on natural gas but can switch to light fuel oil as a back-up fuel. The fuel efficiency of 45 percent is exceptionally high for an emergency plant. Higher efficiency produces more energy from the same amount of fuel and less carbon emissions.