How much does a rooftop solar plant save on BESCOM electricity bills?

With Karnataka's average domestic electricity tariff at approximately ₹8.10 per unit, a standard 3 kW system generating ~360 units per month delivers over ₹2,900 in monthly power bill savings, or upwards of ₹35,000 annually.

What is the rooftop solar capacity limit under BESCOM?

Under current Karnataka Electricity Regulatory Commission (KERC) and BESCOM rooftop guidelines, domestic consumers can install rooftop solar plants up to 100% of their sanctioned electricity meter load.

What is the PM Surya Ghar subsidy in Bengaluru, Mysuru, and Mangaluru?

Homeowners across all Karnataka DISCOMs (BESCOM, MESCOM, HESCOM, GESCOM, CESC) receive up to ₹78,000 direct bank transfer (DBT) subsidy for residential rooftop installations of 3 kW and above.

Updated for PM Surya Ghar: Muft Bijli Yojana (2026 Guidelines)

Karnataka Solar Rooftop Calculator (BESCOM & All DISCOMs)

Estimate solar generation, PM Surya Ghar subsidy, and bill savings for Bengaluru, Mysuru, Mangaluru, Hubballi, Belagavi, and all Karnataka districts.

Select Your State / Electricity DISCOM

Avg. Tariff:₹8.1/unit

Daily Sunshine:~4.7 Peak Hours

💡 Net metering permitted up to 100% of sanctioned load.

Choose Calculation Method:

Average Monthly Electricity Bill:₹2,500

₹500 / month₹5,000 / month₹10,000 / month₹15,000+ / month

Recommended Plant

2.5 kW

Requires 238 sq. ft. of shadow-free roof. Generates ~309 units/month.

Govt. Cash Subsidy

₹69,000

Direct Bank Transfer (DBT) credited straight to your bank account via PM Surya Ghar portal.

Net Out-of-Pocket

₹96,000

Original Cost: ₹1,65,000. Recovers cost in 3.2 Years!

Full Financial & Energy Feasibility Breakdown

Monthly Bill Savings₹2,503~₹30,036 / year

Payback Period3.2 YearsThen 21+ yrs 100% free power

25-Yr Net Savings₹9,01,060With 3% annual tariff inflation

5-Yr Solar Loan EMI₹1,901/moLess than your current bill!

Green Impact: Avoids 3 Tonnes of $CO_2$ every year — equivalent to planting ~135 trees!

🌱 100% Eco-Friendly

Official Subsidy Slabs

25-Year Performance

7.0% Collateral-Free Loan

Instant PDF Download

Karnataka Rooftop Solar Economics (BESCOM & KERC)

Karnataka has consistently ranked among India's foremost renewable energy pioneers. With domestic electricity tariffs in Bengaluru and southern Karnataka averaging ₹8.10 per unit, residential solar yields an exceptional internal rate of return (IRR) exceeding 30%.

⚡ High-Tariff Advantage (₹8.10/unit)

High domestic power slabs ensure rapid capital recovery. A 3 kW setup pays for itself in under 3 years under BESCOM net metering.

☀️ 4.7 Peak Sunshine Hours

Consistent southern plateau sunshine provides reliable year-round photovoltaic generation across Bengaluru, Mysuru, and central Karnataka.