The Central Electricity Authority (CEA) has introduced the Technical Standards for Construction of Electrical Plants and Electric Lines Amendment Regulations, 2026. These new rules will come into effect from April 1, 2027, and aim to set clear technical benchmarks for building and operating renewable energy projects and battery energy storage systems (BESS) in India. The move is part of a broader effort to improve the safety, reliability, and efficiency of the country’s fast-growing green energy sector.
A major focus of the amendment is on Battery Energy Storage Systems. The CEA defines BESS as stationary electrochemical systems that store electricity using batteries along with supporting components such as power conversion systems and management units. Under the new standards, all BESS projects must support grid stability by providing active and reactive power control, voltage regulation, and frequency response. This means these systems will not only store energy but also actively help in balancing the grid.
For large-scale BESS projects with a capacity of 50 MW or more, additional requirements have been introduced. These systems must have “black start” capability, which allows them to help restart the grid in case of a complete shutdown. They must also use grid-forming inverter technology to maintain stable operations even when the grid is weak. The regulations also set strict performance benchmarks. A BESS project must be able to deliver at least 90 percent of its original output after five years, 80 percent after ten years, and 70 percent after fifteen years, ensuring long-term reliability.
The new rules also cover solar power projects in detail. Onshore solar plants must be designed to operate for a minimum of 25 years. Important components like solar modules are required to have bypass diodes to prevent damage and radio-frequency identification tags for better tracking and quality control. For floating solar projects, which are being increasingly deployed on water bodies, the CEA has added special requirements. These include the use of materials that can resist salt water and ultraviolet radiation, along with mandatory testing such as wind tunnel and buoyancy tests to ensure safety and durability.
Wind energy projects are also addressed under the updated regulations. Onshore wind turbines must be installed at least 500 meters away from residential areas to reduce noise impact. Offshore wind projects, which are more complex, must follow additional construction standards suitable for marine conditions. These include measures like scour protection to prevent erosion of the seabed around turbine foundations and the use of special cable entry systems such as J-tubes or I-tubes. Offshore substations are required to have helipads and aircraft warning lights to ensure accessibility and safety at sea.
Another important aspect of the regulations is the focus on data monitoring and communication. All renewable energy plants must have advanced control systems that can receive remote instructions from load dispatch centers. They are also required to store operational and fault data for at least 90 days, with high-resolution recording to support detailed analysis and quick response to issues.
Safety and environmental protection are given strong importance in the new framework. The rules mandate multiple layers of protection systems, fire safety measures, and compliance with the National Building Code. Through these comprehensive standards, the CEA aims to modernize India’s power infrastructure and support a smooth transition toward cleaner energy while maintaining high levels of operational safety and performance.
