We have put together a list of 15 great renewable energy projects in which you can invest, starting from a few hundred euros.
Invest in the Future of Clean Energy: TSE Douzy Solar Park Crowdfunding Opportunity
The Centrale solaire TSE Douzy is a large photovoltaic solar park planned in the commune of Douzy in the Ardennes region of France. Developed by the French renewable energy company TSE, it aims to produce clean electricity and contribute to the country’s energy transition. The plant will have an installed capacity of about 51.9 MWc, enough to power several thousand households annually.
The project is partly financed through a crowdfunding campaign on Lendopolis , offering retail investors a 7 % annual return over a five-year term. This allows citizens to support and benefit from the development of local renewable energy infrastructure.
Environmental assessments have been carried out, addressing potential impacts on biodiversity, land use, and landscape integration. Mitigation measures such as habitat preservation and visual buffers are planned to minimize ecological disturbance.
Main risks include regulatory approvals, construction or grid-connection delays, and the usual technical and operational risks associated with large solar installations. Overall, the Douzy solar project offers investors a chance to earn fixed returns while directly supporting the expansion of solar energy in northern France.
Learn more about the project here.
Sky-High Returns: Invest in EnerKíte’s Altitude Wind Power Revolution
EnerKíte is raising €1.5 million via its own crowdfunding campaign on its investment platform (in partnership with Conda Capital) to bring its advanced airborne wind energy technology to pilot-scale. Investors can join from €100 and earn a fixed base interest of 3 % p.a., with Early Bird investors getting about 4 %, targeting a total average annual return of ≈ 38.21 % over a term of approximately eight years, ending 30 June 2033.
The project’s core innovation is the EK100-10P “flight wind” system, which uses kite-like wings tethered to ground stations to harvest strong, steady winds at altitudes of 200–300 meters. This setup promises up to 6,000 full-load hours per year, uses about 90 % less material versus traditional wind turbines, and demands minimal land and infrastructure footprint.
EnerKíte aims to deploy multiple display/pilot projects with industry and SMEs, finish prototyping wings and tether systems, and begin full commercialization. By investing, you’re supporting renewable energy scale-up, COβ emission reduction, and energy independence in Germany and beyond.
While the opportunity is high potential, risks include technical execution, regulatory permitting, and scaling challenges—as with any deep-tech venture. But for investors seeking green tech, fixed income blended with equity-style upside, this is a chance to be part of the energy transition from the ground up.
Learn more about the project here.
Earn 8.5 % – Powering Ceuta’s Green Digital Leap with Solar Self-Consumption
The DataSun Ceuta T2 project is a solar investment offer on the Enerfip crowdfunding platform. Avangreen, via its SPV Optimal Capital Management, is raising €1,521,250 in senior debt bonds as part of a larger €3,500,000 fundraise to refinance a rooftop self-consumption photovoltaic plant (already built, 2.8 MW) in the port of Ceuta, Spain. Investors can participate from as little as €10, and the investment offers a fixed gross interest rate of 8.5 % per year over 2.8 years.
The solar installation will produce about 5,250 MWh/year (20-year average) from 12,000 m² of rooftop panels, under a public concession spanning 30 years. Its electricity output will be consumed locally: powering Ceuta’s digital infrastructure (including a future data center), fast-charging stations for public electric vehicles, and public companies. The project is declared strategic by local authorities and has strong institutional support.
To secure investor capital, multiple guarantees are in place: a pledge of 92.5 % of issuer’s share capital, mortgage over the concession or parent-company guarantee, escrow of project accounts, plus receivables pledges. Repayment of capital is “in fine” (all at maturity), with annual interest payments.
Risk factors include counterparty risk (pending signing of some PPAs, especially with the City of Ceuta), refinancing risk tied to the completion of the data center, and operational/market risk. Mitigations include escrow account for initial interest, institutional backing, and structured financing. For investors seeking high yield in renewables, this offers a compelling opportunity: strong fixed return, involvement in clean energy transition, local impact, and exposure to self-consumption solar in a Europe-jurisdiction project. More about the project here.
9 % Solar Yield: Grow with SunLib’s Subscription-Energy Boom
SunLib is raising between €400,000 and €1,000,000 via obligations (corporate bonds) on the Lita.co impact-crowdfunding platform. The offering delivers a fixed annual interest rate of 9 % over 3 years, and comes with a guarantee (asset pledge or external guarantor) to protect investors in case of issuer default.
SunLib is a fast-growing French clean-energy startup operating on a subscription solar model for both residential and professional customers. With over 200 installer partners, 314 signed contracts, and €3.1 million in equity already raised, the company is scaling proven operations and expanding market presence.
By investing, you’re helping accelerate France’s energy transition and decarbonization, aligning with European taxonomy objectives, while capturing strong financial returns. This opportunity is eligible for PEA-PME tax-advantaged investing, with a minimum ticket size of €300.
Note: as with all early-stage ventures, there are risks including company execution, market competition, regulatory environment, and potential loss of capital; investors should weigh these alongside the high yield on offer.
Learn more about the project here.
A portfolio of solar projects of 163 MWp
Created in 2008 on the initiative of Daniel Bour, the GENERALE DU SOLAIRE group is an independent French producer of renewable electricity, present in France and internationally.This campaign aims to contribute to the growth of the Générale du Solaire group by supporting its ambitious development plan and to finance part of the development costs of a portfolio of around twenty photovoltaic projects in mainland France. Representing around 163 MWp of solar projects, this plan aims to contribute significantly to the energy transition.The project is provided by Lendosphere and will ensure a 7.00 % annual rate of return. learn more about the project here.
9 % Green Hydrogen Yield: Eternal Power’s Investor Ticket into the Dummerstorf Breakthrough
Eternal Power is offering a crowdinvestment on the Wiwin platform under the product name “Eternal Power Wasserstoff Invest”, raising up to €2,000,000 via digital securities (token-based bonds) with a minimum investment of €250. Investors receive a fixed interest rate of 9.00 % per annum, plus a bonus if key milestones are met, targeting a maximum expected yield of about 10.84 % p.a.. The investment runs until 31 December 2028.
The project’s core is building one of Europe’s largest green hydrogen production facilities in Dummerstorf, Mecklenburg-Vorpommern, with Phase I aiming for 80 MW electrolysis capacity (Phase II expansion to 380 MW). Annual production is expected to begin from 2029, producing thousands of tons of green hydrogen to serve heavy industry, logistics, fertilizer and chemical producers. Its strategic location near offshore wind parks and solar resources ensures low electricity costs; a proprietary software system will optimize power sourcing hourly over 20 years.
By investing, you contribute directly to industrial decarbonization, supply chain transformation, and accelerating the EU’s hydrogen economy. The project aligns with UN Sustainable Development Goals (SDG 7, 9 & 13) and supports Germany’s green energy infrastructure growth. As with all high-impact, infrastructure scale ventures, key risks include execution delays, permitting & regulatory approvals, technology scale-up, and market demand stability.
Learn more about the project here.
8 % Solar Yield – Clean Energy ROI in Vietnam’s Packaging Sector
Dong Nam Viet VI is a solar refinancing investment opportunity hosted on the Ecoligo platform. The campaign is seeking to raise €97,000, and as of now about €12,450 has been invested. Investors are offered an 8 % annual interest rate with a maturity date of 31 July 2031, over a five-to-six-year term.
The project consists of refinancing a 138 kWp portion of an already installed 986 kWp photovoltaic system at the Dong Nam Viet Packaging factory in Ben Cat, Binh Duong province, Vietnam. The system saves around 212 tonnes of COβ per year, contributing to energy transition and sustainable manufacturing. Excess electricity is fed into the national grid, improving local electricity supply and lowering environmental footprint.
Minimum participation is €100, maximum €10,000, and repayment is structured as approximately 32 % annually with the remaining 68 % at maturity. By investing, you support solar energy expansion in a high-sunlight tropical zone, back corporate sustainability in the packaging industry, and gain fixed-return income in impact investing.
Learn more about the project here.
Own a Slice of Impact: Bettervest Genussrechte 5 – Join the Green Growth Movement
Bettervest Genussrechte 5 is a fundraising opportunity on the Bettervest impact-crowdfunding platform in Germany, offering investors the chance to share in the company’s success through Genussrechte (profit participation rights). The funds raised will be used as growth capital to scale Bettervest’s platform, expand into new markets, and support more carbon-reducing energy projects globally. While the exact return rate isn’t publicly disclosed on the info page, investors receive profit participation rights, meaning you benefit financially as Bettervest becomes more profitable.
The platform Bettervest, founded in 2012, has so far mobilized over €25.5 million in financing and helped reduce more than 2 million tonnes of COβ through dozens of sustainable energy and climate projects. This investment is aimed at accelerating that track record, boosting impact by financing more renewable energy, energy-efficiency, and social benefit ventures. As a Genussrechts-holder you become a sort of virtual shareholder: you don’t just earn returns—you support climate action, health improvements, and income growth in underserved regions.
Minimum investment amounts typically start around €250 on Bettervest (though terms may vary per offering). As with all Genussrechte and profit-sharing securities, risks include possibly lower profits than projected, delays or underperformance, and in worst case loss of some or all invested capital. But for investors seeking high impact, environmental returns, and alignment with ESG goals, this is an opportunity to combine financial upside with real positive change.
Learn more about the project here.
8 % Fixed Yield – Charge Up Germany’s Grid with Dispatch Energy Storage
Dispatch Duitsland is a bond-investment opportunity on the ZonHub crowdfunding platform, allowing investors to support large-scale battery energy storage systems (BESS) across Germany. The offering is between €3,000,000 and €4,999,975, with investments starting from €250. Investors receive a fixed annual interest rate of 8 % for a 3-year term, and the full principal is repaid in one lump sum at maturity (senior obligatielening).
The funds will help Dispatch Germany finance critical development work for its battery storage pipeline — currently totaling 2.4 GW — including technical studies, permitting, securing grid connections, land rights, and long-lead equipment orders. These storage systems will play a key role in stabilizing electricity grids by balancing supply and demand, enabling more renewable energy on the grid, and avoiding curtailment.
Dispatch is a Netherlands-based company with proven experience in utility-scale battery storage, working with partners like Macquarie Capital and grid operator TenneT. By investing, you tap into the booming battery energy storage sector, benefit from predictable returns, and contribute to the energy transition in Europe. Risks include project execution delays, regulatory and permitting processes, and potential long lead times for equipment, but the senior status and clear security structure help mitigate exposure.
Learn more about the project here.
9 % for 24 Months – Charge into Italy’s Energy Future with BESS #11
BESS #11 is a battery energy storage investment offered on the Ener2crowd platform, raised by Solar Florentia S.r.l. (part of the Green Enesys / Viridi RE Group). The campaign is seeking between €100,000 (minimum) and €250,000 (maximum), with €202,401 already committed. Investors can participate with as little as €100.
The offering provides a fixed annual return of 9.00 % for most investors over a 24-month period, with a slightly higher rate of 9.25 % for residents of Campania, Italy. Interest and principal are repaid in a bullet amortization structure (i.e. full repayment at the end).
The project involves developing a 65 MW / 8-hour duration BESS in Sessa Aurunca (CE), Campania Region, to be connected to the national grid via Terna. The storage system comprises 5 battery “strings” of 2.5 MW / 24 MWh each, located close to an existing PV plant and a high-voltage station, helping to stabilize the grid, support renewable output, and smooth energy supply during peak demand or intermittent generation.
Funds raised will be used to refinance part of the connection fee already accepted by Terna, and to push forward with permitting (authorization) and development phases. Environmental benefits include enabling more renewables on the grid, reducing peaks, and contributing toward Italy’s energy transition and associated COβ reductions.
For investors focused on impact and fixed returns, this is a strong opportunity: you back a scalable, utility-scale battery storage asset, earn nearly double-digit yields, and help deliver critical infrastructure for clean energy integration.
Learn more about the project here.
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We wish you a good day and successful investing!
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