India Carbon Market Glossary
A comprehensive reference of 100+ terms spanning India’s emerging carbon market ecosystem, global climate frameworks, and key regulatory mechanisms. Indian regulatory context is provided where applicable.
A
Activity Data
Quantitative data on the level of human activity that results in greenhouse gas emissions or removals during a given period. Examples include fuel consumption volumes, electricity usage, and production output tonnage.
Under India’s CCTS framework, obligated entities must report activity data as the basis for calculating their GHG emissions against sector-specific baselines.
Additionality
The principle that emission reductions from a project must be beyond what would have occurred in a business-as-usual scenario. A project is “additional” only if it would not have been implemented without the incentive provided by carbon credit revenues.
Under the Indian Carbon Market rules, BEE requires demonstration of additionality for all eligible project activities seeking Carbon Credit Certificates (CCCs).
Afforestation/Reforestation (A/R)
Afforestation is the planting of trees on land that has not been forested for a long period; reforestation is replanting on land that was recently forested. Both are recognised project categories for generating carbon credits through biological sequestration.
India’s Green India Mission targets 10 million hectares of A/R activity. A/R projects are eligible under the CCTS for carbon credit generation, subject to MoEFCC guidelines.
Allocation
The process by which emission permits or allowances are distributed to regulated entities within a cap-and-trade system. Allocation can be free (grandfathering), auctioned, or a hybrid of both.
Under India’s CCTS, the method of allowance allocation to obligated entities is determined by BEE in consultation with sector-specific technical committees.
Annex I Parties
The group of industrialised countries and economies in transition listed in Annex I of the UNFCCC, which committed to binding emission reduction targets under the Kyoto Protocol.
India is a non-Annex I party and historically had no binding emission reduction obligations under the Kyoto Protocol, though it hosted numerous CDM projects.
Article 6 (Paris Agreement)
The provision in the Paris Agreement that establishes market and non-market mechanisms for international cooperation on emission reductions. Article 6.2 covers bilateral/multilateral trading of ITMOs; Article 6.4 establishes a new crediting mechanism supervised by the UN.
India is actively negotiating Article 6 rules to enable international trade of carbon credits generated under its domestic CCTS while safeguarding its NDC commitments through corresponding adjustments.
Assigned Amount Unit (AAU)
A tradable unit under the Kyoto Protocol equal to one tonne of CO2 equivalent, issued to Annex I countries based on their emission reduction commitments. Each AAU represents the right to emit one tonne of CO2e.
Accredited Carbon Verifier (ACV)
An independent third-party body accredited to validate project design documents and verify emission reduction claims against approved methodologies.
Under CCTS, BEE maintains a list of accredited agencies authorised to perform validation and verification of emission reduction projects in India.
B
Baseline
The reference scenario representing the level of GHG emissions that would occur in the absence of a mitigation project or policy intervention. Baselines are essential for calculating emission reductions.
Under the PAT Scheme, BEE establishes energy consumption baselines (specific energy consumption or SEC) for each designated consumer based on historical performance and sector benchmarks.
BAU (Business As Usual)
A projection of future GHG emissions assuming no new policies, technologies, or behavioural changes are implemented. BAU scenarios serve as the counterfactual against which mitigation actions are measured.
BEE (Bureau of Energy Efficiency)
An agency under India’s Ministry of Power established by the Energy Conservation Act 2001. BEE is the nodal agency for implementing India’s carbon market and the PAT Scheme.
BEE is designated as the administrator of India’s compliance carbon market (CCTS), responsible for setting baselines, accrediting verifiers, issuing CCCs, and overseeing the national registry.
Biochar
A stable, carbon-rich form of charcoal produced by heating organic biomass in a low-oxygen environment (pyrolysis). When applied to soil, biochar can sequester carbon for centuries while improving soil fertility.
India’s agricultural residue burning problem (particularly in Punjab and Haryana) has prompted interest in biochar as a carbon credit pathway that also addresses air quality.
Blue Carbon
Carbon captured and stored by coastal and marine ecosystems, including mangroves, seagrasses, and salt marshes. These ecosystems can sequester carbon at rates significantly higher per unit area than terrestrial forests.
India’s 7,500 km coastline and extensive mangrove cover (notably the Sundarbans) represent significant blue carbon potential. MoEFCC is developing frameworks for blue carbon project crediting.
BRSR Core
The mandatory subset of SEBI’s Business Responsibility and Sustainability Reporting framework that the top 1,000 listed companies in India must disclose. BRSR Core includes key ESG metrics subject to reasonable assurance.
SEBI mandates BRSR Core disclosures including Scope 1 and Scope 2 GHG emissions, energy consumption, and water usage, creating a direct link between corporate reporting and carbon market participation.
Bundling
The aggregation of small-scale emission reduction projects into a single programme or portfolio to reduce transaction costs and improve access to carbon markets. Particularly relevant for distributed renewable energy and cookstove projects.
India has been a pioneer in project bundling, particularly for rural cookstove and solar lighting programmes where individual project sizes would be uneconomical for carbon credit registration.
C
Cap and Trade
A market-based regulatory mechanism that sets an absolute limit (cap) on total emissions from covered entities and allows those entities to buy and sell emission permits (trade) to meet their obligations at lowest cost.
India’s CCTS is designed as a cap-and-trade system for designated consumers, with the cap tightening over successive trading periods to drive progressive decarbonisation.
Carbon Budget
The cumulative amount of CO2 emissions permitted over a period of time to keep global warming within a specified temperature limit. Also used at national and organisational levels to allocate emission allowances.
Carbon Credit
A tradable certificate or permit representing the right to emit one tonne of CO2 equivalent, or certifying the reduction or removal of one tonne of CO2e from the atmosphere.
Under CCTS, carbon credits in India are issued as Carbon Credit Certificates (CCCs) by BEE and can be traded on designated exchanges (IEX and PXIL).
Carbon Credit Certificate (CCC)
The official unit of India’s domestic carbon market under the CCTS framework. One CCC represents one tonne of CO2 equivalent reduced or removed, issued by BEE after third-party verification.
CCCs are registered in the national carbon credit registry and can be traded on power exchanges (IEX and PXIL). They are distinct from international credits such as CERs or VCUs.
Carbon Dioxide Equivalent (CO2e)
A standard metric for comparing the warming impact of different greenhouse gases by converting them to the equivalent amount of CO2 based on their global warming potential (GWP) over a specified timeframe, typically 100 years.
Carbon Footprint
The total amount of greenhouse gases emitted directly and indirectly by an individual, organisation, event, or product, expressed in CO2 equivalent. It typically encompasses Scope 1, 2, and sometimes Scope 3 emissions.
Carbon Leakage
The phenomenon where emission reduction policies in one jurisdiction cause an increase in emissions in another jurisdiction, typically through relocation of production to regions with less stringent climate regulation.
India has raised concerns about carbon leakage from the EU CBAM, arguing it could disadvantage Indian exporters of steel, aluminium, cement, and fertilisers.
Carbon Market
A trading system in which carbon credits or emission allowances are bought and sold, providing an economic incentive for emission reductions. Carbon markets can be compliance-based (mandatory) or voluntary.
India’s carbon market was formally established through amendments to the Energy Conservation Act 2001 (via the Energy Conservation Amendment Act 2022), with BEE as the nodal administrator.
Carbon Neutrality
A state in which the net carbon emissions of an entity or activity are zero, achieved by balancing residual emissions with an equivalent amount of carbon removal or offsetting.
Carbon Offset
A reduction or removal of GHG emissions made to compensate for emissions occurring elsewhere. Offsets are commonly generated by projects such as renewable energy installations, forest conservation, or methane capture.
Carbon Price
The monetary value assigned to one tonne of CO2e emissions, established either through carbon taxes, cap-and-trade markets, or internal corporate pricing. It creates a financial incentive to reduce emissions.
India’s carbon price is expected to emerge from CCC trading on IEX and PXIL. The government may set a floor price and forbearance price to ensure market stability.
Carbon Sink
Any natural or artificial reservoir that absorbs and stores more carbon than it releases. Major natural sinks include forests, oceans, and soil.
India’s NDC commits to creating an additional carbon sink of 2.5 to 3 billion tonnes of CO2 equivalent through additional forest and tree cover by 2030.
Carbon Tax
A government-imposed fee on the carbon content of fuels or GHG emissions, creating a direct price signal to incentivise emission reductions. Unlike cap-and-trade, a carbon tax provides price certainty but not emission certainty.
India’s coal cess (introduced in 2010, later subsumed into GST Compensation Cess) was one of the world’s earliest implicit carbon taxes, initially set at INR 50/tonne and raised to INR 400/tonne.
CBAM (Carbon Border Adjustment Mechanism)
The EU’s mechanism that imposes a carbon levy on imports of carbon-intensive goods, designed to prevent carbon leakage and level the playing field between EU producers subject to the EU ETS and foreign producers without equivalent carbon costs.
India’s steel, aluminium, cement, fertiliser, and hydrogen exports to the EU face CBAM obligations from 2026. India is developing its domestic carbon pricing response partly to demonstrate equivalent carbon costs and potentially negotiate CBAM exemptions.
CCTS (Carbon Credit Trading Scheme)
India’s domestic compliance carbon market established under the Energy Conservation Amendment Act 2022. The CCTS creates a cap-and-trade framework for designated consumers across energy-intensive sectors.
Administered by BEE under the Ministry of Power, the CCTS covers sectors including thermal power, iron and steel, cement, aluminium, and petrochemicals. CCCs are the tradable units.
CDM (Clean Development Mechanism)
A project-based mechanism under the Kyoto Protocol allowing Annex I countries to invest in emission reduction projects in developing countries and receive Certified Emission Reductions (CERs) toward their targets.
India was the second-largest host country for CDM projects globally, with over 1,700 registered projects primarily in renewable energy, energy efficiency, and waste management sectors.
CERC (Central Electricity Regulatory Commission)
India’s federal electricity regulatory body responsible for regulating tariffs, inter-state transmission, and trading of electricity, including Renewable Energy Certificates.
CERC regulates the REC mechanism and has been involved in the convergence of RECs with the broader carbon market framework under CCTS.
Certified Emission Reduction (CER)
A carbon credit unit generated by CDM projects, where one CER represents a verified reduction of one tonne of CO2e. CERs could be used by Annex I countries to meet Kyoto Protocol targets.
India generated millions of CERs through its CDM portfolio. With the CDM transitioning to the Article 6.4 mechanism, the future role and convertibility of legacy CERs remains under negotiation.
Clean Development Mechanism
See CDM.
Climate Finance
Financial flows from developed to developing countries (and increasingly from private sources) to support mitigation and adaptation activities. Climate finance includes grants, concessional loans, equity, and carbon market revenues.
India requires an estimated USD 2.5 trillion through 2030 for its climate targets. The domestic carbon market is expected to mobilise a significant portion of private climate finance.
Co-benefits
Positive outcomes beyond GHG emission reductions that arise from climate mitigation projects, such as improved air quality, biodiversity conservation, employment generation, and health improvements.
India’s CCTS framework recognises co-benefits as a factor in project evaluation. Many Indian carbon projects in cookstoves, renewable energy, and waste management deliver significant social co-benefits.
Compliance Market
A carbon market created by regulatory mandate where covered entities are legally required to hold sufficient allowances or credits to cover their emissions. Non-compliance results in penalties.
India’s CCTS is a compliance market. Designated consumers that exceed their emission intensity targets must purchase CCCs or face penalties prescribed by BEE.
Corresponding Adjustment
An accounting adjustment made by the host country to its national emissions inventory when carbon credits are transferred internationally, preventing double counting of emission reductions toward multiple countries’ NDCs.
India’s policy on corresponding adjustments for internationally transferred CCCs is a critical decision point, as it affects both the international tradability of Indian credits and India’s NDC accounting.
CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation)
ICAO’s global market-based mechanism requiring airlines to offset the growth in their international aviation CO2 emissions above 2019 levels using eligible carbon credits.
Indian airlines operating international routes are subject to CORSIA obligations. Credits generated under India’s CCTS may need to meet CORSIA eligibility criteria for use by airlines.
D
Decarbonisation
The process of reducing the carbon intensity of energy systems, industrial processes, and economic activities, ultimately aiming to eliminate fossil fuel dependence and achieve net-zero emissions.
India’s decarbonisation strategy relies on renewable energy expansion (500 GW by 2030), the National Green Hydrogen Mission, energy efficiency via PAT, and the carbon pricing signal from CCTS.
Designated Consumer (DC)
An energy-intensive industrial facility or entity identified by BEE under the Energy Conservation Act as having energy consumption above a specified threshold, subject to mandatory energy efficiency targets.
Under the PAT Scheme and now the CCTS, designated consumers in sectors such as thermal power, cement, iron and steel, aluminium, textiles, and pulp and paper are obligated entities that must meet emission intensity reduction targets.
Direct Emissions
GHG emissions from sources that are owned or controlled by the reporting entity, such as on-site combustion, industrial processes, and company vehicles. Also known as Scope 1 emissions.
Double Counting
The erroneous situation where the same GHG emission reduction is claimed more than once, whether by two different entities, in two different registries, or toward two different targets. It undermines environmental integrity.
India’s CCTS national registry is designed to prevent double counting of CCCs. Corresponding adjustments under Article 6 address the risk of double counting between national and international claims.
E
Eligible Project Activity
A greenhouse gas mitigation project that meets all criteria set by the relevant carbon market standard or regulatory framework for generating carbon credits. Eligibility criteria typically include additionality, measurability, and use of an approved methodology.
Under India’s CCTS, BEE defines eligible project activities across sectors. Non-obligated entities undertaking eligible project activities can generate CCCs for sale to obligated entities.
Emission Factor
A coefficient that quantifies the amount of GHG emitted per unit of activity, fuel consumed, or product manufactured. Emission factors are used to convert activity data into GHG emission estimates.
BEE and MoEFCC publish India-specific emission factors, including the CEA (Central Electricity Authority) grid emission factor used for calculating Scope 2 emissions from electricity consumption.
Emission Intensity
The ratio of GHG emissions to a unit of economic output, energy produced, or physical product. Common metrics include tonnes CO2e per GDP, per MWh, or per tonne of product.
India’s NDC targets a 45% reduction in emission intensity of GDP by 2030 (compared to 2005 levels). The PAT Scheme and CCTS use sector-specific emission intensity targets for designated consumers.
Emission Reduction Unit (ERU)
A carbon credit unit generated by Joint Implementation (JI) projects under the Kyoto Protocol. One ERU represents a verified reduction of one tonne of CO2e.
Emissions Trading System (ETS)
A market-based regulatory instrument that caps aggregate GHG emissions from covered sectors and allows entities to trade emission allowances. The largest operational ETS is the EU ETS.
India’s CCTS is the country’s first national emissions trading system. Its design draws on lessons from the EU ETS, Korea ETS, and China’s national ETS while incorporating India-specific features like emission intensity-based targets.
Energy Conservation Act (ECA)
India’s foundational legislation for energy efficiency, originally enacted in 2001 and amended in 2022 to include provisions for the carbon credit trading scheme and expanded coverage of designated consumers.
The Energy Conservation (Amendment) Act 2022 is the legal basis for India’s domestic carbon market, empowering BEE to issue CCCs, designate obligated entities, and establish the national registry.
Energy Saving Certificate (ESCert)
A tradable certificate issued under the PAT Scheme to designated consumers that exceed their energy efficiency targets. Each ESCert represents one metric tonne of oil equivalent (MTOE) of energy saved.
ESCerts are traded on IEX and PXIL. Under the CCTS, ESCerts are being integrated with or transitioned into Carbon Credit Certificates (CCCs) to create a unified market instrument.
EU ETS (European Union Emissions Trading System)
The world’s first and largest cap-and-trade system for GHG emissions, covering power generation, manufacturing, and aviation across the EU and EEA. It is now in its fourth trading phase (2021-2030).
India’s CCTS design team has studied the EU ETS for best practices. The EU CBAM is linked to the EU ETS carbon price, directly affecting Indian exports to Europe.
F
Floor Price
The minimum price at which carbon credits or allowances can be traded in a regulated market. Floor prices provide revenue certainty for project developers and prevent market collapse during periods of low demand.
India’s CCTS framework includes provisions for BEE to set a floor price for CCC trading to ensure the carbon price signal remains meaningful for driving emission reductions.
Forbearance Price
The maximum price (price ceiling) at which carbon credits or allowances can be traded in a regulated market. It protects obligated entities from excessive compliance costs during periods of credit scarcity.
Under India’s CCTS, the forbearance price acts as a safety valve. If the CCC price reaches this ceiling, BEE may intervene by releasing additional allowances or implementing cost containment measures.
Fugitive Emissions
Unintentional GHG emissions from leaks, venting, or flaring in industrial processes, fuel storage, and transportation systems. Common sources include methane leaks from natural gas infrastructure and refrigerant leaks from cooling equipment.
G
GAB (German Accreditation Body)
The Deutsche Akkreditierungsstelle (DAkkS), historically involved in accrediting CDM validation and verification bodies. GAB accreditation has been relevant for entities seeking to operate as auditors under international carbon credit standards.
GHG Protocol
The most widely used international accounting standard for measuring and managing greenhouse gas emissions, developed by WRI and WBCSD. It provides frameworks for corporate, project, and product-level GHG accounting.
India’s BRSR disclosure requirements and CCTS monitoring guidelines are aligned with GHG Protocol standards, particularly the Corporate Standard for Scope 1, 2, and 3 emissions accounting.
Global Warming Potential (GWP)
A measure of how much heat a greenhouse gas traps in the atmosphere over a specified time period (usually 100 years) relative to CO2. For example, methane has a GWP of approximately 28 over 100 years.
Gold Standard
A voluntary carbon credit certification standard originally established by WWF, known for rigorous requirements around additionality, co-benefits, and stakeholder consultation. Credits are branded as Verified Emission Reductions (VERs).
India hosts a large number of Gold Standard projects, particularly in clean cookstove distribution, safe water access, and small-scale renewable energy.
Green Bond
A fixed-income financial instrument where proceeds are exclusively earmarked for projects with environmental benefits, such as renewable energy, energy efficiency, or sustainable land use.
SEBI’s Green Bond framework and India’s sovereign green bond issuance (first in January 2023) support climate finance. Carbon market revenues can enhance the bankability of green bond-financed projects.
Green Hydrogen
Hydrogen produced through electrolysis of water using renewable electricity, resulting in near-zero GHG emissions during production. It is a critical decarbonisation pathway for hard-to-abate sectors.
India’s National Green Hydrogen Mission targets 5 million tonnes per annum of production by 2030. Green hydrogen projects are expected to be eligible for CCC generation under the CCTS.
Greenwashing
The practice of making misleading or unsubstantiated claims about the environmental benefits of a product, service, or corporate activity, including the misuse of carbon offset claims to project a false image of climate action.
SEBI has strengthened disclosure requirements under BRSR to combat greenwashing by listed companies. ASCI (Advertising Standards Council of India) has also issued guidelines on environmental claims.
H
Hard-to-Abate Sectors
Industries where emissions are particularly difficult or expensive to eliminate due to process-inherent emissions or lack of commercially viable low-carbon alternatives. Key sectors include cement, steel, aviation, shipping, and chemicals.
India’s cement and steel sectors are among the world’s largest. CCTS is expected to drive innovation in these hard-to-abate sectors through carbon price signals and eligible project methodologies.
Hot Air
Surplus emission allowances that exist not because of genuine emission reduction efforts but due to economic downturn, over-allocation, or inflated baselines. Trading hot air undermines the environmental integrity of a carbon market.
I
ICVCM (Integrity Council for the Voluntary Carbon Market)
An independent governance body that sets and enforces global threshold standards (Core Carbon Principles) for high-integrity voluntary carbon credits. Replaced the Taskforce on Scaling Voluntary Carbon Markets.
Indian voluntary market project developers must align with ICVCM’s Core Carbon Principles to maintain international buyer confidence and premium pricing for their credits.
IEX (Indian Energy Exchange)
India’s largest energy exchange, providing electronic trading platforms for electricity, Renewable Energy Certificates, and Energy Saving Certificates. It is designated as a trading platform for the carbon credit market.
IEX is one of two exchanges (alongside PXIL) designated to host CCC trading under India’s CCTS. It already operates the ESCert and REC trading segments.
Indirect Emissions
GHG emissions that are a consequence of an entity’s activities but occur at sources owned or controlled by another entity. Scope 2 covers purchased electricity/heat; Scope 3 covers the entire value chain.
Internal Carbon Price
A monetary value that an organisation internally assigns to each tonne of its GHG emissions to guide investment decisions, assess climate risk, and drive internal decarbonisation. Can be a shadow price or an internal fee.
Several Indian corporates (e.g., Mahindra, Tata, Infosys) have adopted internal carbon pricing. SEBI encourages disclosure of internal carbon pricing under BRSR.
International Transferred Mitigation Outcome (ITMO)
A unit of emission reduction or removal transferred between countries under Article 6.2 of the Paris Agreement, subject to corresponding adjustments to prevent double counting toward NDCs.
India is negotiating bilateral agreements for ITMO transfers. Any CCC transferred internationally would become an ITMO and require a corresponding adjustment to India’s NDC accounting.
Inventory (GHG Inventory)
A comprehensive quantification of all GHG emissions and removals from specified sources within a defined boundary and time period. National inventories are reported to the UNFCCC; corporate inventories follow GHG Protocol standards.
IPCC (Intergovernmental Panel on Climate Change)
The United Nations body for assessing the science of climate change, providing policymakers with scientific assessments on climate change impacts, risks, and mitigation options. IPCC emission factors and GWP values underpin carbon accounting globally.
ISO 14064
An international standard in three parts providing specifications and guidance for quantifying, monitoring, reporting, and verifying GHG emissions at the organisational level (Part 1), project level (Part 2), and for validation/verification bodies (Part 3).
ISO 14064 compliance is referenced in India’s BRSR requirements and is increasingly expected for entities participating in the CCTS, particularly for third-party verification of emission reduction claims.
ISO 14065
An international standard specifying requirements for bodies that undertake validation and verification of GHG assertions, ensuring competence, consistency, and impartiality of third-party auditors.
BEE’s accreditation criteria for carbon credit verifiers under the CCTS are aligned with ISO 14065 requirements.
J
Joint Crediting Mechanism (JCM)
A bilateral carbon credit mechanism established by Japan with partner countries to facilitate the diffusion of low-carbon technologies and count resulting emission reductions toward Japan’s NDC.
India and Japan have a JCM partnership covering sectors such as energy efficiency, renewable energy, and waste management. JCM projects in India can generate credits recognised by both countries.
Just Transition
A framework for ensuring that the shift to a low-carbon economy is fair and inclusive, protecting workers, communities, and regions that depend on fossil fuel industries through retraining, social protection, and economic diversification.
India’s carbon market design explicitly considers just transition principles, particularly for coal-dependent regions in states like Jharkhand, Chhattisgarh, and Odisha.
K
Kyoto Protocol
The 1997 international treaty that operationalised the UNFCCC by committing Annex I countries to binding emission reduction targets. It established three flexible mechanisms: CDM, JI, and International Emissions Trading.
India ratified the Kyoto Protocol in 2002 and was a major beneficiary of the CDM, hosting over 1,700 projects. The protocol’s second commitment period ended in 2020, with mechanisms transitioning to Paris Agreement frameworks.
L
Leakage
An increase in GHG emissions outside the boundary of a carbon credit project that is attributable to the project’s implementation. For example, protecting one forest area may cause logging to shift to an unprotected area.
India’s CCTS methodologies require leakage assessment for all eligible project activities. Leakage must be subtracted from gross emission reductions to determine the net CCC issuance.
Life Cycle Assessment (LCA)
A systematic methodology for evaluating the environmental impacts of a product, process, or service throughout its entire life cycle, from raw material extraction through manufacturing, use, and disposal.
Long-Term Low Emission Development Strategy (LT-LEDS)
A strategic document that countries submit to the UNFCCC outlining their vision and pathway for achieving low GHG emission development through mid-century, consistent with the Paris Agreement goals.
India submitted its LT-LEDS at COP27, outlining a net-zero by 2070 pathway with five strategic transitions including electricity, transport, urban systems, industry, and carbon removal.
M
Marginal Abatement Cost Curve (MACC)
A graphical representation ranking emission reduction measures by their cost per tonne of CO2e abated, from cheapest to most expensive. MACCs help prioritise investments and estimate the cost of meeting emission targets.
India-specific MACCs developed by TERI, McKinsey, and others inform the setting of carbon price corridors (floor and forbearance prices) under the CCTS.
Market-Based Mechanism
A policy instrument that uses economic incentives (prices, tradable units) rather than prescriptive regulation to achieve environmental outcomes. Carbon markets, carbon taxes, and renewable energy certificate systems are examples.
Measurement, Reporting, and Verification (MRV)
The systematic process of measuring GHG emissions or reductions, reporting the data according to prescribed standards, and having the reported data independently verified by an accredited third party.
MRV is the backbone of India’s CCTS. BEE prescribes sector-specific MRV protocols and accredits verification agencies. Digital MRV technologies are increasingly encouraged to improve accuracy and reduce costs.
Methane (CH4)
A potent greenhouse gas with a GWP approximately 28 times that of CO2 over 100 years. Major sources include agriculture (rice paddies, livestock), landfills, coal mines, and natural gas systems.
India is a significant methane emitter, primarily from agriculture and waste. The Global Methane Pledge and domestic waste management policies create opportunities for methane-related carbon credit projects under CCTS.
Mitigation
Human interventions to reduce the sources or enhance the sinks of greenhouse gases. Mitigation includes transitioning to renewable energy, improving energy efficiency, protecting forests, and deploying carbon capture technologies.
MoEFCC (Ministry of Environment, Forest and Climate Change)
India’s nodal ministry for environmental policy, climate change, forestry, and wildlife. It is the designated national authority for UNFCCC matters and co-administers carbon market policy alongside BEE.
MoEFCC oversees India’s NDC implementation, UNFCCC negotiations, and nature-based climate solutions. It coordinates with BEE on CCTS policy for project types involving forests, waste, and land use.
Monitoring Plan
A detailed document specifying the parameters, methodologies, frequency, and responsibilities for tracking a carbon credit project’s performance and emission reductions over its crediting period.
Under the CCTS, every eligible project activity must submit an approved monitoring plan. BEE prescribes minimum monitoring requirements for each sector and methodology.
N
Nationally Determined Contribution (NDC)
A country’s self-defined climate pledge under the Paris Agreement, outlining its targets for emission reduction, adaptation, and other climate actions. NDCs are submitted every five years with increasing ambition.
India’s updated NDC (August 2022) targets 45% reduction in emission intensity of GDP by 2030 (from 2005 levels) and 50% cumulative electric power from non-fossil fuel sources. The CCTS is a key instrument for NDC delivery.
Nature-Based Solutions (NbS)
Actions that protect, sustainably manage, or restore natural ecosystems to address societal challenges including climate change, while simultaneously providing biodiversity and livelihood benefits.
India’s vast forest cover, mangrove ecosystems, and agricultural lands offer significant NbS potential. MoEFCC is developing NbS project methodologies for carbon credit generation under the CCTS and voluntary markets.
Net Zero
A state in which anthropogenic GHG emissions are balanced by anthropogenic removals over a specified period. Achieving net zero requires deep decarbonisation across all sectors with residual emissions offset by carbon removal.
India has committed to achieving net-zero emissions by 2070, as announced by Prime Minister Modi at COP26 in Glasgow. The CCTS is designed to progressively tighten caps toward this long-term goal.
Non-Fossil Fuel Obligation (NFFO)
A regulatory requirement for electricity distribution companies or large consumers to source a specified percentage of their power from non-fossil fuel sources, including renewable energy and nuclear power.
India’s RPO (Renewable Purchase Obligation) is the primary NFFO mechanism, requiring DISCOMs and open-access consumers to purchase a percentage of renewable energy, enforced by state electricity regulatory commissions.
Nitrous Oxide (N2O)
A potent greenhouse gas with a GWP approximately 265 times that of CO2 over 100 years. Primary sources include agricultural soil management (fertiliser use), industrial processes, and fuel combustion.
India’s agricultural sector is a major N2O source. Fertiliser management projects and modified agricultural practices offer N2O reduction credit opportunities under both CCTS and voluntary markets.
O
Obligated Entity
An entity that is legally required to participate in a compliance carbon market, either by holding sufficient emission allowances, achieving prescribed emission reduction targets, or purchasing credits to cover any shortfall.
Under India’s CCTS, obligated entities are designated consumers identified by BEE based on energy consumption thresholds. They must meet emission intensity reduction targets or purchase CCCs to cover the deficit.
Offset
See Carbon Offset.
Over-the-Counter (OTC) Trading
Direct bilateral trading of carbon credits between buyer and seller outside a formal exchange platform. OTC transactions are common in voluntary markets but less transparent than exchange-traded transactions.
While India’s CCTS mandates exchange-based trading (IEX/PXIL) for compliance credits, voluntary carbon credits from Indian projects are frequently traded OTC in international markets.
P
PAT Scheme (Perform Achieve and Trade)
India’s flagship energy efficiency trading mechanism under BEE that sets specific energy consumption (SEC) reduction targets for designated consumers across energy-intensive sectors. Over-achievers earn ESCerts; under-achievers must purchase them.
The PAT Scheme is the direct predecessor to the CCTS. It has operated across multiple cycles covering sectors including thermal power, cement, iron and steel, aluminium, textiles, pulp and paper, railways, refineries, and DISCOMs. ESCerts are being harmonised with CCCs.
Paris Agreement
The 2015 international climate treaty under the UNFCCC committing all signatory nations to limit global warming to well below 2 degrees Celsius above pre-industrial levels, with efforts to limit it to 1.5 degrees. It replaced the Kyoto Protocol’s top-down approach with nationally determined contributions.
India ratified the Paris Agreement in October 2016. The agreement’s Article 6 provisions for carbon markets directly inform the design of India’s CCTS and its framework for international credit transfers.
Permanence
The requirement that emission reductions or carbon removals credited through a carbon market remain permanent and are not reversed. Permanence is a particular concern for nature-based projects where sequestered carbon could be re-released through fire, disease, or land-use change.
India’s CCTS methodologies for forestry and land-use projects include permanence provisions such as buffer pools, monitoring periods, and reversal risk assessments.
Process Emissions
GHG emissions resulting from chemical or physical transformations in industrial processes (distinct from combustion). Examples include CO2 from calcination in cement manufacturing and CO2 from iron ore reduction in steelmaking.
Process emissions are a major component of India’s industrial GHG profile, particularly in cement (calcination accounts for approximately 60% of emissions) and steel sectors covered under CCTS.
PXIL (Power Exchange India Limited)
India’s second power exchange, providing platforms for electricity, REC, and ESCert trading alongside IEX. PXIL is designated as a trading venue for carbon credits under the CCTS.
PXIL, along with IEX, is authorised by CERC to facilitate CCC trading under the Indian carbon market framework.
Q
QA/QC (Quality Assurance / Quality Control)
Systematic procedures to ensure the accuracy, completeness, and reliability of GHG data. QA refers to planned review processes; QC refers to routine technical checks of data and calculations.
BEE’s MRV guidelines for the CCTS mandate QA/QC procedures for emission data at the facility level, including instrument calibration records, data validation checks, and documentation standards.
R
REDD+ (Reducing Emissions from Deforestation and Forest Degradation)
A UNFCCC framework that provides financial incentives to developing countries for reducing emissions from deforestation and forest degradation, plus sustainable forest management, conservation, and enhancement of forest carbon stocks.
India’s forest cover of approximately 71 million hectares offers significant REDD+ potential. India has submitted its National REDD+ Strategy to the UNFCCC and is developing state-level REDD+ action plans.
Renewable Energy Certificate (REC)
A market-based instrument certifying that one megawatt-hour of electricity was generated from a renewable energy source. RECs can be traded separately from the underlying electricity to fulfil Renewable Purchase Obligations.
RECs in India are regulated by CERC and traded on IEX and PXIL. With the advent of the CCTS, the relationship between RECs and CCCs is being harmonised to avoid double benefit from the same renewable energy generation.
Renewable Purchase Obligation (RPO)
A regulatory mandate requiring electricity distribution companies and certain consumers to source a specified minimum percentage of their electricity from renewable energy sources, either through direct purchase or by buying RECs.
India’s RPO targets are set by the Ministry of Power and enforced by state electricity regulatory commissions. RPO trajectories are aligned with India’s 500 GW non-fossil fuel capacity target for 2030.
Registry (Carbon Credit Registry)
A secure electronic system that records the issuance, ownership, transfer, and retirement of carbon credits or emission allowances. Registries are essential for preventing double counting and ensuring market integrity.
India is establishing a national carbon credit registry under BEE to track all CCCs from issuance through trading to retirement. The registry will interface with international registries for Article 6 transfers.
Retirement (of Credits)
The permanent removal of a carbon credit from circulation to claim the associated emission reduction. Once retired, a credit cannot be traded or used again. Retirement is the final step in a credit’s lifecycle.
Under India’s CCTS, obligated entities retire CCCs against their compliance obligations. The national registry permanently records all retirements to ensure environmental integrity.
S
SBTi (Science Based Targets initiative)
A partnership between CDP, UNGC, WRI, and WWF that enables companies to set GHG emission reduction targets consistent with climate science and Paris Agreement goals. SBTi validates corporate targets against sector-specific decarbonisation pathways.
A growing number of Indian corporates (including Mahindra, Wipro, and Infosys) have committed to SBTi-validated targets, creating demand for high-quality carbon credits to address residual emissions.
Scope 1 Emissions
Direct GHG emissions from sources owned or controlled by the reporting entity, including fuel combustion in boilers and vehicles, process emissions from manufacturing, and fugitive emissions from equipment leaks.
Scope 2 Emissions
Indirect GHG emissions from the generation of purchased electricity, steam, heating, and cooling consumed by the reporting entity. Scope 2 can be calculated using location-based (grid average) or market-based (contractual) methods.
India’s CEA publishes annual grid emission factors used for Scope 2 calculations. SEBI mandates Scope 2 disclosure under BRSR Core for the top 1,000 listed companies.
Scope 3 Emissions
All other indirect GHG emissions occurring in an entity’s value chain, including upstream (purchased goods, transportation, employee commuting) and downstream (product use, end-of-life treatment) categories.
SEBI’s BRSR framework encourages Scope 3 disclosure. As India’s carbon market matures, Scope 3 management will become increasingly important for supply chain decarbonisation.
SEBI (Securities and Exchange Board of India)
India’s securities market regulator, responsible for mandating ESG disclosures including BRSR for listed companies. SEBI also regulates green bond issuance and oversees the financial integrity of market instruments.
SEBI’s BRSR Core mandate creates a regulatory link between corporate GHG disclosure and carbon market participation, as listed companies’ emission data becomes auditable and comparable.
Sequestration
The long-term capture and storage of atmospheric CO2, either through natural processes (photosynthesis, ocean absorption) or technological means (direct air capture, bioenergy with carbon capture and storage).
Social Cost of Carbon (SCC)
An estimate of the economic damage caused by emitting one additional tonne of CO2, including impacts on agriculture, human health, property damage from flooding, and ecosystem services. SCC is used in cost-benefit analyses of climate policies.
Specific Energy Consumption (SEC)
The energy consumed per unit of output in an industrial process, used as the metric for setting and measuring energy efficiency targets. Measured in units such as kCal/kg of clinker or kWh/tonne of aluminium.
SEC is the foundational metric of India’s PAT Scheme. BEE sets SEC reduction targets for each designated consumer based on sectoral benchmarks and individual plant baselines.
Stationary Combustion
The burning of fuels in fixed equipment such as boilers, furnaces, turbines, and heaters for electricity generation, industrial heat, or space heating. It is typically the largest Scope 1 emission source for many industrial facilities.
T
TCFD (Task Force on Climate-related Financial Disclosures)
A framework (now incorporated into ISSB standards) providing recommendations for companies to disclose climate-related risks and opportunities across four pillars: governance, strategy, risk management, and metrics/targets.
SEBI’s BRSR framework incorporates TCFD-aligned disclosure requirements. RBI has also encouraged TCFD-aligned climate risk disclosures by Indian financial institutions.
TNFD (Taskforce on Nature-related Financial Disclosures)
A framework for organisations to report and act on nature-related risks, dependencies, impacts, and opportunities. TNFD complements TCFD by extending disclosure beyond climate to biodiversity and ecosystem services.
Tonne of Oil Equivalent (TOE)
A unit of energy defined as the amount of energy released by burning one tonne of crude oil, approximately 41.868 GJ or 11,630 kWh. Used as a standardised unit for comparing energy from different sources.
TOE (and its derivative MTOE) is the unit used for ESCerts under India’s PAT Scheme, where one ESCert equals one metric tonne of oil equivalent of energy saved.
Trading Period
A defined time interval during which emission reduction targets apply and carbon credits or allowances can be earned and traded. At the end of a trading period, compliance is assessed and penalties applied for shortfalls.
India’s PAT Scheme has operated in multi-year trading cycles. The CCTS is expected to follow a similar structure with trading periods of three to five years, with targets tightening in each successive period.
Transparency
The principle that all information related to carbon market transactions, methodologies, emission data, and credit issuance should be publicly accessible and verifiable. Transparency is essential for market integrity and trust.
India’s CCTS emphasises transparency through the national registry, public disclosure of verified emission data, and SEBI’s BRSR reporting requirements for listed obligated entities.
U
UNFCCC (United Nations Framework Convention on Climate Change)
The international treaty adopted in 1992 that provides the overarching framework for intergovernmental climate negotiations. The UNFCCC’s ultimate objective is to stabilise GHG concentrations at a level that prevents dangerous human interference with the climate system.
India is a signatory to the UNFCCC and plays a leading role in climate negotiations through the Like-Minded Developing Countries (LMDC) group. India reports its GHG inventory and NDC progress to the UNFCCC.
Uncertainty Analysis
A systematic assessment of the potential errors and variability in GHG emission estimates, including uncertainties in activity data, emission factors, and measurement methods. Expressed as confidence intervals or percentage ranges.
BEE’s MRV guidelines under the CCTS require obligated entities to conduct uncertainty analysis of their emission calculations and apply conservative estimates where uncertainty exceeds prescribed thresholds.
V
Validation
The independent assessment of a proposed carbon credit project’s design document against the requirements of the applicable standard or methodology, conducted before the project begins generating credits. Validation confirms that the project meets all eligibility criteria.
Verification
The independent assessment of monitored emission reductions or removals actually achieved by a carbon credit project, conducted after implementation. Verification confirms the quantity of credits to be issued.
Under CCTS, BEE-accredited verification agencies conduct periodic verification of emission reductions by obligated entities and eligible project activities before CCCs are issued.
Verra VCS (Verified Carbon Standard)
The world’s most widely used voluntary carbon credit standard, managed by Verra. Projects are assessed against approved methodologies and verified credits are issued as Verified Carbon Units (VCUs).
India has a large portfolio of Verra VCS projects spanning renewable energy, waste management, cookstoves, and forestry. Indian VCUs are traded globally in the voluntary market.
Vintage
The year in which the emission reduction or removal represented by a carbon credit actually occurred. Vintage is an important factor in credit pricing, with more recent vintages generally commanding higher prices.
Under CCTS, CCC vintage will be tracked in the national registry. Market rules may limit the use of older-vintage CCCs for compliance, encouraging timely emission reduction action.
Voluntary Carbon Market (VCM)
A decentralised market where entities voluntarily purchase carbon credits to offset their emissions, driven by corporate sustainability commitments, ESG goals, or consumer demand rather than regulatory obligation.
India is one of the largest suppliers to the global VCM. With the launch of the CCTS compliance market, Indian project developers operate in both markets, though rules on credit fungibility between compliance and voluntary markets are still evolving.
VCMI (Voluntary Carbon Markets Integrity Initiative)
An initiative that provides guidance for buyers of voluntary carbon credits through its Claims Code of Practice, setting standards for how companies can credibly use carbon credits alongside science-based decarbonisation.
W
Well-to-Wheel
A life-cycle analysis approach for transport fuels that accounts for all GHG emissions from primary energy extraction (well) through fuel production and distribution to final combustion in a vehicle (wheel). Includes both well-to-tank and tank-to-wheel stages.
Waste-to-Energy (WtE)
Technologies that convert non-recyclable waste materials into usable forms of energy such as heat, electricity, or fuel. WtE projects can generate carbon credits by avoiding methane emissions from landfills and displacing fossil fuel-based energy.
India’s Swachh Bharat Mission and urban waste management policies support WtE projects. Several Indian WtE facilities have registered as carbon credit projects under CDM, VCS, and Gold Standard, and WtE is expected to be an eligible project category under CCTS.
Total terms: 108
Last updated: May 2026
This glossary is maintained by RSustain. For corrections or additions, contact the editorial team.