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 Technical understanding and engagement help the company to gain a lot when it comes to energy efficiency. An energy advision from professionals still finds further potential for an optimized energy input. Even Heinz-Herbert Berger, manager of Tauscher Transformatorenfabrik GmbH, learned this.
When the company, that produces 0,1 voltampere up to 250 kilovoltampere strong transformers, moved into a new building, Berger invested in an energy efficient equipment by taking care of proper insulation and heating technology. Like this he reached the EnEV-standard 2007. The walls of the approximately 30 year old bulding were isolated with 15 centimeter thick rockwool. The same material also insulates the roof from the inside. Two cogeneration units with each 18 kW power supply electricity and heat, in winter a small oil-fired heating boiler deals with peak loads.
Even about the lighting, Berger pondered a lot: The building is 4000 mm² big, and there’s not always people everywhere. With a new circuit the light can now be controlled for separate parts. If there is enough daylight, light sensors help to dim or shut down the illumination. When Tauscher had a free energy check, which the company won at a tombola of profi.news, energy adviser Alexander Debera and Josef Zenger from E.On Bayern Vertrieb still found further possibilities to save energy. Like in the dry heaters, which run during night, to dry transformers: If those aren’t turned on by workers, but after 6 P.M. by a timer, they still reach the needed working temperature in time, but then they heat up with electricity of the low tarif zone. Like this each heater saves 600 Euros every year. Furthermore the undertable fluoroscopy systems, which supply warm service water on their own, whould be turned off at the end of the work day by timers. Another 200 Euros each year can be saved, if the computers and screens are taken off the net every evening by a socket that can be disconnected, because when they are in Stand-by, a computer with screen still needs around 20 W. Alexander Debera and Josef Zenger also suggest LED illumination, which could be installed with the next maintenance. They don’t need a starter or preswitched devices and save around five percent compared to normal energy saving bulbs. Also a cost reduction: LED illumination lasts around 50.000 hours. Advisable is also the insulation of pipings and fittings of the heating distributor. According to the EnEV 2009, this will be compulsory in unheated rooms latest in January 2012.
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