How India’s Ecozen Is Solving Post-Harvest Food Loss Using Solar Cold Storage

What is the problem?

One-third of the fruits, vegetables, and flowers produced in India are wasted due to post-harvest losses. Growers must sell 90% of their produce immediately after harvest, even if it means selling at whatever price the local middleman demands. Because most produce has a finite shelf-life, growers in India can't wait for market prices to improve, send their produce to other regions, or convert their raw produce into higher-value products. 

Indian small-scale farmers, who produce almost all the food in the country, earn only a small share of the value generated by their produce because they can't store it.

Produce solar-powered fridge

What is the solution?

Ecozen builds solar-powered refrigeration and irrigation solutions for smallholder farmers. It offers Ecofrost, a portable, solar-powered refrigeration chamber that maintains temperatures between 4°C and 10°C for 30 hours without batteries, using thermal energy storage. Ecofrost allows farmers to pre-cool their produce immediately after harvest. The solution can extend shelf life by days or weeks, depending on the produce, letting farmers wait for a higher price or export their produce.

Ecotron is Ecozen's other flagship product, a solar-powered irrigation controller that uses the Internet of Things and predictive analytics to improve irrigation efficiency. Farmers using Ecotron technology have doubled their crop yields through consistent irrigation, regardless of grid reliability in their villages. Ecozen operates Eco-Connect, an online platform that connects farmers using EcoFrost chambers with buyers seeking pre-cooled produce.

What is the business model?

Ecozen is a climate-tech firm that operates for profit and earns income by selling multiple products. EcoFrost and EcoTron are available for purchase or lease. They sell their products directly to smallholder farmers, farmer-producer organizations (groups of farmers who pool their money), and to state governments, which use the units under their agricultural development programs. 

Founders of Ecozen

How is it funded?

Founded in 2010 as an incubated company at IIT Kharagpur by three engineering graduates, Devendra Gupta, Prateek Singhal, and Vivek Pandey, the company is headquartered in Pune. 

Devendra Gupta serves as the company's CEO. Ecozen has raised funding through multiple rounds. The capital raised totals well over $30 million in equity and debt.

Why is it innovative?

Ecozen’s key technological insight is that battery or diesel power is not a viable option for cold storage for smallholder farmers. Batteries increase costs, require replacement, and do not perform well in rural conditions. Diesel generators are costly to maintain and contradict the concept of a green energy system. Ecozen engineers designed Ecofrost to use thermal energy storage with metal plates that store cold energy, charged by solar energy during the daytime. These metal plates continue cooling the room for up to 30 hours after sunset. 

A farmer in villages with limited electricity can use cold storage 24/7. Similarly, the Ecotron pump controller uses the same design concept for irrigation, providing IoT solutions that allow farmers to control their pumps remotely via a mobile phone.

Together, both products create a stack of solar-powered farm infrastructure. Ecofrost dominates India's solar cold storage market, accounting for more than 50% of installations.

Ecozen solar pumps for irrigation

What is the impact?

Ecozen, a leader in climate-smart technology, has deployed over 2,500 Ecofrost solar cold rooms across 10+ countries and produced over 300,000 Ecotron pump controllers, helping 180,000 farmers.

The company has facilitated 5.72 billion kWh of clean energy, prevented 50,000 metric tons of food waste, and enabled farmer profit increases of up to 40%. 

What needs to improve?

Ecozen faces three major challenges. The first is affordability. Even at its lowest price, Ecozen's Ecofrost devices remain too expensive for poor farmers, so the Company developed the EcoFrost Mini at a lower price point. Reducing costs while maintaining quality is a real challenge. 

The second challenge is that Ecozen's success is tied to government and Corporate Social Responsibility (CSR) programs.

The third is diversifying beyond the agricultural sector. Ecozen has started using its technology in electric vehicle battery control. This is an interesting strategy, but it may distract from their main mission.

Nonetheless, by building a solar-powered infrastructure system designed specifically for smallholder farms, Ecozen is closing one of the largest efficiency gaps in Indian agriculture and giving farmers a real chance to capture the value of what they grow.

Sources:

• Climate-smart deeptech startup Ecozen raises first tranche of Series C funding led by Dare Ventures

• Solar-powered solutions spark Agricultural Rebirth

• Solar Cold Storage Company Ecozen Completes $6 Million Series A Funding - Mercom India

• India’s Ecozen closes Series A on $6m to help farmers reduce spoilage, navigate supply chain

• Ecozen Solutions - Ashden

• Ecozen: sustainable cooling for farming communities - Ashden

• Ecozen Solutions – an Unreasonable company

• Climate-Tech Company Ecozen Raised over $23 million in Debt Funding

• Solar-Powered Cold Storage: A Sustainable Solution for India's Agricultural Sector -