Press release

PHYSEE Raises EUR 1.5M ($1.85M) to Accelerate Development and Sales of Transparent Smart and Sustainable Building Facade Solutions.

  • The company's PowerWindow and SmartWindow technologies bring architects, developers and investors together in their demand for smart and sustainable buildings with maximized daylight and no compromise on architectural design.
  • Speaking from the Smart Cities New York Conference PHYSEE founders, Ferdinand Grapperhaus Jr. (CEO) and Willem Kesteloo (CFO), stress the need to look at buildings from a human perspective since we spend 90% of our time inside those buildings.
  • The funding from top tier Dutch real-estate industry leaders will support strategic partnership initiatives and extensively scale-up sales and marketing.

PHYSEE Group B.V., the tech company behind the PowerWindow and SmartWindow, smart electricity generating windows, today announced that she has raised EUR 1.5M ($1.85M) with a specifically assembled Clean-Tech Real Estate Consortium. The consortium is a one-time combination of Dutch real-estate industry leaders, Daan van der Vorm (Vorm Ontwikkeling), Coen van Oostrom (Edge Technologies), Job Dura (Dura Vermeer Groep), the Van Veggel Family (Timeless investments), and tech company builder and serial investor Dinko Valerio (CRXL).

Speaking from the Smart Cities New York Conference, PHYSEE CEO Ferdinand Grapperhaus Jr. says: "A sustainable future simply must include a better view on how we develop and utilize the buildings we spend 90% of our time in. Because we spend so much time in buildings they are responsible for 40% of the global electricity consumption. At PHYSEE our mission is to make buildings comfortable self-thinking power plants. To pursue that purpose, we have a highly-driven R&D department developing different technologies to disrupt the real estate industry. Simultaneously we develop strategic partnerships with those corporates, real estate developers and portfolio owners, which are willing to play their part in the energy transition of the built environment. Our PowerWindows will make the building facade and all its modern electricity consuming technologies autonomous and our SmartWindows can turn every old building in a well-insulated smart building ready for the future. This is what makes us so passionate about realizing the untapped potential of glass facades.”

PHYSEE will use the investment to scale-up the production of its products and to further develop currently patented lab-scale technologies. Next to that the investment will enable the company to expand beyond the Dutch construction and renovation market and roll-out subsequently in large European and overseas cities. The key is to expand the rapidly growing community of building owners, developers and tenants adopting Power- and SmartWindows in their portfolio in order to make the build environment contribute impactful to one of the United Nations’ 17 Sustainable Development Goals, “Make cities inclusive, safe, resilient and sustainable”.

Daan van der Vorm, CEO Vorm Ontwikkeling, board member of the Dutch Green Building Council and lead investor of the consortium said: “Scalable real estate solutions that improve building’s energy consumption and contribute to the productivity of the labour force, have mass application potential and therefore immense opportunities to make our living environment #ParisProof. Its development is challenging, due to a conservative industry relying on numerous stakeholders not accustomed to change. Therefore, we want to set the example by taking the lead together with PHYSEE.”

Coen van Oostrom, CEO and Founder of OVG Real Estate and Edge Technologies, commented: “PHYSEE is transforming the way smart buildings will be perceived and they have developed the first technologies to make impact on both energy efficiency and building user experience without compromising on architectural design. Our industry is lacking in technological disruption, but I see a lot of potential in activating our stakeholders in time to make the difference. Supporting the further development of this technological company, intrinsically motivated by designing a cleaner and more comfortable built environment, fits that ambition perfectly.”

Bas van Veggel, Managing Partner at Timeless Investments, highlighted: "We invest in entrepreneurs. Creative young people who have limitless pioneering ambition to make the world more sustainable, smart and comfortable. We see that PHYSEE works on unique and innovative technologies that can no longer be ignored, now and in the future, in the built environment. We are happy to provide financial resources, network and knowledge to further shape product development and international expansion. "

Willem Kesteloo, PHYSEE co-founder and CFO, concluded: “It is not good enough anymore to develop and build our environment the way we’ve been doing for decades. The status quo says that a building is smart when it has a climate app. The challenge is to ask yourself which decisions your building can make for you and what data it needs to make those decisions. We know we can take the combination of smart and sustainable to the next level by developing human-centred comfortable and self-powered sustainable environments.”


Based in Delft, PHYSEE is a Delft University of Technology spin-off from 2014 founded by Willem Kesteloo and Ferdinand Grapperhaus. Since then the tech company has successfully supplied various real estate projects with their electricity- and data generating glass products: PowerWindow and SmartWindow, as the Rabobank head-office in Eindhoven and the Goede Doelen Loterij headquarters in Amsterdam PHYSEE won the Dutch start-up of the year award in 2014, Europe’s best energy start-up in 2015 and the World Postcode Lottery Green Challenge (EUR 500k) in 2016 and became World Economic Forum Technology Pioneer in 2017. As owner of a growing self-developed patent family and employer of 20+ engineers, the young tech company demonstrates that Research & Development can be exciting while having impact. 

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During the 29th MIPIM real estate conference in Cannes, France, PHYSEE has become one of the winners of the World Start-Up Competition. During the finals, 9 proptech start-ups from all over the world pitched in front of the jury and a crowd of 700 enthusiasts. PHYSEE was selected as one of the winners by the jury, consisting of various professionals with an extensive background in real estate technologies and innovations.

Winning this start-up competition, provides PHYSEE with recognition from worldwide real estate markets. PHYSEE will leverage this when expanding to European markets such as Germany, France and UK.



14th of September - After passing the necessary B Lab assessments, PHYSEE has been officially recognized as a B Corporation. 

B Corps are for-profit companies certified by the nonprofit B Lab to meet rigorous standards of social and environmental performance, accountability, and transparency.

Today, there is a growing community of more than 2,100 Certified B Corps from 50 countries and over 130 industries working together toward 1 unifying goal: to redefine success in business.


media markt innovation lab interactively exposes powerwindow 

11th of July - MediaMarkt Eindhoven shows an interactive PowerWindow-video box in its Smart Home department. During the coming month, MediaMarkt visitors can give their opinion regarding our products, get more info on how to become a PowerWindow Ambassador and take a look at a real PowerWindow!


ferdinand grapperhaus ON THE STAGE AT World economic forum 2017 annual meeting of the new champions in dalian 

29th of June 2017 = During the annual summer event of the World Economic Forum in Dalian, Ferdinand Grapperhaus shared the stage with Mr. Keith Bradsher, Bureau Chief of the New York Times China, with Mrs. Changhua Wu, Director Asia of Jeremy Rifkin Institute and Mr. Marco Gazzino, Head Partnerships and Innovation of Enel, to discuss the rising importance of technology in the light of US withdrawal from the Paris Agreement. 


vorm ontwikkeling and physee sign deal to implement 1800m2 of powerwindows

20th of June - At the Provada in Amsterdam beginning of June the first contract was signed by Daan van der Vorm, CEO Vorm Holding, Hans Meurs, CEO Vorm Ontwikkeling B.V., and Maarten de Haas, Head Business Development PHYSEE. From that point on VORM showed their commitment towards making their BOLD project as futuristic and environment friendly as possible by acquiring 1800 square meters of PowerWindows and 100 EESYboxes. In such way enabling future tenants and home owners to charge their devices with the glass they look through. 



14th of June 2017 = PHYSEE was selected among hundreds of candidates as one of the World Economic Forum’s “technology pioneers”, a selection of the world’s most innovative companies. Past recipients include Airbnb, Google, Kickstarter, Mozilla, Palantir Technologies, Scribd, Spotify, Twitter and Wikimedia. .

eerste_PWs_geinstalleerd_GDL(fotocredit Jasper Juinen).jpg

First Powerwindows in amsterdam are installed

7th of June 2017 - After a sustainable renovation, taking place over summer of 2018, the office will become home to the 600 employees. The employees will be able to charge their phones, tablets and laptops from the solarenergy produced by the PowerWindows. Additionally the energy generated from these windows will be integrated into the grid.


powerwindow technology presented on late night show jinek live

18th of January 2017 - Eva Jinek invited our CEO Ferdinand Grapperhaus to her late night television show to show the PowerWindow and tell about our experience on the Dutch trade mission. Together with HRH Constantijn Ferdinand reflected on CES 2017 and shared a part of our vision of make the build environment energy neutral. See the link for the episode in Dutch.


PHYSEE represents at CES 2017 In las Vegas

7th of January 2017 - PHYSEE was invited to join the Dutch trade mission to CES 2017 in Las Vegas and to participate on a VC road show in Silicon Valley. Together with Dutch Minister of Economic Affairs Henk Kamp and Start-Up Delta Special Envoy HRH Constantijn three of members of PHYSEE management showed our technology to thousands and pitched to the special few. Besides exposing the team also got the opportunity to get inspired.



18th of September 2016 - the winner was praised by the jury because his technology adds value to a component every building needs. The prize money could help the company take the next step and gain validation in a conservative market. The international jury was led by José María Figueres, chairman of the Board of Directors of Rocky Mountain Institute-Carbon War Room and former president of Costa Rica: “The jury is very impressed with their enthusiasm and creativity to reduce CO2 emissions. We expect to hear more from them in the future!”