TNERC Approves Tariff for Two Solar Projects with 45 MWh Battery Storage in Tamil Nadu – EQ
In Short : The Tamil Nadu Electricity Regulatory Commission has adopted the tariff for two solar power projects integrated with battery energy storage systems. Each project will have 15 MW solar capacity along with 45 MWh battery storage to support grid stability and reliable power supply. The initiative highlights the growing importance of energy storage in enabling renewable integration.
In Detail : The Tamil Nadu Electricity Regulatory Commission has adopted the tariff for two solar power projects integrated with battery energy storage systems in Tamil Nadu. The approval represents an important step toward strengthening renewable energy infrastructure while improving grid reliability through energy storage integration.
Each project will have a solar generation capacity of 15 MW along with a battery energy storage system of 45 MWh. These hybrid projects are designed to generate clean electricity from solar power while storing excess energy in batteries for use during peak demand periods or when solar generation is low.
Battery energy storage systems play a crucial role in managing the intermittency of renewable energy sources such as solar power. By storing electricity generated during the daytime and releasing it when needed, the system helps maintain grid stability and ensures a more consistent and reliable power supply.
The projects highlight the growing shift toward solar-plus-storage solutions in India’s renewable energy sector. Integrating storage with solar plants allows utilities to optimize power generation, reduce curtailment of renewable energy, and improve the overall efficiency of the electricity network.
Tamil Nadu has been one of India’s leading states in renewable energy development, particularly in wind and solar power. The adoption of tariffs for solar projects combined with battery storage reflects the state’s commitment to modernizing its power infrastructure and supporting advanced clean energy technologies.
Energy storage systems also provide important grid services such as frequency regulation, load balancing, and peak demand management. These capabilities help utilities manage fluctuations in power supply and demand while reducing dependence on conventional backup power sources.
With increasing renewable capacity across the country, integrating battery storage is becoming a key component of India’s energy transition strategy. Solar-plus-storage projects allow electricity systems to operate more flexibly while supporting higher penetration of renewable energy.
The decision by the Tamil Nadu Electricity Regulatory Commission is expected to encourage further investments in hybrid renewable energy projects that combine generation with storage solutions. Such projects are increasingly being seen as essential for building resilient and future-ready power systems.
Overall, the approval of tariffs for these solar and battery storage projects represents a significant milestone in advancing clean energy infrastructure in Tamil Nadu. The initiative demonstrates how renewable energy and energy storage can work together to deliver reliable, sustainable, and efficient electricity for the state’s growing power demand.


