From Diesel-Dependent to Smart Renewable Farming

Bangladesh’s agriculture is facing a challenge that can no longer be addressed simply by producing more food. We must also ask how we can produce more with less energy, less water and lower environmental costs. Rising fuel prices, pressure on electricity supply, dependence on diesel-powered irrigation and growing water stress are increasing farmers’ production costs and creating new risks for long-term food security.

The problem is particularly acute in irrigation. According to the Sustainable and Renewable Energy Development Authority (SREDA), Bangladesh has around 1.34 million diesel-powered irrigation pumps serving about 3.4 million hectares of farmland. With diesel powering more than 75 per cent of agricultural irrigation systems, farmers remain vulnerable to fuel price increases and supply disruptions. Government subsidies may protect them from sudden price shocks, but they also impose a heavy burden on public finances.

This dependence on diesel also has a wider economic cost. Money spent on fuel subsidies could instead support infrastructure, healthcare, education and sustainable agricultural investment. Reducing fossil-fuel dependence in farming, therefore, is not merely an environmental choice; it is an economic necessity. This is where smart, eco-friendly farming can offer a practical way forward.

According to the Sustainable and Renewable Energy Development Authority (SREDA), Bangladesh has around 1.34 million diesel-powered irrigation pumps serving about 3.4 million hectares of farmland. With diesel powering more than 75 per cent of agricultural irrigation systems, farmers remain vulnerable to fuel price increases and supply disruptions.

Bangladesh has already shown that solar irrigation is feasible. SREDA reports that more than 2,300 solar irrigation pumps have been installed across the country. Earlier programmes supported by IDCOL also helped establish more than 1,500 solar irrigation pumps, with total installed capacity exceeding 42 MWp. These initiatives demonstrate that renewable energy can gradually replace diesel while reducing emissions and operating costs.

But replacing a diesel pump with a solar pump alone is not enough. The next generation of farming must also become water-smart. Soil-moisture sensors, digital controllers and automated irrigation can determine when crops actually need water. Combined with drip or micro-irrigation, such systems can reduce unnecessary water use and the energy required for pumping.

This matters because Bangladesh depends heavily on groundwater for irrigation. Around 75 per cent of irrigation reportedly comes from groundwater, and excessive extraction has already raised concerns about declining water tables in parts of the country, particularly the northwest. Smart irrigation can therefore help protect both agricultural productivity and groundwater resources.

The concept should go even further. A truly integrated smart farm could combine solar energy, water management, livestock, aquaculture, organic fertiliser and waste-to-energy technologies. Agricultural and livestock waste can be converted into biogas, while solar electricity can support fish farming, livestock housing and small-scale processing. Such a system can create a rural circular economy in which waste becomes a resource and renewable energy supports production.

There is also a clear national interest. Reducing diesel consumption in agriculture can ease pressure on the import bill and foreign-exchange reserves. Although fuel consumption and costs vary with market conditions, the strategic lesson remains the same: reducing fossil-fuel dependence can strengthen both energy security and economic resilience.

Therefore, smart eco-friendly farming should not remain confined to isolated pilot projects. It should become part of Bangladesh’s agricultural, energy and climate strategies. The government can accelerate this transition through low-cost financing, concessional loans for solar irrigation, incentives for energy-efficient equipment, reduced duties on appropriate smart-farming technologies and stronger public-private partnerships. Farmers must also receive practical training so that these technologies can work effectively at the grassroots level.

Bangladesh’s energy crisis is undoubtedly a challenge, but it can also be an opportunity to transform rural agriculture. By reducing dependence on diesel, easing pressure on the electricity grid, conserving groundwater and integrating renewable energy with digital technology, we can build a farming system that is more efficient, climate-resilient and sustainable.

The future of agriculture should not be measured only by how much food we produce. It should also be measured by how efficiently we produce it-with less energy, less water and fewer natural resources.

The time has come to move Bangladesh from diesel-dependent farming to smart renewable-energy farming. This transition could become one of the most practical pathways towards long-term food, energy and environmental security.