Siemens, Germany's industrial major, is currently supplying Oslo’s subway system with environmentally friendly trains that consume 30 percent less energy than the old units. In Oslo, it was important for Siemens to be able to ensure operational safety for the subway system even at extreme subzero temperatures. A couple of other things were necessary as well: effective heating system, windshield defrosters and a robust construction that would be able to handle heavy snow loads. Deliveries of the new subway trains are scheduled to be completed in the summer of 2009. Source
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