Technology partner
CSEM - Centre suisse
et de microtechnique

Funding sponsor
BCN - Banque Cantonale

Guillaume Perret


World Premier Photos-Voltaic Exhibition

see movie Scroll down

Imagine if billboards could provide energy

High-resolution photovoltaic pictures

Kaleo follows a tradition of innovative solutions to develop novel energy strategies for future generations. The Kaleo project makes us forget about the visual aesthetic of photovoltaic panels, instead these modules appear as a high definition image while still producing electricity from light.

Energy, emotion and texture

by Guillaume Perret, photographer

These are the 3 keywords that inspired me to capture the portraits integrated to the solar panels. I was inspired by the return of good weather and happiness to welcome the first rays of sun that warm us after a long winter. I tried to express through my portraits an emotion of happiness and abandonment. A unique moment facing the sun for recharging it’s own internal baterries. A special moment received as a gift , holding the sands of time.»
Portrait Kaleo 1 Portrait Kaleo 2 Portrait Kaleo 3 Portrait Kaleo 4 Portrait Kaleo 5

From lab to street.

technologies by CSEM, Switzerland

CSEM is a Swiss research and development center specializing in microtechnology, nanotechnology, microelectronics, system engineering, photovoltaics and communications technologies. Over the last few years, CSEM has excelled as a pioneer in the development of esthetic photovoltaics solutions, intended to broaden the range of durable architectural materials. By offering a new perception of solar energy, Kaleo technology could in time contribute to an increase in architectural solutions that integrate photovoltaic systems.
  1. A

    Back+front glass

    strengthened green glass 2 mm thick

  3. B


    polymeric foil with butyl edge sealant

  4. C

    solar cells

    c-Si PERC cells

  5. D


    High resolution printed image on polymeric substrate

    images are printed on a film that has been specially developed to be durably integrated in the solar module.


five portraits 2 x 1.6 m. spread in ten 1x 1.6 m. photovoltaic panels

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Solar inverters specifically designed to work with power optimizers. Superior efficiency and excellent reliability. Small, lightweight and easy to install Outdoor and indoor installation Integrated arc fault protection and rapid shutdown for NEC 2014 and 2017 690.11 and 690.12. All inverters are UL1741 SA certified, for CPUC Rule 21 grid compliance.