The Solar Investment ROI Calculator (Nigeria) helps you determine how quickly your solar system will pay for itself by comparing your current monthly spending on diesel/petrol generators and NEPA/Disco bills against the total cost of your solar setup. Simply enter your solar installation cost and ongoing energy expenses to instantly see your payback period in months and years, along with your annual savings.
This calculator is tailored to real Nigerian energy usage patterns, common inverter sizes, and 2026 estimated solar system costs, making it ideal for homeowners, landlords, offices, schools, churches, and small businesses looking to make an informed switch to solar energy.
☀️ Solar Investment ROI Calculator
Find out how fast your solar system pays for itself.
Include panels, inverter, batteries & installation.
Current Monthly Spending
Reference Data
| System Size | Battery Type | Approx. Cost (2026) | Suitable For |
| 3.5kVA | Tubular/Lead Acid | ₦1.1M - ₦1.4M | 3-Bedroom Flat (Basic Lights, TV, Fans, Fridge) |
| 5kVA | Lithium Ion | ₦3.2M - ₦5.5M | 4-Bedroom Duplex (Adds Freezer & Pumping Machine) |
| 10kVA | Lithium Ion | ₦9.5M - ₦12M | Large House / Office (Adds 1-2 Inverter ACs) |