Siemens to build self-sufficient smart microgrid in Finland

June 29, 2018 // By Nick Flaherty
Energy company Lempäälän Energia has commissioned Siemens to build a self-sufficient smart grid system in the industrial area of Marjamäki, Finland.

Siemens will design and build a smart medium-voltage microgrid, the corresponding grid automation system and an electrical storage system as part of the LEMENE project near Tampere.

After the microgrid is built, industrial businesses in the area can connect to the distributed energy system and can take part in different energy markets. If necessary, the energy system is also capable of independent off-grid operations by disconnecting from the national grid.

"Our goal is to create an energy community with decentralized generation of renewable energy," said Toni Laakso, CEO of Lempäälän Energia. "This involves ensuring the security of supply of the energy community and ensuring its functionality at all times. Automation plays an important role in the energy community, since it ensures the system's performance."

The energy will be produced by two solar panel fields, with an annual output of 3,600 MWh coming from over 15,000 panels, six gas motors and fuel cells. The site also uses combined heat and power production to maximize efficiency. When more energy is produced than consumed, the surplus can be offered to the national electricity transmission grid operator Fingrid.

"The project uses the latest micro grid technology solutions to balance and secure energy production in the area," says Thomas Zimmermann, CEO Digital Grids at Siemens Energy Management. "The combination of advanced control, distributed grid architecture and assets in form of microgrids will ensure the grid is operated as reliably, resiliently, and efficiently as possible."

Siemens will use its SICAM Microgrid Controller, which ensure reliable monitoring and controlling as well as blackout protection, and EnergyIP DEMS, which allows aggregation of decentralized energy system to provide ancillary service for utilities or trade energy in intraday market.

The LEMENE project is a key project for Finland with backing from the Ministry of Economic Affairs and Employment (MEAE).

www.siemens.com/energy-management


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