How Solar Panels Reduce Your Electricity Bills
Solar panels generate electricity from sunlight, directly reducing the units you draw from the grid. For most homes and businesses, that translates into a dramatic drop in monthly electricity bills.
Where the savings come from
- Self-consumption: power you generate is power you do not buy.
- Net metering: surplus daytime energy is exported for bill credits.
- Protection from tariff hikes: your generation cost stays fixed for decades.
What payback to expect
A typical residential rooftop system pays for itself in roughly 3–5 years, after which you enjoy largely free electricity for the remaining 20+ years of the system’s life.
Use our free Solar Savings Calculator to estimate your recommended system size, annual savings and payback period based on your monthly bill.
Estimate Your Solar Savings
See how much you could save — enter your monthly electricity bill below.
Your Details
Estimated Results
Enter your details and tap “Calculate My Savings” to see your estimated system size, savings and payback.
Estimates are indicative and based on typical assumptions for West Bengal. Actual figures depend on your roof, shading, tariff and equipment.