Carbon reporting for UAE SMEs: turning kWh into a scope 2 number

Key Takeaways

• The basic Scope 2 calculation is simple: energy consumed multiplied by a representative grid emission factor, with unit conversions controlled throughout, but the factor's accuracy is what determines whether the resulting figure is credible.
• DEWA publishes its own grid emission factor annually in its Sustainability Report, and this utility-specific figure should be used in preference to any generic UAE or global default for Dubai-based consumption.
• The recommended hierarchy for location-based Scope 2 electricity reporting is to use the utility or subnational factor where one exists and is credible, meaning an emirate-level or utility-territory-specific number, not a national average.
• SMEs should replace any open UAE default factor with emirate-specific or supplier-specific electricity data before formal disclosure, and retain DEWA, ADDC, SEWA, or other utility invoices showing the reporting period and site name as supporting evidence.

A UAE SME asked for its Scope 2 carbon footprint often reaches for a generic "UAE emission factor" found in a quick search, multiplies it by annual kWh consumption, and reports the result. That number is defensible only if the factor itself was the right one, and for most UAE businesses, the right factor is specific to their utility and the specific year, not a national average pulled from a generic dataset.

The calculation itself, and where it actually gets complicated

Scope 2 emissions are calculated as energy consumed multiplied by a representative grid emission factor, with controlled unit conversions throughout the calculation chain (GreenCalculus, Scope 2 electricity emissions methodology, retrieved 2026-09-10). The arithmetic is genuinely simple. The complexity, and the point where most SME reports go wrong, sits entirely in selecting the correct emission factor: it needs to match the reporting entity's geography and year as closely as the applicable accounting method allows.

Why DEWA's own published factor is the right input for Dubai consumption

DEWA publishes a grid emission factor, a carbon intensity figure for its electricity, within its own Sustainability Report each year, and the most recent DEWA Sustainability Report's electricity intensity figure is used as the open default proxy for UAE grid emissions in several international carbon accounting databases (Climatiq, DEWA emission factors dataset, retrieved 2026-09-10). For any business whose electricity is supplied by DEWA, this utility-specific published figure is the more accurate and more defensible input than a generic national or global average, because it reflects the actual generation mix (including gas, and increasingly solar) feeding Dubai's grid in that specific reporting year.

The reporting hierarchy that determines which factor to use

The recommended approach for location-based Scope 2 electricity reporting is to use the utility or subnational factor if one exists and is credible, meaning a utility-territory or emirate-level figure, before falling back to a national or regional default (London Reporting Academy, UAE Climate Law Scope 2 emissions guide, retrieved 2026-09-10). Real-world reporting practice already reflects this: organisations operating in Dubai commonly reference DEWA's published grid emission factor directly for their Scope 2 electricity disclosures, rather than a generic UAE-wide number.

For an SME with operations across multiple emirates, this means using ADDC's or SEWA's figures (where published) for consumption in Abu Dhabi or Sharjah respectively, rather than applying a single DEWA-derived factor across the whole business regardless of which utility actually supplied the electricity.

What auditable evidence actually looks like

Organisations should replace any open, generic UAE default factor with emirate-specific or supplier-specific electricity data before any formal disclosure, and should retain the underlying utility invoices, from DEWA, ADDC, SEWA, or the relevant local provider, showing the reporting period and site name as the supporting documentation behind the reported figure (London Reporting Academy, retrieved 2026-09-10). A carbon report built on assumed consumption or an unsupported generic factor doesn't hold up under any external audit or verification process, whereas one built on invoiced kWh and a utility-published, year-matched factor does.

Run your business's actual metered consumption through the AI/IoT energy savings calculator alongside your utility's published emission factor to build a first-pass Scope 2 estimate before engaging a formal carbon accounting process.

Frequently asked questions

Can I use a global average grid emission factor if I can't find a UAE-specific one?

Only as a last resort, and it should be flagged clearly as a proxy rather than presented as an accurate figure. DEWA, and increasingly ADDC and SEWA, publish their own factors, so a UAE business defaulting to a global or generic regional average is very likely understating the accuracy that's actually available to it.

Does the emission factor change from year to year?

Yes, and this is precisely why using the current year's published figure matters. As a utility's generation mix shifts, for example incorporating more solar capacity, the grid emission factor moves with it, so a factor from several years ago can meaningfully misstate current-year emissions.

What documentation should I keep to support a Scope 2 disclosure?

Utility invoices covering the exact reporting period and site, matched against the specific emission factor used for that period and utility. This pairing, consumption evidence plus a matched, dated emission factor, is what an external reviewer or auditor will ask to see first.

The bottom line

Turning kWh into a Scope 2 number is arithmetically trivial; making that number defensible is entirely about which emission factor gets multiplied in. For a UAE SME, that means the specific utility's specific-year published factor, not a generic national or global default, backed by the actual metered invoices showing where the consumption came from. For an SME tackling this for the first time, a broader business solutions review can help fold the carbon reporting process into the rest of the compliance and sustainability work already underway, rather than treating Scope 2 as a standalone exercise.

Figures were verified on 10 September 2026 against published DEWA, utility, and carbon accounting methodology sources. Emission factors are updated annually by each utility; confirm the current year's published figure directly with DEWA, ADDC, SEWA, or the relevant utility before finalising a disclosure.