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For years, Tampere Hall has actively worked to strenghten ecological thinking and operated as a green value pioneer in Finland. Environmental responsibility is one of the most important values guiding our activity. In 2014, Tampere Hall was the first conference centre in the Nordic countries to receive the Nordic Ecolabel. What does the Hall’s environmental responsibility consist of? We’ve gathered a few examples below.
Tampere Hall is a carbon neutral building in using renewable energy. It has been using local electricity from Tammerkoski rapids since 2012, district cooling from Näsijärvi lake since 2015, and local heat energy by whole tree chips since 2019. In addition, the building uses the energy of its own solar power plants installed between 2017-2019.
In 2017 and 2019, two solar power plants were built on the roof of the Tampere Hall extension. Altogether 270 solar panels were installed on the roof. All the panels were placed on the roof, whose surface area is 1,600 m2. The solar power plant produces approximately 78,000-80,000 kWh per year. For comparison, Tampere Hall would operate for some two weeks with this amount of energy.
In 2016, a 20m2 greenhouse was placed on the roof of Tampere Hall, and it has been productive since the early days. The produce is well used in our restaurants. The visionary greenhouse solution, realised in cooperation with Hämeen Lasitoimi, is pioneering work in Finland. Restaurants such as Tuhto make use of the truly local food produced in the greenhouse: vegetables, berries, and other produce. For the 2018 harvest season, the rooftop garden was expanded to nearly twice its size.
In connection with the rooftop garden, there are four beehives, whose original 40,000-bee colony is expected to expand and produce the Hall’s very own local honey. The honey will be utilised and sold, and used in the Hall’s restaurants.
The roof of Tampere Hall is surfaced with roof covering (titanium dioxide). The air-cleaning roofing (surface area 1,505 m2) compensates for approximately 720,000 kilometres of motor vehicle emissions per year. The bitumen roofing works like this: the sun activates the titanium dioxide, which then operates as a catalyst and converts nitrogen oxides into nitrates. Water rinses the nitrates from the roof (the nitrate content of the water is lower than that of mineral water).
Tampere Hall’s energy classification is C.
A tradition kitchen wastes a massive amount of energy due to problems with grease in the air circulation ducts. With the help of Tampere Hall’s Rena 20 ozone system, it is possible to use a rotary heat exchanger system with a high percentage of heat recovery. By ozonising the restaurant’s grease ducts, the grease in the exhaust air is broken up, the risk of fire is removed, and the need for cleaning is reduced. This also enables the recovery of heat when the air of the grease duct has been purified enough to be suitable for the heat exchanger. The system markedly reduces the amount of smells escaping the kitchen.
Tampere Hall was the first conference centre in the Nordic countries to receive the Nordic Ecolabel, in 2014.
Ozonated water is used in the kitchens of Tampere Hall, and it has replaced the chemical cleaning agents previously used in cleaning the kitchens. We also used ozonated water to wash all the windows of the Hall in the summer of 2017. Ozonated water is produced with an ozonator, which is connected to the cold water tap. The water first goes through a capsule where impurities are removed. Substances including calcium and magnesium are removed from the water. After this the water flows into the device itself, which at the same time draws in air from the room. Inside the machine is an electric field where a small spark is formed, at which point, in the absence of oxygen, ozone is formed. After this, the ozone is mixed into the water as a gas. The disinfectant power of ozone is based on its extremely rapid oxidisation power, which destroys microbes. The disinfectant power of ozone water lasts for four hours, its cleansing power for 8 hours – after that ozone water changes back into ordinary water.