About us

Our story

Everything starts with clean water

Solvatten is a Swedish social enterprise that brings Solvatten Solar Safe Water System to customers, charities and distributors around the world. We also partner with organisations and micro-finance intitutions to increase reach and affordability. A charitable branch of Solvatten was founded in 2013, focused on improving the lives of, above all, women and children, living without access to safe water.

Solvatten is the brainchild of the Swedish inventor, Petra Wadström. The story began in Australia in the early 90s, where Petra was living with her husband Carl and their family. The Wadström’s professional background was diverse, spanning both medical science and the arts.

Living in Australia, Petra was struck by the abundance and intensity of natural sunlight. She was convinced that it must be possible to harness its strength for the betterment of those living in poverty.

Exposure to sunlight was key, as this has the effect of both purifying and heating water. After succesful initial trials of the device several field visits throughout Africa and Asia took place, where Petra and her small team began conducting studies to validate the efficacy of her creation in a variety of contexts. Today, Solvatten is used in more than 20 countries around the world.

We are Solvatten

Our mission is to reach as many people as possible whose life will be better from using Solvatten. Our organizational model is a hybrid consisting of two parts, a non-profit body and a company governed by one mission.

Our team

Petra Wadström

CEO and Founder

David Wadström

Communication, Marketing & Fundraising

Oliwer Wadström

Sales & Project Manager

Mattias Danielsson

Business Development

Johanna Felix

Project Manager & WASH Specialist

Charlotte Köhler Lindahl

Secretary General

Board members

Carl Wadström

Chairman (AB)

Gunnar Åkerblom

Board Member

Erik Stern

Board Member

Magnus Ledin

Board Member

Nancy Holm

Board Member (Foundation)

Eliza Kücükaslan

Board Member (Foundation)

Charlotte Köhler Lindahl

Secretary General and Board Member (Foundation)

Kate Wiberg Miller

Board Member (Foundation)

Tove Björklund

Board Member (Foundation)

David Wadström

Chairman (Foundation)

Contact us


+46 8 777 29 05


Roslagsgatan 56, 113 54 Stockholm, Sweden


We have received numerous awards, but we just want to keep on doing

Both the Solvatten invention itself and the organisation’s founder, Petra Wadström, have achieved national and international recognition for their contributions to bringing safe, hot water to those who need it.

In 2013 President Barack Obama visited the Royal Institute of Technology (KTH) in Stockholm. Petra Wadström was given the opportunity to present the device and explain how it is used around the world to improve health, empower women and lower greenhouse gas emissions.

A selection of awards and recognitions

EU Prize for Women Innovators
A European-wide competition recognizing the most-talented and successful woman entrepreneur in Europe.
ISNTD Water Awards
Rewarding outstanding innovations in WASH with significant impact on tropical diseases
Ocean Exchange Finalist
Solvatten is one of fifteen worldwide solutions with the ability to generate economic growth and increase productivity while reducing the use of nature's resources and the production of waste.
Momentum for Change Winner 2015
Solvatten is awarded for how it is used to address climate change challenges. The award is spearheaded by the UN Climate Change Secretaria, UNFCCC
Social Entrepreneur of the Year 2015
Mid Sweden University has with the assistance of Schwab Foundation awarded Petra Wadström and Solvatten because it is as a solution that sets out to improve the lives of millions living in poverty.
Winner Swedish Woman of the Year 2015
Swea International is a women network promoting Swedish Culture and Tradition in the world.
Winner Polhems Award 2013
The Polhem Prize is a highly prestigious Swedish prize awarded by Swedish Association of Graduate Engineers (formerly Civilingenjörsförbundet and Svenska Teknologföreningen) for a high-level technological innovation or an ingenious solution to a technical problem.
Energy Globe Awards 2013
Solvatten is nominated by an international panel of experts focusing on energy and sustainable development. The jury selected the most sustainable solutions and awarded Solvatten for the UN Habitat in Mali, Project.
Solar Flare Award 2012
“Solvatten is a perfect example of the way in which mankind can use the sun as a source to improve and, in this case, save lives This is exactly the sort of solution that we want to promote with a Solar Flare Award.”
Soroptimists’ 2012 prize
Every two years, the Soroptimists award a prize to a woman in Sweden who has helped to illustrate the woman’s position in the professional life and society. In 2012, the prize went to Petra Wadström, the creator of Solvatten.
The 2011 Änglamark Prize
Petra Wadström won the prestigious Änglamark prize that is awarded each year by to encourage and highlight initiatives in the environmental field. The subject for 2011 was the preservation of natural resources. The jury justified its choice in saying: “Solvatten is a simple solution to a major global problem through treating and heating water. The fact that it also reduces the hard work that women have to do and saves the forests that would otherwise be burned to heat water is a further example of innovative resource management”
The International Green Award
London 20012. Solvatten was awarded the prize for best innovation.
World EXPO 2010, Shanghai
Solvatten exhibited along with the best Swedish innovations in the Swedish pavilion at Shanghai Expo 2010. The exhibition fair had around 70 million visitors.
The Smithsonian 2010
New York Cooper-Hewitt National Design Museum.The museum chose to exhibit Solvatten at the international “Why design now” fair. The exhibition opened in May 2010 in New York and has yet to tour the world.
WWF Climate Solver 2009
After careful considerations and calculations, WWF Sweden designated Solvatten as one of seven inventions worthy of the title Climate Solver 2009. The WWF explained its decision: “Solvatten is an inspiring example of a non-fossil-fuel, non-nuclear fuel climate invention with the potential to heavily reduce carbon dioxide emissions”
King Carl XVI Gustaf’s 50-year fund
Representatives of The Royal Academy of Engineering Sciences, The Royal Swedish Academy of Sciences, The Royal Swedish Academy of Agriculture and Forestry and The Confederation of Swedish Enterprise awarded Solvatten a grant in 2009. The grant is awarded annually to promote research, technical development and enterprise that contribute to the sustainable utilization of natural resources and the preservation of biodiversity.
The “SKAPA” (CREATE) prize
For the best Swedish invention in memory of Alfred Nobel, 2008. The jury, which consists of a respectable group of academics and heads of Swedish companies, explained its decision: “The Skapa grant goes to an innovation that can adress the needs faced by those who live in poverty. The Solvatten invention can facilitate a better life for hundreds of millions of people”.
Environmental Innovation 2008
The prize is awarded every year by Swentec (the Swedish Environmental Technology Council), VINNOVA (the Swedish Authority for Innovation and Sustainable Growth), the Swedish Energy Agency and the Swedish Agency for Economic and Regional.