Larsen & Toubro Limited (L&T), through its Renewables business vertical, has secured a significant EPC order for the development of a grid-connected 116 MWac Solar Photovoltaic (PV) power plant, integrated with a 241 MWh Battery Energy Storage System (BESS). This ambitious project will be located at Kajra, in the Lakhisarai district of Bihar, and marks a major step in India’s transition toward sustainable and dispatchable renewable energy.

This recent development builds upon an earlier phase of work at the same site, now bringing the total co-located renewable energy storage capacity at Lakhisarai to 495 MWh, making it the largest such project ever awarded by a state utility in India.

Significance of the Project

The inclusion of a 4-hour BESS solution alongside the solar plant will allow for energy time-shifting, enabling the storage of surplus solar energy generated during off-peak hours and dispatching it during periods of high demand. This integration enhances grid stability, improves utilization of clean energy, and supports the broader energy ecosystem.

The advanced BESS technology to be deployed at the site will feature liquid cooling mechanisms, offering:

• Higher energy density

• Enhanced operational safety

• Extended system lifespan

This storage solution ensures continuous clean energy availability, addressing intermittency issues common with standalone solar power projects.

Alignment with National Goals

This project supports multiple national and state-level initiatives:

• Government of India’s renewable energy and co-location policy frameworks, promoting energy storage with solar and wind generation.

• Jal-Jeevan-Hariyali Abhiyan in Bihar, which aims at promoting sustainable water use, tree planting, and environmental conservation.

• Employment generation and capacity-building initiatives within Bihar’s local economy.

By enabling dispatchable clean power, this project also enhances the energy security of the state and reduces dependency on fossil fuels.

Track Record and Previous Milestones

Earlier, L&T’s Renewables vertical had also secured an EPC order for a 275 MW Solar PV project in Gujarat, reinforcing the company’s expertise in building flexible, scalable, and cost-effective renewable infrastructure across India.

L&T’s growing order book in renewables reflects the shift in India’s infrastructure roadmap, prioritizing clean energy transition and sustainable development.

Project Classification and Financial Scope

As per L&T’s internal project classification system:

• This order falls under the “Significant” category, valued between ₹1,000 crore and ₹2,500 crore.

• Such classifications provide insight into the financial weight and strategic importance of awarded contracts.

About Larsen & Toubro

Larsen & Toubro (L&T) is a USD 30 billion Indian multinational conglomerate with a leading presence in EPC projects, hi-tech manufacturing, and technology-driven services across diverse sectors. With over 80 years of excellence, the company is known for its commitment to quality, innovation, and sustainability. Its consistent leadership across multiple industries stems from a strong customer-centric approach and technological depth.

L&T’s diversified portfolio includes:

• Infrastructure and energy projects

• Defence and aerospace systems

• Green mobility and smart technology solutions

• Digital engineering and IT services

L&T’s strategic focus on clean energy infrastructure has made it a major contributor to India’s green transition, especially with large-scale solar and hybrid energy deployments.

Strategic Implications for the Renewable Sector

This order represents a paradigm shift in the renewable energy sector in India:

• Co-located battery storage systems are now becoming mainstream as regulatory and economic frameworks evolve.

• State utilities, which were earlier reluctant, are now driving demand for dispatchable renewable power.

• Flexible EPC execution models, like those employed by L&T, are proving vital in meeting the complex engineering demands of hybrid solar-storage projects.

Bihar’s Lakhisarai project could serve as a benchmark for other states, demonstrating the feasibility and efficiency of BESS-integrated utility-scale solar plants.

Looking Ahead: India’s Energy Future

India has set an ambitious target of achieving 500 GW of non-fossil fuel capacity by 2030, with a major focus on energy storage, green hydrogen, and smart grids. Projects like this one from L&T will be cornerstones in achieving those goals.

Incorporating battery energy storage systems (BESS) ensures:

• Smooth integration of renewables

• Reduced reliance on backup fossil fuel plants

• Improved reliability and stability of power supply networks

Given the pace at which L&T is executing large-scale clean energy projects, the company is expected to play a key role in India’s climate commitments under the Paris Agreement and beyond.

Conclusion

The new order won by L&T’s Renewables business vertical to construct a 116 MW solar power plant integrated with 241 MWh BESS is a landmark development. Not only does it enhance L&T’s clean energy portfolio, but it also reaffirms its leadership in delivering high-impact, sustainable infrastructure projects.

With a growing demand for decarbonized and dispatchable power, India’s energy future will be defined by hybrid solutions like solar-plus-storage, and L&T is poised to lead that transformation.

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