Inox Green — an annuity story the income statement doesn't yet tell

The Pulse

Inox Green is the company that keeps wind turbines running after Inox Wind sells them — India’s only listed pure-play renewable operations-and-maintenance (O&M) business, and the recurring-revenue arm of the Inox group. On paper it’s a lovely model: 5-to-20-year service contracts on a growing fleet, ~50% margins, an almost-debt-free balance sheet after a hard deleveraging, and three straight profitable years. The story management sells is an annuity flywheel: as the group builds more wind and solar, Inox Green inherits the O&M, now scaled to 13-plus GW including 6.5 GW bought cheaply from bankrupt rivals. The trouble is the income statement doesn’t yet back the story. Sales have crawled ~10% over five years, the core O&M segment actually slipped to a small operating loss in recent years, returns are thin (ROE 5.6%, three-year average barely 3%), and FY26’s ₹103 crore profit leans on ₹144 crore of non-operating “other income” against just ₹23 crore of operating profit. The whole case now rests on one number: management’s promise that FY27 EBITDA jumps to “upwards of ₹600 crore” once the acquisitions fold in — roughly triple FY26. At 68x earnings and 4x book, the market has already paid for that leap to land.

The Business

When a wind farm is commissioned, someone has to keep the turbines spinning for the next two decades — monitoring them, servicing the gearboxes and blades, maintaining the shared substation and evacuation infrastructure, and squeezing out maximum uptime. That after-market is Inox Green’s business. It signs long-term O&M contracts (5–20 years), typically earning ₹8–10 lakh per MW a year on wind (with ~5% annual escalators) at roughly 50% margins, and a thinner ~₹2 lakh per MW on solar. Machine availability runs ~96.5%. It calls itself India’s only listed pure-play renewable O&M provider, and it’s a subsidiary of turbine-maker Inox Wind (~56%), sitting inside the broader Inox GFL renewable group.

The model’s appeal is its stickiness and its captive feedstock. Every turbine the parent installs is a candidate for a multi-decade O&M annuity; the group’s solar arm hands Inox Green exclusive solar O&M; and the group’s IPP ambitions (Inox Clean Energy building 14 GW by FY29) promise a steady pipeline of new assets to service. On top of organic growth, Inox Green plays consolidator — buying up distressed and orphaned O&M books from OEMs that went bankrupt, most recently two wind fleets totalling 6.5 GW that should lift its managed portfolio past 13 GW. It has also been reshaping itself to look better: exiting its own power-generation assets to go asset-light (fixed assets collapsed from ₹704 crore to ₹15 crore in a year), and demerging the capital-heavy substation/evacuation business into a separately-listed entity (Inox Renewable Solutions), which strips ~₹1,000 crore of gross block and ~₹50 crore of annual depreciation off its books and mechanically lifts returns.

What should make this distinctive is the combination of annuity economics and captive supply. What the numbers actually show is more sobering: revenue has been flat-to-lumpy (₹250 crore in FY23 to ₹281 crore in FY26), and the core O&M segment slipped into a small operating loss in FY25 even as its revenue grew ~39% — a margin collapse the annual report never explains. So the moat is real in theory and unproven in the financials. The annuity hasn’t yet shown up as compounding growth or strong returns.

How Management Thinks

Inox Green doesn’t really have its own public personality — it’s run on joint earnings calls with the parent, dominated by the group’s executive director Devansh Jain, with the same assertive, group-narrative style described in the Inox Wind note. The pitch is that Inox Green is the “exponential growth” annuity engine of the group, the largest renewable O&M platform in India, riding the trend of big developers outsourcing the maintenance they used to do themselves.

The stated strategy is coherent and disciplined-sounding: grow organically off the captive group pipeline, acquire distressed O&M books but only “through a strict valuation framework to ensure value accretion,” diversify from wind into solar and hybrid, and clean up the balance sheet (deleverage, exit power generation, demerge the substation assets) to lift returns. The capital-allocation moves genuinely have improved the balance sheet — borrowings down from ₹1,411 crore to ₹88 crore, interest from ₹65 crore to ₹9 crore — and that deleveraging is the cleanest positive in the whole picture. No dividend yet, deferred until the acquisitions consolidate, which is defensible.

The candour concerns are the same family trait, and they matter more here. Management leans heavily on the headline EBITDA and the FY27 promise while the quality of current earnings is weak — and when an analyst pressed, management conceded the true core O&M margin is closer to ~45% than the ~50% headline once you strip out ~₹40 crore of acquisition-related “other income.” A large chunk of reported profit is non-operating, the group dependence is heavy and rising (customer concentration on related counterparties is increasing, and the annual report explicitly flags “third-party transaction risk” and conflict-of-interest exposure), and granular operating metrics get deflected. The right posture for a reader is to treat the deleveraging as real and demonstrated, and the ₹600-crore FY27 EBITDA as a promise to be verified, not a fact.

Where It’s Going

The forward case is almost entirely about the step-change FY27 is supposed to deliver. As the two acquired 6.5 GW wind-O&M fleets consolidate (accruing from April 2026) and the substation demerger removes the depreciation drag, management guides EBITDA to “upwards of ₹600 crore” — against ₹210 crore in FY26 — and says it should convert almost fully to cash given near-zero depreciation, near-zero finance cost, and a ~₹700 crore accumulated tax shield. If that lands, the optics transform: a high-margin, cash-generative, low-tax annuity business at genuine scale, with returns finally rising as the asset-light, demerged structure takes hold. The longer runway is real too — India is expected to add ~80 GW of wind, 250+ GW of solar and meaningful battery storage by 2032, all of which needs servicing, and Inox Green wants to be the annuity layer underneath that capex wave.

The tensions are equally clear. First, the leap from ₹210 crore to ₹600 crore EBITDA is large and depends on acquisitions consolidating cleanly and the acquired portfolios performing — execution risk, not a given. Second, the core organic engine has been weak (flat sales, a segment that dipped into operating loss), so the growth is acquisition-led rather than organic-momentum-led. Third, the heavy reliance on group and related-party flows means the business’s fortunes are tied to the parent’s execution (itself patchy) and to fair intra-group dealing. And stretched receivables (216 debtor days) sit under it all.

The Four Checks

Quality & moat (gate): A structurally attractive model whose financials don’t yet prove the moat. Recurring multi-decade O&M with high gross margins, switching-cost stickiness, captive group feedstock, and consolidator scale is a genuinely good type of business — and Inox Green’s pure-play listed status and group pipeline are real advantages. But the actual record undercuts it: flat revenue, a core segment that slipped to an operating loss, thin returns, and profit propped by other income. So the gate is, honestly, only half-passed — the moat is credible in theory but not yet visible in the numbers.
Returns on incremental capital & runway: Low today, large runway, transformation promised not proven. ROCE is 8.4% and ROE 5.6% (three-year ROE ~3.2%) — low for a supposedly asset-light annuity. The runway is large (India’s renewable buildout plus the group pipeline plus distressed-book M&A). The FY27 guidance, if delivered, would lift returns sharply — and the substation demerger mechanically helps — but that’s a forward claim resting on acquisitions performing, not a demonstrated return on capital already deployed.
Capital allocation for the stage: Sensible in shape; watch the related-party plumbing. The deleveraging (₹1,411 crore to ₹88 crore of debt), the asset-light exit from power generation, the value-lifting substation demerger, and a stated valuation discipline on M&A are all rational for the stage, and no dividend is correct while reinvesting. The caveats: a meaningful slice of reported profit is non-operating “other income,” and the business runs on heavy group/related-party dependence that the company itself flags — minority holders rely on those transactions being struck fairly.
Price: Very demanding — pricing the promise. At ₹176 the stock trades at ~68x earnings and ~4.1x book for a business currently earning ~5.6% on equity, with flat sales and other-income-dependent profit. That multiple is only defensible if the FY27 ₹600 crore EBITDA leap actually materialises and sustains — i.e. the price already capitalises the transformation. If the step-change lands, the multiple compresses quickly; if it slips, there’s little current economics underneath to cushion it. (Characterisation only — no trade recommendation.)

Sources

Concall transcripts read: Q1 FY26 (1 Sep 2025), Q2 FY26 (14 Nov 2025), Q3 FY26 (13 Feb 2026), Q4 FY26 (29 May 2026) — all joint Inox Wind + Inox Green calls.
Annual reports read: FY23, FY24, FY25 (trimmed sections).
Snapshot: screener.in (consolidated), fetched 2026-06-09 19:14 IST.
Research subfolder: vault/Sources/Earnings/Inox Green Energy Services Ltd/ (digests, transcripts, snapshot — not published).
Gaps / caveats: The annual-report extracts were thin and OCR-garbled — the CEO letter and MD&A narrative largely didn’t survive, so strategy and management reads rest mainly on the four joint concalls; the AR sections supplied the segment-revenue tables (showing the core O&M margin compression), the deleveraging, the consolidation strategy and the related-party-risk disclosures. Portfolio figures vary in the sources (a 3.35 GW risk-table figure vs 5.1 GW / 13+ GW elsewhere) depending on whether wind-only managed fleet or total contracted/consolidated capacity is meant. FY26 profit is materially flattered by ₹144 crore of other income.