Europaparlamentet har allerede vedtatt at alle bygg oppført etter 2020 skal være nesten selvforsynt med energi, men hva med plusshus?

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1 Europaparlamentet har allerede vedtatt at alle bygg oppført etter 2020 skal være nesten selvforsynt med energi, men hva med plusshus? Forskningsleder PhD Birgit Risholt ZEB/SINTEF Tekna kursdagene 9. januar 2015

2 Europaparlamentet har allerede vedtatt at alle bygg oppført etter 2020 skal være nesten selvforsynt med energi, men hva med nullutslippsbygg? Forskningsleder PhD Birgit Risholt ZEB/SINTEF Tekna kursdagene 9. januar 2015

3 Tema Begrepsavklaringer for ulike typer energieffektive bygg Nullutslippsbygg hva kreves Nullutslippsbygg norske eksempler

4 Begreper om energieffektive bygg Lavenergibygg Passivhus Nesten nullenergibygg Nullenergibygg Plussenergibygg (plusshus) Nullutslippsbygg ZEB Zero Emission Buildings

5 Begreper om energieffektive bygg EU direktiv fra 2010:

6 Annually energy demand/production: kwh/m2 Zero Emission Buildings - The Challenge: The main concept of a zero emission building is that renewable energy sources produced or transformed at the building site have to compensate for CO 2 emissions from operation of the building and for production, transport and demolition of all the building materials and components during the life cycle of the building Energy standard, single family houses in Norway Today's average standard Buildings code, 2007 Passive house standard Net zero energy Plus energy Energy demand Energy production Source: SINTEF Byggforsk

7 ZEB s main objective is to develop competitive products and solutions for existing and new buildings that will lead to market penetration of buildings with zero greenhouse gas emissions related to their production, operation, and demolition. The centre will encompass both residential, commercial, and public buildings. Illustration: Snøhetta/MIR

8 Lifecycle emissions for a building Materials, M Raw materials, production, transport Construction, C Transport, construction, installation Operation, O Energy use, maintenance, renovation, replacement End of Life, E Demolition, waste

9 Raw material supply Transport Manufacturing Transport Construction installation process Use Maintenance Repair Replacement Refurbishment Deconstruction demolition Transport Waste processing Disposal Reuse-Recovery-Recycling potential NS-EN lifecycle analysis Suppl. info beyond the building life cycle. D USE STAGE END-OF-LIFE Benefit/load beyond syst. boundary A1 3 A4 5 B1-5 C1 4 PRODUCT STAGE CONSTRUC- TION A1 A2 A3 A4 A5 B1 B2 B3 B4 B5 C1 C2 C3 C4 D Materialer Bygging Bruk Riving

10 Bruk av energi Produksjon av fornybar Utslipp CO 2 energi. Kompensasjon CO 2 Materiale Bygging Bruk Riving

11 Material Bygging Bruk Riving Utslipp CO 2 Bruk av energi Produksjon av fornybar energi. Kompensasjon CO 2 ZEB LEVEL O OM COME

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13 ZEB definition inclusion of embodied emissions 1. ZEB Ambition level 2. Procedures for calculation Functional unit, system boundaries, embodied emissions, transport, construction, waste 3. CO 2 -factors 4. Service lifetime 5. Time perspective 6. Minimum requirements for ZEB O and ZEB-O Eq 7. Emissions payback calculations 8. Verification Kristjansdottir, Fjeldheim, Selvig, Risholt, Time, Georges, Dokka, Bourelle, Bohne and Cervenka, A Norwegian ZEB Definition: Inclusion of embodied emissions, ZEB June 2014

14 Concept work Shoe box models Four storey office building 1. BIM-modelled 2. Detailed LCA and GHG calculations 3. Detailed simulation of building, installations and energy supply. 4. Building integrated PV balancing CO2 emissions

15 Typical Norwegian office building with renewable energy production on site "Passive house" building envelope Concrete in foundation and load bearing structure Wood frame wall LED lighting and energy efficient appliances Solar cells for electricity production Ground to water heat pump and solar collector for heat production Hydronic heating system Ventilation system with rotary wheel heat exchanger

16 Concept work Office building

17 Concept work Office building

18 ZEB-Pilot Buildings 1. Powerhouse Kjørbo Sandvika. Renovation of 2 office blocks 2. Multikomfort-Larvik: Single family house 3. ZEB Living Lab, Trondheim. Single family house 4. Skarpnes Arendal: 37 dwellings 5. Haakonsvern Bergen. Small office building, 6. Ådland - Bergen: +500 dwellings 7. Powerhouse Brattøra. Large office building 8. Heimdal Videregående Skole 9. Campus Evenstad. Small office building

19 Powerhouse Kjørbo, Sandvika Two existing office buildings, each 2500 m2, renovated to plus energy performance level ZEB ambition level: ZEB-OM minus EQ Status: Finished and in use since 24 th April 2014 (Asplan Viak) Involved ZEB partners: Entra (owner of buildings, Skanska (contractor), Hydro/SAPA, Snøhetta ZEB contact person: Hans Martin Mathisen ZEB researchers involved: Berit Time, Torhildur Kristjansdottir, Tor Helge Dokka, Inger Andresen, Thomas Berker

20 Powerhouse Kjørbo Burnt wooden cladding has replaced the original glassed façade The largest PV plant in Norway

21 Powerhouse Kjørbo Internal stairs and exhaust air channel Air inlet and air heating/cooling from central core Acoustic elements made of recycled plastic bottles Reuse of glass from original windows

22 Powerhouse Kjørbo Increased window area Open office areas Exposed concrete surfaces for heat storage

23 Multikomfort, Larvik Detached house, 200 m2, demonstration at Climate centre of Brødrene Dahl in Larvik ZEB ambition level: ZEB OM (no emissions for heating/cooling and operation, and from materials) Status: Finished September 2014 Involved ZEB partners: Brødrene Dahl, Snøhetta and Isola. ZEB contact person: Anne Gunnarshaug Lien ZEB researchers involved: Torhildur Kristjansdottir, Tor Helge Dokka, Berit Time, Sivert Uvsløkk

24 ZEB Living Lab Under construction on NTNU campus in Trondheim 100 m² living area ZEB-Operation Building Integrated Photovoltaics: 80 m 2 Solar panel in the facade Ground to water heat pump Heat recovery system

25 Skarpnes, Arendal 40 dwelling: 20 apartments, 20 detached houses Total built area: 4500 m2. ZEB ambition level: ZEB Operation (no emissions for heating/cooling and operation) Status: First houses finished in 2014, more under construction Involved ZEB partners: Skanska, MultiConsult and Weber. ZEB contact person: Inger Andresen ZEB researchers involved: Anna Svensson, Birgit Risholt, Lars Gullbrekken, Thomas Berker, Karen Byskov Lindberg

26 Administrasjonsbygget Haakonsvern, Bergen Office building, 2000m2 ZEB ambition level: ZEB O-EQ Status: Construction in 2015 (Veidekke) Involved ZEB partners: Forsvarsbygg, Multiconsult ZEB contact person: Inger Andresen ZEB researchers involved: Jens Tønnesen, Thomas Berker, Berit Time, Tor Helge Dokka, Inger Andresen

27 Zero Village Bergen dwellings; apartment buildings and row houses New development close to the city Bergen in Norway Illustration by Norconsult Transport and the energy systems part of the development The area will be self-supplied with both thermal and electric energy Ambition to achieve a zero emission performance for the entire area

28 Emissions CO 2 Payback CO 2 Energy use Generate renewable energy The area's average emission balance Materials Construction Operation End of life

29 Aadland energy concepts Alternative 1 Alternative 2 Building envelope and technical installations Passive house standard Highly efficient ventilation system with heat recovery Natural ventilation and passive cooling in summer Lighting based on LED Hot fill washing machines Passive house standard Highly efficient ventilation system with heat recovery Natural ventilation and passive cooling in summer Lighting based on LED Hot fill washing machines Energy supply systems Thermal solar collectors Ground source heat pump Photovoltaics Thermal solar collectors Biogas based CHP Photovoltaics

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31 ZEB research centre and pilot buildings Det er fullt mulig å bygge nullutslippsbygg også i et kaldt norsk klima...følg vår forskning på

32 Takk for oppmerksomheten