Waaree Renewable Technologies is a solar construction company - it designs, buys the parts for, and builds entire solar power plants for other people, then stays on to run them. It was born from a pivot: originally a small consultancy and power generator called Sangam Renewables, it was acquired by India’s largest solar module maker, Waaree Energies, in 2019, and in 2021 the group carved out a dedicated EPC (Engineering, Procurement and Construction) division to focus purely on building solar projects for others. The recurring approach is an asset-light, selective one - it owns no factories, buys everything it needs from suppliers, and bids carefully for contracts where it can control risk, preferring to be the trusted builder rather than the owner of the power plants.
Business segments
Two engines at different stages - a large-scale solar construction business that is the company’s core, and a small but growing fleet of power plants it owns and operates itself - both fed by the parent group’s module supply and credit strength.
1. Solar EPC: building power plants for everyone else
The company takes a solar project from a patch of land to a working power plant, earning a fee for the whole job - it is a construction and project-management business, not a manufacturer.
- Full-cycle builder - it handles everything from the initial feasibility study, land identification, and government permits, through designing the electrical and civil systems, buying all the components, constructing the plant, and finally testing and commissioning it. This means a customer signs one contract and gets a working power plant.
- Buys, doesn’t make - it operates an asset-light model with no manufacturing plants of its own, procuring every component - modules, inverters, structures, cables, transformers - from suppliers, with a three-stage quality check at the supplier’s factory before shipment. When modules are needed, it can buy them from its parent Waaree Energies at arm’s length or from third parties, depending on what the customer wants.
- Selective about what it builds - management deliberately limits exposure to very large, high-risk projects because smaller ones carry less exposure to delays from commodity price swings and have more predictable margins. The company calls EPC a “long-haul business” where quarterly execution volumes are hard to predict precisely because of the supply-chain coordination required.
- Scale that wins more work - it has cumulatively commissioned over 5 GWp of solar projects, executed its highest-ever annual volume of 2,727 MWp in FY2026, and held an unexecuted order book of 2.83 GWp as of March 2026, including India’s largest single-location EPC order, a 2,012 MWp installation in Rajasthan. This track record makes it a bankable partner for lenders and large industrial customers like ArcelorMittal, Reliance Industries, and NTPC.
2. Operations & Maintenance: the steady income that follows construction
Once a plant is built, the company stays on under long-term contracts to keep it running at peak output - turning one-time construction relationships into recurring revenue.
- Keeps the electrons flowing - it manages a portfolio of 1.18 GWp of solar assets, promising over 99% plant availability and a performance ratio above 80%, which means the plants generate close to their theoretical maximum.
- Tech-enabled caretaker - services include remote monitoring, drone thermography to spot faulty panels, predictive maintenance analytics, and underground cable fault detection, so problems are found and fixed before they cause outages.
- Serves its own projects and others - the O&M division looks after plants it built for EPC customers, but also pursues third-party contracts, so the portfolio can grow even without winning new construction work.
3. Independent Power Producer: the company’s own small fleet of power plants
In a handful of cases, the company builds, owns, and operates the solar plant itself, selling the electricity under long-term contracts - this is a capital-deploying side business, not the main engine.
- Generates power and provides EPC services - it develops and owns solar generating assets, then signs long-term Power Purchase Agreements (PPAs) with creditworthy customers, earning revenue from the electricity sold rather than a construction fee.
- Small but growing - as of early 2026, it had 54.82 MWp of operating IPP assets and was setting up another 227.10 MWp, including a 41.6 MW plant in Tamil Nadu funded with its own capital.
- A different risk profile - under the RESCO model, it installs and finances the system on a customer’s site and sells them the power, tying up its own money in assets that depreciate over 25 years, so it only signs PPAs with companies rated BBB+ or better.
Group structure and partners
The company sits inside India’s largest solar module manufacturing group, which gives it a sourcing umbrella and the balance-sheet backing to bid for big projects.
- Waaree Energies Limited, the parent, held 74.39% of the company as of FY25 and is rated CARE AA-, with roughly 26 GWp of module capacity and 5.4 GWp of cell capacity - making it the country’s number-one module maker.
- The parent’s credit rating and financial strength support the company in winning large EPC contracts by providing non-fund-based limits that customers require as bid security.
- The company has a web of wholly owned subsidiaries - Sunsational Solar, Sunsantional Energy, and Sunsational Power - all incorporated to generate and sell electricity or act as EPC contractors, giving it legal vehicles to ring-fence specific projects.
- In mid-2026, it agreed to acquire a \~55% stake in Associated Power Structures Private Limited, a power transmission and distribution company with a turnover of over INR 1,200 crores, marking a move beyond pure solar generation into the wider electricity infrastructure ecosystem.