Landfill Methane in India: Capture Projects, Carbon Credits and CCTS Offsets
Indian landfills are among the country's most detectable and most creditable methane sources. How landfill gas capture projects work, what they earn under voluntary standards and the CCTS offset mechanism, and why municipal waste projects succeed or fail.
Can an Indian landfill earn carbon credits from methane capture?
Yes, and it is one of the more straightforward project types to make work. Buried organic waste decomposing without oxygen produces landfill gas that is roughly half methane. Capturing it and either flaring it or using it for energy converts a potent greenhouse gas into a far weaker one — and the reduction is metered rather than modelled, which makes it unusually easy to verify. Approved methodologies exist under Verra and Gold Standard and are in use in India today, with waste-sector methane recovery also fitting the profile of activity the CCTS offset mechanism is built for. The binding constraint is almost always site engineering, not carbon.
Of all the methane sources in India, landfills are the most conspicuous. They are point sources, they are geographically fixed, they emit continuously, and they are large enough that satellites routinely detect them. Several Indian sites have already appeared in published global methane plume surveys.
That visibility is a liability for a municipal body. It is an opportunity for anyone who can fix it.
Where the methane comes from
The mechanism is the same methanogenesis that produces methane in natural wetlands and flooded paddy fields, and it operates for the same reason: organic matter decomposing where there is no oxygen.
Waste is buried and compacted. Within weeks, oxygen in the buried mass is exhausted. The microbial community shifts, and decomposition that would otherwise end at carbon dioxide instead produces landfill gas — typically around 50% methane, 50% carbon dioxide, with trace contaminants. Generation begins within months, peaks a few years after placement, and then declines over decades. A closed landfill keeps emitting long after the last truck.
Two familiar variables govern the rate: moisture and temperature. Wetter waste in a warmer climate decomposes faster. India's conditions — high organic fraction in municipal solid waste, monsoon moisture, warm temperatures year-round — produce fast, strong gas generation. This is the same pair of controls a 2026 Science study identified behind rising wetland methane emissions in western Siberia; the microbiology does not distinguish between a peat bog and a waste cell.
Why the high organic fraction cuts both ways
Indian municipal waste typically has a much higher wet organic fraction than waste in high-income countries. That means more methane generated per tonne — a bigger problem, and correspondingly a bigger reduction opportunity. It also means gas is generated fast, so capture systems installed early recover a larger share of the total.
How a capture project works
~50%
methane content of typical raw landfill gas
~30
GWP-100 of methane — flaring converts it to CO2 and removes almost all the warming impact
Source: IPCC AR6
Metered
reductions are measured from gas flow and methane content, not modelled from assumptions
- Extraction. Vertical wells are drilled into the waste mass, or horizontal collectors laid during filling, and connected to a header pipe network.
- Vacuum. A blower draws gas through the network. This is the step that makes or breaks a project — it requires the site to hold a vacuum, which requires adequate cover and, ideally, a liner.
- Treatment. Moisture is knocked out and the gas is filtered.
- Destruction or use. Either an enclosed flare burns the methane to CO₂ and water, or the gas fuels a generator, boiler or upgrading plant.
- Measurement. Gas flow, methane concentration and destruction efficiency are continuously metered. This is what makes the credit robust: the reduction is measured at the pipe, not inferred.
Even flaring is a large win
Flaring produces no energy and no revenue beyond credits, which makes it look wasteful. It is not. Converting methane to CO₂ removes roughly 97% of the warming impact of the carbon involved, because methane is about 30 times more potent than the CO₂ it becomes. Energy recovery is better where the economics support it — but flaring is a genuine and substantial climate outcome, not a token gesture.
Where the credits can go
Voluntary standards. Verra and Gold Standard both have approved waste-sector methodologies with an established track record in India. This route is available today, has known requirements, and reaches international buyers. Pricing follows the usual drivers covered in our carbon credit price guide.
The CCTS offset mechanism. India's Carbon Credit Trading Scheme has two tracks: a compliance mechanism with intensity targets for large obligated emitters, and an offset mechanism for entities without compliance obligations to earn tradable credits from verified reductions. A municipal body or waste operator falls squarely in the second category. The Bureau of Energy Efficiency is notifying methodologies progressively by sector, so confirm which are live before committing to this route — and note that a project cannot be registered under two standards for the same reductions, so this is a decision, not a hedge. Our registry comparison sets out the trade-offs.
What determines whether it works
Landfill gas is technically mature and has been deployed worldwide for decades. Projects still fail in India, and the reasons are consistent.
| Factor | What to check | Why it decides the project |
|---|---|---|
| Waste in place | Tonnage, age profile, organic fraction | Determines total gas available; too little and nothing else matters |
| Site engineering | Liner, daily and final cover, slope stability | Without a vacuum seal, extraction pulls in air and methane concentration collapses |
| Moisture | Leachate management, monsoon behaviour | Too dry slows generation; saturated waste blocks gas flow to wells |
| Institutional clarity | Who owns the site, the gas, and the credits | Unresolved municipal–operator arrangements have killed more projects than technology has |
| Offtake | Power evacuation, industrial gas buyer, or flare-only | A second revenue stream is what makes the project robust to credit-price swings |
| Site security | Fires, informal waste picking, surface disturbance | Repeated fires damage infrastructure and destroy the cover integrity extraction depends on |
The single most common failure mode is worth stating plainly: an open dumpsite is not a landfill. Without engineered cover, applying vacuum draws air into the waste mass, methane concentration falls below what a flare can sustain, and it can also raise fire risk within the waste. Many Indian sites need remediation and capping before gas capture is viable at all — which is a real cost that belongs in the feasibility study, not a surprise afterwards.
Feasibility before commitment
Nearly every failure listed above is detectable in a proper feasibility study: waste characterisation, a pump test to confirm the site holds vacuum, and written clarity on who owns the gas and the credits. That study costs a small fraction of the capital and routinely prevents projects that would not have worked.
Why now
Three pressures are converging.
Detectability. Large landfills are among the most reliably observable methane sources from orbit, and independent monitoring is expanding fast. A municipal body whose site appears in an international plume dataset faces a reputational problem it did not choose and cannot easily rebut — see satellite methane monitoring for how this now works.
Regulatory direction. Solid waste management rules, remediation mandates for legacy dumpsites and municipal climate commitments are all moving toward requiring gas management rather than treating it as optional.
Market demand. Buyers looking for high-integrity, easily verified reductions favour projects where the tonne is metered. Landfill gas scores well on exactly the dimension where many nature-based credits attract scepticism: you can point at the meter.
Getting started
- Characterise the site. Waste in place, age profile, organic fraction, existing cover and liner condition. Everything downstream depends on this.
- Run a pump test. Confirm empirically that the site holds vacuum and yields gas at usable methane concentration. This is the go/no-go test and it should happen early.
- Settle ownership. Get written clarity on who owns the site, the gas and the resulting credits, particularly in a municipal PPP structure. Ambiguity here surfaces at the worst possible moment — during a sale.
- Choose the route. Voluntary standard or CCTS offset mechanism, based on which methodologies are live, expected buyers and timeline. You cannot register the same reductions twice.
- Design for a second revenue stream. Flare-only projects work but are exposed to credit-price movement. Power generation or industrial gas supply makes the project resilient.
- Build MRV in from the start. Continuous flow and methane-concentration metering with a calibration regime, specified at design stage rather than retrofitted to satisfy an auditor.
Carbon Credit Consulting develops waste-sector methane projects from feasibility through registration and issuance, across both voluntary standards and the CCTS offset mechanism. Explore our carbon offset project development and CCTS compliance services, or talk to us about your site.
Sources
Frequently asked questions
Buried organic waste decomposes without oxygen and produces landfill gas, roughly half of which is methane. In the baseline scenario that methane escapes to the atmosphere. A capture project installs wells and piping to collect the gas and then either flares it, converting methane to the far less potent carbon dioxide, or uses it to generate electricity or heat. Credits are issued for the difference between baseline emissions and what actually reaches the atmosphere, measured from metered gas flow, methane content and destruction efficiency.
Waste-sector methane recovery is a well-established project category internationally and sits squarely within the kind of activity the CCTS offset mechanism is designed for — verified reductions by entities without compliance obligations. The Bureau of Energy Efficiency is issuing methodologies progressively by sector, so eligibility for any specific project depends on which methodologies have been notified at the time you apply. Confirm the current list before committing, and note that voluntary standards such as Verra and Gold Standard already have approved waste methodologies in active use in India.
Three things dominate: the quantity and organic content of waste in place, whether the site is engineered enough to hold a vacuum so gas can actually be extracted, and whether there is a revenue stream beyond carbon credits. Projects that rely on credits alone are fragile because credit prices vary. Projects that also sell electricity, supply gas to an industrial user, or avoid a regulatory penalty have a much stronger case — carbon revenue then improves an already-viable project rather than carrying it.
Most commonly because of site conditions rather than the technology. Open dumpsites without engineered liners or cover leak air into the extraction system, which collapses methane concentration and can make the gas unflareable. Other frequent causes are unresolved institutional arrangements between the municipal body and the operator, waste composition too wet or too inert to yield expected gas, and fires or informal picking that disrupt the surface. Almost all of these are identifiable during a proper feasibility study.
About the author
Carbon Credit Consulting
Carbon advisory team
The Carbon Credit Consulting advisory team writes on India’s carbon markets — CCTS, CBAM, offset projects, GHG accounting and ESG/BRSR — turning fast-moving rules into practical guidance for businesses, exporters and FPOs.
- CCTS & CBAM advisory
- GHG Protocol & ISO 14064
- Verra & Gold Standard project experience
Need help with ccts compliance?
Stay ahead of India’s compliance carbon market.
Related articles
CCTS 2026: The Complete Guide to India's Carbon Credit Trading Scheme
A plain-English 2026 guide to India's Carbon Credit Trading Scheme (CCTS): who runs it, which sectors are covered, how Carbon Credit Certificates work, key deadlines, and what your business should do now.
Read articleWhat Is the CCTS? India’s Carbon Credit Trading Scheme Explained
A plain-English guide to India’s Carbon Credit Trading Scheme (CCTS) — how it works, who is obligated, how Carbon Credit Certificates are traded, and how it differs from the PAT scheme.
Read articleMethane, GWP-20 vs GWP-100, and Why Climate Targets Keep Tightening
The choice between GWP-20 and GWP-100 can change a methane-heavy company's reported footprint by a factor of three. Here is what the metrics mean, which to use, and why a shrinking carbon budget makes compliance stringency a one-way ratchet.
Read article