Suzlon Energy Ltd (Suzlon) produces wind turbine generators. The company is involved in the manufacturing, installation, and maintenance of wind turbines. Suzlon product and services portfolio includes wind turbine generators (WTGs) ranging from 225 kW to 3,000 kW, operations, and maintenance services (OMS) for wind and solar energy projects, and multi-brand O&M services for turbines from various manufacturers. The company also provides advanced digital solutions like SCADA for real-time monitoring and predictive maintenance, value-added services such as Quick Climb and Quick Sense for enhanced turbine performance, and turnkey project services for wind power project delivery. Suzlon's expertise extends to solar-wind hybrid energy solutions, offering end-to-end services from land acquisition to lifecycle asset management. The company supports a diverse customer base, including wind farm owners and organizations with multi-make wind turbines.

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Suzlon focuses on research and development (R&D) in the renewable energy sector, particularly in wind energy. The company invests significantly in R&D to innovate and reduce the levelized cost of energy (LCoE). Suzlon's R&D efforts include developing next-generation turbines, improving plant load factor (PLF), integrating solar-wind hybrid systems, and enhancing SCADA and forecasting systems. The company employs advanced materials like carbon fiber to improve turbine efficiency and durability. Suzlon has R&D units in Germany, the Netherlands, Denmark, and India. The unit in Germany focuses on development and integration, certification, design and product engineering, innovation, and strategic research. The Netherlands division focuses on blade design and integration. The R&D units in India focus on design and product engineering, turbine testing and measurement, technical field support engineering, wind resource development, blade testing, mechanical drive design, and product engineering. The Denmark R&D unit focuses on SCADA development. In FY2025, the company spent INR 1289 million on R&D, which as a percentage of revenue, stood at 1.27%.