Delivering on innovation and market uptake. Best-in-cases of nzeb. Ramon Pascual Bucharest May 8th, 2015

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2 Delivering on innovation and market uptake. Best-in-cases of nzeb Ramon Pascual Bucharest May 8th, 2015

3 Outline nzeb Database Best in cases of nzeb Climates in Europe Preliminary results o U-Values and Insulation materials o Windows o Mechanical Ventilation and Heating Systems o Energy carrier for Heating o Passive cooling strategies Conclusions

4 nzeb Database

5 nzeb Database What is ZEBRA2020 collecting? Data of best practices among Europe 17 countries built after 2010 new building and renovation residential and non-residential > 400 best practices!! Number of case studies Italy 100 Germany 30 United 15 Kingdom Netherlands 15 Austria 30 Lithuania 15 France 30 Luxemburg 15 Poland 30 Czech Optional Republic Slovakia Optional Romania 30 Belgium Optional Norway 30 Denmark Sweden Spain 30 Optional Optional Identification of nzeb SOLUTION TRENDS and FEATURES in Europe

6 nzeb Database Residential Energy Performance Heating demand Cooling demand Primary Energy demand Passive Solutions Envelope Wall U-Value, ins. material Envelope Roof U-Value, ins. material Envelope Floor U-Value, ins. material Windows typology U-Value, glazing Passive cooling strategies Solutions Active Solutions Mechanical Ventilation Typology, efficiency Heating system Typology, Energy carrier... Cooling systems Typology, Energy carrier DHW Typology Renewable Type of renewable energy Non- Residential

7 Best-in-cases of nzeb

8 Best-in-cases: Primary School of Laion (IT) General information Type of building Year 2006 Heated surface 625 m² Heating Degree Days (20 ) Primary Energy demand Heating demand Certification Energy Balance Demand 5,690 kwh/y Production 16,471 kwh/y Surplus 10,781 kwh/y Primary School kwh/m²y < 10 kwh/m²y CasaClima Gold

9 Best-in-cases: Primary School of Laion (IT) Compact: S/V Building Specifications U-Value of opaque surface Insulation materials U-Value of window surface Type of window Mechanical ventilation Heating system Renewable Energy 0,53 m 0,23 W/m²K Wall: 20cm mineral foam Roof: 24 cm wood fibers 0,78 W/m²K Argon triple coated panes. Venetian blinds. with Heat recovery Radiant Floors Electric heat pump Geothermal plant Solar Thermal collectors Photovoltaic (Polycristalline)

10 Best-in-cases: Solarsiedlung amb Schlierberg. Freiburg (GER) General information Type of building Year 2006 Residential Net Floor Area 7890 m² Primary Energy demand Energy Balance Demand (Primary) Supply (Primary) Surplus (Primary) 70 kwh/m²y 70 kwh/m² y 142 kwh/m² y 72 kwh/m² y

11 Best-in-cases: Solarsiedlung amb Schlierberg. Freiburg (GER) Building Specifications U-Value of opaque surface Windows Mechanical ventilation Heating system Renewable Energy Wall: 0,12 W/m²K Roof: 0,12 W/m²K Floor: 0,16 W/m²K U-Value window: 0,8 W/m²K g-value: 0,48 W/m²K Triple-glazed with insulated wood frames with Heat recovery District Heating (also for DHW) Photovoltaic (3205 m² kwp ) Biomass Combined Heat and Power

12 Climates in Europe

13 Climates in Europe Climatic conditions Temperature Summer / winter Humidity Wind Solar Radiation

14 Preliminary results

15 Preliminary results: U-Values Wall, Roof and Floor- Residential Buildings

16 Preliminary results: Insulation material Wall, Roof and Floor- Residential Buildings Expanded Polystyrene and Stone wool

17 Preliminary results: Windows U-Values and Glazing type - Residential Buildings Triple Glazing

18 Preliminary results: Mechanical Ventilation Residential Buildings

19 Preliminary results: Heating Systems Residential Buildings Boiler Heat Pump (35%)

20 Preliminary results: Energy Carrier for Heating Residential Buildings

21 Preliminary results: Passive cooling strategies Residential Buildings Sunshade Natural ventilation

22 Conclusions Influence of morphology of the territory o Passive solutions o Active solutions Knowledge Incentives Economic development

23 Thank you! Multumiri! Ramon Pascual EURAC Research

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