यह पेज हिंदी में पढ़ें → · இந்தப் பக்கத்தைத் தமிழில் படிக்கவும் →
Tamil Nadu Electricity Bill Calculator 2026 & DISCOM Tariffs (2025-26)
Calculate your provisional electricity bill for any of Tamil Nadu's 1 distribution company — TNPDCL (TANGEDCO) — with a full slab-wise breakdown for 2025-26.
Open the Tamil Nadu bill calculator →
Electricity DISCOMs in Tamil Nadu
Select your distribution company to see its 2025-26 tariff schedule, service area and an indicative monthly bill.
Guides for Tamil Nadu consumers
More Tamil Nadu electricity tools
Compare Tamil Nadu rates with other statesSame units, every state — see where power is cheapestTamil Nadu smart meter rechargeRecharge steps, units-per-recharge and low-balance rulesRooftop solar savings calculatorHow much a rooftop system would cut a Tamil Nadu billNew electricity connection in Tamil NaduDocuments, charges and the step-by-step apply process
Electricity tariffs across South India
Frequently asked questions
How is the electricity bill calculated in Tamil Nadu?
Tamil Nadu bills combine slab-wise energy charges, a fixed/demand charge per kW (or kVA), a fuel & power purchase adjustment (FPPA) and electricity duty. Use our free calculator to get an itemised provisional bill for your DISCOM.
Which electricity distribution company serves my area in Tamil Nadu?
Tamil Nadu is served by 1 DISCOM: TNPDCL (TANGEDCO) (Entire Tamil Nadu). Open your DISCOM above for its full tariff and an indicative bill.
What is the cheapest domestic electricity rate in Tamil Nadu?
The lowest domestic energy charge across Tamil Nadu DISCOMs starts at about ₹4.95 per unit (lowest slab), before fixed charges, FPPA and duty. Exact rates depend on your DISCOM and consumption slab.
What is the current electricity tariff year for Tamil Nadu?
The rates shown are for 2025-26 (latest available).
Provisional estimates based on publicly available Tamil Nadu tariff orders (source: www.tnerc.tn.gov.in/Orders/files/TO-Order%20No6300620252131.pdf). Verify against your official bill — rates vary by sub-category, slab and city.