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Increasing solar installed power on existing urban areas and protected architecture

July 2020
Gallery SOLARBOX 1
Gallery SOLARBOX 1


SOLARBOX is a solar architectural glass structure designed to deliver sustainable energy for existing structures and protected buildings.

The existing building stock represents 99% of a city. Integrating renewable energy sources in existing buildings can pose challenges due to technical and regulatory restrictions. SOLARBOX proposes a new renewable energy solution for existing buildings to address this challenge. SOLARBOX utilises PV technology in laminated glass to produce power from the sun whilst respecting visual regulatory requirements for old buildings. SOLARBOX is highly customisable (e.g. size, colours), making it suitable for protected buildings such as old city centres, castles, and churches to generate clean renewable energy.

Label Date July 29, 2020
From Belgium
Maturity stage Small scale commercialization

Implementation Stories

SOLARBOX by Sun Soak Design
Implemented by Stephano Immo in Brussels (Belgium) in 2021

Stephano Immo, a real estate agency, commissioned Sun Soak Design to create the SOLARBOX BOTA as a result of a contest won in 2017. They needed an energetical update and an architectural re-qualifying of the old building, lacking visibility in its built context. The project consisted of a non-intrusive intervention as the building was fully rented, using a so-called solar Totem, shaped to be both architectural and optimized for the solar function that covered 850 square meters.


Annual production reaches 115,86 mwh/y & covers 35% of the building energy needs


The environmental benefits

  • Environmentally positive in 3-4 years
  • A medium-scale installation produces over 250 MWh of energy per year

The Financial benefits

  • Return on investment in 7 to 10 years
  • Potential to sell energy produced back to the grid
  • 2.5 times greater installed power on a rooftop compare to normal rooftop PV installation

Activity Region

  • /
  • Headquarters
  • Activity

Company Profile

Sun Soak Design

Solar architecture, solar structures & infrastructures, photovoltaic design, BIPV

View company profile
Headquarters 1170 Watermael-Boitsfort, Belgium
Contact the Solution Provider Add to Favorites

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Sun Soak Design has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.