Carbon Credits for Renewable Energy Developers in India: Which Routes Are Still Open in 2026
For most of the 2010s an Indian solar or wind park could register under the CDM or Verra and sell credits on top of its tariff. That door has largely closed. Since 2020 neither Verra nor Gold Standard has accepted new grid-connected renewable projects outside least developed countries, and India is not one. Yet 2026 has opened two new routes: the CCTS offset mechanism at home and the Article 6.4 Paris Agreement Crediting Mechanism abroad. This guide sets out which carbon credit routes remain open to Indian renewable energy developers, what qualifies, and what to check before you put carbon revenue into a financial model.
Why plain solar and wind no longer earn voluntary credits
Verra's VCS Program stopped accepting new grid-connected wind, solar and geothermal projects from 2020, except in least developed countries, on the grounds that these technologies are now cheap enough to be built without carbon revenue. In other words, they fail the additionality test. Gold Standard's Renewable Energy Activity Requirements apply a similar filter: grid-connected activities are eligible mainly in least developed countries, small island states and landlocked developing countries, or in low and lower-middle-income countries only where the technology supplies under five per cent of installed grid capacity. Utility-scale solar and onshore wind in India are well past that threshold.
Buyers know this. Renewable credits from older vintages sit at the bottom of the voluntary market and are routinely excluded from corporate procurement specifications. If you hold legacy CDM-era credits, the realistic use is retirement against your own claims, not a revenue line. Our Verra vs Gold Standard comparison explains how each registry treats renewables today.
Route 1: the CCTS offset mechanism
The Bureau of Energy Efficiency approved ten sectors for the offset mechanism under the Carbon Credit Trading Scheme through an office memorandum dated 10 September 2024. Under the energy sector, the listed activities are green hydrogen production through electrolysis, renewable energy with storage, offshore wind, green hydrogen from biomass, and compressed biogas. In January 2025 BEE published twelve draft methodologies adapted from CDM methodologies for comment, and in March 2025 it released Version 1 of the Detailed Procedure for the Offset Mechanism.
Read the list carefully. Plain grid-connected solar and onshore wind are not the emphasis; storage, offshore wind and hydrogen are. The mechanism is voluntary and project-based: a non-obligated entity registers on the Indian Carbon Market portal, prepares a project design document under a BEE-approved methodology, has it validated by an accredited carbon verification agency, and earns Carbon Credit Certificates against a baseline. Demand comes from obligated entities in the notified sectors, which creates a domestic buyer that the voluntary market never gave Indian developers. The caveat is timing: the registry and trading platform were still being built through 2026, so sequence registration with commissioning rather than assuming immediate issuance. See our guide to earning CCCs under the offset mechanism for the project cycle.
Route 2: the Article 6.4 mechanism
On 30 July 2026 the Article 6.4 Supervisory Body adopted methodology A6.4-AMM-003, Electricity generation from renewable sources connected to an electricity system. It applies to greenfield run-of-river hydro, wind, solar and geothermal plants. It excludes biomass, retrofits of existing plants, and direct electricity supply to specified consumers, which rules out most captive and open-access C&I arrangements. Additionality must be shown through regulatory, lock-in, investment and common-practice analyses, and no emission reductions can be claimed for capacity built to satisfy a legal requirement such as a renewable purchase obligation.
Exporting those credits as ITMOs requires host-country authorisation and a corresponding adjustment. India's National Designated Authority published its Article 6.2 activity list on 17 February 2023: renewable energy with storage (stored component only), solar thermal power, offshore wind, green hydrogen, compressed biogas, tidal and ocean energy, and HVDC transmission paired with renewables, among others. A project that is on that list and also clears AMM-003 has the cleanest export path. Our Article 6.4 explainer for Indian companies covers authorisation and corresponding adjustments in detail.
What this means by project type
Utility-scale solar or onshore wind under a PPA: voluntary registries are closed; Article 6.4 is possible in principle but the common-practice and regulatory tests are a high bar; the CCTS energy list does not name it. The realistic product is an I-REC, not a carbon credit. See I-RECs vs carbon credits.
Solar or wind paired with battery or pumped storage: named in both the CCTS offset list and India's Article 6.2 list, with crediting limited to the stored component. This is the strongest domestic route.
Offshore wind: on both lists and still far from common practice in India, so additionality is defensible.
Green hydrogen, green ammonia and compressed biogas: on both lists; credit revenue can materially change project economics.
Captive or open-access supply to a single industrial buyer: excluded under AMM-003; sell the attribute through I-RECs and let the buyer use it for Scope 2 claims.
Five checks before you budget carbon revenue
Confirm the project is named in the BEE approved-sector memorandum or the MoEFCC Article 6.2 list, or fits AMM-003 as a greenfield plant.
Build the additionality file before financial close: a financial model showing tariff revenue alone does not clear your hurdle rate, plus evidence the project is not required by law.
Decide between I-RECs and carbon credits for each megawatt-hour. Selling both on the same output is double counting and will fail verification.
For exports, price in the corresponding adjustment. Authorised ITMOs command a premium over unauthorised credits but require NDAIAPA sign-off and a bilateral counterparty.
Line up an accredited carbon verification agency early. Validation capacity in India is limited and obligated-entity demand will absorb it first.
Where Csquare fits
Csquare works with developers on eligibility screening, methodology selection, PDD preparation and buyer matching for CCCs and Article 6 credits, and with corporate buyers on credit procurement and retirement. If you have a storage, offshore or hydrogen project reaching financial close in the next eighteen months, this is the moment to structure the carbon revenue line correctly. Contact us for an eligibility review.
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