Introduction

High energy costs are one of the biggest financial burdens facing Nigerian businesses. Whether it’s diesel, PHCN tariffs, or generator maintenance, companies lose millions every year.

This case study shows how Solarzone Nigeria helped a mid-sized Nigerian company reduce its energy bills by 60% within the first 3 months using a carefully engineered hybrid solar system.

🏢 Company Background

The client is a mid-sized distribution and cold storage company in Lagos.

Daily Power Situation Before Solar:

✔ Heavy reliance on two generators (20kVA & 30kVA)
✔ Unstable PHCN supply
✔ High fuel consumption
✔ Refrigeration downtime
✔ Increasing maintenance costs

The business operated from 7am to 10pm, running cold rooms, offices, freezers, and ACs.

💡 Main Challenges

The company faced the following serious challenges:

❌ Diesel cost of ₦2.4 million per month
❌ Weekly breakdowns of the 20kVA generator
❌ Frequent cold room temperature fluctuations
❌ High PHCN tariff charges
❌ Reduced productivity due to constant switching
❌ Rising equipment repair costs

The management contacted Solarzone for a permanent and sustainable solution.

🔍 Solarzone’s Energy Audit Findings

Solarzone engineers carried out a full commercial energy audit.

Key findings:

• Peak load: 17kW

• Major loads: cold room compressor, freezers, AC units

• Night loads were high due to refrigeration

• Generator was running 14–18 hours/day

• PHCN supply was available but unstable

• Batteries previously installed were weak and inefficient

Our team recommended a hybrid lithium solar solution to drastically reduce generator usage and diesel cost.

⚡ Solar System Installed by Solarzone

✔ 20kVA Three-Phase Hybrid Inverter (Commercial Grade)

Handles heavy cold room load, AC units, and office devices.

✔ 30 High-Efficiency Solar Panels (550W)

Provides strong daytime power for compressors and AC.

✔ 48V 800Ah Lithium Battery Bank

Ensures stable nighttime operation and refrigeration backup.

✔ 150A MPPT Charge Controller

Maximizes energy harvest from the solar panels.

✔ Industrial Wiring & Protection System

Includes:

• AC/DC breakers

• Surge protectors

• Isolators

• Cable management

✔ Automated Hybrid Configuration

Smart switching between:
✔ Solar
✔ Battery
✔ PHCN
✔ Generator

📉 Results After Installation

⭐ 1️⃣ Diesel Cost Reduced by 60%

Before solar: ₦2.4 million/month
After solar: ₦900,000/month

➡ Savings: ₦1.5 million monthly
➡ Annual savings: ₦18 million

⭐ 2️⃣ Generator Runtime Reduced by 72%

Before: 14–18 hours/day
After: 3–5 hours/day (rainy season backup only)

Benefits:
✔ less noise
✔ fewer breakdowns
✔ longer generator lifespan

⭐ 3️⃣ Stable Cold Room Operation

Temperature fluctuations stopped completely.

✔ More stable cooling
✔ Better product preservation
✔ Zero spoilage
✔ Improved business reliability

⭐ 4️⃣ PHCN Bills Reduced by 48%

Daytime loads now run mostly on solar.
PHCN used only for light evening support.

⭐ 5️⃣ Productivity Increased by 30%

Staff now enjoy:
✔ uninterrupted power
✔ stable AC
✔ reliable office operations
✔ smoother workflow

Downtime reduced drastically.

⭐ 6️⃣ Equipment Life Improved

Cold room compressors, AC units, freezers, and IT devices now receive:
✔ clean power
✔ stable voltage
✔ no spikes

This cuts repair costs significantly.

⭐ 7️⃣ Return on Investment (ROI)

The company expects full ROI in:

➡ 14–18 months

Afterward, the system provides almost free power for over 20 years.

🛠 Solarzone’s After-Installation Support

Solarzone provided:
⭐ Maintenance schedule
⭐ Training for staff energy management
⭐ Monitoring system for performance
⭐ Battery life optimization tips
⭐ 24/7 technical support

This ensures long-term performance and customer satisfaction.

⭐ Why the Project Was Successful

The success came from:

✔ Accurate energy audit
✔ Correct system sizing
✔ Use of lithium batteries
✔ High-efficiency commercial inverter
✔ Proper panel arrangement
✔ Professional engineering
✔ Smart hybrid setup
✔ Continuous monitoring

Solarzone’s commercial engineering approach made all the difference.

🏁 Conclusion

This case study proves one thing:

Solar is no longer an option — it is a business advantage.

By switching to hybrid solar power, the company:

✔ reduced cost
✔ improved efficiency
✔ stabilized operations
✔ increased profit
✔ achieved energy independence

Solarzone continues to help businesses across Nigeria achieve the same results.

💥 Call to Action

⚡ Want to reduce your business energy cost like this client?
Contact Solarzone Nigeria today for a full commercial solar assessment.

📞 Call/WhatsApp: 09091394722