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| Two Harvests from One Field: Combining Solar Power with Agriculture | | | Dr. Vijay Garg
Agriculture is the backbone of rural India, while solar energy is emerging as an important source of clean electricity. Traditionally, farming and solar power generation have competed for land. Solar installations occupy large areas that could otherwise be used for growing crops. However, an innovative approach called agrivoltaics offers an opportunity to combine both activities on the same land. It allows farmers to cultivate crops beneath or between elevated solar panels while generating electricity above them.
The concept raises an important question: can Indian farmers harvest food and solar energy from a single field without reducing agricultural productivity?
### What Is Agrivoltaics?
Agrivoltaics is the practice of integrating agricultural production with solar photovoltaic systems on the same land. Solar panels are installed at suitable heights and spacing to allow farming operations beneath or between them. Depending on the design, farmers can grow vegetables, fodder, medicinal plants and certain shade-tolerant crops while producing renewable electricity.
Unlike conventional solar parks, which may replace agricultural activity, agrivoltaic systems aim to preserve farming alongside energy generation. This approach could be particularly valuable in India, where agricultural land is essential for food security and rural livelihoods.
### Benefits for Indian Farmers
One of the most significant advantages of agrivoltaics is the possibility of earning income from two sources. Farmers may receive revenue from agricultural produce and electricity generated on their land. Depending on the ownership model, electricity can be sold to the grid, supplied to nearby consumers or used for irrigation pumps and other farm operations.
Solar panels also provide partial shade, which can reduce excessive exposure to sunlight and lower soil moisture loss under certain conditions. In hot and dry regions, this may help some crops withstand heat stress. However, the benefits depend on crop variety, local climate, panel height, spacing and the amount of sunlight reaching plants.
Agrivoltaics may also support more efficient water use. Reduced evaporation can help conserve moisture, although the effect varies with soil conditions and panel arrangement. Rainwater distribution must also be managed carefully because panels can concentrate rainfall in particular areas.
### Will Crop Yields Suffer?
The greatest challenge is balancing electricity production with agricultural productivity. Plants require sufficient sunlight for photosynthesis, growth and grain formation. Excessive shading can reduce yields, particularly in crops that need abundant sunlight.
Therefore, agrivoltaics cannot be introduced uniformly across all farms. Crop selection is essential. Leafy vegetables, certain fodder crops and shade-tolerant plants may perform well under appropriately designed systems, while wheat, rice and other sun-demanding crops may require more careful evaluation.
For Punjab, where wheat and rice are major crops, large-scale adoption should follow local field trials rather than assumptions. Researchers must measure crop yields, grain quality, water consumption, electricity generation and farmers’ profits over several growing seasons.
### Challenges and Practical Solutions
The initial investment in elevated solar structures can be substantial. Farmers may also face difficulties operating tractors, harvesters and irrigation equipment beneath panels. Installation must therefore accommodate farm machinery, drainage, crop height and routine agricultural activities.
Government support, affordable financing, cooperative ownership and partnerships with renewable-energy companies could make these systems more accessible. Agricultural universities and research institutions should develop region-specific models and demonstrate their performance through pilot projects.
Farmers must also receive clear agreements concerning electricity prices, maintenance costs, land ownership and responsibility for repairing damaged equipment. Small farmers should not be excluded because they lack the capital required for installation.
### A Sustainable Future
Agrivoltaics represents an opportunity to connect India’s agricultural heritage with its clean-energy ambitions. It could diversify farm incomes, improve land-use efficiency and contribute to lower-carbon electricity generation. Nevertheless, its success depends on scientific planning rather than simply placing solar panels over cultivated land.
The way forward is to begin with carefully selected pilot projects, compare crop yields with conventional farming, and expand only where economic and environmental benefits are demonstrated.
The future of farming may not require choosing between food and electricity. With appropriate technology, suitable crops and farmer-centred policies, one field could produce two valuable harvests—strengthening rural livelihoods while helping India move towards a cleaner and more sustainable energy future.
Dr Vijay Garg Retired Principal Educational columnist Eminent Scientist street kour Chand MHR Malout Punjab -152107 |
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