MED-ENEC - Energy Efficiency in the Construction Sector in the Mediterranean

MED-ENEC -

External cooperation programmes - European Commission

Pilot Project Israel

The TAEQ Green Training and Community Centre in Sakhnin is a two story public building integrating modern and vernacular elements. It is used as headquarter of the Towns Association for Environmental Quality (TAEQ) and for training and demonstration purposes.

The TAEQ Centre has a floor space of currently 1482m² and is planned to be extended to 2101 m². To increase energy efficiency, vernacular passive measures, modern energy efficiency measures and renewable energies are used.

Partner

Towns Association for Environmental Quality (TAEQ)

natufa@zahav.net.il

Taeq

 

PP Israel

Summary

The TAEQ building has been planned according to "green" and energy saving design principles. The aim is to minimize its energy needs to a "no heating - no cooling" situation by integrating measures which are also suitable for other, similar buildings.

The energy saving concept of the TAEQ Green Building is based upon three levels:

Level A: "Traditional - vernacular" passive energy conserving elements, estimated to reduce energy consumption by 50 - 60% compared to conventional buildings.

Level B: Addition of modern and traditional energy saving elements further reducing the heating, cooling and light demands.

Level C: Addition of modern renewable energy electricity producing elements (PV, wind turbine) to supply the rest of the energy demands. Connection to the public grid supplies the backup for peak demand hours.

Profitability

Due to the combination of passive and active energy efficiency measures, the overall primary energy consumption of the TAEQ building could be reduced by more than 80%. However, investment costs were increased by around 40% which resulted in a pay back time of 10 years. It therefore makes sense to choose only the most cost efficient measures to bring the pay back time down to 6 years making the project also attractive from an economical point of view.

res-isr

Main technical features of the Pilot Project

The energy concept of the TAEQ building is based on a combination of vernacular passive measures, modern energy efficiency measures and the use of renewable energies:

Traditional - vernacular passive measures

  • Malkafs (wind towers)
  • Mashrabia (shading system for windows)
  • Tisane (daylight system)
  • Domes-vaults
  • Water fountain

Modern energy efficiency measures

  • Insulation of the external envelope
  • Energy efficient light bulbs

Modern renewable energy systems

  • Different photovoltaic systems (3.6 kWp) with estimated production of 7000 kWh/a
  • Wind turbine with 1 kW nominal capacity with estimated production of about 2550 kWh/a

Main results of the Pilot Project

The training and demonstration centre for green building technologies is almost a "Zero-Energy Building", showing a combination of traditional vernacular and modern passive measures as well as the application of renewable energies.

The focus of the centre is on training and applied research; it has not been conceived as a model building for dissemination. Therefore, the moderate pay-back time of 10 years for all realized measures is not critical. (re. graph 1)

Graph 1:

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However, a part of the implemented measures is highly cost-efficient and can be replicated in comparable buildings (re. graph 2)

Graph 2:

g2_isr

Supporting material

See the general view of the project by clicking here.

See the inside view by clicking here.

See the dome view by clicking here.

Israel PP in progress, download photos by clicking here.

Download PP Poster Israel here.

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