Starting this August, Reuniwatt will intensify their activities in Australia. TotalEnergies supports Reuniwatt in its international development. TotalEnergies’ support is ideal for developing Reuniwatt’s business and enables us to offer our employees abroad a comfortable and stimulating working environment, in the presence of colleagues from the same sector of activity. The collaboration was announced at Intersolar 2024 in Munich in a press release from TotalEnergies, from which an excerpt is reproduced below

Reuniwatt: a pioneer in weather forecasting for renewable energies for 15 years

Founded by Nicolas Schmutz in La Réunion in 2010, Reuniwatt offers cutting-edge solutions for high-resolution observation and forecasting of cloud cover and solar radiation. Initially applied to renewable energies (ENR), the company has gradually deployed its solutions in the fields of Atmospheric Sciences, Defense and Space. It also has offices in Paris and Toulouse. Thanks to substantial R&D efforts, Reuniwatt is recognized for its technological advances, and has become a key player with regards to innovation in the ENR sector.
In total, the company has registered 7 patents, invested over 400,000 hours in R&D and published over 100 scientific papers. The company has also been awarded the French Tech 120 prize for two consecutive years (2020/2021). In concrete terms, its solutions make it possible to balance power grid management using forecasting to cope with intermittent energy production, to contribute to a better understanding of climate evolution through atmospheric sciences, and to improve data transmission between satellites and the Earth.

A strategic partnership with TotalEnergies to develop Reuniwatt internationally

A few weeks from now, Pierre Arnal, who recently joined the company, will be representing Reuniwatt in Australia, working as a VIE at TotalEnergies’ Melbourne subsidiary.

Nicolas Schmutz, CEO of Reuniwatt, comments: “It’s crucial for a growing company like ours to know that the new team members we send to other
to another continent are not alone. In this respect, TotalEnergies’ support is ideal for developing our business in remote markets in complete security. This solution enables us to offer our employees abroad a comfortable and stimulating working environment, in the presence of colleagues from the same business sector.

I know TotalEnergies well, having worked there before joining Reuniwatt. I’m delighted that my new company has received this support, which will enable me to develop our activities in Australia. Thanks to TotalEnergies’ premises, I’ll be able to confidently start developing Reuniwatt’s business in the region“, explains Pierre Arnal, Business Developer at Reuniwatt.

Australia: a strategic market for Reuniwatt

Australia offers a stable environment conducive to business development and large-scale infrastructure. The country has embarked on a policy of energy transition, and is gradually moving away from coal and deploying renewable energy on a massive scale. However, the variable nature of renewable energies poses particular challenges. In 2016, a number of incidents highlighted the importance of of forecasting electricity production in order to plan supplies effectively. The country is now a strict obligation to plan power generation in order to mitigate the risks of intermittency.
What sets Reuniwatt apart is its ability to meet this requirement with innovative solutions adapted to the specific characteristics of the Australian grid, in particular the obligation to provide forecasts in very short time steps. The company’s ambition is also to establish links with research organizations, particularly in the space sector, thus strengthening its local presence and expertise. To achieve this, it was essential for Reuniwatt to strengthen its local local presence. The new office in Melbourne, supported by TotalEnergies, will help them establish a firm foothold in the region and contribute to the Australian energy ecosystem. This presence in the southern hemisphere and the Pacific also has the advantage of easing the access to a new market beyond Australia, which should help contribute to the company’s growth.

About Reuniwatt (

Reuniwatt is a major player of the solar radiation and cloud cover assessment and solar and wind power forecasting. Based on solid Research and Development works, the company offers reliable products and services intended for professionals of various fields, making the best out of two key facets of the meteorology: atmospheric physics and data sciences. A particular focus has been placed on solar energy forecasting, while developing cutting edge solutions to improve the short-term prediction of the solar resource.
The company has won many grants, including H2020’s SME Phase 1 programme, which makes Reuniwatt a European Champion with regard to innovation. Reuniwatt has also been selected among the national fast-growing companies to join the prestigious French Tech 120 programme in 2020 and 2021, and the French Space Tour 2021.