Cycling on solar power

The first GP JOULE e-bikes on the island of Sylt demonstrate that renewable energy and mobility make a perfect match. 

Reußenköge, 12.08.2016
Pedalling hard to beat the force of the North Frisian wind on a bicycle is a thing of the past. This is certainly true on the island of Sylt, where holidaymakers and islanders can now hire GP JOULE e-bikes. In collaboration with the Sylt tourist service ISTS, GP JOULE now provides e-bikes that are 100 per cent solar powered. As such, the new bicycles tap into the island’s natural elements of wind and sun - not just as a source of fun and recreation but also harnessing them to offer a whole new experience.

“Our e-bikes run on electricity which is generated 100% from sunlight on the island. In this way we want to demonstrate how it is possible for people to make direct use of regionally produced renewable energy - establishing a link between the markets for mobility and power. And of course by providing our e-bike service, we want to show people that there’s a fun factor associated with renewable energy, too,” says Ove Petersen, founder and managing director of GP JOULE. “The bikes have a range of 100 kilometres when run on electrical power, so a tour of the island of Sylt is no problem at all.”

The supply of 100 per cent renewable energy for the bikes is taken care of by a photovoltaic system consisting of 10 miniJOULEs installed on the beach promenade near the Westerland swimming pool “Sylter Welle”. miniJOULEs are modular solar energy systems made by GP JOULE that are easily affordable and well-suited for use at home, for example. They allow domestic users to implement the energy turnaround all by themselves - especially home-owners wanting to save money by harnessing their own self-generated power. The miniJOULEs installed in Westerland have a total generation capacity of 1,950 watts module output, ensuring that at least as much solar energy is produced as is required by the 30 GP JOULE e-bikes currently available for hire. This demonstrates clearly that a 100 per cent supply of renewable energy is possible in the field of mobility, too – offering both fun and independence.

“In this way, soaking up the sun on Sylt has a double meaning: Sylt is all about sunshine, wind and fun, and our e-bikes allow consumers to enjoy all these in the form of renewable energy, too. The bicycles show how CO2-free mobility can work in practice. Getting around by climate-friendly means is a top priority in Sylt, both for holidaymakers from the cities and for the islanders themselves. This is why we decided to start this pilot project in collaboration with the island’s tourist service - a very satisfying partnership,” explains Ove Petersen, founder and managing director of GP JOULE. 

In addition to the classic GP JOULE men’s bicycle and a low-entry model for women and men, the “Bike & Sport Infocenter” at the “Sylter Welle” swimming pool in Westerland also offers a sporty mountain e-bike for hire. The rental fee is EUR 20 per day. The bikes can either be rented directly on site or reserved via smartphone app or the ISTS homepage before visitors set off on their holiday. A bicycle lock and charge cable are included of course. All GP-JOULE e-bikes are not just offered for hire at the “Bike & Sport Infocenter” but are available for purchase, too. 

As an innovative company, GP JOULE is pioneering the use of renewable energy in the mobility sector so as to promote climate-friendly mobility - especially in the north of Germany. GP JOULE CONNECT is a programme offered by the company that presents attractive mobility solutions using 100% clean power generated in the region. The e-bikes are just one example of the many different ways it is possible to tap into the energy value chain.

Media representatives may use the e-bikes for test ride purposes. If you are interested, please get in touch with GP JOULE using the contact information below.

For visual material, see: 

Press contact:
Timo Bovi
Director Governmental Relations and Public Affairs
Tel.: +49 (0) 4671-6074235
Mobile: +49 (0) 177 8830622
E-mail: t.bovi(at)

The company GP JOULE:
GP JOULE is a universal, innovative and authentic partner for all areas of renewable energies. Under the motto "TRUST YOUR ENERGY", the company has developed, planned and realised projects for the future-oriented use of sun, wind, biomass and energy storage since 2009. Based on a sense of respect and responsibility for mankind and the environment, GP Joule develops intelligent energy concepts and integrated solutions, thereby ensuring that the power turnaround becomes a genuine energy turnaround. The guiding principles of company founders and agricultural engineers Ove Petersen and Heinrich Gärtner include authenticity, trust, fair play, innovation and quality as well as the aim to contribute to 100% of energy consumption being drawn from renewable sources in the future. GP JOULE is thus able to offer investors a highly promising and profitable investment option. GP JOULE operates four sites in northern and southern Germany as well as two international sites in the USA and Canada.