Solar Savings Calculator
Estimate your required system size, annual generation, savings and payback period.
Estimate Your Solar Savings
How this calculator works
Our calculator provides a rough estimation based on averages for Bengaluru. Actual system design and savings require a proper site assessment.
Assumptions used in calculations:
- Sun Hours: Average of 5.0 peak sun hours per day in Bengaluru.
- System Efficiency: 80% (accounting for inverter losses, wiring, temperature, and dust).
- Tariff: Average of ₹7.00 per unit for simplicity (actual BESCOM tariffs use slab rates).
- Consumption: Assumes 100% of generated energy is either consumed or exported for credit via net metering.
- Cost: Approximate installed cost of ₹45,000 per kW (varies significantly based on brand, structure, and complexity).
Note: PM Surya Ghar subsidies and commercial accelerated depreciation benefits are not factored into the estimated payback period shown above, meaning your actual payback could be even faster if eligible.
Common Questions About Savings
How much can I save on electricity bills with solar in Bengaluru?
Savings depend on your current consumption, tariff slab, system size, roof orientation and shading conditions. For a typical home consuming 300–500 units per month, a suitably sized solar system can offset a significant portion of consumption. We provide honest estimates after assessing your specific situation — we don't make savings guarantees without knowing your actual usage.
What is the payback period for rooftop solar in Bengaluru?
Payback periods vary based on system cost, your electricity tariff, consumption pattern and available subsidies. We can calculate an indicative payback estimate for your specific situation after a site assessment. Our solar savings calculator on this website can give you a rough initial estimate.
Is the PM Surya Ghar subsidy available in Bengaluru?
PM Surya Ghar is a central residential rooftop solar scheme. Confirm your electricity connection, system eligibility, vendor requirements and current application process on the official portal before ordering. A product purchase alone does not establish subsidy eligibility; do not include a subsidy in your budget until the applicable requirements are confirmed.
What is net metering and how does it work with BESCOM?
Net metering allows you to export excess solar electricity back to the BESCOM grid and receive credit against your electricity bill. The eligibility, process and applicable regulations are managed by BESCOM and are subject to change. We can guide you through the application process as part of our installation service. Please contact us for the current applicable process.
What affects the price of a solar installation in Bangalore?
Price depends on capacity, panel and inverter models, battery requirements, mounting structure, cabling, protection equipment, roof conditions and the agreed installation scope. Compare itemised quotations that state taxes, transport, approval or metering charges and service coverage. A low headline price may not include the same components.
Will rooftop solar reduce my electricity bill to zero?
Solar can reduce purchased electricity, but a zero bill is not assured. Fixed charges, consumption outside solar hours, system output and the applicable billing arrangement still matter. Use your actual tariff and usage pattern to assess savings instead of treating all generated units as equal savings.
Do I need a battery to save money with solar?
A battery is not essential for every grid-connected solar installation. It is mainly considered when backup or energy storage is part of the requirement. Compare its extra cost, useful stored energy, expected operating conditions and warranty against the backup benefit you need.
Do I need BESCOM approval for a grid-connected solar installation?
Grid-connected solar needs the applicable distributor connection and commissioning process. Confirm the current application, metering, capacity and inspection requirements for your connection before installation. Do not energise an export connection simply because the equipment has been installed.
Can a business use the residential PM Surya Ghar subsidy?
PM Surya Ghar is a residential rooftop solar programme. Do not assume a commercial or industrial connection qualifies for residential assistance. Check the current scheme conditions for the actual connection category, and compare a business quotation without assuming that a residential subsidy will be paid.
MNRE rooftop solar programme information (opens in a new tab)
Get a Free, No-Obligation Solar Quote
Send us your details or simply share a photo of your last electricity bill on WhatsApp. We will tell you honestly what solar can and cannot do for your property.