One of the most common questions people ask before installing solar is: How much does a solar system actually cost?
In this blog, we’ll break down solar system pricing in a simple and clear way so you can plan your investment confidently.
What Determines the Cost of a Solar System?
The cost of a solar power system depends on several important factors:
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System size (kW capacity)
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Type of system (On-grid, Off-grid, Hybrid)
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Quality of solar panels and inverter
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Battery capacity (if required)
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Installation and mounting structure
Average Solar System Cost (Estimated)
Prices may vary based on brand, location, and market conditions.
1 kW Solar System
Cost: BDT 120,000 – 180,000
Suitable for: Basic home use (lights, fans, TV)
3 kW Solar System
Cost: BDT 300,000 – 450,000
Suitable for: Small homes or offices
5 kW Solar System
Cost: BDT 500,000 – 750,000
Suitable for: Medium homes, shops, small factories
10 kW Solar System
Cost: BDT 1,000,000 – 1,500,000
Suitable for: Commercial use
Installation & Maintenance Cost
Installation cost is usually included
Minimal maintenance required
Occasional cleaning and check-ups
Annual maintenance cost is very low compared to electricity bills.
Return on Investment (ROI)
Most solar systems recover their cost within:
3–6 years for on-grid systems
4–7 years for off-grid or hybrid systems
After that, electricity is almost free for the remaining system life.
Is a Solar System Worth the Cost?
Yes, if you:
Pay high electricity bills
Experience frequent power cuts
Want long-term savings
Care about the environment
Solar is an investment, not an expense.
Cost Comparison by System Type
On-Grid Solar System
Lowest cost
No batteries
Faster return on investment
Depends on grid availability
Off-Grid Solar System
Higher cost
Requires batteries
Ideal for load shedding areas
Hybrid Solar System
Highest cost
Uses grid + batteries
Best for uninterrupted power
Solar Battery Cost
Batteries are one of the most expensive parts of a solar system.
Lead-acid batteries: Lower cost, shorter life
Lithium batteries: Higher cost, longer life
Battery costs can range from BDT 40,000 to 300,000+, depending on capacity and type.
Installation & Maintenance Cost
Installation cost is usually included
Minimal maintenance required
Occasional cleaning and check-ups
Annual maintenance cost is very low compared to electricity bills.
Return on Investment (ROI)
Most solar systems recover their cost within:
3–6 years for on-grid systems
4–7 years for off-grid or hybrid systems
After that, electricity is almost free for the remaining system life.
Conclusion
The cost of a solar system depends on your energy needs and system type. While the initial cost may seem high, the long-term savings and energy security make solar power a smart decision.
Before installing, always consult a trusted solar provider for a customized solution.
