What Is an On-Grid Solar System?
An on-grid (grid-tied) solar system is connected to the utility power grid. It does not use batteries. Excess electricity generated by your panels is exported to the grid, and you receive credit through net metering. This is the most common and cost-effective option for urban homes.
What Is an Off-Grid Solar System?
An off-grid solar system works independently from the utility grid. It uses battery storage to store excess energy for use during nighttime or cloudy days. Off-grid systems are ideal for remote areas without reliable grid connectivity.
Cost Comparison
On-grid systems are significantly cheaper because they don't require batteries. A 3kW on-grid system costs around ₹1.8–2.4 lakh, while an equivalent off-grid system with batteries can cost ₹3–4.5 lakh. Battery replacement every 5–7 years adds to the long-term cost of off-grid systems.
Which One Should You Choose?
Choose on-grid if you have reliable grid supply and want to save on electricity bills with net metering. Choose off-grid if you experience frequent power cuts or live in an area without grid access. Hybrid systems that combine both are also available for customers who want the benefits of both.
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