Turnkey Hydroponic Farms

The ask

Supply, install, and support modular hydroponic growing systems for urban rooftop farms, peri-urban greenhouse blocks, and NGO food-security projects in Bangladesh — bundling hardware, nutrient supply, agronomy support, and a produce offtake option into a single subscription.

Why now

Hydroponic vegetable yields are 3–8x higher per unit area than soil-based equivalents; nutrient-film technique (NFT) and deep water culture (DWC) systems are now cheap enough to assemble domestically from locally-available HDPE pipe and recycled containers. Bangladesh loses 15–30% of arable land seasonally to flooding; rooftop and elevated hydroponic systems are structurally flood-immune. Urban vegetable prices in Dhaka spike 40–80% from June–September as flood disrupts supply chains — a rooftop farm in Dhaka's dense blocks captures that premium without land cost.

Why Bangladesh

Dhaka has an estimated 200 km² of flat rooftop area, almost none of it productively used. The city imports 80%+ of its fresh vegetables from peri-urban belts, creating long, fragile supply chains vulnerable to flood and truck strikes. Bangladesh's garment factories, hospitals, and school networks are increasingly asked to demonstrate food-security commitments to international buyers and donors — a rooftop hydroponic kit is a legible, fundable answer. Local assembly of NFT channels, tanks, and pumps is straightforward at ৳3,000–6,000 per square metre of growing surface.

As a business

Revenue stacks: hardware kit sale or lease (৳1.5–4 lakh per 20m² unit), monthly nutrient and consumables subscription (৳3,000–8,000/month per unit), agronomy advisory retainer, and an optional produce buy-back scheme for customers who prefer to sell rather than consume. Leasing the hardware converts the upfront barrier into recurring revenue and builds a serviced fleet with predictable maintenance income.

Economics

Move the sliders to model your own hydroponic farm business. Defaults are order-of-magnitude estimates — pressure-testing them is part of what a founder pitches us.

What ZEPH would back

A founder with both agronomy knowledge and supply-chain discipline who has assembled and operated at least 10 units through a full growing cycle in Bangladesh. ZEPH is particularly interested in a model targeting garment factories and hospital campuses as anchor clients, where food-security commitments create a predictable institutional buyer.

Impact

Hydroponic rooftop farms in Dhaka produce 3–8× more food per unit area than soil-based equivalents while using 90% less water — displacing flood-disrupted peri-urban supply chains that currently cause 40–80% price spikes from June–September. Each 20 m² unit installed on a garment factory or school rooftop keeps an estimated ৳30,000–60,000 of vegetable spend per year inside the local economy. At 150 installed units, the aggregate system produces roughly 60 tonnes of vegetables annually, cutting the truck-freight CO₂e from peri-urban supply by an estimated 15–20 tonnes per year. The subscription nutrient supply model also displaces imported synthetic fertiliser inputs.