Enviro Infra Engineers is a turnkey EPC and O&M provider in India's water and wastewater treatment sector, with a growing renewable energy business spanning solar, wind, and battery energy storage. As of August 2026, its total order book stands at approximately INR 6,721 crores, split between water execution (INR 2,696 crores), water O&M (INR 998 crores), renewable execution (INR 1,948 crores), and renewable O&M plus IPP (INR 1,079 crores). The company earns most of its revenue from government-funded municipal and industrial treatment projects, with Q1 FY27 revenue of INR 359.2 crores, of which water contributed 71% and renewables 29%. The niche is competitive, but Enviro differentiates through in-house execution, advanced technologies like ZLD and membrane bioreactors, and a growing presence in complex projects. Its water segment EBITDA margin of 21-22% is above typical industry levels, reflecting pricing power and cost discipline, though blended margins are lower due to the renewable mix.
The durability of Enviro's economics rests on qualification cycles and switching costs inherent in long-term O&M and HAM contracts. The company has an O&M order book of nearly INR 1,000 crores for water and over INR 1,079 crores in renewable O&M and IPP, with contracts spanning 5-15 years in water and up to 25 years for IPP. These annuity-like revenue streams provide visibility beyond the immediate EPC cycle. Additionally, the company's first-mover position in BESS, with four NTPC projects totaling 930 MWh worth about INR 1,070 crores, positions it to capitalize on India's 90 GW battery storage pipeline, though execution risk remains given the nascent nature of this segment. Its acquisition of Suyog Urja adds wind EPC capability, but the integrated renewable value chain also brings lower margins (15-18% EBITDA) compared to water.
The inflection point is the conversion of the massive order book into revenue over the next two fiscal years. Management guides FY27 consolidated revenue of INR 2,000 crores and PAT of INR 260-270 crores, with a blended EBITDA margin of 19-20%. The execution order book of roughly INR 4,800 crores is expected to be completed over FY27 and FY28, implying FY28 revenue of INR 2,500-2,600 crores on a conservative basis. The company expects a back-loaded quarterly trajectory with about 40% of revenue in Q4, as the NTPC BESS project's material procurement commences in Q3 FY27. By mid-FY28, renewable energy could contribute over a third of revenue, up from 29% in Q1 FY27, as the 930 MWh BESS and 400-450 crores of wind EPC revenue from Suyog Urja ramp up. Meanwhile, the core water business is expected to sustain 21-22% EBITDA margins, with the treated water reuse segment adding a high-value revenue stream.
Management's track record has been mixed. In FY26, the company guided 35-40% revenue growth but delivered only 7.5% growth, with a final revenue of INR 1,145.6 crores versus the INR 1,350-crore target. It also lowered its EBITDA margin guidance from 22-24% to 21-22% citing cost pressures. However, on the August 2026 call, management reaffirmed the FY27 revenue and PAT guidance, stating it is maintainable even if no new orders come, and reported Q1 FY27 revenue growth of 49% YoY. The company has made capital allocation commitments, including INR 311 crores for Suyog Urja with tranches tied to KPIs, and is investing in BESS and solar IPP assets. It has also expanded its management team with dedicated business heads and a 250-professional renewable division. Yet, working capital remains bloated at 166 days, and the company expects improvement by September, though it has made no guarantees on cash flow. The key risk is that management has missed guidance before, so execution discipline is paramount.
The earnings path is visible: with a 6,721-crore order book, FY27 revenue of INR 2,000 crores would represent a 75% jump from FY26's INR 1,145.6 crores, and FY28 revenue of INR 2,500-2,600 crores would imply a further 25-30% increase. To achieve this, the company must convert its execution order book on schedule, particularly the BESS projects and the 16 MW Balangir solar balance, and secure at least INR 2,500 crores in new orders in FY27. The single largest falsifier is a repeat of the FY26 slippage, where bid finalization and payment delays from government clients forced guidance cuts. Also, input cost inflation, especially for lithium-ion batteries, could compress margins; management has deferred battery procurement until prices stabilize. If the company delivers on its FY27 guidance, the valuation will reflect a profitable scaling story, but if order conversion or cash collection stumbles, the margin and growth narrative weakens. The tension between strong order book and past execution miss resolves only through consistent quarterly delivery.
companyname: Enviro Infra Engineers Limited ticker: EIEL sector: Water & Wastewater Treatment, Renewable Energy Enviro Infra Engineers Limited (EIEL) is a turnkey EPC and operation & maintenance contractor for water and wastewater treatment infrastructure in India. The company designs, builds, and operates Sewage Treatment Plants (STPs), Common Effluent Treatment Plants (CETPs), Water Treatment Plants (WTPs), and sewerage networks for government authorities and municipal bodies across multiple ...
Read the full report →new product segment, order book surge, acquisition inorganic, management upgrade
FY27 revenue growth guided at INR2,000 crores driven by order book conversion
Guidance downgradedmixed
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