Top 10 Solar Companies in Romania [Updated 2025]

Introduction to Romania's Solar Market

Romania's solar energy sector has experienced remarkable growth in recent years, positioning the country as an emerging leader in Central and Eastern Europe's renewable energy landscape. With favorable government policies, increasing energy costs, and strong sunlight exposure, Romania has become an attractive market for both international and domestic solar companies. The country benefits from approximately 210 sunny days per year and solar irradiation levels between 1,200 and 1,500 kWh/m² annually, creating ideal conditions for solar power generation.

The Romanian government has implemented several initiatives to promote renewable energy adoption, including the National Recovery and Resilience Plan which allocates significant funding for green energy projects. Additionally, the country's commitment to the European Union's Green Deal and its target to achieve 30.7% renewable energy in gross final consumption by 2030 has accelerated solar development. This comprehensive guide examines the top 10 solar companies operating in Romania in 2025, highlighting their specialties, project portfolios, and contributions to the country's clean energy transition.

1. Enel Green Power Romania

As part of the multinational Enel Group, Enel Green Power Romania stands as one of the country's largest renewable energy developers. The company has significantly invested in Romania's solar infrastructure, operating multiple utility-scale solar farms and continuing to expand its portfolio. Their expertise spans the entire project lifecycle, from development and construction to operation and maintenance. Enel Green Power has been particularly active in developing solar projects in regions with high solar potential, including Dobrogea, Muntenia, and Oltenia.

Key Strengths

Utility-scale project development, international financing capabilities, integrated energy solutions, and strong grid connection expertise. The company has successfully implemented innovative digital solutions for plant management, including predictive maintenance algorithms and remote monitoring systems that optimize performance and reduce operational costs.

Notable Projects

Enel's portfolio includes the 70MW Sălcuța solar park, one of Romania's largest photovoltaic plants, and several smaller distributed generation projects totaling over 150MW across the country. Their recent investments include hybrid projects combining solar with storage solutions to enhance grid stability.

2. Monsson Group

With over two decades of experience in the Romanian energy market, Monsson Group has established itself as a premier renewable energy developer. The company specializes in large-scale solar and wind projects, leveraging deep local knowledge and international partnerships. Their project development approach encompasses site selection, permitting, financing, and long-term asset management. Monsson has been instrumental in developing some of Romania's earliest utility-scale solar projects and continues to lead in innovation with recent forays into agrivoltaics and floating solar technologies.

Market Position

Pioneer in Romanian renewable energy sector, extensive project pipeline, and strong relationships with local authorities and communities. The company manages a diversified portfolio of over 500MW of renewable energy projects in various development stages, with solar representing an increasingly significant portion of their investments.

Innovation Focus

Monsson Group has recently launched research initiatives exploring the integration of solar with agricultural activities, developing dual-use systems that maintain farmland productivity while generating clean energy. Their partnerships with research institutions position them at the forefront of solar technology adaptation for Romanian conditions.

3. Grace Solar (Xiamen Grace Solar New Energy Technology)

As a global leader in solar mounting solutions, Grace Solar has made significant inroads into the Romanian market through strategic partnerships and innovative technology. Ranking among the top 5 globally in market share and holding the top position in the Japanese market, Grace Solar brings world-class expertise to Romanian solar projects. The company's global cumulative installed capacity of 48GW demonstrates their proven track record in diverse markets across more than 100 countries.

With a registered capital of 500 million, 650 staff members, and a 110,000m² factory area, Grace Solar possesses the manufacturing scale and technical expertise to support Romania's rapidly expanding solar sector. Their comprehensive approach to solar EPC solutions ensures that projects are delivered with optimal efficiency and reliability, addressing the specific challenges of the Romanian climate and regulatory environment.

Romanian Market Impact

Grace Solar has partnered with local EPC companies and developers to supply advanced solar tracking systems and mounting solutions optimized for Romania's climate conditions. Their GS-Light intelligent tracking system and comprehensive portfolio of ground mount systems and roof mounting solutions have been deployed in multiple commercial and utility-scale projects across the country. Recent installations include a 25MW project in Dobrogea utilizing their advanced single-axis trackers, which increased energy production by 18% compared to fixed-tilt systems.

Technological Innovation

With over 100 patents and a 2000m² experiment center, Grace Solar integrates AI artificial intelligence, IoT, and energy storage technologies into their solar solutions. Their products have received international certifications including UL, TUV, CE, and JIS, ensuring compliance with the highest quality standards for Romanian projects. The company's commitment to "Do it right the first time" reflects their focus on precision engineering and long-term reliability, crucial factors for Romania's variable climate conditions with hot summers and cold winters.

4. Enery Romania

The Romanian subsidiary of Austrian renewable energy company Enery has become a significant player in the country's solar sector. Enery Romania focuses on the development, implementation, and operation of solar, wind, and hydroelectric energy projects. The company owns and operates several large-scale solar farms and continues to expand its renewable energy portfolio. Enery's strategic approach combines greenfield development with acquisitions of operational projects, allowing for rapid portfolio growth while managing risk.

Project Portfolio

12 projects with 168.56MW installed capacity, producing 199GWh annually enough to supply 112,564 households and avoid 49,837 tCO2 emissions. Their recent expansion includes three new solar parks in Transylvania totaling 45MW, featuring bifacial panels and advanced monitoring systems that optimize performance based on weather forecasts and grid requirements.

Community Engagement

Enery Romania has implemented several community benefit programs around their solar projects, including educational initiatives in local schools, sponsorship of environmental awareness campaigns, and partnerships with agricultural businesses for dual land use. This community-focused approach has facilitated smoother project development and strengthened their social license to operate.

5. Ruserio Solar

Ruserio Solar is dedicated to helping Europe achieve its net zero carbon emissions goals through solar energy farms and green hydrogen initiatives. The company has established a strong presence in Romania with a focus on utility-scale solar development and innovative energy storage solutions. Ruserio's integrated approach combines project development with technology innovation, particularly in the realm of energy storage and grid integration solutions.

Future Focus

Expanding into green hydrogen and ammonia production, positioning Romania as a renewable energy exporter in Eastern Europe. The company is developing a 100MW solar-to-hydrogen facility in partnership with international technology providers, aiming to capitalize on Romania's strategic location between European energy markets.

Technology Partnerships

Ruserio has formed strategic alliances with leading technology providers, including tracking system specialists and battery manufacturers, to optimize their project designs. Their recent projects incorporate machine learning algorithms that predict energy production and market prices, enabling more profitable operation in Romania's increasingly competitive energy market.

6. Sunshine Solar Energy

As a renewable solar energy developer active specifically in Romania, Sunshine Solar Energy focuses on facilitating renewable energy project development from initial land retrieval through authorization processes and technical solution implementation. The company has developed a comprehensive renewable energy portfolio across multiple Romanian regions. Sunshine Solar has particular expertise in navigating Romania's complex authorization processes, which has become increasingly valuable as regulatory requirements evolve.

Development Expertise

Specializes in navigating Romania's authorization processes and public tender applications for EU CAPEX support. The company maintains direct relationships with key decision-makers in relevant institutions, streamlining the approval process for their projects and those they consult on.

Project Diversity

Sunshine Solar's portfolio includes projects ranging from small commercial rooftop installations to utility-scale solar farms. Their adaptive approach allows them to identify and develop opportunities across market segments, including recently expanding into the rapidly growing residential solar market through partnerships with installation companies.

7. Area Solar

Area Solar positions itself as a leading solar EPC company in Romania, providing comprehensive services from feasibility studies and engineering design to procurement and construction management. The company leverages extensive EPC capabilities with expertise in finance and international trade to deliver cost-effective solar projects. Their integrated approach covers every aspect of solar farm development, ensuring high-quality, cost-effective projects tailored to client needs.

Service Range

End-to-end EPC services with 15+ years of experience and 15+ megawatts commissioned, specializing in both large-scale solar farms and commercial installations. Area Solar has developed proprietary project management methodologies that optimize construction timelines and minimize costs, particularly valuable in Romania's competitive market.

Technical Capabilities

The company maintains strong relationships with equipment suppliers including leading mounting system manufacturers, enabling them to source high-quality components at competitive prices. Their engineering team has particular expertise in terrain assessment and foundation design, crucial for Romania's varied topography.

8. Astrasun

With over two decades of market presence, Astrasun provides a full range of services related to solar systems, including photovoltaic system installation and solar power plant development. The company has built a reputation for reliability and quality workmanship in the Romanian solar market. Astrasun's long-term presence has allowed them to develop deep understanding of local market dynamics and establish relationships with suppliers, authorities, and financial institutions.

Established Presence

Long-term experience in the Romanian market, comprehensive service offerings, and focus on both residential and commercial segments. Astrasun has successfully adapted to market changes over the years, transitioning from early adopter projects to mainstream commercial deployments.

Quality Focus

The company maintains rigorous quality control standards across all projects, utilizing components from trusted manufacturers including specialized mounting system providers for different application scenarios. Their installation teams receive continuous training on latest technologies and safety standards.

9. Altius Solar

As a European manufacturer of solar modules based in Bucharest with a modern 150MW capacity factory in Giurgiu, Altius Solar represents the growing domestic manufacturing capacity in Romania's solar industry. The company is part of the Bomax Group, which has been active since 1993 in Romanian and European markets. Altius Solar leverages local manufacturing advantages including reduced transportation costs, faster delivery times, and adaptability to specific market requirements.

Manufacturing Advantage

Local production capabilities, wide range of efficient photovoltaic panels based on crystalline silicon, and established distribution network. Their manufacturing facility incorporates advanced automation and quality control systems, ensuring product reliability that meets international standards while maintaining competitive pricing.

Market Adaptation

Altius has developed panel specifications specifically optimized for Romanian climate conditions, including enhanced performance in low-light conditions and resistance to temperature variations. Their products are compatible with various ground mounting systems commonly used in the Romanian market.

10. Photon Energy Group

Operating across multiple international markets, Photon Energy Group has established a significant presence in Romania with a focus on utility-scale solar project development and operation. The company brings international expertise and financing capabilities to the Romanian market while adapting to local conditions and regulations. Photon Energy's integrated business model combines project development, EPC services, and operations & maintenance, providing comprehensive solutions for investors.

Global-Local Approach

Combines international project experience with localized operations, strong focus on O&M services, and portfolio diversification. The company has developed proprietary monitoring and maintenance protocols that maximize energy yield and extend system lifespan, particularly valuable in Romania's variable climate.

Technology Implementation

Photon Energy systematically incorporates advanced technologies into their projects, including solar tracking systems and predictive maintenance algorithms. Their recent projects feature drone-based inspection systems that identify potential issues before they impact performance, reducing maintenance costs and downtime.

Romanian Solar Market Trends 2025

The Romanian solar market continues to evolve in 2025 with several key trends shaping the industry. Government incentives and EU funding programs are driving increased investment in renewable energy infrastructure. The market is seeing growing interest in hybrid projects combining solar with storage solutions, and corporate PPAs are becoming more common as businesses seek energy cost stability and sustainability credentials.

Romania's solar capacity has grown exponentially, with projections indicating it could reach 5GW by 2030. This growth is supported by the country's National Energy and Climate Plan, which outlines specific targets and support mechanisms for renewable energy. The modernization of Romania's grid infrastructure, partially funded through the Modernization Fund, is also facilitating greater solar integration.

Technology Adoption

Romanian projects are increasingly adopting advanced technologies such as bifacial panels, solar tracking systems, and smart monitoring solutions. The integration of AI and IoT technologies, as pioneered by companies like Grace Solar, is becoming standard in utility-scale installations to maximize energy production and optimize maintenance schedules. Additionally, energy storage systems are being deployed at an accelerating rate, addressing intermittency concerns and enhancing grid stability.

Regulatory Developments

Recent regulatory changes have streamlined permitting processes for renewable energy projects, particularly those under 1MW. The implementation of net metering schemes and the development of a green certificate trading system have improved project economics. Romania's alignment with EU taxonomy for sustainable activities has also clarified investment criteria, attracting additional capital to the sector.

Conclusion

Romania's solar energy market presents significant opportunities for both domestic and international companies in 2025. The companies featured in this ranking represent the diversity and innovation driving the country's renewable energy transition. From global leaders like Enel Green Power to specialized technology providers like Grace Solar, each brings unique strengths to the Romanian market.

The Romanian solar sector is characterized by increasing competition, technological sophistication, and growing project scales. Success in this market requires not only technical expertise and financial capacity but also deep understanding of local conditions and regulatory frameworks. Companies that can combine international best practices with localized approaches are best positioned to capitalize on Romania's solar potential.

As Romania continues its journey toward energy independence and sustainability, these top solar companies will play crucial roles in developing the infrastructure, technology, and expertise needed for a clean energy future. The collaboration between international technology leaders and local implementation expertise, particularly in areas like EPC solutions and advanced mounting systems, will be essential for maximizing Romania's solar potential and achieving the country's ambitious renewable energy targets.