Because it represents a large field of experimentation EU Member States’ Governments can control and because local authorities have less and less enough budget to manage on a daily basis their assets, property asset is strongly exposed to the evolutions of the regulations on energy and climate.
75% of the global cost of the local and regional authorities energy consumption concerns buildings. Brought back to m², the annual costs in energy consumption of European towns property asset stagnate around 10 €.
As seen in a previous post, one of the issues for the municipalities is to reduce their dependence to fluctuations in energy prices and to reduce thus their global operating cost. Renovations of the existing public buildings are essential to adapt them progressively to new technologies and to efficient solutions. They follow several objectives in the short, average and long terms:
- perpetuate the property asset,
- improve the cities’ image,
- ensure the citizens’ comfort,
- reduce the energy bill.
The issue today for communities is to build a new architectural heritage constituted of comfortable, sober and sustainable buildings in time. The choice for renewable energies, to technologies less energy consuming and more effective are part of the solutions. These will need to be associated to a true behavioral education so that everyone knows how to manage its energy and learns thus the good practices to consume less and better.
On new buildings, some solutions have widely showed their energy and economical efficiency. On the other hand, on the existing property asset, the political objectives for energy efficiency improvements are generally extremely ambitious and, looking at the current rhythm of the renewal of the stock (0.1% a year), the existing solutions will not be sufficient. To reach the objectives, EU Member States will need to innovate on technical, organization and society levels. On this basis, the principal issue is located in the renovation of the already built heritage.
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