SECI Announces 500 MW Solar-Thermal Storage Tender to Boost Renewable Energy Capacity

New Delhi (Natural energy News): The Solar Energy Corporation of India (SECI) is gearing up to release a tender for a groundbreaking 500 megawatt (MW) solar-thermal storage project by the end of this financial year. This initiative marks a significant step in addressing the intermittency of renewable energy sources and enhancing the country’s energy storage capacity.

The Role of SECI

SECI, a government-run entity, has been at the forefront of promoting solar energy in India. With a series of successful projects under its belt, SECI continues to push the boundaries of renewable energy and storage solutions. Its efforts are crucial in meeting India’s ambitious renewable energy targets.

Focus on Solar-Thermal Storage

Solar-thermal storage uses concentrated solar power (CSP) technology, where mirrors focus sunlight to generate heat. This heat produces steam, driving turbines to generate electricity. Unlike conventional solar power, CSP can store energy for use during cloudy periods or at night, making it a more reliable energy source.

Details of the New Tender

The upcoming tender will call for a 500 MW solar-thermal storage project. This project aims to harness the power of concentrated solar technology, ensuring a round-the-clock energy solution. The tender is expected to be floated by the end of the financial year, setting the stage for significant advancements in India’s energy storage capabilities.

Government’s Energy Storage Goals

The Indian government has been increasingly focused on enhancing the country’s energy storage capacity to address the intermittency of renewable energy sources. By stabilizing the grid and optimizing renewable energy use, these initiatives are vital for the nation’s energy security and sustainability.

Chairman R P Gupta’s Vision

Chairman and Managing Director R P Gupta of SECI has expressed confidence in the project’s success. He highlighted the need for incentives during the initial stages but remained optimistic that the prices of storage services would align with other round-the-clock energy solutions. Gupta’s vision underscores the strategic importance of this project in India’s energy landscape.

Technology Behind Solar-Thermal Storage

Concentrated solar power (CSP) technology focuses sunlight using mirrors to generate heat, which then produces steam to run turbines. This method allows for energy storage, providing a consistent energy supply even when the sun isn’t shining. CSP offers a promising alternative to traditional battery storage systems, which can be more expensive and less efficient.

Economic Implications

The cost of solar-thermal storage is expected to be competitive with other storage solutions. By leveraging this technology, India can reduce its reliance on fossil fuels, decrease energy costs, and stimulate economic growth through job creation and technological innovation.

Challenges and Incentives

While the project promises many benefits, it also faces challenges such as high initial costs and technological hurdles. However, the government plans to offer incentives to encourage early adoption and overcome these obstacles. These incentives are crucial for the project’s initial phase and long-term success.

Grid Stability and Renewable Energy Integration

Energy storage plays a vital role in stabilizing the grid and integrating renewable energy sources. By storing excess energy and releasing it when needed, solar-thermal storage can help balance supply and demand, ensuring a reliable power supply and enhancing grid stability.

Comparative Analysis

Compared to battery energy storage systems (BESS), solar-thermal storage offers several advantages. CSP technology can store large amounts of energy more efficiently and at a lower cost. Additionally, the levelized cost of energy from pump storage projects (PSP) is lower than BESS, making CSP a more economically viable option.

Future Prospects

The long-term benefits of solar-thermal storage are immense. By investing in this technology, India can significantly boost its renewable energy capacity and reduce greenhouse gas emissions. SECI’s future plans include expanding CSP projects and exploring new technologies to further enhance energy storage solutions.

Expert Opinions

Industry experts believe that solar-thermal storage will play a crucial role in India’s energy future. They predict that continued advancements in technology and cost reductions will make CSP an increasingly attractive option for large-scale energy storage.


In summary, SECI’s upcoming tender for a 500 MW solar-thermal storage project represents a major milestone in India’s renewable energy journey. By addressing the intermittency of renewable sources and enhancing grid stability, this project promises to pave the way for a more sustainable and reliable energy future.


What is solar-thermal storage? Solar-thermal storage uses concentrated solar power (CSP) technology to store energy as heat, which is then converted to electricity. This method allows for continuous energy supply, even during non-sunny periods.

How does this project benefit India? The project enhances energy storage capacity, stabilizes the grid, and supports the integration of renewable energy sources. It also promotes economic growth through job creation and technological innovation.

What are the cost implications? While the initial costs may be high, the long-term economic benefits include reduced energy costs and decreased reliance on fossil fuels. Incentives from the government are expected to support early adoption.

How does this compare to other storage solutions? Solar-thermal storage is more efficient and cost-effective compared to battery energy storage systems (BESS). CSP technology offers a reliable and economical alternative for large-scale energy storage.

What are the future plans for SECI? SECI plans to expand its solar-thermal storage projects and explore new technologies to enhance energy storage solutions. The organization aims to continue driving innovation in India’s renewable energy sector.

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