Finance the development of 6 BESS storage projects in Occitanie
Dev’ENR Stockage is a portfolio of 6 BESS storage projects in Occitanie, with a total capacity of 100 MWh . Currently under development, they are at different stages of progress:
- 2 projects are in environmental studies
- 2 projects have a construction permit submitted
- 2 projects have obtained their construction permit
Dev’EnR, a French company specializing in the development of renewable electricity projects, based in Béziers, has expanded its activities to include battery storage solutions. Following the success of numerous fundraising campaigns with Total Energies Invest, including Dev’Enr Participatif and Mazeray , this new activity is being undertaken through a new fundraising effort. Dev’EnR aims to raise a total of €1,500,000 in several tranches . For this second tranche, the company is offering to raise €725,000 through simple bonds, with an annual interest rate of 8.5% over 36 months .
The offer
Finance the development of 6 BESS storage projects in Occitanie
The company Dev’EnR offers an investment opportunity in financing 6 BESS storage sites in Occitanie. By supporting this project, you will directly contribute to the energy transition : energy storage is indeed a key challenge in the development of renewable energies, which are by nature intermittent.
As a local player, Dev’EnR has an agency and/or regional branch within 2 hours of all its projects, in Béziers, Toulouse, Bordeaux, Clermont-Ferrand and Dijon.
OBJECTIVE
The crowdfunding operation for the Dev’EnR project aims to raise €1,500,000 in several tranches. As part of this second tranche, the company aims to collect €725,000 in the form of simple bonds, with an annual interest rate of 8.5% over 36 months .
USE OF FUNDS
These funds will be used by the project leader to finance the development of the portfolio to bring the projects to the Ready-to-Build (RTB) stage.
REPAYMENT
The repayment of the bonds will be made through the resale of the projects once the ready-to-build stage is reached.
SECURITY
To secure the operation, investors benefit from a first-rank pledge on 100% of the shares of Dev’Stock, the entity owning all the rights to the financed storage projects .
LEGAL STRUCTURE & TOTAL ENERGIES INVEST’S INTERVENTION
Specifications
Investment phases
- Investment open to everyone
End of project financing
The closing date for contributions may be extended at the request of the project owner.
The return on your investment will be calculated from the date the subscription certificates are generated, i.e. once all the funds have been received and the legal documentation has been signed by the project owner.
Resources
Simulator
Investment simulation
Dev'Stock T2 -
Obligation
8.5%/year over 3 years
- PEA-PME
Simulation - Rate : 8.5% / year on 3 ans
Initial investment:
€5,000
Repayments and interest:
€6,275
In 3 transfers
| Date | Interest* | Capital | Amount |
| 15/07/2027 | €425 | €0 | €425 |
| 15/07/2028 | €425 | €0 | €425 |
| 15/07/2029 | €425 | €5,000 | €5,425 |
| Total | €1,275 | €5,000 | €6,275 |
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*Gross interest before tax, including all fees ( view taxation ) The result presented is not a forecast of the future performance of your investments. It is only intended to illustrate the mechanics of your investment over the investment period. The evolution of the value of your investment may vary from what is shown, either increasing or decreasing. |
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The project
Accompany the energy transition in the Occitanie region
In the Aude, Gard and Hérault departments , Dev’EnR, a company itself based in the heart of Occitanie, is currently developing 6 battery storage projects . All projects have secured land, a key step in the development of renewable energy projects, and two of them have already obtained their construction permits.
With a total capacity of 50.3 MW, the projects will ultimately have a storage capacity of 100.6 MWh.
By mid-2028, the 6 projects are expected to reach the Ready-to-Build (RTB) stage , allowing Dev’EnR to sell them. With a sale price in line with market standards (€80k/MW), the group anticipates a project portfolio valuation of €4 million.
Example of a project
In the Hérault department, Dev’EnR has applied for a construction permit for a 3.4 MW battery stationary energy storage facility with a 6.8 MWh storage capacity . Thanks to financing from Total Energies Invest, it hopes to reach the Ready-to-Build (RTB) stage by mid-2027.
With this project, the company will directly participate in RTE’s (Réseau de Transport d’Électricité) System Services (primary and secondary reserves), thus ensuring the balance and stability of the national and European electricity grid.
Below is a simulation of the project as it is expected to be implemented:
BESS storage, a booming market
The French electricity grid is currently undergoing a major transformation , with the increasing share of intermittent renewable energies (solar, wind) and the reduction of conventional controllable means (especially thermal). The grid must permanently maintain the balance between supply and demand and the frequency at 50 Hz, in a more volatile context. Battery storage (BESS) is particularly well-suited to this need, providing immediate (a few milliseconds) and bidirectional (charge/discharge) flexibility.
In France, the pace of BESS development is significantly lower than that of its European neighbors: only 1.8 GWh of storage capacity is expected by 2027, less than in Ireland. However, RTE has indicated a strong willingness to invest heavily in this type of solution.
The shift to a 15-minute interval, the rise of renewable energies and the growing need for flexibility make battery storage structurally essential , provided there is rigorous development, advanced management and an appropriate strategic positioning.
💡 Did you know?
Since October 1, 2025, the electricity “spot” market has moved from hourly to 15-minute intervals: this means that the price of electricity is now set for every quarter-hour rather than every hour. This change has significant impacts on price volatility, with much more granular variations.
**This shift to 15-minute intervals is particularly favorable to BESS-based strategies, as batteries offer high reactivity and can respond more precisely to price variations than other energy storage systems. It is estimated that revenues from electricity trading on the day-ahead spot market for a BESS asset could increase by 10% to 25%.
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Project owners
Dev’EnR, a human and local approach
Founded in 2019 in Béziers, Dev’EnR is an independent producer of renewable energy, working on the development of ground-mounted solar plants, rooftop installations, and parking lot canopies.
Committed to the development of renewable energies, Dev’EnR co-builds its plants with local stakeholders to provide sustainable energy solutions tailored to the needs of territories. With a strong regional presence, Dev’EnR actively contributes to the energy transition by implementing environmentally respectful projects and creating positive synergies with local actors.
The company, which currently employs around forty staff members, operates 20 photovoltaic plants and plans to have an installed capacity of over 100 MWp by the end of 2028. To date, the developed projects represent nearly 0.5 GWp in Occitanie, as well as in the Nouvelle-Aquitaine, Auvergne-Rhône-Alpes, and Bourgogne-Franche-Comté regions.
Beyond the numbers, it is the company’s approach that sets it apart:
- Projects are designed with elected officials, citizens, and farmers, taking their specific challenges into account.
- The company combines local governance, crowdfunding, and active consultation.
- It pays particular attention to the landscape integration of each project.
A few years ago, a wave of consolidation among historical renewable energy players significantly reduced the number of agile and human-scale companies in this sector. Yet it is human relationships, proximity, the environment, and commitment to a cleaner, more territory-focused world that define the DNA of renewable energies—and this is the path Dev’EnR follows.
Our analysis
Risk overview
Development risk
Risk relating to authorizations issued to the company and land, and third-party appeals against authorizations issued.
Mitigation methods
With proven expertise in the implementation of solar power projects, and having recently brought three battery storage projects to the construction-ready stage, the Dev’EnR Group possesses the development capabilities needed to mitigate connection and permitting risks.
Refinancing risk
Credit risk related to the company's ability to refinance and meet its debt obligations.
Mitigation methods
Four of the six projects in the portfolio are in advanced stages of development and therefore pose lower risks regarding their potential resale within the projected timeframe. In addition, outside of this portfolio, Dev’EnR has more than 50 MW of battery storage projects in advanced negotiations, which could replace a failing project if necessary.
Operating risks
Risk related to an activity that depends on a limited number of key persons responsible for carrying out the planned strategy. The risk is that one of these key persons leaves the project.
Mitigation methods
The Dev’EnR Group has forged strong ties with reputable regional financial institutions (Crédit Agricole, OCCTE) to receive support for its operations and growth.
Investing in this participatory financing project involves risks, including the risk of total or partial loss of the capital invested. Your investment is not covered by the deposit guarantee schemes established in accordance with directive 2014/49/EU of the European Parliament and of the Council . Your investment is also not covered by the investor compensation schemes established in accordance with Directive 97/9/EC of the European Parliament and of the Council . Return on investment is not guaranteed. This is not a savings product, and we recommend that you not to invest more than 10% of your net assets in participatory finance projects. You may not be able to sell the investment instruments when you wish. If you are able to sell them, however, you may incur losses.
