Built on live TANGEDCO 2026 tariffs, current PM Surya Ghar subsidy slabs, and the CEA grid emission factor. Maths shows its working.
Bill, district, connection → exact kW. Capped to your sanctioned load.
PM Surya Ghar filed end-to-end. Subsidy credited before EMI begins.
Quote to meter-flip in 30 days. Photo and generation log on WhatsApp.
Bill + district + connection → recommended system size, capped to your sanctioned load.
Central subsidy is per kW, capped at 3 kW for the full ₹78,000. Domestic only.
TANGEDCO domestic tariff is telescopic: cheap below 100 kWh, pricier above 400.
Bifacial TOPCON needs ~65 sqft per kW with safe spacing.
Tariff inflation, degradation, inverter swap year 12 — all priced in.
Refreshed monthly from TANGEDCO + PM Surya Ghar portal.
TNERC notified the new Grid Code 19 Feb 2026.
No. Customer subsidy in May 2026 = central PM Surya Ghar only: ₹30,000 at 1 kW, ₹60,000 at 2 kW, ₹78,000 at 3 kW or above.
Annual settlement capped at 90% of annual import. Oversizing beyond consumption no longer pays back at retail.
TANGEDCO must approve/reject within 30 days. Median for Coimbatore zone is 45-60 days (Mercom 2026).
From 1 June, subsidy modules must use ALMM List-II domestic cells. Quotes will rise ₹3-5/Wp.
Mercom tracks median DBT credit at 3-6 months, not the official 30 days.
From Sep 2025, GST on solar goods and EPC services = 5% (down from 12%).
SBI YONO Surya, HDFC, Canara — solar loans 7-10% for 3-7 years.
Batteries double install cost. Honest answer when not to add one.