PILOT ACTION 1
Renovation and enlargement of a kindergarten building in Sveta Nedelja
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- 1. GENERAL DESCRIPTION
Positive demographic changes in the City of Sveta Nedelja are putting constant pressure on providers of pre-school educational services. The basic economic and financial analysis showed that the construction of a new public kindergarten would be a more reasonable solution than providing further subsidies for children who wish to attend public kindergartens rather than private ones. A better control of pre-school education standards and improvement of overall image as a social sensitive city present additional arguments for this solution.
Potential technological solutions for heating and cooling of the new nZEB kindergarten building proved to be the biggest dilemma. Therefore, life-cycle costs were studied over a 10, 20 and 30 years in order to properly reflect financial effects of each technological solution. A version which foresees a heat pump system (water-water) combined with a PV system proved to be the most cost-optimal solution. Results of the economic analysis did not show significant differences compared to the financial analysis.
- 2. ENERGY RENOVATION STRATEGIES
New buildings are increasingly constructed to demanding energy performance levels, and the path has already been laid within Energy Performance of Buildings Directive (EPBD) for all new buildings to have nearly zero energy requirements.
Energy Efficiency Directive (EED) complements other requirements within EU legislation concerning the renovation of buildings and requires EU countries to establish long-term strategies for mobilising investment in the renovation of national buildings stock. Croatia has drawn up Long-Term Strategy for Mobilising Investment in the Renovation of the National Building Stock of the Republic of Croatia to show how it is planned to foster investment in the renovation of residential and commercial buildings.
- 3. FINANCIAL MODEL
A preliminary PPP analysis proved the applicability of this model with Design-Build-Maintain concept being the best one for this project. During the next step of the project a PSC analysis will be performed, including further development of potential PPP models that could be applied for this investment.