The recent Solar Energy Corporation of India (SECI) auction for 1,000 MW solar energy combined with 4,000 MWh battery energy storage has set a new benchmark with a blended tariff of ₹3.53 per kWh. This achievement underscores the affordability and viability of solar-plus-storage solutions as a mainstream power source. Key Highlights: Tariff Structure: The tariff accounts for a mix of 40% daytime solar power at ₹2.5 per kWh and 60% nighttime battery-stored power at ₹5 per kWh, averaging out to ₹3.5 per kWh. This is significantly cheaper than coal power, which costs ₹4.5 per kWh. Cost Competitiveness: By combining the low cost of solar power with the reliability of battery storage, the blended price positions solar-plus-storage as a strong alternative to fossil fuels. Benefits to India’s Energy Sector: Climate Action: Solar-plus-storage addresses the intermittency of renewable energy, ensuring a stable and reliable power supply while reducing greenhouse gas emissions. Economic Edge: The declining costs of solar and battery technologies make renewable energy affordable, boosting investments and job creation. Energy Security: These systems provide grid stability and round-the-clock clean energy, reducing dependence on conventional power plants. A Game-Changer for Clean Energy The SECI auction highlights the potential of solar-plus-storage systems to transform India’s energy landscape. These systems now rival conventional power plants in reliability, while offering a cleaner and more sustainable solution. The consistent drop in costs promises an even brighter future for renewables. This milestone reflects India’s commitment to renewable energy targets and climate goals. With further auctions and advancements, solar-plus-storage solutions are set to drive India’s transition to a sustainable and resilient energy future, delivering affordable power for all.
This could be a game changer if round the clock power is available at Rs 3.5 / kWh with BESS for industries with power requirement upto 10 MW. It will make investment attractive in solar plants which will bring down industry operation costs significantly.
Sir, you have indicated that competitive tariff is being received on account of "....The tariff accounts for a mix of 40% daytime solar power at ₹2.5 per kWh and 60% nighttime battery-stored power at ₹5 per kWh, averaging out to ₹3.5 per kWh....." can you please elaborate.....
Interesting. PV with storage is so cheaper than coal or even gas based plant. 100% transition to RE is achievable that too within shorter time as installation of PV + storages takes lesser time than any thermal power plant for the same capacity.
So wind is not considered?
Great news Sir! This will significantly curtail the usage of fossil fuels. Thanks for sharing. Regards, Sunil Rai
Very informative
CEO @ First Green Consulting | Sustainable Energy, Alternative Energy
3moIf you consider hundred units of total electricity generation of which 60 units are sold at five rupees per unit and 40 units are sold at ₹2.5 per unit. This will average out around four ₹ per unit. However, if the night tariff is less than five rupees, you can reachclose to ₹3.5.