Mumbai may be known for finance, films and corporate power, but the city is also becoming serious about solar energy. From housing societies in Andheri, Powai, Borivali and Thane to commercial buildings, factories, schools, hospitals and large business parks, more people are now looking at solar power to reduce electricity bills and support cleaner energy.
In 2026, solar is no longer just an “eco-friendly idea.” It has become a practical business decision. Rooftop solar helps homes and societies cut monthly bills, while large solar projects help companies meet sustainability goals. Mumbai also has a big advantage because many top solar developers, EPC companies, module manufacturers and renewable-energy firms have their offices in the city.
Based on Mumbai presence, reputation, solar business strength, service range and 2026 relevance, here are the top 5 solar companies in Mumbai.
1. Tata Power Solar / Tata Power Renewable Energy
Address: Tata Power Solar Systems Ltd., C/o The Tata Power Company Ltd., Corporate Center B, 34 Sant Tukaram Road, Carnac Bunder, Mumbai – 400009, Maharashtra.
Tata Power Solar is one of the most trusted solar names in India. Its registered office is listed at Corporate Center B, Carnac Bunder, Mumbai. The company is connected with Tata Power’s wider renewable-energy business, which covers solar, wind, hybrid and clean-energy solutions.
Tata Power Solar works across solar modules, rooftop solar, utility-scale projects, solar EPC and solar power solutions for homes, businesses and industries. For Mumbai customers, the Tata name gives extra confidence because the group has a long history in power generation and electricity distribution.
In 2026, Tata Power Solar stands at the top because of its strong brand trust, technical experience and large renewable-energy portfolio. It is suitable for residential rooftop solar, commercial solar, institutional projects and large-scale clean-energy planning.
2. Waaree Energies Ltd.
Address: 602, 6th Floor, Western Edge-I, Off Western Express Highway, Borivali East, Mumbai – 400066, Maharashtra.
Corporate Office: Commerz 2, 11th Floor, Oberoi Garden City, Goregaon, Mumbai – 400063, Maharashtra.
Waaree Energies is one of the biggest solar companies headquartered in Mumbai. Its official office page lists its corporate headquarters in Borivali and corporate office in Goregaon.
The company is especially known for solar PV module manufacturing, solar energy solutions and international solar business. In recent years, Waaree has grown strongly as India’s solar manufacturing industry has expanded. Its presence in Mumbai makes it important for corporate clients, dealers, distributors, EPC partners and investors.
In 2026, Waaree is a top solar company because it is connected with both solar manufacturing and solar project solutions. For businesses looking for Indian-made solar modules, panels and large-scale solar support, Waaree remains one of the strongest names in Mumbai.
3. Avaada Group
Address: 4th Floor 406 & 601, 6th Floor, Solaris One, Professor N. S. Phadke Road, Vijay Nagar, Andheri East, Mumbai – 400069, Maharashtra.
Avaada Group is a major renewable-energy company with a Mumbai office in Andheri East. Its official contact page lists the Mumbai office at Solaris One, Professor N. S. Phadke Road.
Avaada works in solar power, wind power, green hydrogen, energy storage and solar manufacturing. The company describes itself as a leading energy company with 7.1+ GWp across wind, solar, green hydrogen and advanced energy storage.
In 2026, Avaada is highly relevant because India is pushing strongly toward domestic solar manufacturing and green energy expansion. The group has also been in the news for its large solar manufacturing plans in Nagpur, including solar cell and module capacity.
For large businesses, investors and industrial customers, Avaada is one of the important Mumbai-linked solar and clean-energy companies to watch.
4. Sterling and Wilson Renewable Energy Ltd.
Address: Universal Majestic, 9th Floor, P. L. Lokhande Marg, Chembur West, Mumbai – 400043, Maharashtra.
Sterling and Wilson Renewable Energy is one of the most reputed solar EPC companies connected with Mumbai. Its registered office is listed at Universal Majestic, Chembur West, Mumbai.
The company is known for engineering, procurement and construction services in solar energy projects. It has worked on solar power projects in India and overseas, making it an important name for utility-scale solar and large commercial solar development.
In 2026, Sterling and Wilson Renewable Energy remains important because solar projects need more than panels. They need design, engineering, land planning, equipment sourcing, grid connection, project management and long-term technical quality. This is where a strong EPC company becomes valuable.
For large solar farms, industrial projects and serious commercial solar planning, Sterling and Wilson Renewable Energy is one of Mumbai’s strongest solar names.
5. CleanMax
Address: 4th Floor, The International, 16 Maharshi Karve Road, New Marine Lines, Cross Road No. 1, Churchgate, Mumbai – 400020, Maharashtra.
CleanMax is a leading renewable-energy company headquartered in Mumbai. Its official contact page lists its head office at The International, New Marine Lines, Churchgate.
CleanMax focuses mainly on renewable-energy solutions for commercial and industrial customers. Its services include rooftop solar, open-access solar, power purchase agreements, hybrid renewable projects and sustainability solutions for companies. The company positions itself as a renewable-energy partner for businesses that want to reduce energy costs and meet net-zero goals.
In 2026, CleanMax is a strong choice for corporates, factories, warehouses, data centres, malls, schools and large institutions. It is especially useful for clients who do not simply want to buy panels, but want long-term clean power through structured solar and renewable-energy solutions.
Conclusion
Mumbai has become an important centre for solar companies because it connects customers, investors, corporate offices, EPC firms, manufacturers and large electricity users. Tata Power Solar is the most trusted full-scale solar brand. Waaree Energies is strong in solar module manufacturing and energy solutions. Avaada Group is important for large renewable projects and solar manufacturing. Sterling and Wilson Renewable Energy is a major solar EPC player. CleanMax is a strong choice for commercial and industrial solar solutions.
Together, these five companies show how Mumbai is moving from traditional power consumption toward cleaner and smarter solar energy in 2026.