Energy Intelligent Education

Transcription

1 International Conference on Energy Efficient Renovation in Residential Building Sector June 2010 Energy Intelligent Education By Elsebeth Terkelsen Arch. MAA, Head of Department Aarhus School of Architecture Denmark Staccato is a project of the concerto initiative co-funded by the European Commission under the Sixth Framework Programme

2 International Conference on Energy Efficient Renovation in Residential Building Sector June 2010 Aarhus School of Architecture Staccato is a project of the concerto initiative co-funded by the European Commission under the Sixth Framework Programme

3 International Conference on Energy Efficient Renovation in Residential Building Sector June 2010 Index Presentation of achievements and results from EI-Education Best practice from database and guidebook Courses and network Lessons learned Next steps Staccato is a project of the concerto initiative co-funded by the European Commission under the Sixth Framework Programme

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5 The EI-Education team

6 The EI-Education team AAA Aarhus School of Architecture, DK ESV Upper Austria Energiesparverband, A CENERGIA - consulting engineering company, DK ECN Energy research Centre of the Netherlands CSTB Centre Scientifique et Technique du Bâtiment, France SEC Sofia Energy Center, Bulgaria BCEI ZRMK Civil Engineering Institute ZRMK, Slovenia BL - National Association of Housing Companies, DK Delphis network of 14 Housing Companies in France HF LJ - Housing Fund of Ljubliana District Izgrev, Municipality of Sofia -Bulgaria

7 Presentation of achievements and results from EI-Education: Courses as communication tool Best practice from database and guidebook

8 The EI-Education platform The EI-Education Guidebook Guidebook in 6 languages 13 best practice technical solutions 5 checklists & 9 tools 62 best practice examples from 11 countries

9 EI-Education Platform Platform in 6 languages

10 The best practice retrofitting examples The best practice examples have all performed an increase of energy efficiency of 30 % minimum. Each example shows a comparison between the U-values before and after renovation. To reach the minimum of 30 % energy saving, a comprehensive renovation of the building is usually necessary. This includes at least the renovation of the facade, the windows, the roof/top ceiling and the ground floor. This means that the building envelope is fully renovated and modernized.

11 % energy saving Energy savings of most interesting examples Austria 1 Austria 8 Austria 11 Bulgaria 2 Bulgaria 4 Denmark 1 Denmark 3 Denmark 4 France 7 Germany 2 Latvia 2 Netherlands 2 best practice examples Netherlands 9 Slovenia 2 Slovenia 3 Sweden 1 Switzerland 5

12 Results of innovative studies Achieve the reductions in emissions through: Technology & Environment Policy & Strategy Organisation & Financing

13 Technology & Environment Best practice examples with innovative technologies with a high environmental value Example Austria Noitzmühle Austria Linz Denmark Lundebjerg Denmark Sundevedsgade Denmark - Osterbro France L'isle d'abeau Germany Big Heimbau Switzerland Lausanne One feature 512 m² thermal solar plant Passive house standard with 91 % energy saving PV modules integrated in façade and roof Heat recovery on ventilation air Solar wall construction PV for ventilation and low energy lighting in common areas Solar collectors and solar walls Ventilation system air distribution pipes in the first layer of the façade insulation

14 LUDWIGSHAFEN Germany GAG Ludwigshafen am Rhein (housing association) Constructed Renovated 2005 Apartment building m2 12 dwellings in two stories 94 % energy saving Total living expenses after renovation should stay the same Innovative technologies: Passive House standard, Block CHP, LT heating, HE Heat recovery on ventilation air, PV per apartment (incl. VAT) = 272 per m2 Insulation of attic floors and cellar ceiling Insulation of façades High efficiency triple glazing and frames Removal of thermal bridges (balconies separated from main construction and enlarged) Removal of common chimneys Installations CHP system per block and hot water storage in tanks 250 kw th PV system of 140 m2 (18 kwp, kwh/a) Low temperature heating (water to air heat exchanger) Balanced ventilation with heat recovery 85% efficiency

15 GIWOG (social housing association) Constructed1957 Renovated2005 Apartment building 50 apartments LINZ (Austria) 3,106 m 2 constructed area 91 % energy saving Total living expenses lower than before renovation Passive house standard High acceptance from the tenants Costs of energy saving measures: 2,446,000 (incl. VAT) = 788 pr. m 2 Insulation of outside walls Insulation of roof Insulation of cellar ceilings Triple glazing of windows Installations District heating Mechanical ventilation with heat recovery for each room

16 OPAC 38 (social housing company) Constructed 1984 Renovated 2003 Apartment building 110 flats 5400 m² L isle d Abeau France 61% energy saving. Reduction of running cost in social housing through energy and water savings Natural gas heating + thermal solar panels instead of electric system Photovoltaic modules for ventilation and common lightning Costs of energy saving measures: 1.37 million = 25,37 per m² Installations High energy efficient gas boiler 165m² Solar thermal panels for domestic hot water and PV operated pumps 50m² Photovoltaic cells f or ventilation and low energy lightning in common areas Energy Management System

17 ÖSTERBRO (Denmark) Danish Housing Association AAB Constructed 1925 Renovated Apartments in 5 floor residential building block 76 apartments, m 2 constructed area 51 % heating saving Among the most important low energy retrofit projects in the housing sector in DK First innovative solar wall construction in DK 1,78 mio. Euro for energy measures at m 2 = 180 Euro per m 2 Solar wall: 178 m² solar wall construction with Okalux transparent insulation Pre-heating of ventilation air Reduction of heat consumption Annual contribution from solar wall to building ventilation: 105 kwh/m2 Total annual output from solar wall: kwh

18 Big Heimbau Germany BIG Heimbau AG, Kiel- Kronshagen, Germany Constructed 1964 Renovated2002 Apartment building 80 2 towers m 2 50% energy saving for heating & DHW (excl VAT) = 168 per m 2 Insulation of roof, 12 cm of polystyrene Insulation of blind walls Aluminum frame double glazed Low-E window Insulation of thermal bridges Installations 35 m² of solar collectors (DHW)

19 Policy & Strategy Best practice examples which pursue an innovative or extraordinary strategy and policy in carrying out the renovation projects. Example Austria Steyr Bulgaria Radomir 2 Netherlands Raamsdonk Slovenia Ljubljana, Hermana Sweden Göteborg One feature Breakaway of the balconies in an occupied building Pilot project to show possibilities of energy savings in apartment buildings Rent and energy saving guaranty given by housing association Demonstration project for passive building standard in social housing Sustainable/bio-climate design

20 RAAMSDONK Netherlands Volksbelang (housing association) Constructed Renovated Row family houses 42 dwellings 3,360 m 2 (average of 80m 2 each dwelling) Maximal parcel of measures: 70% gas saving Rent and energy saving guaranty given by housing association External insulation bricks for façades - new look! 39,900,- per house (incl. VAT) (total costs, non-energy measures included, out of which 3,300 subsidies) =499 per m 2 External insulation of roof [0.30] External insulation of cavity façades Insulation window frames High efficiency glazing Chimneys wrapped in insulation casing Installations Individual boilers with improved or high efficiency (4 / 8 dwellings) Solar collector (12 dwellings) Mechanical ventilation Heat recovery based on ventilation air (80% eff.) U-value of the glazing only

21 Constructed 1975 Renovated2004 Apartment building 57 non-profit tenancy apartments 5105 m 2 LJUBLJANA Slovenia 63% energy saving Total living expenses lower than before renovation Innovative technologies: passive house standard building envelope (incremental investment to passive house standard envelope) =43,09 Euro pr. m 2 Insulation of facade Insulation of roof Insulation of ground floor Replaced windows (low-e + argon glazing) Solar protection: roller blinds Night insulation: thermally insulated roller blinds Installations (in progress): Management and control system: BMS, heating system management and control Comfort control and information system: consumption, impacts and comfort

22 Organisation & Financing The best practice examples presented have special solutions concerning the organisation and realisation of the renovation project and/or concerning innovative financial solutions. Example Sofia, Zaharna Fabrika Latvia Kuldiga, Mucenieku names Netherlands Haarlem Slovenia Ljubljana, Einspilerjeva One feature Costs are partly covered by two new rented flats in the attic Good financial scheme During renovation, tenants moved to "flex-flats". Co-operation of flat owners and their tenants was essential.

23 Owner occupied flats Constructed 1947 Renovated 2004 Multi-dwelling building 13 apartments Zaharna Fabrika Bulgaria 1100m 2 living area before renovation; 1160 m 2 living area after renovation 46% energy saving Improved and enlarged building Flexible financing schemes allow owners with low incomes to realize the refurbishment of their dwellings BGN (approx Euros) = 45,15 Euro per m 2 New insulated roof 0,5 Insulation of basement ceiling 0.52 Insulation of external brick walls 0,52 New double glazed PVC windows Installations Improvement of the heating system (balance, insulation of pipes)

24 Presentation of achievements and results from EI-Education: Best practice from the courses

25 Developing of 6 courses

26 All programmes and powerpoints from the presentations are on the platform!

27 Result of the courses 85 social housing companies and municipalities participated in the national courses The Netherlands: 34 / 17 Denmark: 32 / 20 Austria: 28 / 14 Slovenia: 23 / 14 France: 20 / 13 Bulgaria: 20 / 11

28 An international workshop

29 Lessons learned Learnings from the database Learnings from the courses New network New projects

30 Succes stories courses as communication tools and action promotion Story no. 1: One project of energy intelligent retrofitting has already started as a result of the project. The retrofitting takes place in Denmark, in the suburb of Copenhagen Albertslund with participation of the Danish energy expert company Cenergia. It s a retrofitting of 250 row houses. Story no. 2: Courses in energy intelligent retrofitting will be continued in five of the six partner countries. This will increase the number of social and cooperative housing organisations that have been involved in EI-Education Story no. 3: The project has been invited to tell about the project at a conference on low carbon for social housing organisations in London. The conference took place on the 21st January 2008 and the Intelligent Energy Europe programme was presented, as well as a number of best practice examples from the EI-Education Guidebook.

31 Lessons learnt Another type of cooperation that would have added value to the project was the exchange of project information and presentation between the partner countries at the courses. But it would cost a lot of travel. The platform would have gained by involving an e- learning consultant. We had stakeholder participation through the workshops held in advance of the planning of the EI-Education courses. This added important information to the target groups of the courses and their interests and needs.

32 Konclusions Conclusion no.1 It s possible through education and courses to reach a large number of social housing organisations public and private. The general impression was that they were very interested in information and in learning about innovative projects and technologies, and how to practice energy intelligent retrofitting. It s important to continue and extend the courses offered to social housing organisations in energy intelligent retrofitting. Conclusion no.2 The curiosity among social housing organisations on experiencing what they do in other European countries, has contributed positively to the communication in the project. Further more it has been of importance to involve respected energy experts to contribute to the courses. Conclusion no.3 It s important to focus on how the ownership is to the education courses and how the engagement is in the implementation and follow up. The continuation of the courses is dependent on the feeling of ownership. We had expected the housing associations to be more engaged, but it showed that the possibility of selling the courses was of greater importance for the ownership than being the organisation for the housing organisations. However through the network established through the project, the housing associations will contribute to the continuation.

33 Follow up - Network and new projects The network that came out of the project has resulted in 4 new EU-proposals Network of at least 48 European organisations 2 new Danish projects 2 international lectures 3 national lectures

34 New project:

35 Best practice eksempler the 70ties Hoheloogstrasse, D and Lundebjerg Ballerup, DK Description and dialogue Hoheloog Str /15 The house is a passive house The balconies could be in a more appropriate dialogue with the house Lundebjerg - 80/46 No problems in changing such a house to passive house standard. The brick facades are maintained as a cultural element

36 Thank you for your attention! Comments and questions are welcome!