VLTSA Voltalia

Start of construction works for the hybrid power plant combining solar energy and storage in Sainte-Anne, western French Guiana

Start of construction works for the hybrid power plant combining solar energy and storage in Sainte-Anne, western French Guiana

Start of construction works for the hybrid power plant combining solar energy and storage in Sainte-Anne,

western French Guiana

Voltalia (Euronext Paris, ISIN code: FR0011995588), an international player in renewable energies, announces that it has begun site preparation work for its hybrid solar power plant, with a photovoltaic capacity of 43 megawatts and an installed battery capacity of 135 megawatt-hours in French Guiana

"The launch of construction for the Sainte-Anne power plant marks a significant milestone for Voltalia and for the energy transition in French Guiana. This innovative project, combining solar power, storage, and biofuel, addresses the growing electricity needs of western French Guiana while ensuring reliable and low-carbon energy production. We are proud to contribute to the energy supply of Saint-Laurent-du-Maroni and its surrounding areas, in line with the region’s Multi-Year Energy Program (PPE). French Guiana. This project reflects our long-term commitment to the sustainable and responsible development of the region," says Robert Klein, Chief Executive Officer of Voltalia.

Fully aligned with the PPE for French Guiana, this hybrid power plant combines 43 megawatts of photovoltaic panels with a lithium-ion battery storage system delivering 34 megawatts of power and a storage capacity of 135 megawatt-hours. Additionally, seven megawatts of HVO1 biofuel-powered generators will be used solely in extreme emergency situations to support the grid, thereby further securing the electricity supply in a region with a strained electrical network.

The Sainte-Anne hybrid power plant will produce around 50 gigawatt-hours of renewable electricity per year, equivalent to the consumption of 50,000 people in French Guiana. It will also prevent the emission of 45,300 tons of CO2 annually.

Located in western French Guiana, the Sainte-Anne project represents a major step forward in the energy transition in French Guiana and in securing the electricity supply to western French Guiana, particularly the fast-growing conurbation of Saint-Laurent-du-Maroni. The project has been designed to provide an effective response to the growing energy needs of western French Guiana, while ensuring responsible regional integration. Located close to the EDF source substation at Carrefour Margot, it is strategically placed to facilitate its connection to the electricity grid.

Site preparation work began at the end of July. Work will then continue for around three years, with commissioning scheduled for 2028.

Next on the agenda: Q4 turnover 2025, on January 28, 2026 (post-closing)

About Voltalia ()
Voltalia is an international player in renewable energies. The Group produces and sells electricity from its wind, solar, hydro, biomass and storage facilities. It has 3.3 GW of capacity in operation and under construction, and a portfolio of projects under development with a total capacity of 17.4 GW.



Voltalia is also a service provider, supporting its renewable energy customers at every stage of their projects, from design to operation and maintenance.

A pioneer in the business market, Voltalia offers a comprehensive range of services to businesses, from the supply of green electricity to energy efficiency services and the local production of its own electricity.



 



With more than 2,000 employees in 20 countries on 3 continents, Voltalia has the capacity to act globally on behalf of its customers.



 



Voltalia is listed on the Euronext regulated market in Paris (FR0011995588 - VLTSA) and is included in the Enternext Tech 40 and CAC Mid&Small indices. The company is also included, amongst others, in the MSCI ESG ratings and the Sustainalytics ratings.
Loan Duong, Director of Communications & Investor Relations

Email :

T. +33 (0)1 81 70 37 00
Seitosei Actifin

Press Contact: Jennifer Jullia

Email:

T. +33 (0)1 56 88 11 19




1 HVO: Hydrotreated Vegetable Oil. The HVO used at the Sainte Anne power plant will be sourced from sustainable and renewable origins in accordance with the current RED regulation (used cooking oils, residual oils, and animal fats).

Attachment



EN
16/12/2025

Underlying

To request access to management, click here to engage with our
partner Phoenix-IR's CorporateAccessNetwork.com

Reports on Voltalia

 PRESS RELEASE

Start of construction works for the hybrid power plant combining solar...

Start of construction works for the hybrid power plant combining solar energy and storage in Sainte-Anne, western French Guiana Start of construction works for the hybrid power plant combining solar energy and storage in Sainte-Anne, western French Guiana Voltalia (Euronext Paris, ISIN code: FR0011995588), an international player in renewable energies, announces that it has begun site preparation work for its hybrid solar power plant, with a photovoltaic capacity of 43 megawatts and an installed battery capacity of 135 megawatt-hours in French Guiana "The launch of construction for the ...

 PRESS RELEASE

Début de construction pour la centrale hybride alliant solaire et stoc...

Début de construction pour la centrale hybride alliant solaire et stockage de Sainte-Anne dans l’ouest guyanais Début de construction pour la centrale hybride alliant solaire et stockage de Sainte-Anne dans l’ouest guyanais Voltalia (Euronext Paris, code ISIN : FR0011995588), acteur international des énergies renouvelables, annonce avoir débuté les travaux de préparation du site pour sa centrale hybride d’une puissance photovoltaïque de 43 mégawatts et d’une capacité installée en batteries de 135 mégawattheures en Guyane française « Le lancement des travaux de la centrale de Sainte-Anne ...

 PRESS RELEASE

Voltalia SA: Total number of shares and voting rights in the share cap...

Voltalia SA: Total number of shares and voting rights in the share capital as of November 30, 2025  Total number of shares and voting rights in the share capital as of November 30, 2025 (Articles L. 233-8 (II) of the French Commercial Code and 223-16 of the General Regulations of the French Financial Markets Authority)  Date Total number of shares in the capital  Number of theoretical voting rights Number of exercisable voting rights 11/30/2025 131 318 716223 413 949223 035 459 Next on the agenda: Q4 2025 turnover, January 28, 2026 (after market close) About Voltalia ()Voltalia is an intern...

 PRESS RELEASE

Voltalia SA : Nombre total de droits de vote et d’actions composant le...

Voltalia SA : Nombre total de droits de vote et d’actions composant le capital en date du 30 novembre 2025 Nombre total de droits de vote et d’actions composant le capital en date du 30 novembre 2025 (Art. L. 233-8 (II) du Code de Commerce et Art. 223-16 du Règlement Général de l’AMF) Date Nombre d’actions composant le capital  Nombre de droits de vote théoriques Nombre de droits de vote exerçables 30/11/2025 131 318 716223 413 949223 035 459 Prochain rendez-vous : Chiffre d’affaires du quatrième trimestre 2025, le 28 janvier 2026 (après bourse) A propos de Voltalia ()Voltalia est un acteu...

 PRESS RELEASE

Voltalia SA: Total number of shares and voting rights in the share cap...

Voltalia SA: Total number of shares and voting rights in the share capital as of October 31, 2025  Total number of shares and voting rights in the share capital as of October 31, 2025 (Articles L. 233-8 (II) of the French Commercial Code and 223-16 of the General Regulations of the French Financial Markets Authority)  Date Total number of shares in the capital  Number of theoretical voting rights Number of exercisable voting rights 10/31/2025 131 318 716223 413 961223 021 890 Next on the agenda: Q4 2025 turnover, January 28, 2026 (after market close) About Voltalia ()Voltalia is an internat...

ResearchPool Subscriptions

Get the most out of your insights

Get in touch