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Home NEWS Science News Biology

Finland has the world’s most energy-saving supermarket

Bioengineer by Bioengineer
June 13, 2017
in Biology
Reading Time: 2 mins read
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Savings are also being achieved by levelling out power consumption peaks

Under VTT's leadership, Finland has the world's most energy-efficient supermarket, which consumes only 40% of the energy of a normal grocery store. A new solution is saving the retailer around EUR 180,000 in energy costs. The technology is now ready for use on commercial premises in general.

"On a sunny day, half of all electricity consumed by the low-energy supermarket is coming from the solar panels installed on the roof," says Project Manager and solar power plant designer Klaus Känsälä of VTT Technical Research Centre of Finland.

In addition, energy use can be managed by levelling out consumption peaks on the power grid. Renewable solar energy even enables the occasional disconnection of the shop's cold chain from grid electricity. For example, the mornings, when energy prices are low, are the best time to store kilowatts for later use.

"In this energy-saving pilot supermarket, annual electricity consumption totals 240 kWh per square metre, which is close to the consumption of a normal residence, whereas a normal grocery store consumes 600 kWh a year," says Seppo Jakola, Premises Manager of the regional retail firm, Osuuskauppa Arina.

"If all grocery stores in the S Group chain consumed 240 kilowatt hours, their electricity consumption would halve," says Känsälä.

The pilot supermarket in Oulu is part of S Group, whose stores use a total of around 1.1 terawatt-hours (TWh) of electricity per year, whereas the state railway company, VR, uses around 0.76 TWh on its trains. Total electricity consumption throughout Finland is around 85 TWh, of which S Group uses around 2%. If the same concept were introduced in all S Group grocery stores, this would have a major effect on Finland's energy balance.

The project is part of the larger VIRPA project and will end in April next year. In addition to VTT, the University of Oulu and, from the private sector, Fingrid, S Group, Rejlers, Jalecon, Jetitek, Green Energy Finland, Fidelix and Emtele are involved. The overall size of the project amounts to around a million euros.

The next step will involve bringing more commercial premises into the project.

###

Click here to see the energy consumption, in real time, of the supermarket S-market Tuira: http://smartgrid.vtt.fi/s-market/tuira/

Further information:

VTT
Klaus Känsälä, Project Manager, Senior Researcher
Tel. +358 40 546 0131
[email protected]

Further information on VTT:

Milka Lahnalammi-Vesivalo
Communications Manager
+358 40 5457 828
[email protected]
http://www.vtt.fi

VTT Technical Research Centre of Finland Ltd is the leading research and technology company in the Nordic countries. We use our research and knowledge to provide expert services for our domestic and international customers and partners, and for both private and public sectors. We use 4,000,000 hours of brainpower a year to develop new technological solutions. VTT in social media: Twitter @VTTFinland, Facebook, LinkedIn, YouTube, Instagram and Periscope.

Media Contact

Klaus Känsälä
[email protected]
358-405-460-131
@VTTFinland

http://www.vtt.fi/?lang=en

http://www.vttresearch.com/media/news/finland-has-the-world’s-most-energy-saving-supermarket-â€"-half-of-the-energy-it-consumes-is-solar-in-origin

############

Story Source: Materials provided by Scienmag

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