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Naistenlahti 3, a new power plant to Tampere

The new Naistenlahti 3 power plant will replace the Naistenlahti 2 power plant that has reached the end of its technical lifetime. The value of the investment is approximately EUR 160 million. The power plant will be ready for commercial use at the end of the year 2022.

“Tampereen Sähkölaitos took a turn towards sustainable energy production in 2010 and started to systematically use more and more renewable energy sources and lower its CO2 emissions. Our goal is a 95 percent decrease in emissions by the end of 2030. Thanks to the Naistenlahti 3 boiler plant, our CO2 emissions will reduce significantly, and the share of renewable energy sources will increase,” says Antti-Jussi Halminen, Director at Tampereen Sähkölaitos.

Renewable biomasses

The Naistenlahti 3 plant will be fueled mainly by renewable biomasses, while milled peat will remain as a secondary fuel. With a steam capacity of 191 megawatts, it will run as a base load plant for district heat production from September to June.

The plant concept is based on combined heat and power (CHP) production, and it uses the existing old steam turbine and its auxiliary systems, such as the flue gas heat recovery system. Thanks to the condensation of the water vapor in the flue gas, the total efficiency ratio of the new plant is about 112 percent based on the fuel’s effective heating value.

The new power plant will be built between the Naistenlahti 2 boiler and Lake Näsijärvi. Special attention has been paid to its architecture. The façade facing the lake, for example, will feature aluminum profiles in diverse shapes.

The biomass-fired boiler plant to Naistenlahti power plant will be delivered by Valmet. Valmet’s turnkey delivery includes a CFB boiler plant utilizing circulating fluidized bed (CFB) technology. The delivery extends from the boiler silos to the existing flue gas heat recovery system. Additionally, Valmet will construct a separate building for electrical appliances and deliver a bag house filter that will be installed on top of it.

Information about Tampereen Sähkölaitos Oy

Tampereen Sähkölaitos is a modern energy group that produces renewable energy and actively develops future energy solutions in Finland. Through its systematic development work, the company lowers CO2 emissions from its energy production and creates jobs for the surrounding area. In 2019, the group’s net sales amounted to EUR 288 million, and it employed nearly 400 professionals.

Visit website: www.sahkolaitos.fi

Carbon emissions will be reduced by 95% between 2010 and 2030. In 2020, the share of renewable energy sources will be 90%.