Who we are?

Field of crops under the agricultural canopy TSE, solar energy expert

Our ambition is threefold : to fight against global warming, to support the agricultural transition of our farmers and to produce the least expensive energy

TSE is a French company committed to the fight against climate change. Thanks to its approach of continuous innovation and its cutting-edge photovoltaic and agrivoltaic installations, it is now recognised as a true benchmark in solar energy and agrivoltaics.

As a local developer of solar power plants and producer of renewable energy, TSE is helping farmers make the transition to an agroclimate. It offers french companies the cheapest low-carbon electricity at a stable and predictable cost. In this way, it is taking concrete action to promote their competitiveness and the country's sovereignty.

Our vision

TSE was born in 2016 from a simple observation : we consume twice as much fossil fuel today as we did in 1960.

The climate crisis is worsening, demand for electricity is rising and nuclear power stations are ageing. Electricity bills are weighing on households and businesses, while our energy sovereignty is declining : by 2022, imports will have reached €148 billion. The agricultural sector is also under threat.

It is against this backdrop that we have chosen to take action, by playing an active part in transforming the French energy model to meet the urgent need to tackle climate change.

To meet these challenges, we have innovated by focusing on agrivoltaics at a very early stage, integrating all our businesses to ensure quality, and establishing a nationwide presence to meet local needs as closely as possible.

Today, TSE is one of France's leading solar energy producers, with solar power plants and agrivoltaic demonstrators in operation.

We supply our renewable energy to manufacturers such as Biomérieux, Les Mousquetaires, Agrial and Albéa.

Thanks to our strategic choices and the expertise of our teams, we are now able to co-build practical agrivoltaic solutions with local players and farmers.

These projects contribute to the decarbonisation of the economy, greater energy and food sovereignty, and more sustainable electricity costs for industries and citizens. The value created is shared with the regions and the farming community.

Each of our projects is designed to have a positive impact on the community and offer practical support to farms. As well as developing and producing solar energy, we see ourselves as helping to adapt to climate change, alongside local stakeholders.

In the future, our regions will be able to guarantee the country's food sovereignty and the production of low-carbon energy.

A TSE partner farmer under the agricultural canopy

The story of TSE

Mathieu Debonnet and Pierre-Yves Lambert, co-founders of TSE

2016

Founding of TSE

2020

Launching of R&D on agrivoltaics
Launch of R&D on agrivoltaics
Commissioning of the Marville power plant, France's 2nd largest PV power plant

2021

Commissioning of the Marville power plant, France's 2nd largest PV power plant

2022

Inauguration of the Amance agricultural canopy, a world first
Inauguration of the Amance agricultural canopy, a world first
Inauguration of the first irrigated agricultural canopy in Brouchy

2023

Inauguration of the first irrigated agricultural canopy in Brouchy (northern France)

2023

Fundraising of 160 million euros
Fundraising of 160 million euros
Inauguration de la 1ère canopée agricole irriguée à Brouchy

2023

Founding member of the Holosolis consortium, a French photovoltaic panel factory

2024

Green energy hub project with the acquisition of the former Fonderies du Poitou site
Projet de revitalisation des anciennes fonderies du poitou

Our founders

Mathieu Debonnet and Pierre-Yves Lambert, entrepreneurs committed to solar energy and the fight against global warming, together created TSE in 2016, which has become the leading company in the photovoltaic and agrivoltaics industry in France. Pierre-Yves Lambert founded Emeraude Energy in 2006, while Mathieu Debonnet built his expertise by creating Altus Energy in 2008.

Driven by a passion for entrepreneurship and convinced of the crucial role of photovoltaics in the future of energy in France, they created TSE to respond to a simple economic problem: to produce the least expensive carbon-free French energy while supporting the agricultural transition of French communities.

Their complementary backgrounds merged to give rise to an independent French company, with French capital, distributed as close as possible to stakeholders' needs (15 offices), resolutely committed to the French energy transition, combining innovation, technical expertise and environmental commitment.

Under the joint management of Mathieu and Pierre-Yves, TSE has established itself as the French expert in photovoltaics, and the reference in agrivoltaics.

Mathieu Debonnet and Pierre-Yves Lambert, founders of TSE

Notre raison d’être

TSE has clear commitments : to fight against climate change, to strengthen our energy and food sovereignty, to be a local player in the energy and agricultural transitions and to offer quality solar solutions for farmers and the rural world, with the lowest electricity production cost.

By making the pioneering choice of agrivoltaics, by developing and operating our own solar power plants and by locating as close as possible to local needs, we can support you throughout the life of your project.

Co-building, sharing value, protecting crops from the hazards weather, producing green, competitive and French electricity : we are convinced that the energy transition is a necessity, and that it must benefit all players, from the farming world to the regions.

Culture sous la canopée agricole TSE

TSE at the heart of our communities

Aerial view of territories
TSE is committed to actively working with local communities at the heart of our country to develop sustainable energy solutions which benefit all parties.

In a constantly changing energy and agricultural landscape, TSE is committed to designing each of its projects in response to the specific needs of the regions involved. We are fully aware that the success of our initiatives depends on their harmonious integration into local communities, which is why we attach the utmost importance to their active involvement.

A trusted partner

Land identification

A few weeks

Project development

6 to 24 months

Engineering and R&D

Throughout the project

Financing, valuation & sale

Throughout the project

Construction

6 months minimum

Connection

12 to 36 months

Operation & maintenance

Throughout the project

French shareholders combining public and private interests

TSE actionnariatTSE actionnariat

Join the group

Joining TSE means becoming part of a company that has established itself as the leader in agrivoltaics in France. Together, we are contributing to 100% carbon-free, local and French energy. We are building a prosperous future for our land, regions, and the entire national community. Join us on this journey, where every action counts in building a sustainable energy future.

Des questions ?

 
How is solar energy transformed into electricity?

Photovoltaic panels capture the sun's radiation, then neutralize the electrons through their components and produce a direct electric current which is then transformed into alternating current by the inverters for common uses.

 
How long does it take to design and built a solar power plant ?

A solar power plant can be designed and built within 3 to 5 years.

 
What is a photovoltaic power plant made of?

A photovoltaic power plant is composed of various elements: solar panel arrays, a transformer and delivery station, a fire tank, outdoor fences and traffic lanes.

 
How do I know if my plot is eligible for an agrivoltaic project?

Our teams will first review your needs and agricultural practices with you, to offer you the most suitable solution. We will then conduct a study of your plots to verify compatibility in terms of topography, zoning, access, distance to the grid, etc.

 
Why buy green energy?

Solar energy, qualified as green energy because it is not derived from fossil fuels, produces electricity that emits fewer greenhouse gases, remains at a stable price and secures a sustainable energy supply.