12kW / 13.32kWp Solar Inverter Installation – Lekki, Lagos State (March 2025)
Bravestone Energy Solutions completed a 12kW / 13.32kWp solar power installation for a smart 6-bedroom duplex in Lekki, Lagos State. The system powers all lighting points, televisions, 5–6 air conditioners, and other critical appliances, delivering a stable and sustainable energy supply.
Client:
Location: Lekki Lagos
Services Industrial Survey, System Design, PV & Battery Install, Protection & Controls, Commissioning, O&M
System Specifications
- 12kW single-phase SRNE hybrid inverters
- 2 units of 15kWh Galaxy Solar lithium batteries (30kWh total storage capacity)
- 24 units of 555W Jinko bifacial solar panels
Installation Process
Our team mounted the bifacial panels to maximize solar energy capture from both sides and integrated the inverters seamlessly into the property’s electrical system. The high-capacity batteries provide extended backup power during grid outages and nighttime use.
On the roof, we built robust sub-arrays with correct spacing for heat dissipation and access. DC cabling was run in UV-stable trunking with safe drip loops, and all junctions were labelled. Inside, we installed the inverter, battery stacks, protection panels, and a dedicated maintenance clearance zone. We reworked earthing to reduce impedance and implemented surge protection at strategic points in the system.
Commissioning involved line-by-line checks: DC strings, AC boards, breaker discrimination, and staged load tests. We also programmed delayed starts for the biggest machines so the system could ramp without stress. Supervisors received training on the monitoring dashboard and a simple “what-to-do” guide for shift leads.
Results were immediate: fewer brownouts, smoother machine starts, and a noticeable reduction in fuel runs. The client enrolled in quarterly preventive maintenance—thermal scans on boards, torque checks on terminals, firmware updates, and dust management for panels and power rooms—protecting output over the long term.
Our Approach
- Survey
- Load Modeling
- Design
- HSE & Procurement
- Clean Install
- Commissioning
- Monitoring
System Size
12kW / ~13.3kWp
Storage
30kWh battery
Outage Coverage
18 hours
Diesel Reduction
≈50–65%
Install Timeline
7 days & ~12 t/yr
Results & Impact
Production stability: Sequenced starts and voltage regulation reduce brownouts and stoppages.
Fuel/OPEX drop: ~50–65% reduction in generator runtime and associated costs.
Equipment protection: AVR layer and surge protection safeguard control electronics.
Workplace efficiency: Smoother restarts after grid events; better shift transitions.
Estimated solar yield: ~144–180 kWh/day (seasonal).
CO₂ avoided: ~12 t/year (indicative).
Operator empowerment: Supervisors trained on dashboards and simple response playbooks.
Service plan: Quarterly PM (thermal scans, torque checks, cleaning, firmware updates).
- Business Continuity – Reliable off-grid power eliminates downtime from grid interruptions
- Energy Efficiency – Optimized solar generation reduces long-term operating costs
- Sustainable Operations – Cuts carbon footprint while meeting demanding commercial energy needs
In Last 5 Years
& Workers With Us
Years Of Experience In
The Solar Industry
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