Utilities Sector Playbook
This playbook covers the Utilities sector of the Indian stock market. Use it to understand how companies in this sector make money, what metrics matter most,...
Sector Overview
This playbook covers the Utilities sector of the Indian stock market. Use it to understand how companies in this sector make money, what metrics matter most, and how to value them.
What you will learn
- Business Models: Municipal contracts, BOT/BOOT concessions, O&M services
- Regulatory & Tariff Framework: Municipal pricing, bulk water tariffs, waste processing fees
- Growth Drivers: Swachh Bharat, Jal Jeevan Mission, smart cities, sewage treatment mandates
- Valuation: DCF for concessions, price-to-book for utilities, order book visibility
Sub-industries in this sector
| Basic Industry | Playbook |
|---|---|
| Emergency Services | View playbook |
| Multi Utilities | View playbook |
| Other Utilities | View playbook |
| Waste Management | View playbook |
| Water Supply & Management | View playbook |
How to use this playbook
Start with the Business Model lesson to understand how companies in this sector generate revenue. Then move through metrics, risks, and valuation in sequence. Each lesson builds on the previous one.
1. Utilities — Business Models
What you will learn
- Sub-segments within Indian utilities: water, waste management, gas distribution, multi-utilities
- Revenue models: BOT/BOOT concessions, O&M contracts, bulk tariffs, user charges
- Difference between city gas distribution (CGD) and water/waste utilities
- Contract structures: take-or-pay, capacity charges, volumetric pricing
- Key listed players and their positioning
- Why utilities are long-duration, low-volatility businesses
Indian utilities landscape
City gas distribution (CGD) — the dominant listed sub-sector
How CGD companies work
| Stage | Activity | Revenue Model | Capital Required |
|---|---|---|---|
| Infrastructure build | Lay steel/PE pipelines across authorized area | Front-loaded capex (₹5-10 Cr/km) | Very high (₹2,000-8,000 Cr per GA) |
| Customer acquisition | Connect residential, commercial, industrial users | Connection charges (₹5,000-7,000/residence) | Moderate |
| Gas sales (CNG) | Retail CNG through stations | Per-kg pricing (₹75-85/kg) × volume | Ongoing (station build ₹2-4 Cr each) |
| Gas sales (PNG) | Piped gas to homes, restaurants, industries | Per SCM pricing (₹35-55/SCM) × volume | Pipeline maintenance |
| Long-term revenue | Volume grows as penetration increases | Annuity-like — gas consumption is sticky | Low incremental |
CGD peer comparison
| Company | Geographical Areas (GAs) | CNG Stations | PNG Connections | Revenue (FY24) | EBITDA Margin |
|---|---|---|---|---|---|
| Indraprastha Gas (IGL) | Delhi NCR + adjoining | 900+ | 22L+ | ₹15,000 Cr | 14-16% |
| Mahanagar Gas (MGL) | Mumbai + Raigad | 350+ | 21L+ | ₹6,500 Cr | 18-20% |
| Gujarat Gas | Gujarat (multiple GAs) | 700+ | 18L+ | ₹16,000 Cr | 10-12% |
| Adani Total Gas | 33 GAs across India | 450+ | 7L+ | ₹4,500 Cr | 18-22% |
CGD economics — unit-level profitability
| Metric | CNG Segment | PNG (Domestic) | PNG (Industrial) |
|---|---|---|---|
| Selling price | ₹75-85/kg | ₹35-45/SCM | ₹45-55/SCM |
| Gas purchase cost | ₹45-55/kg (APM + spot blend) | ₹25-35/SCM | ₹30-40/SCM |
| Gross margin | ₹20-30/kg | ₹10-15/SCM | ₹10-20/SCM |
| Volume growth (annual) | 8-12% (driven by new CNG stations + EV alternative) | 12-15% (new connections ramp) | 3-5% (industrial demand) |
| Capital intensity | ₹2-4 Cr per CNG station | ₹5-10 Cr per km of pipeline | Same pipeline for all PNG |
CGD = utility with volume growth
Unlike power utilities (volume capped by demand), CGD companies grow volume through: (a) adding new CNG stations (each station = incremental revenue), (b) connecting new households (₹7K connection = 30-year revenue stream), (c) converting diesel vehicles to CNG, (d) expanding to new geographical areas won in PNGRB rounds. This is utility economics + growth — rare combination.
Water & sewage treatment — the emerging opportunity
Business models
| Model | How It Works | Revenue | Risk | Key Players |
|---|---|---|---|---|
| EPC (Build) | Build the plant, hand over to municipality | Milestone payments, one-time | Execution risk, payment delays | VA Tech Wabag, L&T Water |
| BOT/BOOT (Build-Operate-Transfer) | Build + operate for 15-25 years | Monthly capacity/volume payments | Operating risk, demand risk | VA Tech Wabag, Doshion |
| O&M (Operate & Maintain) | Operate someone else's plant | Annual O&M contract (₹ per MLD/day) | Low risk, recurring revenue | Ion Exchange, Praj Industries |
| HAM (Hybrid Annuity) | Build with 40% govt grant + 60% private | Annuity payments over concession | Similar to road HAM | VA Tech Wabag |
VA Tech Wabag — India's water specialist
| Metric | FY24 | What It Means |
|---|---|---|
| Revenue | ₹3,500 Cr | Largest listed water treatment company |
| Order book | ₹14,000+ Cr | 4x book-to-bill ratio (strong visibility) |
| EBITDA margin | 12-14% | Moderate (EPC drag; O&M higher) |
| O&M share of revenue | Growing (30%+) | Recurring revenue base expanding |
| Geography | India 60%, International 40% | Middle East, Africa, Southeast Asia |
Waste management — early-stage listed opportunity
Business models in waste
| Segment | Revenue Model | Key Players | Margin Profile |
|---|---|---|---|
| Municipal Solid Waste (MSW) collection | Per-ton tipping fee from municipality | Antony Waste, Ramky | 15-20% EBITDA |
| Waste-to-Energy (WtE) | Power generation + carbon credits + tipping fee | CPCB-approved plants | 20-25% EBITDA |
| Hazardous waste treatment | Per-ton treatment charges from industries | Ramky Enviro, Bharuch Enviro | 25-30% EBITDA |
| C&D waste (Construction & Demolition) | Processing fee + recycled material sales | IL&FS Environment (unlisted) | Early stage |
Antony Waste — India's largest MSW handler
| Metric | FY24 | Context |
|---|---|---|
| Revenue | ₹700 Cr | Growing 15-20% YoY |
| Cities served | Mumbai (all zones), Navi Mumbai, others | 60%+ from Mumbai contracts |
| Contract type | Long-term municipal contracts (7-15 years) | Recurring + escalation clauses |
| EBITDA margin | 18-22% | Higher than construction/EPC |
| Vehicles/equipment | 2,000+ | Capital-moderate (fleet depreciation) |
Contract structures — revenue certainty
| Contract Type | Revenue Certainty | Typical Duration | Example |
|---|---|---|---|
| Take-or-pay (gas purchase) | Very high | 15-25 years | CGD companies buy APM gas at guaranteed allocation |
| Capacity charge (water/WtE) | High | 15-20 years | Plant gets paid for capacity availability, not just usage |
| Volumetric (per-kg, per-SCM) | Moderate-high | Ongoing | CNG sales — volume depends on vehicle traffic |
| EPC milestone | Low-moderate | 2-4 years | One-time revenue, no recurring |
| O&M contract | High | 5-15 years | Fixed annual fee for operating a plant |
Indian context
🗣️
"Utility sector mein India mein sabse mature listed play CGD hai — IGL, MGL, Gujarat Gas — ye basically 'gas ka toll booth' hain. Pipeline bichha do (one-time capex), phir 30 saal tak har kg CNG pe ₹20-30 margin lo. Volume har saal 8-12% badhta hai (new stations + new areas + diesel-to-CNG conversion). Water aur waste mein opportunity bahut bada hai lekin listed options limited hain — VA Tech Wabag only pure-play water company hai (₹14K Cr order book = 4 saal ki visibility). Antony Waste mein municipal solid waste ka 7-15 year contract hai — recession-proof (garbage always comes). Ye sab low-glamour, low-volatility businesses hain — koi 50% growth nahi dega, lekin 15-20% earnings CAGR with predictability mil sakta hai agar sahi entry valuation pe buy karo. India mein utilities = infrastructure ka boring cousin — boring is good for compounding."
✅ Checklist
- ○I classify the company: CGD (IGL, MGL) vs water treatment (Wabag) vs waste (Antony)
- ○I understand revenue models: CNG/kg and PNG/SCM for gas; capacity charges for water; tipping fees for waste
- ○I check contract duration: longer = more predictable (15-25 year CGD license is very strong)
- ○I know CGD volume growth drivers: new CNG stations, PNG connections, new GAs won in PNGRB rounds
- ○I assess water companies on O&M share (recurring) vs EPC share (one-time)
- ○I evaluate utility businesses on: revenue visibility, contract length, volume growth, and regulated returns
Key takeaway
Indian utilities (CGD, water, waste) are long-duration businesses with high revenue visibility and low cyclicality — the opposite of metals/chemicals. CGD companies (IGL, MGL, Gujarat Gas) operate like toll booths: front-loaded capex for pipeline infrastructure, then decades of per-unit margin on growing volumes. Water treatment (VA Tech Wabag) has a ₹14,000 Cr order book providing 4 years of visibility. Waste management (Antony Waste) runs on 7-15 year municipal contracts that are recession-proof. These aren't high-growth stories — but they offer 15-20% earnings CAGR with bond-like predictability. In a portfolio context, they provide stability that complements cyclical holdings in metals, chemicals, or construction.
2. Utilities — Regulatory & Tariff Framework
PNGRB regulation for CGD companies: GA authorization, pricing, marketing exclusivity APM gas allocation and its impact on CGD margins Water utility tariff st...
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3. Utilities — Growth Drivers
CGD volume growth: CNG station additions, PNG household connections, new GA rampups Water infrastructure: Jal Jeevan Mission (₹3.6L Cr), AMRUT 2.0, desalinat...
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4. Utilities — Valuation
CGD valuation: P/E and EV/EBITDA with concession life context DCF for concessionbased businesses (CGD 25year license, water BOT) Water & waste company valuat...
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