Towards sustainable buildings Case studies of innovation and technologies. Istanbul - April

Transcription

1 Towards sustainable buildings Case studies of innovation and technologies Istanbul - April

2 ASTALDI at a glance Who is Astaldi? Astaldi is one of the most successful contractor in Italy and abroad, operating also as promoter of project finance initiatives and concessions manager. What does Astaldi? Transport infrastructures, water and renewable energy, civil and industrial buildings represent the Group s key sectors, the ones where Astaldi operates as contractor and concession operator. Where is Astaldi? Listed on the Stock Exchange since 2002, Astaldi currently operates in 23 countries (Algeria, Brazil, Bolivia, Bulgaria, Chile, Costa Rica, El Salvador, Guatemala, Honduras, Italy, Nicaragua, Panama, Peru, Poland, Romania, Qatar, Saudi Arabia, Turkey, UAE, USA, Venezuela).

3 How ASTALDI reduces its environmental impact Photovoltaics Water recycling Trigeneration Bio-fuels Geothermics Inverters through the use of Insulating materials Passive solar technologies LEDs Wind power Solar thermal collectors

4 Case study 1: ASTALDI head office in Rome, Italy (work in progress) 2,000 m 2 of floor space 3 floors + basement Population of 300 people Energy Audit Energy Saving Actions Results

5 Case study 1: ASTALDI head office in Rome, Italy (work in progress) Energy Audit Water heating 4% Cooking 6% Space cooling 8% Others 15% Space heating 11% Illumination 29% Servers 14% Categories Energy consumed by the building Illumination kwh 100 TEP 29% Servers kwh 49 TEP 14% Computers kwh 11 TEP 3% Printers kwh 7 TEP 2% Ventilation kwh 16 TEP 5% Pumps kwh 11 TEP 3% Space heating Sm 3 37 TEP 11% Space cooling kwh 29 TEP 8% Cooking kwh 23 TEP 6% Water heating kwh 14 TEP 4% Others kwh 52 TEP 15% 349 TEP 100% Pumps 3% Ventilation 5% Printers 2% Computers 3%

6 Case study 1: ASTALDI head office in Rome, Italy (work in progress) Energy Saving Actions Substitution of fluorescent lamps and halogen lamps with LEDs with an energy saving of illumination up to 60%. Photovoltaics: 2,544 CIS panels on roof, vertical walls and parking areas. A PV system with 184 kw of power rating with an energy production of 200,000 kwh/year. External insulation: with the use of insulating materials based on nanotechnologies or natural fibers to increase the thermal resistance of the building. Installation of a thermal solar system with a capturing surface of 50 m 2 to produce 2,500 l/day of hot water. Creating vertical gardens to improve thermal resistance and utilizing plants that absorb traffic pollution. Installation of a trigenerator with a simultaneous production of electricity, heating and refrigeration with an energy saving of 25% compared with a separate production.

7 Case study 1: ASTALDI head office in Rome, Italy (work in progress) Results 60% of primary energy consumed by the building will be saved by the energy saving actions. The building will produce energy for itself.

8 Case study 2: ASTALDI CONSTRUCTION head office in Davie (FL-USA) PV system power rating: 24kW 168 PV thin film modules Building-Integrated Photovoltaics 363 m 2 of PV area 30,000 kwh/year 20 tco 2 /year saved (USA conversion factor)

9 Case study 2: ASTALDI CONSTRUCTION head office in Davie (FL-USA) Em [kwh/month] January February March April May June July August September October November December A real-time monitoring system serves as an educational tool and continuously measures and shows the real electricity production and environmental offsets of the PV system.

10 Case study 2: ASTALDI CONSTRUCTION head office in Davie (FL-USA) Other energy saving actions conducted through the use of the LEED guidelines Installation on the roof of an insulation membrane with solar rays reflective capacities to reduce cooling energy consumptions. Installations of high efficiency lighting. Installation of motion control light sensors in common areas to minimize the amount of time lights are left on after employers walk away. Introduction of more natural exterior light into internal office spaces through the use of interior office windows and reflective ceilings tiles. Installation of in line instant-hot water heaters that heat only on demand and not all day long like a typical boiler. L E E D Leadership in Energy & Environmental Design

11 Case study 3: Hospital in Mestre, Venice, Italy Functional surface areas: total m 2 7 floors above ground level + 3 underground floors Availability of 680 beds m 2 transparent surface Double skin façade system with a mechanically ventilated air gap High levels of sound insulation

12 Case study 3: New hospital in Mestre, Venice, Italy A winter garden inside the building m 2 green areas Artificial lakes with water reserves

13 Case study 4: Metro C Graniti Station, Rome, Italy (work in progress) Photovoltaic modules on parking areas: 450 kwp Building Integrated Photovoltaics on 8 buildings: 1 MW kwh/year of clean energy Saving of 340 tep/year Saving of 870 tco2/year

14 Case study 5: Nuovo Polo Fieristico, Milan, Italy 6 heat pumps with 1 MW of power rating Geothermal system that uses well water as heat source The system supplies heating and cooling to all buildings in the central corridor of the exhibition areas

15 Case study 6: Tuscan hospitals - Prato, Pistoia, Massa, Lucca Italy (work in progress) 4 hospitals Functional surface areas: total m 2 Availability of beds Cogeneration 2.6 MWel Photovoltaics 200 kw Water recycling Inverters

16 Towards sustainable buildings Case studies of innovation and technologies Istanbul - April Thanks for your attention!