MNRE Extends ₹2 Crore Solar Thermal Funding Opportunity to 28 October: Why Rajasthan Industries Should Act

9 October 2026 | REAR Industry and Policy Analysis. India's renewable-energy transition must address industrial process heat as well as electricity. MNRE has extended the deadline for concentrating solar thermal technology proposals for Indian industry to 28 October 2026. Potential financial assistance can reach 50% of eligible project cost, capped at ₹2 crore per project, subject to approval.

What Has MNRE Announced?

MNRE's original call under its Renewable Energy Research and Technology Development programme was issued 8 September 2026. An Office Memorandum dated 7 October 2026 extended the proposal submission deadline from 7 October to 28 October 2026, leaving other terms unchanged.

Why Industrial Heat Matters

Textiles, dairies, food processors, chemical factories and other industries need hot water, steam, drying, sterilisation and process heat in addition to electricity. Suitable renewable heat can displace fossil-fuel consumption, but must match the actual process temperature and load profile.

What Is Concentrating Solar Thermal?

Concentrating solar thermal technology uses optical systems to concentrate sunlight and supply useful heat through a working fluid. Depending on design it can supplement boilers, provide process preheating, or integrate with thermal storage and existing heating systems.

Which Technologies Are Considered?

The MNRE call lists indicative options including parabolic trough (approximately 60–400°C), Linear Fresnel (60–250°C), parabolic dish (100–500°C), solar power tower (150–600°C), PV-coupled heat pumps (around 90°C or higher) and configurations with thermal energy storage. Ranges are indicative, not universal performance guarantees, and the list is not exhaustive.

Which Industries Could Benefit?

Potential sectors include textiles, food processing, dairy, chemicals, pharmaceuticals, automotive, pulp and paper, hospitality and ceramics. Suitability depends on the specific process and temperature, not merely the industry category.

Why Rajasthan Is Relevant

Rajasthan's solar resource and industrial clusters offer opportunities to assess textile processing in Bhilwara, dairies, food-processing units, chemical facilities and selected hot-water or steam applications. These are potential opportunities, not claims of already approved projects.

How Much Funding Is Available?

The call provides potential assistance of up to 50% of eligible project cost, capped at ₹2 crore per project, subject to evaluation. Illustratively, 50% of a ₹1 crore eligible project is ₹50 lakh, 50% of ₹3 crore is ₹1.5 crore, while a ₹5 crore project reaches the ₹2 crore cap rather than ₹2.5 crore. Actual approved support may be lower or zero.

Who Can Apply?

The call addresses eligible industries, technology providers, startups, private institutions, entrepreneurs and relevant consortia, subject to its detailed terms. Not every rooftop EPC automatically qualifies merely because it works in solar.

What Makes a Strong Proposal?

Demonstrate technical feasibility, process integration, measured useful thermal energy, fossil-fuel displacement, realistic costs, scalability and replicability. A technology demonstration must be tied to a credible industrial process.

Why Thermal Storage Matters

Thermal energy storage can shift useful heat beyond peak sunlight hours. For illustration, delivering 500 kW of heat for four hours represents 2,000 kWh of useful thermal energy before considering losses and constraints. Actual storage sizing depends on temperature, usable capacity and efficiency.

Solar Thermal vs Solar PV

Solar PV generates electricity; solar thermal supplies heat. Heat pumps may be efficient for suitable lower-temperature applications. Technology selection must consider process temperature, hours, current fuel, DNI, available space, capital cost, maintenance and backup requirements.

Why DNI Matters

Concentrating solar technologies depend strongly on direct sunlight. Direct Normal Irradiance is a key input for assessing concentrating-solar performance. A site-specific resource study is necessary even in a sunny state.

Calculate Economics from Useful Heat

Evaluate actual useful heat delivered, not nominal collector capacity alone. For illustration, 120,000 useful thermal kWh annually at an assumed avoided fuel value of ₹5 per kWh would save ₹6 lakh gross annually. This is not an official tariff. Include pumping, heat losses, storage losses, O&M, backup fuel, financing and downtime.

Pilot Obligations

The call expects site assessment, design, installation, commissioning, process integration, training and monitoring, and specifies a minimum five-year O&M responsibility for pilot systems. These costs must be built into project economics.

What Should Rajasthan Industries Prepare?

Document current heating process, operating temperature, daily and seasonal thermal demand, current fuel cost, available area, proposed technology, integration plan, useful heat estimate, financing, beneficiary contribution, O&M and performance verification.

Application Deadline and Portal

The revised submission deadline is 28 October 2026. Applicants should read both the original 8 September call and the 7 October extension memorandum and use the official MNRE research proposal portal: https://research.mnre.gov.in/home . Verify submission requirements and obtain confirmation of successful submission.

REAR Recommendations

Industry associations can identify suitable industrial units and coordinate with technology providers. REAR recommends cluster-based pilots with independently understandable performance data on useful heat, displaced fuel, availability, storage, costs and replicability. Funding should support durable commercial solutions rather than installations that become inactive after the demonstration period.

Key Takeaways

MNRE extended the concentrating solar thermal industrial proposal deadline to 28 October 2026. Potential support is up to 50% of eligible project cost, capped at ₹2 crore per project and subject to approval. Projects should demonstrate industrial process integration and commercial viability; pilot O&M responsibility extends at least five years.

Frequently Asked Questions

What is the deadline?

28 October 2026.

Is ₹2 crore guaranteed?

No. It is a maximum cap, subject to eligibility, evaluation and approval.

Can startups apply?

Eligible startups and other entities may participate under the call's terms.

Is this for ordinary residential rooftop solar?

No. The call concerns industrial green-heat technology demonstrations.

Is thermal storage required?

Storage and hybrid solutions are encouraged; actual configurations depend on the proposal and programme conditions.

Where can proposals be submitted?

Through the official MNRE research portal.

Sources and Related REAR Reading

MNRE original Concentrating Solar Thermal Technology for Indian Industry call, 8 September 2026; MNRE extension Office Memorandum, 7 October 2026; MNRE research portal https://research.mnre.gov.in/home . Related REAR articles: https://www.rear.org.in/post/green-energy-corridor-phase-3-135-gw-50-gwh-bess-rajasthan ; https://www.rear.org.in/post/battery-energy-storage-rajasthan-bess-industry-safety-skills .