Introduction

Power supply is one of the biggest challenges for Nigerian businesses.
Whether you run a:

✔ Shop
✔ Pharmacy
✔ Restaurant
✔ Salon
✔ School
✔ Laundry
✔ Office
✔ Supermarket

…you need constant and reliable power to operate smoothly.

But here’s the truth:

👉 The success of your solar investment depends on choosing the right system size.

A solar system that is too small will:
❌ trip your inverter
❌ drain batteries fast
❌ force you to use generator
❌ increase PHCN bills

But the RIGHT system size will:
✔ power your business 24/7
✔ reduce fuel cost
✔ eliminate downtime
✔ increase profits

In this guide, Solarzone Nigeria explains how to determine the perfect solar system size for YOUR business.

⭐ 1️⃣ Step 1: List All the Appliances Your Business Uses

Every business has different power needs.
Start by listing all equipment and their power ratings (wattage).

Example: Pharmacy

• Lights — 100W

• AC — 900W

• Freezer — 120W

• Printer — 40W

• Computer — 60W

• Router — 15W

Total = 1,235W

Solarzone performs a complete load assessment before installation.

⭐ 2️⃣ Step 2: Determine Peak Load (Highest Power Usage)

Peak load = maximum power your business uses at once.

Examples:

• AC + Freezer + Lights

• Computer + Printer

• Washing Machine + Dryer

Peak load determines your inverter size.

Inverter Size Guide:

• Small shops: 2.5kVA – 3.5kVA

• Medium shops: 3.5kVA – 5kVA

• Large shops/offices: 7.5kVA – 10kVA

• Industrial use: 15kVA – 100kVA

Solarzone picks an inverter with enough headroom to avoid overload.

⭐ 3️⃣ Step 3: Determine Daily Energy Usage (kWh)

Multiply each appliance’s wattage × number of hours used daily.

Example:

Pharmacy energy use:

• AC (900W × 6 hours) = 5.4kWh

• Freezer (120W × 24 hours) = 2.8kWh

• Lights (100W × 10 hours) = 1kWh

• Computer (60W × 10 hours) = 0.6kWh

• Router (15W × 24 hours) = 0.36kWh

Total = 10.16kWh/day

This helps calculate battery and panel size.

⭐ 4️⃣ Step 4: Choose the Right Battery Capacity

Businesses need stronger batteries because operations run longer and loads are higher.

Recommended Battery Type:

✔ Lithium batteries (best for business)
— They last 8–12 years
— Charge fast
— Support heavy usage
— Better for AC and POS shops

Battery Sizing Formula:

kWh needed ÷ Battery voltage

Example for 10kWh/day:
10,000Wh ÷ 48V ≈ 208Ah
Round up → 48V 200Ah lithium battery

For more appliances, you may need two 200Ah lithium batteries.

Solarzone sizes your battery bank according to your daily energy needs.

⭐ 5️⃣ Step 5: Choose the Right Solar Panel Size

Solar panels must:

✔ Run appliances during the day
✔ Charge the batteries fully
✔ Reduce PHCN usage

Formula:

Daily energy ÷ 5 hours sun

Example:
10,000Wh ÷ 5 = 2kW of solar panels

This equals:
➡ 5 panels of 450W
or
➡ 4 panels of 550W

Recommended:

Solarzone installs 6–10 panels for most business setups.

⭐ 6️⃣ Step 6: Match Inverter Size to Business Type

✔ Small Shops (POS, Boutique, Cosmetics)

• 2.5kVA – 3.5kVA inverter

• 2–4 panels

• 100Ah–200Ah lithium

✔ Barber Shop / Salon

• 5kVA inverter

• 150Ah–200Ah lithium

• 6–8 panels

✔ Pharmacy / Supermarket

• 5kVA – 7.5kVA

• 150Ah–200Ah lithium

• 8–12 panels

✔ Restaurants & Baking

• 7.5kVA – 10kVA

• 200Ah–300Ah lithium

• 10–14 panels

✔ Laundry Business

• 15kVA – 30kVA

• Multiple lithium batteries

• 20–40 panels

Solarzone customizes systems based on your actual appliances.

⭐ 7️⃣ Step 7: Decide If You Need a Hybrid System

For businesses with AC or heavy appliances, hybrid systems are BEST.

Hybrid benefits:
✔ Solar as main supply
✔ Batteries for night
✔ PHCN backup
✔ Generator only when needed

This ensures constant power without downtime.

⭐ 8️⃣ Signs Your Business Needs a Bigger Solar System

If you experience:
❌ Inverter tripping
❌ Battery draining fast
❌ Slow charging
❌ AC not running well
❌ Generator still used often
❌ New appliances added

…your system is too small.

Solarzone upgrades solar systems for growing businesses.

⭐ 9️⃣ Why Energy-Efficient Appliances Matter

Your solar performs better with:
✔ Inverter AC
✔ LED bulbs
✔ Low-watt freezer
✔ Energy-efficient computers

Replacing old appliances can reduce your solar size by 30–50%.

⭐ 10️⃣ Why Solarzone Is the Best for Business Installations

Solarzone provides:

⭐ Accurate load and energy audit
⭐ Custom solar sizing
⭐ Lithium battery solutions
⭐ High-efficiency monocrystalline panels
⭐ AC-compatible systems
⭐ Hybrid inverter setups
⭐ Professional wiring
⭐ Fast installation
⭐ Long-term support

We build business solar systems that save money and support growth.

🏁 Final Thoughts

Knowing the right solar system size for your business is the key to enjoying:

✔ Steady power
✔ Reduced costs
✔ Longer battery life
✔ Better customer service
✔ Higher profits
✔ Zero generator stress

Solarzone Nigeria ensures your solar system is perfectly sized for YOUR business — no under-sizing, no overspending.

💥 Call to Action

⚡ Want professional solar sizing for your business?
Contact Solarzone Nigeria today for a FREE solar assessment.

📞 Call/WhatsApp: 09091394722