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    Optimizing Building’s Performance
“Gurtekin, Hartkopf and Loftness of Carnegie Mellon University reported average energy savings of 52% thanks to the use of high-performance daylighting systems.“ (Carnegie Mellon University - 2004)
 Make the Most of Your Investments
Solution: Somfy’s centralized automation solutions are easy to integrate and operate, and help reduce running costs.
> By reducing energy consumption (with savings of up to 10% on heating in winter and indoor cooling gains of up to 16° F in summer).
> By protecting external blinds from bad weather.
> By ensuring all sun protection devices operate with
gentle movements that extend their life spans.
> By reducing the number of manual operations required and therefore also the building’s running costs.
Benefits: Ensuring profitability is an essential requirement for office buildings. These facilities must therefore be designed and built in such a way as to extend their lifetime. The high-quality design and manufacturing of Somfy solutions mean that buildings fitted with these solutions are assured optimum sustainability:
> The bioclimatic façades enable architectural creativity that gives the building all its value.
> The automatic systems can be used to align all sun protection devices, ensuring design of the façade.
> The centralization systems are upgradeable, so they can be easily adapted to a change of activity within the building or complying with changes in energy regulations.
Save Energy
Solution: The sensors and automatic devices used in Somfy solutions reduce energy consumption:
> By prioritizing the use of natural light.
> By reducing the solar gains in summer.
> By adapting building openings to actual occupancy periods (taking account of variable working hours, weekends, etc.).
Benefit: Somfy offers Dynamic InsulationTM solutions, so you no longer have to choose between comfort and energy savings.
Energy savings with automated sun protection devices
According to a simulation tool created by Lund University in Sweden, an investment of 1% to 2% of the total cost of the building results in energy savings of 20% to 40% (see table below).
          Reduced by 32.81% (1.319 kWh compare to 1.963 kWh)
Reduced by 40.28% (1.644 W compare to 2.753 W)
Reduced by 32.12% (1.712 kWh compare to 2.522 kWh)
Reduced by 39.84% (1.720 W compare to 3.859 W)
Reduced by 42.93% (3.111 kWh compare to 5.451 kWh)
Reduced by 49.64% (1.698 W compare to 3.372 W)
GENEVA (Switzerland)
Electricity consumption (annual)
Reduced by 33.86% (1.711 kWh compare to 2.587 kWh)
Cooling load reduction (in Watt)
Reduced by 40.29% (1.602 W compare to 2.683 W)
Total savings on consumption (annual)
At price of CHF 0,19 kWh: CHF 122,36
At price of US$ 0.129 kWh: US$ 104.49
At price of INR 0,19 kWh: INR 444,6
At price of RMB 0,48 kWh: RMB 420,48
         Simulation definition: A 18 m2 office room, with 4 m2 window glass (double glazing Low-E except for New Delhi and Shanghai Double glazing, Façade wall U-Value: 0,33 W/m2K), representing 70% of the room façade section, south oriented. Sun protection device is an internal grey PVC. The comparison is made between sun protection device and no sun protection device, depending on light level considering 2 persons occupying the room, equipped with 180 W artificial lighting (detailed analysis available on demand).

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