Ayémé solar and battery storage project
Project
The Gabonese State, through a state-owned company, has signed a 25-year power purchase agreement with Solen SA for the development, construction, and operation of a 60 MW solar photovoltaic plant co-located with 30 MWh of battery storage in Ayémé.
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Deal Analysis
The Gabonese State, through a state-owned company, has signed a 25-year Power Purchase Agreement (PPA) with Solen SA for the Ayémé solar and battery storage project. This agreement, announced on March 4, 2026, covers the development, construction, and operation of a 60 MW solar photovoltaic plant co-located with 30 MWh of battery storage. This long-term PPA underscores a strategic commitment by Gabon to integrate significant hybrid renewable energy capacity into its national grid, aiming to enhance energy security and grid stability through the combination of generation and storage assets.
This deal is notable for its substantial capacity, combining 60 MW of solar generation with 30 MWh of battery storage, representing a significant hybrid project for the region. The Gabonese State's involvement as the offtaker, backed by a 25-year PPA, provides a strong sovereign guarantee for the project's revenue stream, de-risking the investment for Solen SA, which is responsible for the full project lifecycle. The integration of battery storage alongside solar PV is a critical feature, addressing the intermittency of solar power and ensuring a more reliable electricity supply. While the project value remains undisclosed, the long-term nature and scale of the PPA suggest a substantial investment in Gabon's energy infrastructure.
- 25-year Power Purchase Agreement (PPA) signed by the Gabonese State.
- 60 MW solar photovoltaic plant co-located with 30 MWh of battery storage.
- Gabonese State as the offtaker, providing sovereign backing for the project.
- Solen SA responsible for the development, construction, and operation of the project.
Source Intelligence
KEY DETAILS
The financing is a mixed financing in CFA francs and euros. The project is developed in two phases; the first phase, supported by this financing, covers 30 MW of solar capacity and 8 MWh of storage. The initial project capacity, launched several years ago, was 120 MW across two phases. Delays and financing rearrangements led developers to refocus the first phase around 30 MW, with a possibility of future extension. 11 MW are reportedly already in service since November 2024.
Quotes: "apporté sous la forme d’un financement mixte en francs CFA et en euros", "La première phase, soutenue par ce financement, porte sur 30 MW de capacité solaire et 8 MWh de stockage (BESS).", "La capacité initiale du projet, lancé il y a plusieurs années, était de 120 MW répartis sur deux phases. Les retards et réaménagements du financement ont amené les promoteurs à recentrer la première phase autour de 30 MW, avec une possibilité d’extension future.", "11 MW seraient déjà en service depuis novembre 2024 selon les informations de nos confrères et consœurs locaux de l’Union."
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Deal Size
financé à hauteur de 28 millions d’euros
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Capacity
une centrale solaire photovoltaïque (PV) de 60 MW, co-implantée avec 30 MWh de stockage par batterie (BESS)
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Location
la centrale photovoltaïque d’Ayémé [...] Le projet de la Plaine d’Ayamé est situé à une trentaine de kilomètres de Libreville
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PPA Details
bénéficie d’un contrat d’achat d’électricité de 25 ans avec l’État gabonnais, via la société ….
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Financials
Le financement de 28 millions d’euros annoncé cette semaine [...] le prêt vise à financer la phase 1
PARTIES MENTIONED IN SOURCE
D
De Gaulle Fleurance
advisor
"Structuré par le cabinet De Gaulle Fleurance"
A
Afrigreen Debt Impact
lender
"apporté par le fonds Afrigreen Debt Impact"
B
BGFI
lender
"la banque BGFI"
S
Solen SA
developer
"Développé par Solen SA"
l
l’État gabonnais
buyer
"avec l’État gabonnais, via la société …."
high quality
Enriched Mar 6, 2026
Global Infrastructure Sherpa