Despite its promising potential, agrivoltaics (APV) in India faces several interlinked challenges (technical, economic, agronomic, and institutional) that must be addressed for it to scale sustainably.
1. High capital costs
Because of their higher structures, higher material requirements, and more complicated installations, agrivoltaic systems are substantially more expensive than ground-mounted solar. Prices per kw can increase by 1.3-2 times. Costs are further increased by lower panel density, wind resistance specifications, and higher panel heights. For small and marginal farmers, this makes APV financially difficult unless financing options or subsidies are implemented.
2. Uncertain impact on crop yields
The way that crops react to solar panel shading varies greatly. While some crops, like leafy greens, benefit yields of staple crops like wheat and rice are frequently lower. Although Land Equivalent Ratio (LER) values can conceal decreases in food production, they may indicate overall gains. Yield results are highly dependent on the panel. Crop type, spacing, orientation, and local agroclimatic conditions, all of which call for site-specific data and trials prior to scaling.
3. Design and compatibility issues
Energy production and agricultural requirements must be balanced when designing agrivoltaic systems. For crop health, proper row spacing and enough room for farm equipment, particularly harvesters, are essential. Advanced technologies (like movable or transport panels) are still costly and uncommon in India, and many of the panels and mounting systems that are currently in use are not designed with agriculture in mind.
4. Operation, maintenance, and safety
Most farmers lack the technical know-how and routine maintenance needed for APV systems. Risks include exposed wiring or electrical infrastructure raising safety concerns and unintentional damage to solar equipment while farming. Reliance on outside technicians may result in higher operating expenses and downtime over time.
5. Soil and water impacts
Compaction and erosion of the soil may result from the installation of solar structures, particularly if heavy equipment is used or topsoil is removed. The microclimate is changed by shading, which may lower evapotranspiration but also has an impact on water requirements and rainfall distribution. More research is required to determine how different crops will react to these changes.
6. Grid integration and storage constraints
Although off-grid systems are less practical than grid-connected ones, many rural areas lack nearby substations or sufficient evacuation infrastructure. Without adequate planning, intermittent solar generation could put strain on the grid. In Indian APV setups, battery storage is still costly and unproven.
7. Regulatory and policy barriers
Clear national regulations pertaining to agrivoltaics are lacking. In some states, dual-use applications may be restricted by land use classifications and farmland protection laws. Solar installation approval procedures on agricultural land are intricate and dispersed among several agencies.
8. Farmer awareness and adoption
The potential advantages of APV are unknown to the majority of farmers. The perceived threats to crop yields and disturbances to farming practices are the reasons for skepticism. Adoption is likely to stay low in the absence of robust outreach, training, and demonstration initiatives, particularly through Farmer Producer Organizations (FPOs).