ENERGY EXPRESS A new model for the integrated delivery of efficiency measures to homes
Third party practical examples and case studies
June 2012.
www.energy-express.eu
(France, Netherlands, Sweden, Slovenia)
BEEM UP project Building energy efficiency for massive market uptake Countries:
France, Netherlands, Sweden
The overall objective of BEEM-UP is to develop and demonstrate cost-effective and high performance renovation of existing residential multi-family buildings, drastically reducing the energy consumption: at least 77% reduction in energy demand for space heating, 45% reduction in the energy need for hot water and 42% in lighting, while ensuring a comfortable and healthy living environment and favouring the integration of renewable energy. The action will directly lead to a total energy reduction of 4GWh/year, and 1041 Tonnes CO2 reduction per year. Example (Netherlands): The area called the Kuyperwijk is one of the former growth areas, built in the 1950’s, of the city of Delft. The pilot site in Delft refers to Complex 5 of Kuyperwijk area, built in 1958, and it particularly concerns 80 apartments and 28 attached houses (7326+2355 m2 gross living area). Block of apartments
Attached houses
After the refurbishment that took place on 1980’s, complex 5 now needs and energetic and cosmetic overhaul. The retrofit is expected to bring the energy label from F to A. It is expected that an improved energetic and visually attractive complex will do good to the entire area. Original situation Envelope Windows Heating Hot water Ventilation system
Walls: no insulation but 4 cm air Basement: too humid 60 cm air Roof: no insulation Only double glazing in the living room, aluminium frames over wood Different types of old gas heaters. Not insulated distribution. No special measures. Old mechanical ventilation.
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Complex 5, Kuyperwijk
ICT – energy management (incl. smart meters) Lighting Renewable Energy Source Other energy saving
None. Incandescent light bulbs None None
Final situation Envelope
Walls: 4,5 m2 K/W Basement/floor: 5,0 m2 K/W Roof: 4,0 m2 K/W HR ++ windows with layer of metal foil. 1.6 times better insulation than Windows double-glazing. Heating HR 107 boiler with use of solar panels on the houses. Insulated distribution. Hot water Water saving showers. Improved mechanical ventilation Clima Rad heat recovery connected to the Ventilation system living room Feedback system mounted to the wall and it will include both functions to ICT – energy management set temperature and weekly schedule as well as feedback on actual usage of (incl. smart meters) electricity and gas. Lighting LED Lighting in common areas. Renewable Energy Source Solar energy on roof for warm water and heating. Focus on tenant behaviour and awareness-raising during and after retrofit is Other energy saving expected to lead to further reductions in energy consumption
Brogården in Alingsås is an area of multi-dwelling buildings built in 1973. The area comprises a total of 300 flats, divided into 16 houses with 2-4 floors each. All flats have a balcony or a patio. The Brogården area is currently undergoing an extensive renewal, which started on the spring of 2008. The building owner, Ahem, and the contractor, Skanska, bring the last 8 blocks of flats (144 dwellings, 14860 m2 gross living area) into the BEEM-UP project, in order to develop the processes and solutions for making the retrofitting financially viable on a large scale. The aim is to reduce the very high energy consumption.
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Example (Sweden):
Brogården is classified by the municipality as an area of conservation value. Because of this building materials have been chosen to resemble those of the original building. The first blocks in the area have been renovated as an initial comprehensive pilot for energy efficient refurbishment towards passive house performance. For the final 8 blocks, the aim is to bring this process up to scale, and develop costefficient solutions to make energy efficient refurbishment a viable alternative for the remaining housing stock.
Original situation
Envelope
Windows Heating Hot water Ventilation system ICT – energy management (incl. smart meters) Lighting Renewable Energy Source Other energy saving
Walls: (Curtainwalls) Gypsum boards on non loadbearing wooden studs, 95 mm insulation and façade bricks. To be demolished in its entirety. Basement: Cast-insitu concrete walls without any insulation. Roof: 300 mm insulation on roof slab. Wooden rafters with props on roof slab. Single pane with supplementary aluminium sash and one additional pane (U value = 3.0) District heating. Water carried heating with radiators. District heating. Mechanical exhaust with air intake through window vents. No individual measuring. Incandescent light fittings. District heating is renewable to 98%. None
Envelope Windows Heating Hot water Ventilation system ICT – energy management (incl. smart meters) Lighting Renewable Energy
Walls: Previous wall is replaced by new wall with several layers of insulation and slotted steel studs. In total 440 mm insulation. Basement: 100 mm expanded polystyrene extends 1 meter below ground level. 100 mm drainage panel downwards to ground floor. Roof: 400 mm new NTriple pane window with insulated glass (U-value = 0,85) Recovery system in combination with district heating. District heating as before. Balanced ventilation with heat recovery. Single unit serves entire building. Electricity is measured individually; hot water is monitored remotely for each flat; heating is measured for each staircase. Low energy fittings. Low energy or halogen lighting and LED lighting in staircases. District heating and PV on roof of 4 buildings.
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Final situation
Source Other energy saving The tenants receive energy-saving tips Example (France): The building is located in the centre of Paris, 800 m from Montparnasse train station, at the corner of Rue du Cotentin and Rue Falguière. It is composed of 87 dwellings (4,352 m² gross living area) built around 1950. In 1993, the building underwent renovation (outer insulation, double glazed windows, boilers), but it needs a major upgrade to become a pilot for bringing their housing park to the low energy standard for renovated buildings (less than 104kWh/m² for HVAC, hot water and lighting). The surrounding buildings have similar heights.
The operation was initiated in January 2009. The main direction for the retrofitting has been selected, and will be refined in collaboration with the design team, that was contracted in October 2009. The complete technical diagnosis is available since June 2010. The real design phase will start when the BEEM-UP project kicks off. Retrofitting works start in September 2011. The building is oriented to North and South on rue du Cotentin, East and West on rue Falguiere All dwellings have small balconies, 7th floor dwellings have a large terrace with a view on Paris. Original situation
Windows Heating Hot water Ventilation system
ICT – energy management None (incl. smart meters) Lighting Regular incandescent light bulbs Renewable Energy Source None Sanitary hot water None
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Envelope
Walls street side: concrete + 2cm sandwich insulation Walls back side : concrete + 2 cm sandwich insulation + 8 cm ETICS Basement: concrete Roof: concrete + 5cm insulation PVC double glazing, 20 years old 2 collective gas boiler Individual electric boilers have been installed in 1993. Originally hot water was provided by a collective boiler located on the roof. Natural ventilation grids in the kitchen, bathroom and toilets (apparently no ventilation problems)
Final Situation
Envelope Windows Heating Hot water Ventilation system ICT – energy management (incl. smart meters) Lighting
Walls street side: + 20cm ETICS EPS λ032 Walls back side : New 20cm EPS ETICS λ032 Basement: + 10 cm insulation EPS λ032 below ceiling Roof: New 10cm insulation PUR λ024 on ceiling New PVC double glazing, U= 1,5 W/m².K New condensing boilers for heating and warm water Focus on tenant behaviour and awareness-raising during and after retrofit is expected to lead to further reductions in energy consumption. New controlled mechanical ventilation Cost optimal control solutions (from individual solutions like chronostat, radiator zone control, meter data for individual billing, to full home automation). Exact optimum will be defined during integration with total system and specific simulation. All public spaces will be fitted with low-energy light systems. All tenants encouraged to switch to low-energy lighting.
Renewable Energy Source
Heat recuperation from waste water
Sanitary hot water
Focus on tenant behaviour and awareness-raising during and after retrofit is expected to lead to further reductions in energy consumption.
Additional Project Information:
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Project Summary Project WebSite Monthly Status Reports / France Monthly Status Reports / Netherlands Monthly Status Reports / Sweden …more…
Municipality of Ljubljana
General info Country:
Slovenia (capital of)
Area:
275 km2
Population:
280,000
Density:
1,000 / km2
Web:
www.ljubljana.si
Relevant projects In 2004 one street in Ljubljana joined project SUNRISE (5th EU Framework on research and development; please refer to Appendix 1 and 2). The project was focusing on heating and isolation of the buildings, and on the technical evaluation and monitoring of the existing heating solutions. After the evaluation, the solutions carried out included:
More about the project(s) on www.jssmol.si (please use google translate, as the website is only in Slovenian)
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changing the shutters to those that absorb and reflect back more sun during the summer, and preserve more inside heat during the winter making minor changes and addition with regards to isolation (windows, entrance doors, balcony doors) monitoring energy consumption to identify biggest consumers (fridge, stove, heater etc) and adjusting energy consumption accordingly (lowering thermostats for 1 degree and similar)
Appendices: (1) EU 5th Framework for Research and Technological Development
In order to meet the challenges of the transition to a "knowledge-based society", the Fifth Framework Programme was different from its predecessors in terms of both content and operation. The intention was to concentrate research on current socio-economic problems, i.e. research with the potential to accomplish the changes expected by the general public. Therefore, the EU's Fifth Framework Programme for research and technological development intended to make a substantial contribution by helping:
companies get to grips with the knowledge and expertise - increasingly technological in nature necessary to face up to the challenges presented by the new millennium and increasing globalisation; European society use technical progress to find innovative solutions to the major problems which confront it, such as employment, health, environment, energy supply, transport and mobility, education and training; Europe's citizens enjoy a high quality of life, and providing the conditions that can ensure their personal and material development.
Consequently, FP5 was structured with four Thematic Programmes (each with Key Actions and Generic Activities) and three Horizontal Programmes Thematic Programmes
Quality of life and management of living resources User-friendly information society Competitive and sustainable growth Energy, environment and sustainable development
Confirming the international role of Community research Promotion of innovation and encouragement of SME participation Improving human research potential and the socio-economic knowledge base
More about the 5th Framework Programme: http://ec.europa.eu/research/health/5th-framework-programme_en.html
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Horizontal Programmes
(2) The SUNRISE Project (Focuses more on new buildings, although some parts applicable to existing housing facilities)
The Project approved by the 5th Framework Programme of the European Community aims to prove a reduction in energy consumption and CO2 emissions, if compared to conventional residential buildings. The SUNRISE project (Strengthening the European Photovoltaic Sector by Cooperation with important Stakeholders) aims to improve the interaction between the PV sector and all the relevant stakeholders such as construction sector and utilities.
Additional information: Paper on Integrated strategies for the creation of sustainable communities in Madrid (the “Eco Valle� operation) More on Eco Valle
The European Photovaltic Technology Platform PV Sunrise (PV diffusion and network integration)
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Recommendations for unified technical regulations for grid connected PV systems