Indian Oil Corporation Ltd. makes a corporate announcement

The 100 MW order is strategically aligned with IOC’s renewable build-out, but it is a relatively small tranche of the stated pipeline. The order is now clarified as having been awarded by Terra Clean Ltd., IOC’s wholly owned renewable-energy subsidiary, rather than directly by IOC; it covers turnkey execution and 10-year post-commissioning O&M. ^{[1] [2]}

Capacity alignment

Notes: † Derived using 100 MW = 0.1 GW and the cited capacity figures.

The key interpretation is that the 100 MW project should be viewed as an execution order within Terra Clean’s 5.3 GW development roadmap, not as evidence that IOC has already commissioned an additional 100 MW. It represents 10% of the 1 GW currently under active development, or 1.89% of the broader 5.3 GW programme. The comparison with IOC’s 258.06 MW operating portfolio is only a scale reference; the order is not yet an operating asset.

Renewable-energy capital commitment

The renewable-specific committed amount identifiable in the disclosures is Rs 2,389.75 Crores, calculated as:

• Previously approved Terra Clean equity investment for 1 GW: Rs 1,303.75 Crores ^[6]
• Additional approved equity investment for 4.3 GW: Rs 1,086 Crores ^[6]
• Total committed equity investment: Rs 2,389.75 Crores — derived from the two amounts above.

This should be described precisely as IOC’s committed equity investment in Terra Clean, rather than the all-in project Capex for the renewable assets. The FY26 Annual Report reports total company Capex of Rs 32,405 Crores and cumulative Capex of over Rs 2.5 lakh Crores across more than 170 projects, but does not separately disclose an all-in renewable-energy project Capex total. ^[7] Therefore, Rs 2,389.75 Crores is the closest renewable-specific committed capital figure, not a separately reported total construction cost for the 5.3 GW portfolio.

_Scope note: this comparison also included Inox Wind Ltd. (INOXWIND), which the answer above does not cover. Ask about any of them for a full side-by-side._

IOC’s currently installed wind-and-solar capacity is 258.06 MW, comprising 167.60 MW of wind and 90.46 MW of solar, as reported in its FY2025-26 annual report. ^[4] The separate ~180 MW solar installation figure at retail outlets is disclosed independently and should not be added to this portfolio total. ^[8]

The 100 MW project is not yet installed capacity. It is a turnkey order placed by Terra Clean Ltd., IOC’s wholly owned subsidiary; the order was initially described as an IOC order and subsequently clarified as a Terra Clean order. ^[1] Therefore, the current operating base remains 258.06 MW.

Capacity impact if commissioned

The post-project figure of 358.06 MW is derived, assuming the full 100 MW is commissioned and added to IOC/Terra Clean’s renewable portfolio. The project includes turbine supply, EPC, execution and 10-year post-commissioning O&M, but the disclosed order does not establish that commissioning has occurred. ^[2]

Progress against stated milestones

IOC-linked company material cites a 3 GW renewable-energy milestone for 2025 and a 35 GW milestone for 2030. ^[3]

• Against 3 GW, the current 258.06 MW represents 8.60% of the milestone. If the 100 MW is commissioned, this would rise to 11.94%—an improvement of 3.33 percentage points, derived from the reported capacity and the stated target.
• Against 35 GW, the current base represents 0.74% of the milestone. The commissioned-project scenario would increase this to 1.02%, with the project itself contributing only 0.29% of the 2030 target.

Implication: the order is operationally meaningful relative to IOC’s existing installed renewable base, adding nearly 39% to it if delivered. However, it is still a small step toward the company’s multi-GW ambitions: it is a contracted pipeline addition, not yet an installed-capacity achievement. Execution, grid connectivity and commissioning remain the gating factors; IOC’s annual report separately notes Terra Clean’s development of 1 GW and grid connectivity secured for 2.65 GW, which indicates a broader pipeline beyond this single 100 MW project. ^[9]

The 100 MW project implies capital intensity of Rs 7.55 Crores per MW, versus approximately Rs 10.10 Crores per MW for IOC’s existing renewable portfolio on the closest disclosed balance-sheet proxy. That puts the new project about Rs 2.55 Crores per MW, or 25.25%, below the implied average.

• New project: Rs 755 Crores / 100 MW = Rs 7.55 Crores/MW. The contract is turnkey and includes turbine supply, EPC, execution and 10 years of post-commissioning O&M, so this is an all-in contract-value measure rather than pure construction capex. ^[2]
• Existing-asset proxy: IOC reported Rs 2,606.74 Crores of assets in “Other Business Activities” and renewable capacity of 258.06 MW as of FY26, implying Rs 2,606.74 Crores / 258.06 MW = approximately Rs 10.10 Crores/MW. ^{[10] [4]}
• Relative comparison: Rs 7.55 Crores/MW is 74.75% of the implied existing-asset average, or 25.25% lower.

The comparison is directional rather than strictly like-for-like. IOC does not separately report a balance-sheet carrying value for wind and solar; “Other Business Activities” also includes oil and gas exploration and explosives/cryogenic operations. ^[10] Further, the balance-sheet figure is a carrying value after depreciation and impairment, while the project figure includes long-term O&M services. IOC also recognised a windmill impairment loss linked to capacity-utilisation factors, which may depress the existing carrying-value denominator. ^[11]