HELSINKI, Dec. 22 (Xinhua) -- Finland's first shopping mall claiming to put out zero emissions of carbon dioxide is to be built in Pori, a western coast city in Finland, according to daily newspaper Helsingin Sanomat Tuesday.

    Construction on the complex with a surface area of about 55,000square meters is to begin in the autumn 2010. The estimated cost is about 100 million euros.

    Sustainable development has been taken into consideration in the project in the fact that the complex is within walking distance from Pori's central square. This avoids unnecessary driving typical to markets located out in the fields.

    The shopping mall will not be connected to the district heating network. Instead, the energy for both heating and cooling will come from geothermal energy.

    The shopping complex is to be built on the bank of the Kokemaki River. As the bedrock on the riverbank is very deep, the foundation of the new building will involve driving 650 steel or concrete piles 36 meters in length into the clay and moraine under the surface. Inside the piles there will be tubing for heat pumps, which will be used for heating the mall. In the summer, excess heat from the shopping complex will be pumped into the foundation piles, for use as heating in the winter.