# esgOS Studio

> esgOS Studio is a free carbon calculator that reports a plant's Scope 1 and both Scope 2 figures — location-based and market-based — with the emission factor and boundary on the page.

Canonical: https://joulewise.com/studios/esgos  
Publisher: jouleWise Advisory Services Pvt Ltd, Noida, India · Spain  
Reviewed: 2026-10-08  
Status: free planning tool; figures are indicative, assumptions stated

## In short

Enter purchased electricity, the grid emission factor for your jurisdiction and year, the share of green electricity contracted with instruments retired, the fuel burned on site, annual output and any known Scope 3. The studio returns Scope 1, location-based Scope 2 (every unit at the grid factor), market-based Scope 2 (green contracts credited), the totals under both methods and the intensity per unit of output. Only the market-based figure moves when the green share changes, which is the gap an auditor asks about first.
## Facts

- Default grid emission factor 0.716 kg CO₂/kWh, the figure used across the sector decks; it is jurisdiction- and year-specific and must be stated in any disclosure.
- Default scenario: 63 GWh/yr purchased electricity, 35% green with instruments retired, 7.9 million SCM of piped natural gas at 1.95 kg CO₂/SCM, 300 million litres of output, giving Scope 1 about 15,400 t, location-based Scope 2 about 45,100 t and market-based Scope 2 about 29,300 t CO₂e.
- Both Scope 2 methods are reported under the GHG Protocol dual-reporting approach.

## Assumptions and limits

- Scope 3 is taken as an input, estimated and labelled, never computed from nothing: value-chain emissions depend on supplier data.
- Intensity needs an agreed denominator; leave output at zero and no intensity is reported.
- This is arithmetic on typed figures; esgOS does the same arithmetic on fifteen-minute metered data so every number traces to a meter.

## Questions and answers

**Why are there two Scope 2 numbers?**  
Location-based applies the grid factor to every unit drawn and describes the grid you are physically on; market-based credits green supply whose instruments were retired in your name. Report both, or expect to be asked why not.

**Does a green electricity contract reduce Scope 1?**  
No. Scope 1 is fuel burned on site, and only burning less changes it — which is why heat electrification shows up in Scope 1 and electricity contracting does not.

**Which disclosure formats does esgOS produce?**  
BRSR Core-format, CBAM, CCTS and CDP disclosures and customer questionnaires, from the same metered record, with every figure tracing back to a meter, an integration or a stated assumption.

**Does esgOS replace an auditor?**  
No. It produces traceable evidence for one; assurance stays with the auditor.

## Related

- [esgOS](https://joulewise.com/solutions/esgos)
- [Location-based versus market-based Scope 2](https://joulewise.com/insights/location-based-vs-market-based-scope-2)

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