Bangladesh's 166 tea gardens in Sylhet and Moulvibazar face high diesel and grid electricity costs for factory processing, irrigation pumps, and worker housing. Rooftop solar and solar pumping systems are transforming the economics of tea estate management.
Bangladesh is home to 166 tea gardens, predominantly in the Sylhet and Moulvibazar districts, producing approximately 90 million kg of tea annually. Tea estates have substantial and diverse energy needs: factory processing (withering, rolling, fermentation, drying), irrigation pumping for nurseries and young tea fields, worker housing (over 100,000 permanent workers live on estates), and office and management facilities. Many estates still rely heavily on diesel generators, making solar a compelling economic and environmental upgrade.
| Energy use | Load | Solar solution |
|---|---|---|
| Tea factory (withering fans, dryers) | 50–200 kW | Rooftop solar on factory shed |
| Irrigation pumps | 10–50 kW | Solar pumping system |
| Worker housing (100–500 units) | 20–100 kW | Rooftop solar on housing blocks |
| Office & management | 5–20 kW | Rooftop solar on office building |
| Diesel generator replacement | Full backup | Hybrid solar + battery |
The tea factory is the largest energy consumer on any estate. Withering troughs use large fans that run for 14–18 hours during the flush season (March–November). A 200–500 kWp rooftop solar plant on the factory shed can power the withering fans during daylight hours, significantly reducing grid or diesel consumption. The factory's corrugated metal roof is ideal for solar mounting — Vvon's clamp-based racking system requires no roof penetration.
Tea nurseries and young tea sections require regular irrigation, especially during the dry season (November–February). Solar water pumping systems — using DC submersible pumps powered directly by PV panels — eliminate the need for grid power or diesel for irrigation. A 5–10 kWp solar pumping system can replace a 5 HP diesel pump, saving BDT 8,000–15,000 per month in fuel costs. Learn more about solar irrigation systems →
Many tea garden worker housing blocks in Sylhet and Moulvibazar have limited or unreliable grid connections. Rooftop solar with battery storage on housing blocks provides reliable lighting, fan power, and mobile charging for workers — improving living conditions and reducing estate management costs. A 20–50 kWp system with 40–100 kWh of battery storage can power 50–100 housing units.
Vvon Technologies handles solar for tea estates end to end — from factory rooftop solar to irrigation pumping and worker housing electrification. Learn more about solar for tea estates → or contact us for a free feasibility study →