If you live in Hyderabad, Warangal, or anywhere else in Telangana, you have probably heard a lot about the state government’s free electricity scheme. The Gruha Jyothi scheme launched by the Telangana government is one of the most generous domestic electricity subsidies in India — offering genuinely zero electricity bills for qualifying households that consume 200 units or less per month. But for households that cross that threshold, the billing structure shifts into a multi-slab group system that can be confusing to navigate. Our updated Telangana electricity bill calculator 2026 handles all of this automatically, giving you an instant, accurate estimate whether you are in the zero-bill zone or the full-billing zone.
To understand what each unit of electricity actually costs in Telangana, we recommend reading our detailed reference guide on the 1 unit electricity price in Telangana. That article explains the TGSPDCL and TGNPDCL group-based rate structure in full, including how the Gruha Jyothi subsidy interacts with the billing calculation. Together, these two resources give you a complete understanding of exactly how your monthly power bill works.
In this guide, we explain the complete TGSPDCL bill calculation formula for domestic users, walk through both billing scenarios with real worked examples, explain what customer charges are, and share five practical strategies on how to save electricity bill in Telangana.
The Gruha Jyothi Scheme — What It Actually Means for Your Bill
The Gruha Jyothi free electricity scheme eligibility is straightforward but has an important condition that many people miss. Here is exactly how it works:
- Who qualifies: White ration card holders with an LT-I domestic connection consuming 200 units or less per month. The subsidy is automatically applied by TGSPDCL / TGNPDCL — no separate application is needed.
- The zero-bill benefit: If your monthly consumption is at or below 200 units, your entire electricity bill (energy charges + fixed charges + customer charges + duty) is waived. Your payable amount is exactly ₹0.
- The critical cutoff: The moment your monthly usage goes to 201 units or above, Gruha Jyothi does NOT apply. The entire bill is recalculated from scratch using the Group C slab rates — and you pay the full amount with no subsidy.
⚡ Key Fact About Gruha Jyothi
The Gruha Jyothi scheme does not give you 200 free units that can be subtracted from a larger bill. It only applies when your total monthly consumption is 200 units or less. A household consuming exactly 200 units pays ₹0. A household consuming 201 units gets no benefit and pays the full Group C bill for all 201 units.
Electricity Bill Calculators for Neighboring States
Telangana borders several major states. You can compare tariff structures using the Andhra Pradesh Electricity Bill Calculator for APEPDCL rates, the Maharashtra Electricity Bill Calculator for MSEDCL tariffs, the Karnataka Electricity Bill Calculator, or the Chhattisgarh Electricity Bill Calculator.
How to Calculate Telangana Electricity Bill (Step-by-Step)
Understanding how to calculate Telangana electricity bill requires knowing which billing group your monthly usage falls into. Our calculator does this automatically. Here is how to use it:
- Step 1: Read Your Meter: Note the total units consumed for the current month from your TGSPDCL smart meter or from the printed bill you received.
- Step 2: Enter Units in the Calculator: Type the monthly units into the input box. Telangana is billed monthly (not bi-monthly), so this number represents one month of consumption.
- Step 3: Select LT-I Domestic: Choose the appropriate connection category from the dropdown. For homes, “LT-I Domestic (Gruha Jyothi)” is the correct selection.
- Step 4: Click Calculate: The tool instantly determines your billing group (A, B, or C), applies the correct slab rates, adds customer charges, fixed charges, and 6% electricity duty to generate your estimated bill.
TGSPDCL Domestic Tariff Slabs — Understanding the Group System
The TGSPDCL domestic tariff slabs are organized into three consumption groups. Each group has its own slab rates, fixed charges, and customer charges. The table below gives you the complete picture for the LT-I domestic (residential) category:
| Billing Group | Monthly Units | Slab Rates (₹/unit) | Fixed Charge | Gruha Jyothi |
|---|---|---|---|---|
| Group A | 0 – 100 Units | ₹1.45 (0–50 units) ₹2.60 (51–100 units) |
₹10 | ✅ Zero bill (if ≤200 units total) |
| Group B | 101 – 200 Units | ₹3.30 (0–100 units) ₹4.30 (101–200 units) |
₹10 | ✅ Zero bill (if ≤200 units total) |
| Group C ⚠️ | Above 200 Units | ₹5.00 (0–200) ₹7.20 (201–300) ₹8.50 (301–400) ₹9.00 (401–800) ₹9.50 (800+) |
₹10 (≤800 u) ₹50 (>800 u) |
❌ No subsidy — full bill |
Additionally, TGSPDCL levies a monthly customer charge on top of your energy and fixed charges. This charge also varies by monthly consumption:
| Monthly Units | Customer Charge (₹/month) | Notes |
|---|---|---|
| 0 – 50 Units | ₹ 40 | Waived under Gruha Jyothi (≤200 units) |
| 51 – 100 Units | ₹ 70 | Waived under Gruha Jyothi |
| 101 – 200 Units | ₹ 90 | Waived under Gruha Jyothi |
| 201 – 300 Units | ₹ 100 | Gruha Jyothi does NOT apply |
| 301 – 400 Units | ₹ 120 | Full Group C billing |
| 401 – 800 Units | ₹ 140 | Full Group C billing |
| Above 800 Units | ₹ 160 | Full Group C billing |
Real Worked Examples Using the TGSPDCL Bill Calculation Formula
Example 1: Monthly Usage 185 Units — Zero Bill (Gruha Jyothi)
Since 185 units is below the 200-unit Gruha Jyothi threshold, the entire bill is waived:
| Billing Item | Amount (₹) |
|---|---|
| Energy Charge (Group B slabs) | ₹ 669.50 |
| Fixed Charge | ₹ 10.00 |
| Customer Charge | ₹ 90.00 |
| Electricity Duty (6%) | ₹ 40.17 |
| Gruha Jyothi Subsidy | – ₹ 809.67 (Full Waiver) |
| Total Payable | ₹ 0.00 ✅ |
Example 2: Monthly Usage 220 Units — Full Group C Bill (No Subsidy)
Since 220 units exceeds 200, Gruha Jyothi does not apply. All 220 units are billed under Group C rates:
| Slab | Units | Rate (₹) | Cost (₹) |
|---|---|---|---|
| 0 – 200 Units | 200 Units | ₹ 5.00 | ₹ 1,000.00 |
| 201 – 220 Units | 20 Units | ₹ 7.20 | ₹ 144.00 |
| Fixed Charge | ₹ 10.00 | ||
| Customer Charge (201–300 units) | ₹ 100.00 | ||
| Electricity Duty (6%) | ₹ 69.24 | ||
| Total Payable | ≈ ₹ 1,323 | ||
This comparison — ₹0 for 200 units versus ₹1,323 for 220 units — shows exactly why keeping monthly usage below 200 units is so financially valuable for qualifying Telangana households.
TGSPDCL Commercial & Other Category Rates
| Category | Rate / Unit (₹) | Fixed Charges | Notes |
|---|---|---|---|
| Commercial LT-II (Shops / Offices) | ₹8.50 – ₹11.00 (telescopic) |
₹70–₹100 / month | Load input required; no Gruha Jyothi |
| Industrial LT-III | ₹ 7.70 (Flat) | ₹100 / kW / month | Industrial service connections |
| Agriculture LT-V | ₹ 2.50 (Flat) | ₹ 0 | Highly subsidized pumping rate |
| EV Charging Station LT-IX | ₹ 6.00 (Flat) | ₹ 0 | Public EV charging stations |
5 Practical Ways to Save on Your TGSPDCL Electricity Bill
💡 Pro Tip: Eliminate Your Electricity Bills with Solar!
Instead of just reducing your appliance usage, installing a grid-connected rooftop solar system can completely wipe out your electricity bills. You can generate your own power and even sell the excess back to TSSPDCL/TSNPDCL. Use our new Telangana Solar Bill Calculator to instantly estimate your installation cost, government subsidies, and monthly savings in seconds.
Whether you qualify for Gruha Jyothi or not, here are five concrete strategies on how to save electricity bill in Telangana that work particularly well in the Deccan Plateau’s hot and dry climate:
1. Stay Below 200 Units to Get a Zero Bill
If you are a white ration card holder, staying within 200 units per month means paying absolutely nothing. Check your TGSPDCL smart meter every week and estimate your end-of-month total. If you are tracking close to 195 units with a week left, cut back on your geyser, reduce AC hours, or turn off standby devices to protect your zero-bill status.
2. Use Inverter ACs with a 26°C Thermostat Setting
Hyderabad and much of Telangana experience intense summers from March to June, pushing temperatures above 40°C. A traditional 1.5-ton non-inverter AC running at 18°C for 8 hours in these months can easily consume 150 to 200 units in a single month. Switching to a 5-star inverter AC and setting the thermostat to 26°C can cut AC consumption by 40%, which is often the difference between a zero bill and a ₹1,500 bill.
3. Run Heavy Appliances During Off-Peak Hours
Washing machines, dishwashers, and electric irons draw large amounts of power. Running these appliances late at night or early in the morning (after 10 pm or before 7 am) does not lower your tariff directly, but spreading out usage makes it easier to track and control your daily unit consumption, preventing end-of-month surprises.
4. Install a Smart Plug Energy Monitor
Smart plugs with built-in energy monitoring (available for ₹500 to ₹1,500 online) can show you in real time how many watts each appliance is drawing and how many units it has consumed this month. Plugging your refrigerator, AC, or washing machine into such a device gives you actionable data to cut consumption before you reach the 200-unit Gruha Jyothi boundary.
5. Apply for Solar Net Metering Through TGSPDCL
Telangana receives excellent solar radiation throughout the year, making rooftop solar one of the best investments a Hyderabad homeowner can make. Under TGSPDCL’s net metering program, the solar units you export offset your consumption, effectively reducing your net monthly usage. A 2kW system can generate 200 to 250 units per month, keeping you permanently within the Gruha Jyothi zero-bill zone.
Frequently Asked Questions (FAQs)
Which discom manages my electricity in Telangana — TGSPDCL or TGNPDCL?
Telangana has two state electricity distribution companies. TGSPDCL (Telangana State Southern Power Distribution Company) serves the southern districts including Hyderabad, Rangareddy, and Nalgonda. TGNPDCL (Northern Power Distribution Company) serves the northern districts including Warangal, Karimnagar, and Adilabad. Both companies use the same tariff structure and both implement the Gruha Jyothi scheme identically.
Does the Telangana electricity duty 6% apply if my bill is zero under Gruha Jyothi?
No. If your total consumption is 200 units or less and you qualify for Gruha Jyothi, the entire bill — including energy charges, customer charges, fixed charges, and the 6% electricity duty — is fully waived. You pay nothing at all. The Telangana electricity duty 6% is only charged when your bill is payable under Group C.
How do I check my TGSPDCL bill online?
Visit the official TGSPDCL self-service portal (tgspdcl.in) and enter your service connection number to view your current bill, usage history, and due date. Payments can also be made through UPI apps like Google Pay and PhonePe by searching for “TGSPDCL” as the biller.
What are TGNPDCL customer charges and why am I being charged them?
TGNPDCL customer charges (also called service charges) are a fixed monthly fee charged to every connection for maintaining the distribution infrastructure, meter management, and billing services. The amount depends on your monthly consumption slab and ranges from ₹40 for very low usage to ₹160 for heavy consumers. These charges are waived entirely when Gruha Jyothi applies.
⚠️ Important Disclaimer
This calculator is an independent tool built using publicly available TGSPDCL / TGNPDCL tariff data for FY 2026-27. It is NOT an official bill calculator. We are not affiliated, associated, authorized, endorsed by, or in any way officially connected with TGSPDCL, TGNPDCL, or the Government of Telangana.
For official billing queries, Gruha Jyothi scheme verification, and payment, please refer to the official portals:
TGSPDCL Official Portal →
TGNPDCL Official Portal →
⚖️ Editorial & Data Verification Disclaimer
The tariff rates, slabs, and calculation presets used on this page are compiled and audited from the official tariff schedules released by the Telangana Electricity Regulatory Commission (TSERC). While we update our database regularly to reflect current active notifications, users are advised to verify their official bills on the official portal at TSERC Website.