ING DIRECT BANK

ING DIRECT BANK

PHOTOVOLTAIC SKYLIGHT
offices ing direct onyx solar

FEASIBILITY STUDY OF AMORPHOUS SILICON SKYLIGHTS IN MADRID

<0,02€
Energy cosy

34%
Reduction in HVAC energy demands

55%
Internal Rate of Return

<2 years 
Payback

ING, the largest online bank in the world, pledged their commitment to Onyx Solar®’s technology with the integration of a photovoltaic glass skylight in the central garden of their headquarters in Las Rozas, Madrid.

The skylight, with a surface area of over 200 m2 , is comprised of 78 amorphous silicon glass modules with a semi-transparency degree of 20% (L vision) and dimensions of 2,560 x 1,176 mm.

This skylight has a power capacity of 7 kWp and is capable of generating nearly 13,000 kWh of clean, free energy yearly, thus preventing the release of almost 9 tons of CO2 into the atmosphere while supplying over 700 lights throughout the building.

In addition to generating power, the glass modules employed filter up to 99% of ultraviolet radiation and 95% of infrared light. These modules also have an optimal Solar Factor which enables the entry of daylight while preventing the greenhouse effect, enhancing considerably the comfort of its occupants. The g value is between 20% and 40%, depending on the degree of semi-transparency.

Data:

  • superficieTotal area - 223 M2
  • electricidad generadaElectricity generated per year - 12.550 kWh
  • puntos de luzTotal lighting points operating 4 hours a day - 715 lighting points
  • emisiones CO2 evitadasAvoided CO2 emissions per year - 8.408 CO2
  • barriles petroleo ahorradosBarrels of oil saved per year - 8 barrels

"With the photovoltaic glass modules in the skylight, we managed to exploit all the energetic potential of this area, while providing our garden with a pleasant atmosphere”. “In this way, this area represents a further example of our commitment to the environment; we achieve considerable energy savings, we use resources responsibly, we promote sustainable architecture and we gain a different, innovative workplace”.

Juan Carlos Castillo, Director de Servicios Generales y Seguridad de ING Bank.

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