After finishing their studies Olieslagers and Hendriks immediately started developing, producing and selling their first battery systems. This was made possible by an investment by InnoEnergy. Besides investors, the duo drew mayor attention from the market. In 2016 Wattsun reeled in their first costumer and in 2018 the first 40 Wattsun modules were produced.

Worldwide patent and international ambition

The past few years Wattsun has grown considerably. Firstly, we were granted with a worldwide patent for our battery systems. We have built various prototypes, have further developed and are continuously innovating. All in collaboration with the customers and using intensive field tests.

In 2022 our market share skyrocketed. Meanwhile, our battery systems are well known in the Netherlands and far beyond those borders. Especially within the construction sector, event industry and in the film industry the Wattsun is now indispensable. Wattsun is gaining ground in Europe, but the ambition is to make portable sustainable energy available all over the world.

The ‘Wattsun Headquarters’ have also grown in the last couple of years. From a duo into a serious scale-up with a talented group of passionate professionals that share Olieslagers and Hendriks mission. In the years to come we will keep on growing. Therefore, talent is more than welcome! Check: www.wattsun.net/vacatures.

Local production, office in Arnhem (the Netherlands)

Wattsun’s head office is located on industrial park Kleefse Waard in Arnhem. This is the most sustainable business park in the Netherlands, a location that perfectly fits our mission and vision. Our products are designed and developed in the Netherlands and the production takes place in both the Netherlands and elsewhere in Europe. This means Wattsun keeps the production chain as short and sustainable as possible.

Furthermore, we work with suppliers and manufacturers from the region to ensure short transfer lines. We also take care of local knowledge development and sharing our knowledge . From research stage to production, from the choice of materials to design, from collaboration to transport: we strive for sustainability in every step we take.

Wattsun products

Wattsun Dock+