Value per kWh, net calorific value

0.192kgCO₂e/kWh

Net calorific value · Biogenic CO₂ and land use excluded · GWP100 · AR6

FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories

2024–

Default: the latest year−2.7% on 2023

Region: United Kingdom GB
Boundary: Combustion
Data quality: HighRated by us, not by the source
Licence: Open · OGL v3.0

Where 0.192 comes from

Published as one number

NAEI prints this factor as a single figure, with no parts to add up.

Reporting this kilowatt-hour under the GHG Protocol

Scope 1 0.192

You burn the fuel, so its combustion is your Scope 1.

CiteAPI

The factor, standardised

Every factor on open-climate.ai answers the same questions in the same words, whatever the publisher. Open any ⓘ for the definition.

Fuels › Waste-derived fuels · United Kingdom · per kWh · Average

Category: Fuels › Waste-derived fuels; Browse it to compare every publisher's factors
Activity: Power stations - Scrap tyres; NAEI: Power stations
Region: United KingdomGB; Not on the record; set from NAEI's coverage
Per unit: kWh; Published as TJ (net); multiplied by 3.6 to serve it per kWh
Data type: Average; No supplier named
Classified as: NFR / CRT inventory source category1A1ai

Combustion · Excl. biogenic CO₂ · AR6

Boundary: Combustion; Fuel combustion
GWP method: IPCC AR6, 100-year horizon; Re-weighted by open-climate.ai from NAEI's AR5 figure of 0.192 kgCO₂e/kWh
CO₂e basis: Excl. biogenic CO₂FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories; Split by gas

High quality · Open licence · 1990 to now

Data quality: High; Rated by us, not by the source
Applies to: 2024– (2024 onwards); Reference year 2024 · a value for every year back to 1990
Origin: Re-weighted by open-climate.ai from NAEI's AR5 figure
Licence: Open · Open Government Licence v3.0; Free to reuse, with attribution

All values

35 values, one per year back to 1990. Every one is biogenic CO₂ and land use excluded, AR6 GWP100, so the years compare directly.

Latest, and lowest on record0.192 2024–

Highest0.209 2008

Change since 1990−6%

2024 onwards0.192Default value

Year

Every value of Power stations - Scrap tyres, United Kingdom
AppliesYears	TotalkgCO₂e/kWh
	0.192Default value
	0.198
	0.193
	0.198
	0.195
	0.199
	0.198
	0.202
	0.199
	0.205
	0.201
	0.205
	0.201
	0.205
	0.199
	0.201
	0.209
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205
	0.205

Default: what search and the API return when you ask for nothing specific

What this number covers

The path of one kilowatt-hour of this fuel, from the waste it is made from to the boiler.

Your meter
1 kWh used. The factor is per kWh measured here.
Burning it
In the boiler or kiln: CO₂ from the fossil and biogenic carbon in the waste, with a little CH₄ and N₂O
0.192

= 0.192 per kWh

Outside this boundary

Producing and delivering the fuel
Purchased electricity and heat
Making the boiler that burns it
Building the pipelines and the network

NAEI counts only burning the fuel, not producing and delivering it or the things built to extract, move and burn it.

Gases

Basis: Excl. biogenic CO₂FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories

Carbon dioxide (CO₂)0.18596.4%
Nitrous oxide (N₂O)0.003932%
Methane (CH₄)0.0031.6%

Σ 0.185 + 0.003 + 0.00393 = 0.192.

Each gas is converted to CO₂e with AR6 100-year warming potentials; biogenic CO₂ and land-use carbon are left out, while methane from biogenic sources is counted.

From NAEI's record to a comparable factor

NAEI publishes this factor as one record. Here is each field as printed and what open-climate.ai made of it.

NAEI fields and their standardised form
NAEI field	As printed		Served as
Name	Power stations	→	Power stations - Scrap tyres
Category	Energy	→	Fuels › Waste-derived fuels
Boundary	1A1ai_Public_electricity_generation	→	Combustion
Total	0.0533617	→	0.192 kgCO₂e/kWh, combustion
Unit	TJ (net)	→	per kWh, multiplied by 3.6
GWP	AR5	→	AR6, GWP100

Checks this factor passed

The three gases add up to the total: CO₂, CH₄ and N₂O.
One value per year from 1990, no gaps, no overlaps.
Printed value multiplied by 3.6 to serve it per kWh.
Printed total restated by open-climate.ai from AR5 to AR6 with the published gas split: 0.192 → 0.192 kgCO₂e/kWh.
Unit, region, boundary and method mapped to fixed code lists.

How we standardise every library

About this factor

NAEI gives no description for this factor. Filed under Energy.

Source and licence

Publisher: UK National Atmospheric Emissions Inventory (NAEI), compiled for Defra and DESNZ by Ricardo Energy & Environment
Library: NAEI 2026

Open the record at NAEI

Open Government Licence v3.0 Open

The values and their metadata are served in full and may be reused with credit to the publisher.

Credit it with this line(c) Crown 2026 copyright Defra and DESNZ via naei.energysecurity.gov.uk, licenced under the Open Government Licence (OGL).

A plain reading of the licence, not legal advice. The licence text prevails.

Cite this factor

(c) Crown 2026 copyright Defra and DESNZ via naei.energysecurity.gov.uk, licenced under the Open Government Licence (OGL). Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/naei_uk/ (CC BY 4.0). https://open-climate.ai/factors/ef-naeiuk-power_stations_scrap-gb-kwh-combustion-cf5f616b/?v=efv1-a5fe2bab5876058d0c9e473566b38f7f

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