Solar Savings Calculator — Tamil Nadu
Built for TANGEDCO's bi-monthly EB bill. Enter your 2-month bill — get system size, cost & payback instantly.
TANGEDCO bills domestic consumers every 2 months — enter the amount from your latest EB bill.
TANGEDCO domestic (telescopic): ₹0 (free) up to ₹11.55/unit by slab
On-grid & hybrid qualify for govt subsidies
Recommended System
4 kW
Generation
1008 units/2mo
Savings
₹6,000/2mo
₹1,40,000
₹36,000
3.9 yr
₹9,00,000
Investment Breakdown
Environmental Impact
CO₂ Saved Annually
5.0 tons
Equivalent Trees Planted
0 trees/yr
Ready to get your exact quote?
Learn More About Solar
Disclaimer: Estimates are based on average Tamil Nadu conditions. Actual savings vary by location, roof orientation, shading, and usage. Contact us for a free site assessment and accurate quote.
Subsidy disclaimer: Central subsidy figures follow the PM Surya Ghar Muft Bijli Yojana slabs (₹30,000/kW up to 2 kW, ₹18,000 for the 3rd kW, capped at ₹78,000). The Tamil Nadu top-up of ₹5,000 (1 kW), ₹10,000 (2 kW) or ₹22,000 (3 kW and above) is per G.O. (Ms) No. 102 dated 19.09.2026, applies to residential grid-connected systems installed through an empanelled vendor, is limited to the first 1,00,000 applicants, and requires PM Surya Ghar portal registration on or after 05.08.2026. Subsidy is disbursed by TEDA via DBT after commissioning and inspection. Amounts, eligibility and scheme availability can change — confirm on pmsuryaghar.gov.in and with TEDA/TANGEDCO before you buy.