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Sustainable Ålidhem is a project for sustainable urban development which includes social, technical, environmental and economic aspects. It entails a district in the Swedish City of Umeå which combines 2650 square meters of photovoltaic-cells with 137 new sustainable apartments with high energy efficiency, 405 nearby renovated apartments, nearly fossil free district heating or individual metering.
The overall objective of the project is to reduce energy consumption in the area, create a more comfortable and safer environment and transform the Ålidhem district, which burned down in 2008, into a sustainable neighbourhood. An important principle was that, despite renovation, the rent will not increase by more than 10% compared to the previous level.
With Umea University, the project evaluated how renovation could be completed as sustainable as possible. Two similar buildings were therefore selected for comparison, a pilot and a reference building. The objective to not increase the rents with more than 10 percent after the renovations was reached by using the results of this evaluation and planning the renovations in a proper way. Measures that contributed to the creation of a sustainable urban district were the newly installed ventilation and heat recovery system, the improvement of the insulation, the installation of new windows and the creation of a winter garden. This garden was not only a green meeting place, but also very energy-efficient: it reused the return heat and produced electricity through photovoltaic cells on the roof. Furthermore, all new and renovated apartments are equipped with a computer screen that monitors water and energy consumption in real time.
In city-wide, but also national and European comparisons, the per capita energy efficiency in Ålidhem is the highest in the city and could well serve as a model for other cities. The project achieved to halve the use of energy in the area. Sustainable Ålidhem has received many awards such as Sustainble Energy Europe Award 2013, Living category, the National Energy Globe Award 2014 and Sustainable Innovation in 2014.
Mr. Johan Sandström
johan.sandstrom@umea.se
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