This industrial facility in Lagos ran on grid power supplemented by diesel generators during daily outages. With Nigeria's grid instability and commercial tariffs among the highest in West Africa, monthly electricity spend exceeded $140,000. Production lines were interrupted 15–20 times per month, and each outage triggered diesel generator startup at $0.45/kWh — nearly double the grid rate.
The facility needed uninterrupted 24/7 power for continuous production. Diesel backup was costing an additional $38,000/month during outage hours alone. Voltage fluctuations from the unstable grid had already damaged sensitive equipment twice in the previous year.
Mars Solar engineered a grid-tied solar power system with battery energy storage (BESS) sized to shave peak demand and carry critical loads through outages. The system was delivered in containerized, factory-pre-tested blocks — each cabinet passed a 72-hour full-load burn-in test before shipment.
| Solar PV Capacity | 6 MW (13,340 Tier-1 bifacial modules) |
|---|---|
| Battery Energy Storage | 20 MWh LFP (Lithium Iron Phosphate) |
| Inverters | Grid-tied hybrid inverters, 6 × 1MW units |
| System Type | Grid-tied with peak shaving + backup |
| Monitoring | IoT platform, remote diagnostics |
| Installation | Mars Solar engineers on-site, 45 days |
The system now supplies 78% of the facility's annual electricity demand. Monthly electricity costs dropped from over $140,000 to under $32,000 — a saving of $108,000+ every month. Grid outages no longer interrupt production: the BESS delivers seamless transfer in under 20 milliseconds. Diesel generator runtime dropped 92%.
| Monthly savings | $108,000+ |
|---|---|
| Annual savings | $1.29M+ |
| Payback period | ~24 months |
| CO₂ reduction | 4,900 tons/year |
| Diesel displacement | 92% of backup runtime |
“Mars Solar's engineering team delivered exactly what was promised. The ROI calculations they presented during the proposal phase matched the actual performance within 5%.”
— Facility Director, Lagos Industrial Complex
At 6MW and 20MWh the economics shift from tariff savings to production continuity: this Lagos complex was losing power 15–20 times a month and paying $0.45/kWh for diesel backup, on top of monthly grid spend above $140,000. A 6MW solar storage system of this size is engineered as a containerized plant — parallel BESS cabinets, synchronised inverters and EMS dispatch — and remains our flagship reference for multi-MW industrial sites where a 6MW solar storage system replaces both grid draw and generator runtime.
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