NHPC — India's hydro annuity, finally commissioning
NHPC Limited
1. Snapshot
NHPC is India’s largest hydropower generator — a Government-of-India Navratna PSU that owns ~6,971 MW of hydro (about 15% of the country’s installed hydro), runs 28 stations across 15 states and 2 UTs, and sells regulated bulk power to discoms on a cost-plus tariff. Market cap ₹76,161 Cr, price ₹75.8, 52-week range ₹68.7–89.8, trailing P/E ~20.2, P/B ~1.9, dividend yield 2.5%. The animal: a regulated annuity utility with a giant, slow-burning capex pipeline — low current returns, long-gestation hydro, and growing solar + pumped-storage optionality bolted on for the renewables era. As of 2026-06-20, from screener snapshot.
2. Business & position in the value chain
NHPC sits at the generation node of the value chain, and specifically the hardest, slowest corner of it: large hydro. The economics are unusual and worth getting right, because they explain everything else in this dossier.
Hydro under CERC’s cost-plus regime works like a regulated bond. NHPC builds a dam, the regulator allows it to recover its costs plus a fixed 15.5% return on the equity portion of the project (“regulated equity”), plus incentives for plant availability and secondary energy. Once a station is commissioned and a tariff is granted, it throws off a near-guaranteed annuity for decades — fuel is free (it’s water), so operating margins are enormous (FY26 OPM ~45%, and the operating-only quarters run 55–60%). The catch: a hydro project takes 8–12 years to build, swallows capital the whole time, and earns nothing until it’s commissioned. So NHPC’s reported returns are structurally depressed not because the business is bad, but because a huge slug of its capital is parked in half-built dams earning zero.
The numbers make this concrete. As of FY26, NHPC carries roughly ₹34,744 Cr of capital-work-in-progress (down from ₹50,601 Cr a year earlier — because Subansiri and Parbati-II just moved from CWIP into operating assets, which is the whole story of this year). Regulated equity — the base its allowed return is calculated on — is ₹18,309 Cr today and management guides it to ₹30,672 Cr by end-FY27 as the under-construction fleet commissions. That ~₹12,000 Cr of regulated-equity growth, earning 15.5%, is the engine.
Revenue mix is ~95% hydro generation, with a thin and growing sliver of solar and a consultancy/project-management business. Customer concentration is the discoms (state distribution utilities) — historically a receivables headache, though much improved (debtor days collapsed from ~169 to ~83). Geographic concentration is heavy in the Himalayas and the Northeast — J&K, Himachal, Sikkim, Arunachal — which is precisely where the cheap hydro is and where the geological and climate risk lives.
3. Management & promoter quality
The promoter is the Government of India (67.4%), and NHPC is a Navratna — meaning more operational and investment autonomy than an ordinary PSU. The judgment here splits cleanly into two halves.
The execution record on long-gestation hydro is genuinely mixed-to-poor — and that’s the central fact about this management. Hydro is brutal, and NHPC’s flagship projects are textbook cautionary tales. Subansiri Lower (2,000 MW) was conceived two decades ago and sat stalled for years on environmental litigation and NGT stays before NHPC finally started commissioning units in FY26 — a roughly 15-year slip from original intent. Parbati-II (800 MW) dragged for over a decade through geological surprises and a head-race-tunnel collapse. The Power Ministry has repeatedly hauled NHPC officials into review meetings over execution delays (Deccan Herald). Teesta-V was knocked offline entirely by the October-2023 Sikkim glacial-lake flood and only restarts in June 2026; the same flood silted up TLDP-III and TLDP-IV. Sawalkote has been “decades of delay” and is only now inching forward (Greater Kashmir). If you are underwriting NHPC, you are underwriting a builder whose projects routinely run years and thousands of crores over.
The mitigant — and it’s a real one — is the regulatory backstop. Because the regime is cost-plus, CERC allows time-and-cost overruns into the tariff base so long as they’re “beyond management control” (geology, design changes, force majeure). Management was explicit on the call: “cost overrun is very inherent in any hydropower project… all those increases are taken care of as per the regulations… we do not have any issues on that front.” In other words, the cost of NHPC’s poor punctuality is largely socialised onto the tariff (i.e. onto discoms and eventually consumers), not onto shareholders — up to the point where a delay destroys the project’s economics or CERC disallows a chunk as controllable. That’s a soft cushion, not a hard one, but it’s why decades of overruns haven’t wrecked the equity.
Capital allocation is what you’d expect from a PSU: a steady, healthy dividend (payout ~53% over the period; ₹1.61/share for FY26), no empire-building outside the core, but also no per-share value heroics — the share count is essentially flat and book value compounds slowly. Governance flags to weigh even-handedly: (a) the government extracts dividends and uses NHPC as an instrument of national hydro/RE policy, so project selection isn’t always purely IRR-driven (some Northeast and strategic-border projects are taken on partly for nation-building reasons); (b) OFS overhang — the government cut its stake from ~70.95% to 67.40% in FY24 via offer-for-sale, and can do so again to meet disinvestment targets, which is a recurring supply risk on the stock; (c) the FY26 tax line is heavily distorted by a one-off deferred-tax reversal (more below), the kind of accounting noise PSUs carry. Net: capable enough as a regulated operator, unreliable as a builder, and ultimately steered by an owner whose objectives are broader than your share price.
4. Financial trends
The headline tension: a high-margin, cash-generative operating business sitting on top of structurally low returns — and FY26 is the year that tension started to resolve as new capacity finally switched on.
| Metric | Value | Read |
|---|---|---|
| ROE | 9.3% (3yr ~8.7%) | Depressed — huge zero-earning CWIP drags it; below the 15.5% the operating assets earn |
| ROCE | 5.7% | Same story; capital trapped in half-built dams |
| OPM (FY26) | ~45% | Fell from ~52% — new commissioning costs (network charges, insurance, D&A) front-loaded |
| Revenue 5yr CAGR | ~3.8% | Stalled — the price of a decade of capex with nothing commissioning |
| PAT (FY26) | ₹3,766 Cr (+25% YoY) | But flattered by a one-off ~₹900 Cr deferred-tax credit |
| Net debt | Borrowings ₹52,327 Cr (vs ₹39,557 Cr FY25) | Rising fast to fund the pipeline |
| Dividend payout | ~43–53% | Reliable annuity-style return to holders |
Why the low ROE — the one thing to internalise. NHPC’s operating hydro stations earn the full regulated 15.5% on equity. But group ROE is only ~9% because the denominator (total equity, ~₹41,400 Cr of net worth) is far larger than the slice currently earning a return (₹18,309 Cr of regulated equity). The gap is the dam capital sitting idle in CWIP. This is not a quality problem — it’s a timing problem. As CWIP converts to regulated equity (the ₹18,300 → ₹30,672 Cr jump guided into FY27), the earning base grows ~67% and ROE should mechanically lift toward the regulated ceiling. That’s the entire bull thesis in one sentence.
Growth has been miserable on a 5-year look (3.8% revenue CAGR) precisely because this was the building decade — but FY26 revenue jumped 12% to ₹11,615 Cr as Subansiri, Parbati-II and Karnisar solar began contributing, and FY26 generation rose 16% to 29,619 million units. That’s the inflection beginning.
Cash flow tells the capex story bluntly: operating cash flow is healthy (₹3,294 Cr FY26, and CFO/operating-profit consistently 80–165%), but free cash flow is deeply negative (–₹8,274 Cr FY26) because capex ran ₹13,689 Cr. NHPC is funding a build-out far larger than its internal generation, hence borrowings climbing past ₹52,000 Cr. Interest cover is comfortable for now (operating profit ~₹5,200 Cr vs interest ₹1,423 Cr), but leverage is the trajectory to watch.
On screener’s auto pros/cons — interpreting, not parroting: the “poor 3.8% sales growth” and “low 8.7% ROE” are both real and both artefacts of the build phase rather than signs of a broken business; the “tax rate seems low / earnings include ₹2,057 Cr other income / might be capitalising interest cost” flags are all genuine PSU-accounting caveats — FY26 PAT in particular is inflated by the deferred-tax one-off and should be normalised down by ~₹900 Cr before you compare it to anything. The improving debtor days (140 → 83) is a clean positive — discom payment discipline under the Late Payment Surcharge rules is working.
4-note (lens)
NHPC is a regulated utility, so the right yardstick is not multiple expansion off earnings growth. Judge it on: (1) regulated-equity growth — the ₹18,300 → ₹30,672 Cr path and whether projects actually commission on the guided dates; (2) plant availability factor (PAF) — the incentive driver, which slipped to 74.75% in FY26 (or ~80% ex-Teesta-V) and needs to recover; (3) receivable cycle — improving, watch it hold; and (4) execution discipline on the under-construction fleet. The allowed RoE is capped at 15.5% — you cannot wish that higher; the upside is in growing the base that earns it and shrinking the idle CWIP drag.
5. Latest quarter
Q4 & FY26, reported 15 May 2026; concall 18 May 2026.
Numbers. Q4 FY26 revenue ₹2,816 Cr (+20% YoY) on higher generation from newly commissioned stations; consolidated Q4 PAT ₹1,549 Cr (+68%), FY26 PAT ₹3,766 Cr (+25%). But the profit jump is mostly optical — management was candid that a ~₹900 Cr net deferred-tax reversal (₹1,156 Cr gross, from opting into the 25% Sec-115BAA regime as MAT credit sunsets in FY27) is baked into reported PAT. Strip it out and underlying growth is modest. Q4 OPM optically cratered to 23% and a ₹274 Cr pre-tax loss appeared — driven by front-loaded finance cost, depreciation and “other expenses” (network charges, insurance, provisions) that switched on as Parbati-II / Subansiri / Karnisar moved from CWIP to live assets. The –666% tax line is the same DTL noise. Dividend: total FY26 ₹1.61/share (₹1.40 interim + ₹0.21 final).
What management said. The whole call orbited around the tariff lag on the just-commissioned giants. NHPC is currently booking Subansiri and Parbati-II revenue at a conservative 80% of the filed Annual Fixed Cost, and billing at only 75% until CERC issues final tariff orders — so there’s an under-recovery of ~₹450 Cr (₹300 Cr Parbati-II + ₹150 Cr Subansiri) sitting un-booked, recoverable with interest from the date of commissioning once orders land. Parbati-II’s order was expected by ~30 June 2026; Subansiri’s interim order pending, final maybe ~6 months out. Translation: reported profit on these assets is artificially suppressed today and should true up over the next few quarters — a real near-term catalyst, distinct from the noise. Notable quote on cost-plus comfort: “this being a cost plus, everything is allowed by CERC… whatever cost beyond our control, that is definitely allowed.” On Parbati-II’s weak FY26 (a ₹150 Cr full-year loss): a June-2024 cloudburst halved generation (1,642 vs 3,125 MU design), so it under-recovered — at full design energy it’d have made ~₹150 Cr profit.
6. What’s happening now
The live wire is commissioning — after a decade of building, the dams are finally switching on, fast.
- HARD — Subansiri Lower (2,000 MW): Four units (1,000 MW) commissioned by May 2026, a fifth (1,250 MW total) boxed-up/commissioned by mid-June 2026; remaining units phased to ~December 2026 / March 2027. Anchor of the FY27 growth (Renewable Watch, Indian Masterminds).
- HARD — FY27 commissioning slate: management guides ~2,994 MW of hydro into FY27 — balance Subansiri, Rangit-IV (120 MW, 96% done), Pakal Dul (1,000 MW, 80%), Kiru (624 MW, 82%) — plus ~1,190 MW of solar. Capacity heading toward ~13 GW by FY27, a ~59% jump (Energy Watch).
- HARD — new investment approvals (Feb–Apr 2026): Board sanctioned Uri-I Stage-II (240 MW) and Dulhasti Stage-II (260 MW) in J&K; CCEA approved the ₹26,070 Cr Kamala project (1,720 MW) in Arunachal; Dibang (2,880 MW) dam package (₹14,446 Cr) awarded April 2026. Teesta-V restarts June 2026.
- SOFT — solar push: 1,000 MW CPSU Tranche-II under build (300 MW Bikaner live; 100 MW AP + 600 MW Gujarat by Dec-2026); ~1,000+ MW solar expected to commission in CY26; ~23 GW tendered as REIA, ~7 GW PPAs signed so far.
- SOFT — pumped-storage optionality (the RE-era story): 18 GW of PSPs at DPR/PFR stage across seven states; construction on Indira Sagar–Omkareshwar (640 MW) PSP targeted to start in FY27 — NHPC’s first. PSPs are the strategic call option: as solar floods the grid, daily storage becomes scarce and valuable, and NHPC’s reservoirs + balance-sheet are a natural fit. None is generating yet — this is years out and entirely pipeline.
Ties straight to the atlas tailwind (storage scarcity in a solar-heavy grid, government push on hydro/PSP) and the atlas headwind (Himalayan climate/geology risk, discom payment discipline, long gestation).
7. Expectations baked in
At ₹75.8 the stock trades ~1.9x book and ~20x trailing earnings — but trailing earnings are the wrong anchor (one-off tax credit, suppressed tariffs). The market is clearly pricing the regulated-equity inflection, not the past. On P/B, today’s 1.9x sits well above NHPC’s own 5-year average of ~1.4x and miles above its 2018–22 median of ~1.1x and its 2021 trough of 0.74x (smart-investing.in) — so the stock has already re-rated on the commissioning story; it is not cheap against its own history.
What’s implied. Regulated equity grows ~67% (₹18.3k → ₹30.7k Cr) by FY27; at a 15.5% allowed return plus incentives and tariff true-ups, regulated PAT could scale toward ~₹4,500–5,000 Cr over a couple of years. At ~1.9x book the market is essentially paying for that base to fill in and for the PSP/solar optionality to be worth something — a fairly demanding ask for a builder with NHPC’s punctuality record. Sell-side is split but constructive: Elara, for instance, values it on 2.0x FY28E regulated equity and sees ~24% upside, explicitly a regulated-equity-growth re-rate, not an earnings-multiple call (Business Today).
Versus peers: NHPC’s ~21x trailing P/E is a ~27% discount to its broader power-peer median and dramatically below the absurd RE-developer multiples (NTPC Green ~130x, Adani Green ~100x) — but those aren’t apples-to-apples; the honest comparable is SJVN, the other hydro PSU, which trades richer (~45x) on a smaller, lumpier base. NHPC is priced as a utility with embedded growth — somewhere between a pure annuity and a developer — which is the right box, but at a multiple that already assumes the inflection delivers roughly on time.
8. Rerating signals — up vs down
| Could re-rate UP if… | Could re-rate DOWN if… |
|---|---|
| CERC issues Parbati-II (~Jun ‘26) and Subansiri tariff orders at ≥ filed AFC, unlocking the ~₹450 Cr under-recovery with back-interest | Tariff orders come in below the filed 80% booking, forcing a write-back and signalling lower normalised RoE on the new assets |
| Subansiri + Pakal Dul + Kiru commission on the guided FY27 dates → regulated equity hits ₹30,672 Cr and group ROE mechanically lifts toward ~12–13% | Execution slips again (NHPC’s base case historically) — units drag into FY28+, CWIP stays idle, ROE stays stuck near 9% |
| First PSP (Indira Sagar–Omkareshwar) reaches financial close / construction start, putting a real number on the 18 GW storage option | Another Himalayan climate event (à la Teesta-V Oct ‘23) knocks a major station offline; insurance/restoration drag recurs |
| PAF recovers toward ~80%+ as Teesta-V/TLDP silt issues clear → higher incentive income | PAF stays depressed (silt, MIV repairs, weak hydrology in an El Niño year) — incentive income and generation disappoint |
| Discom receivables keep tightening; clean LPS-rule collections continue | Leverage keeps climbing past ₹52k Cr on negative FCF; interest cover compresses if commissioning lags revenue |
| Solar/REIA PPAs (13 GW pending) convert to signed offtake at workable IRRs | Government OFS to meet disinvestment targets dumps supply on the stock (precedent: FY24 stake cut 70.95% → 67.40%) |
9. Conviction texture
The bull case in its strongest form is almost mechanical, and that’s its appeal: NHPC spent a decade and tens of thousands of crores burying capital in dams that earned nothing, and FY26 is the year that capital starts paying. Regulated equity is guided up ~67% in eighteen months; the allowed return on it is a near-guaranteed 15.5%; the tariff true-ups on Subansiri and Parbati-II are a visible near-term catalyst with back-interest attached; and behind it sits an 18 GW pumped-storage pipeline that is exactly the asset a solar-saturated Indian grid will be short of by 2030. If you believe the commissioning dates, the ROE inflects from ~9% toward the low-teens almost arithmetically, and you’re buying a government-backed inflation-linked annuity in mid-build.
The bear case in its strongest form is just as clean: this is a company whose single most reliable historical trait is missing its own deadlines. Subansiri took ~15 years. Parbati-II took over a decade and a tunnel collapse. Teesta-V got erased by a flood. Sawalkot has been “imminent” for a generation. Every catalyst in the bull case is a date, and NHPC’s dates are soft. Meanwhile FY26’s headline profit growth is half mirage (the deferred-tax one-off), free cash flow is –₹8,000 Cr, borrowings are vaulting past ₹52,000 Cr, and the stock already trades at 1.9x book — well above its own ~1.4x average — so the market has pre-paid for an inflection that this management has a poor record of delivering on schedule. And sitting over all of it: a promoter who can issue an OFS whenever the fiscal year needs the cash.
What the evidence actually supports is somewhere in between, and refreshingly un-mysterious. The screener pros/cons, read properly, all reduce to the same truth — the low ROE, the stalled 5-year growth, the noisy tax line are build-phase artefacts, not rot; the healthy dividend and improving receivables are real. The concall supports both the catalyst (tariff true-ups, on-time-ish Subansiri units) and the caution (under-recovery, PAF slip, the management’s own breezy “cost overruns are inherent, CERC pays for it” — which is comforting for shareholders and quietly damning about discipline). The thing that decides which way it breaks is boringly singular: does the under-construction fleet commission roughly on the guided FY27 dates, and do the CERC tariff orders land at or above the filed level? If yes, the annuity fills in and the re-rating is justified. If the dates slip — the historical base rate — you’ve bought a slow-compounding regulated utility at a growth-utility price, and you wait. No verdict here; just know that with NHPC you are, more than with almost any other utility, underwriting the calendar.
Sources: local screener snapshot (2026-06-20) and Q4 FY26 concall transcript (18 May 2026); Business Standard, Indian Masterminds, Energy Watch, Renewable Watch, Business Today / Elara, smart-investing.in P/B, Greater Kashmir, Deccan Herald. No buy/sell/hold.