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Case study · Humanitarian hub · Maiduguri, Borno State
Solar hybrid power for a humanitarian hub in Maiduguri
Our largest hub system: 562.5 kWp of solar and 2,212 kWh of battery storage for the main regional hub in Maiduguri, working side by side with the city grid.
Solar
562.5 kWp
Battery storage
2,212 kWh
Air conditioners
About 290
Commissioned
Feb 2025
Solar carports and rooftop arrays at the Maiduguri hub.
What it powers at the humanitarian hub in Maiduguri
This is the biggest hub in the programme, with guest rooms, offices and shared spaces for humanitarian staff. It runs about 290 air conditioners, plus water heaters, a large kitchen, fridges and freezers, water pumps, lighting and internet servers.
How we split the loads
We wired the hub into two circuits, so the things that matter most never go off.
Critical loads: always on
Lights, fans, computers, internet, fridges and security run on the battery 24 hours a day.
Heavy loads: smart control
Air conditioners, water heaters and kitchen equipment run on solar and battery first. When the battery drops to 40%, the city grid takes over the heavy loads.
What we did
✓ Took out the old 125 kWp array of low-quality panels completely
✓ Installed 900 new JinkoSolar bifacial panels on the roofs and on two 60 kWp solar carports
✓ Built a temperature-controlled power room with 10 Deye 50 kW hybrid inverters
✓ Connected the system to the city grid, with the generators kept as backup
✓ Ran a 72-hour stability test before handover
Full equipment list
• 562.5 kWp: 900 × JinkoSolar 625 Wp bifacial panels (rooftop and two 60 kWp carports)
• 500 kW inverter capacity: 10 × Deye 50 kW high-voltage hybrid inverters
• 2,212 kWh storage: 36 × Deye 61.44 kWh high-voltage battery racks (30 at handover, 6 added later)
• Grid-connected hybrid with generator backup
• Remote monitoring on DeyeCloud
Brands used: Deye · JinkoSolar
How the load control works
We sorted every circuit in the hub with the client's technical team. Critical loads sit on the battery circuit and never go off. Heavy loads sit on a separate, controlled circuit. Solar and battery carry everything first. When the battery drops to 40%, the city grid supports the heavy loads, so the battery is kept for the critical ones. The generators stay as a backup for grid outages.
Part of an eight-hub programme
See the other hubs: Banki · Bama · Monguno · Dikwa · Gwoza · Ngala · Damasak
See the whole programme →
Running a facility on generators?
Tell us about your loads. We'll visit, measure and size a system that keeps the important things on.