India's Hydrogen Purchase Obligation for Fertilisers: Phase-Wise Targets, Covered Entities, and the Evolving Enforcement Architecture
India is building a Hydrogen Purchase Obligation (HPO) framework as part of the broader National Green Hydrogen Mission. This proposed mandate intends to prompt domestic fertiliser plants to source increasing percentages of their hydrogen feedstock from verifiable green sources. While the SIGHT programme supports the supply side, the HPO aims to secure demand. Together, these policies are designed to anchor India's core strategy for deep hydrogen decarbonisation. Here is how the regulatory obligation is expected to take shape.
Key Takeaways
- The Hydrogen Purchase Obligation acts as a proposed regulatory mandate led by the Ministry of New and Renewable Energy's National Green Hydrogen Mission. It is designed to require specific covered entities, primarily fertiliser plants and petroleum refineries, to fulfill a defined and escalating percentage of their total hydrogen consumption using green hydrogen generated by water electrolysis.
- The fertiliser sector represents a natural target for the HPO because these plants rank as India's single largest industrial hydrogen consumers alongside major refineries. Collectively, they consume approximately 3 million tonnes of hydrogen annually to drive ammonia synthesis. By converting even a minor fraction of this baseline demand to green hydrogen, the industry can create meaningful commercial volumes for early stage producers and justify scaling up domestic electrolyser manufacturing.
- Current industry discussions suggest the HPO Phase 1 targets will likely express green hydrogen mandates as a strict percentage of total hydrogen consumed. Highly anticipated trajectory models point to roughly 0.5 to 1.0 percent of total consumption in the initial years, potentially ramping toward a 5 percent benchmark by FY2027-28. At a sector consumption level of approximately 3 million tonnes per year, a 1 percent target translates directly to 30,000 tonnes of green hydrogen demand annually, which acts as a powerful commercial anchor.
- The SIGHT (Strategic Interventions for Green Hydrogen Transition) programme serves as the active, supply-side counterpart to the HPO demand mechanism. It extends production-linked incentives directly to green hydrogen producers to compress costs toward market competitiveness. SIGHT Phase 1 supports both electrolyser manufacturing and physical green hydrogen production, offering an incentive capped at Rs 50 per kg in Year 1, stepping down to Rs 40 per kg in Year 2 and Rs 30 per kg in Year 3. These incentives help bridge a substantial portion of the price gap separating green hydrogen from its conventional grey equivalent.
- The precise verification architecture for confirming HPO compliance remains under regulatory development. It is widely expected that fertiliser facilities will need to prove their green hydrogen procurement through formal chain-of-custody certificates issued by the producer. Regulators still need to decide whether this verification falls under MNRE designated agencies, BEE accredited ACVAs similar to the CCTS framework, or independent third-party auditors. Furthermore, stakeholders are actively debating whether the market will eventually support flexible book and claim certificates or demand strict physical delivery.
The Hydrogen Purchase Obligation operates as the demand creation engine within the National Green Hydrogen Mission's twin pillar strategy, which seeks to simultaneously build robust supply through SIGHT and generate mandatory market demand. Without the HPO in place, the early green hydrogen market would rely entirely on the voluntary procurement decisions of corporate industrial buyers. Historical data suggests voluntary off-takes often lack the immense scale required to drive down foundational electrolyser costs. Therefore, the HPO's mandatory demand aims to establish a reliable base load of commercial green hydrogen purchasing, making producer investments broadly bankable.
Targeting the fertiliser sector as the primary HPO candidate reflects the industry's structural characteristics. Fertiliser plants stand as massive, concentrated, and heavily documented hydrogen consumers. Crucially, they are also navigating integration into the Carbon Credit Trading Scheme (CCTS) compliance framework. For domestic urea producers, transitioning to green hydrogen procurement reduces the Scope 1 greenhouse gas emission intensity of the ammonia synthesis step, which could generate a valuable CCC surplus against their baseline. It is worth noting that while European CBAM policies apply to ammonia and select specialty fertilisers, India consumes the vast majority of its bulk urea domestically. This means CBAM is not the central driver pushing the Indian urea transition; rather, the pressure comes primarily from national subsidy economics and domestic CCTS requirements.
The phase-wise HPO target structure
| Scenario Compliance Year | Modelled HPO Target (% of total H₂ consumption) | Implied Green H₂ Volume (based on 3 MMT sector total) | Estimated Green H₂ Cost Premium (assuming Rs 200/kg gap) | Associated Regulatory Benefit |
|---|---|---|---|---|
| Year 1 (Initial) | ~0.5 to 1.0% | 15,000 to 30,000 t/yr | ~Rs 300 to 600 cr additional cost across the sector | Provides a modest Scope 1 CCTS reduction |
| Year 2 | ~2.5 to 3.0% | 75,000 to 90,000 t/yr | ~Rs 1,500 to 1,800 cr | Generates a measurable volume of CCTS CCCs |
| Year 3 | ~5.0% | 150,000 t/yr | ~Rs 3,000 cr estimated across the sector | Achieving 5% of ammonia from green H₂ translates to highly meaningful CCTS outperformance |
| Phase 2 (Projected) | 10 to 15% | 300,000 to 450,000 t/yr | ~Rs 6,000 to 9,000 cr, which should decline as broader H₂ costs fall | Drives a deeply significant CCTS Scope 1 reduction profile |
The table above illustrates the HPO's fundamental structural tension. In the initial phases, the compliance cost of meeting even a relatively modest HPO target, which represents the additional cost premium of green over grey hydrogen, is highly tangible. At a 5 percent blend, this premium scales toward Rs 3,000 crore annually across the national fertiliser sector. Crucially, this cost is borne by fertiliser companies that operate under strict market constraints, selling subsidised products at government mandated prices while awaiting rolling reimbursements from the Department of Fertilisers.
The essential subsidy mechanism question that the HPO framework must resolve.
Under India's current fertiliser subsidy architecture, the central government reimburses fertiliser companies for the difference between their approved production cost, which includes raw feedstock costs, and the heavily controlled Maximum Retail Price charged to farmers. When a fertiliser company replaces a portion of its grey hydrogen with green hydrogen under the HPO mandate, its blended feedstock cost naturally rises. Specifically, incorporating a 5 percent HPO blend, assuming an estimated Rs 200 per kg premium for green hydrogen, increases the underlying production cost of urea by approximately Rs 1,000 to Rs 1,250 per tonne. If the government formally recognises this incremental feedstock cost in the final subsidy calculation, the state essentially absorbs the HPO compliance cost. However, if the subsidy formula remains rigid and strictly uses grey hydrogen reference prices, the fertiliser company absorbs a massive penalty for compliance. Resolving this mechanism will heavily dictate how aggressively fertiliser companies pursue HPO targets.
The SIGHT-HPO linkage: how supply and demand connect
The SIGHT programme's Phase 1 allocation actively supports two critical components. It funds electrolyser manufacturing PLI support alongside a direct green hydrogen production incentive, capped at Rs 50 per kg in Year 1, Rs 40 per kg in Year 2, and Rs 30 per kg in Year 3 for qualifying green hydrogen output. This production incentive is disbursed directly to green hydrogen producers, strategically reducing the effective price they need to charge industrial buyers to maintain project viability.
A green hydrogen producer that formally registers under SIGHT, builds renewable powered electrolysis capacity, produces certified green hydrogen, and sells it to a fertiliser plant can confidently claim the SIGHT production incentive. In turn, the fertiliser plant pays a SIGHT subsidised price rather than bearing the full unmitigated production cost. Evaluating current green hydrogen production estimates that float around Rs 340 to 420 per kg, applying a Rs 50 per kg SIGHT incentive effectively lowers the price for the fertiliser plant to approximately Rs 290 to 370 per kg. This adjustment brings the supply significantly closer to commercial parity with conventional grey hydrogen, which typically ranges between Rs 150 and 250 per kg depending heavily on volatile global LNG spot prices.
Identifying which fertiliser companies are most exposed to HPO non-compliance risk.
When the HPO mandate transitions into official enforcement, the companies most exposed will be those lacking existing green hydrogen supply contracts or internal investments in dedicated electrolyser capacity. These exposed entities typically include highly gas-dependent plants like Chambal Fertilisers, which has historically relied almost entirely on internal efficiency improvements for CCTS compliance rather than announcing green ammonia supply pipelines, alongside peers like RCF and GSFC. Conversely, companies attempting to position themselves favorably include those that have already initiated green hydrogen off-take pilots or secured SIGHT backed commercial MoUs, such as IFFCO. However, industry veterans know that a preliminary MoU does not equal a secure physical supply, meaning execution risk remains substantially high across the entire sector.
Frequently Asked Questions
What exactly counts as green hydrogen under India's framework?
Under the MNRE's National Green Hydrogen Mission standard, officially notified in August 2023, green hydrogen is strictly defined as hydrogen produced through water electrolysis or qualified biomass processes boasting a lifecycle emission intensity of no more than 2 kg CO₂e per kg of H₂. Unlike the highly strict European frameworks, such as the EU Delegated Act that demands punishing 36-month additionality constraints and tight temporal correlation, India's standard offers much more flexibility, notably allowing the banking of renewable energy for up to 30 days. As long as the electricity is definitively sourced from verified renewables and the plant operates safely within the 2 kg CO₂e per kg threshold, the hydrogen fully qualifies.
Will fertiliser companies be able to buy HPO compliance certificates instead of physically procuring green hydrogen?
The exact market design for HPO compliance is still being actively debated. Currently, standard heavy industrial obligations often require direct physical procurement. However, industry stakeholders are strongly advocating for a market design that may eventually permit book and claim certificates or tradeable hydrogen attributes, functioning similarly to the REC market. Until a final HPO notification is published detailing the exact chain of custody rules, the question of whether compliance will mandate strict physical delivery or allow fluid financial instrument trading remains speculative.
Does HPO compliance successfully reduce a fertiliser company's CCTS GEI?
Yes, to the extent that the HPO requires substituting green hydrogen for natural gas based hydrogen in ammonia synthesis, the Scope 1 GHG emission from the ammonia synthesis step falls proportionally. Conventional natural gas SMR (steam methane reforming) generates approximately 9 to 11 kg of CO₂ per kg of H₂ as a direct process emission. Green hydrogen electrolysis, conversely, produces near zero direct CO₂. Therefore, substituting 5 percent of the hydrogen feedstock with green hydrogen reduces the ammonia synthesis Scope 1 emission footprint by approximately 5 percent of the traditional SMR CO₂ contribution. This represents a highly measurable improvement in the total plant GEI under strict plant-boundary accounting parameters.
Sources
- MNRE, National Green Hydrogen Mission, detailing Green Hydrogen Standards and comprehensive SIGHT Guidelines
- Ministry of Chemicals and Fertilisers, Fertiliser subsidy framework evaluations, mapping production cost and MRP mechanism parameters
- Department of Fertilisers, Urea nutrient based subsidy policy updates and green hydrogen procurement treatments
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