Transforming India's Farms: The Promise of Agri-photovoltaics

Concept and Design: Agri-Photovoltaics (AgriPV) refers to the simultaneous use of agricultural land for both crop cultivation and solar power generation. Unlike conventional solar farms that occupy large tracts of land, AgriPV systems integrate solar panels with farming activities by mounting panels at suitable heights or arranging them between crop rows. Designs include elevated systems, row-based layouts, vertical panels, and greenhouse-integrated structures.

Resolving Land-Use Conflict: One of the major challenges in India’s energy transition is the competition between land for solar projects and agricultural use. AgriPV offers a dual-use solution, allowing farmers to grow crops while generating renewable energy. For example, shade-tolerant crops like turmeric or leafy vegetables can thrive under panels, while sun-loving crops can be grown between rows.

Broader Significance: This model supports India’s twin goals of energy security and food security. It enables farmers to diversify income through electricity generation while maintaining agricultural productivity. Thus, AgriPV represents an innovative approach to sustainable development by optimising scarce land resources.

Energy Transition Needs: India aims to achieve 300 GW of solar capacity by 2030 and net-zero emissions by 2070. This requires vast land resources, which creates tension with agricultural demands. AgriPV helps address this challenge by enabling co-location of energy and agriculture, reducing pressure on land acquisition.

Agricultural and Economic Benefits: The technology provides farmers with additional income streams through selling surplus electricity or leasing land. It also enhances resilience by protecting crops from extreme weather conditions such as heatwaves and heavy rainfall. For instance, partial shading can reduce evapotranspiration, improving water-use efficiency in drought-prone areas.

Strategic Importance: In a country where over half the population depends on agriculture, AgriPV aligns with goals of rural development, climate resilience, and sustainable livelihoods. It not only supports clean energy generation but also strengthens rural economies through value-added activities like cold storage and food processing.

Role of Crop Selection: The success of AgriPV systems depends significantly on choosing crops that can adapt to varying levels of sunlight. Shade-tolerant crops such as turmeric, ginger, leafy vegetables, and herbs like tulsi perform well under panels, while crops requiring more sunlight can be cultivated in open spaces between rows.

Design Considerations: Different system designs—such as elevated panels or vertical installations—affect light distribution, irrigation, and farming practices. For example, elevated systems allow tractors and farm equipment to operate below panels, while greenhouse-integrated systems enable controlled environments for high-value crops.

Regional Variations: India’s diverse agro-climatic zones require region-specific planning. Crops like ragi and jowar may be suitable in semi-arid regions, while vegetables like tomato and onion may thrive in others. Poor design or inappropriate crop selection can reduce yields, highlighting the need for scientific planning and local adaptation.

Economic Barriers: One of the primary challenges is the high capital cost of AgriPV systems, especially elevated structures and specialised mounting equipment. These costs are significantly higher than conventional solar installations, making it difficult for small and marginal farmers to adopt the technology without financial support.

Regulatory and Institutional Issues: अस्पष्ट regulations regarding land classification, grid connectivity, tariffs, and ownership models create uncertainty for investors and farmers. For instance, disputes may arise over revenue-sharing arrangements between developers and landowners, especially in long-term projects.

Technical and Social Constraints: Crop responses to shading are not uniform, and poorly designed systems may reduce agricultural productivity. Additionally, lack of standardised benchmarks and limited empirical data from pilot projects hinder large-scale adoption. Conclusion: While AgriPV holds immense potential, overcoming these barriers requires coordinated policy support, technological innovation, and stakeholder awareness.

Farmer-Centric Models: In one approach, farmers can own and operate AgriPV systems, using part of the electricity for irrigation and selling surplus power to the grid. This model enhances energy independence and reduces reliance on diesel pumps.

Collective and Cooperative Models: Farmer Producer Organisations (FPOs) can aggregate land and develop larger projects, improving access to finance and bargaining power. For example, groups of farmers in states like Maharashtra have explored cooperative solar projects under PM-KUSUM.

Private and Public Participation: Private developers may lease farmland and share revenues, while state agencies can develop projects for local energy needs. Around 50 pilot projects across India are currently testing different crop-panel combinations. These examples highlight the flexibility of AgriPV models, though scaling them requires robust financial and policy support.

Scenario Overview: If a state successfully integrates AgriPV under PM-KUSUM 2.0, it can create a synergistic model combining renewable energy generation with agricultural productivity. Farmers would install solar panels on their land while continuing cultivation, supported by subsidies and viability gap funding.

Expected Outcomes:

• Income Diversification: Farmers earn from electricity sales in addition to crop income.
• Energy Security: Reliable power supply for irrigation reduces dependence on grid or diesel.
• Climate Resilience: Crops benefit from partial shading and reduced water loss.

Financial Support: High initial costs necessitate viability gap funding, subsidies, and access to affordable credit. Inclusion of AgriPV under a proposed National Agri-Photovoltaics Mission with dedicated capacity targets can enhance project bankability.

Regulatory Clarity: Clear guidelines on land use, ownership models, tariffs, and grid connectivity are essential to reduce investor uncertainty. Streamlining approvals and integrating AgriPV into state-level policies can accelerate adoption.

Capacity Building and Research: Expanding pilot projects, generating region-specific data, and training farmers through extension services are crucial. For example, integrating AgriPV into agricultural advisory programmes can improve awareness and adoption. Conclusion: A combination of financial incentives, regulatory reforms, and institutional support is key to scaling AgriPV as a sustainable solution for India’s energy and agricultural challenges.