Carbon accounting
Karbon: carbon accounting with regional CEA grid factors built in
It exists because generic international tools get India wrong, and correcting them manually every time is how errors get introduced.
30+ clients across industries50+ ESG assessments completedRatings verified on site
Who uses Karbon, and what each gets
Our analysts run the calculation, your team keeps the data after handover, and under Sustainability Officer as a Service your Visiting Sustainability Officer (VSO) maintains it.
Our analysts
What they do
Run the calculation on Karbon, with source, version and year recorded against every factor used.
Your team, after handover
What they get
Your data set up in Karbon, so you can keep managing and monitoring as you go.
Your VSO
What they do
Maintain carbon accounting month by month, so annual figures are assembled continuously.
Leadership, through Lenz
What they get
Emissions by scope, intensity metrics, progress against reduction targets.
A first inventory takes 6–10 weeks for a single site with reasonable records.
What Karbon records
The calculation runs on Karbon, our carbon accounting platform built for precise GHG inventory services.
- CEA grid emission factors built in by grid region
- A maintained factor library with source, version and year recorded against every factor used
- Activity data entered by source and by meter
- All Scope 3 categories, with the calculation method recorded per category
- Intensity metrics calculated against your own output units
- Year-on-year comparison against a locked baseline
Every factor carries
- Source
- Version
- Year
- Grid region (for electricity)
In the documentation
- A methodology annexure with every formula, factor and source
- An evidence pack for your assurance provider
How an inventory is built on Karbon
Source, version and year, recorded against every factor used.
- Define the boundary. The first check on any carbon number is whether its boundary is defined properly.
- Enter activity data. Activity data is entered by source and by meter.
- Apply the right factors. CEA grid emission factors by grid region, with source, version and year recorded against every factor used.
- Cover Scope 3. All Scope 3 categories, with the calculation method recorded per category.
- Set intensity and baseline. Intensity metrics against your own output units, and year-on-year comparison against a locked baseline.
- Hand over. A methodology annexure with every formula, factor and source, an evidence pack where assurance is needed, and your data set up in Karbon.
How the four tools connect
You do not have to adopt all of them. Most clients start with one and add others as obligations grow. Adding tools later never requires re-entering historical data.
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Assessment data
Pulse
SIM assessment and internal ESG data from your own departments
Sub-pillar performance, scores, and the evidence index
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Carbon accounting
Karbon
Energy, fuel and activity data for carbon accounting
Emissions by scope, intensity metrics, progress against reduction targets
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Supplier portal
Bridge
ESG data from your suppliers and vendors
Supply chain ratings, risk view, and primary Scope 3 data
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ESG dashboard
Lenz
The consolidation layer. ESG data monitoring and tracking happen here.
The single dashboard leadership actually looks at.
In practice
Footwear manufacturer, Kozhikode
The full methodology was published inside the sustainability report itself, so the figure could be checked by their buyer rather than simply accepted on trust.
Their brand customer had begun asking about carbon as part of a wider ESG assessment. The company had never measured its emissions and had no basis to answer.
A full GHG inventory for baseline year FY 2025-26 across both units. Scope 1 covered DG-set diesel and owned fleet fuel on IPCC Tier 1 factors; Scope 2 used the CEA Southern Grid factor.
FY 2025-26
baseline year, two units
Questions about Karbon
Something we have not covered? Ask us directly.
Do we have to do Scope 3?
Not always. Scope 1 and Scope 2 emissions satisfy many requests. But if your buyer is European, or you are reporting under GRI or BRSR Core, Scope 3 emissions will come up.
Our data is incomplete. Is that a problem?
It is normal. We use documented estimation methods for gaps and disclose them as estimates. What matters is that the method is defensible and the same one is used next year so the trend is real.
Will this number be audited?
Not by us. We prepare it and document it so that it can be audited. If your report requires assurance, we hand over an evidence pack the assurance provider can work from.
How long does a GHG inventory take?
For a single site with reasonable records, six to ten weeks. Scope 3 extends this, because it depends on how quickly your suppliers respond.
Do we have to adopt all four tools?
You do not have to adopt all of them. Most clients start with one and add others as obligations grow. Adding tools later never requires re-entering historical data.
Where do we log in?
Not on this website, which has no client logins. Platform data is handled under your engagement.
Find out where your emissions actually are
Tell us what you had to gather last time, and we will show you what capturing it continuously would look like.
Email [email protected]
Phone +91 81291 68649
Send us a message
Tell us what you are being asked for, and by whom. We reply within one working day.