EN1.1.4
Running Company Passenger Vehicles
Environment
- Measuring GHG Emissions
Running Company Passenger Vehicles
Passenger vehicles conversion factors should be used to report travel in cars and on motorcycles that are owned or controlled by the reporting organisation. This does not include employee-owned vehicles that are used for business purposes. Organisations report emissions from passenger vehicles to estimate their Scope 1 (direct) emissions.
For the emissions result from business travel in assets that are not owned or directly operated by the company, visit EN 1.3.2 Business travel: travelling for work (by land)
This value links to the Master Value MeasureUp EN1 GHG Emissions value.
Key Value
£0.041 per km
The monetised value of CO2 emissions from passenger vehicle for Average sized Petrol Car is £0.041 per km.
This value represents a cost or disbenefit through the creation of the GHGs emitted.
Conversion factors should be used to report Scope 3 emissions for individuals traveling for work purposes. For more information about principles for GHG accounting and reporting and three “scopes” of emissions, please visit MeasureUp EN1 GHG Emissions value.
According to the 2021 carbon values from DESNZ/BEIS, Carbon values in £2020 prices per tonne of CO2: central series for 2023 is £252 per tCO2e or 25.2p per kgCO2e. For more information, please visit MeasureUp GHG Emissions value.
UK government’s Greenhouse Gas Conversion Factors – 2024 reports the kgCO2e per km/miles driven for different type of passenger vehicles. Access the data.
According to GHG conversion factors an average sized car with petrol generates 0.16450 kg CO2e per km.
| Type of vehicle | Unit | KgCO2e | Monetised Value |
| Average sized Petrol Car | km | 0.16450 | £0.041 |
Please visit the government conversion factors for greenhouse gas reporting website for further guidance.
This value represents a cost or disbenefit through the creation of the GHGs emitted. The value should therefore not be presented as a positive value or added to an overall social value figure.
Local Needs Analysis Data Source
Before using this MeasureUp value, we encourage you to assess the local need in relation to the activity or outcome.
Here is the most useful initial data source for assessing local need in relation to this value.
To assess local needs related to the value EN1.1.4 ‘Passenger vehicles’, se the Greenhouse Gas Emissions data provided by the Department for Energy Security and Net Zero. This indicator measures carbon emissions across sectors and is available annually at both local authority and regional levels. It supports understanding of local contributions to climate change and progress toward net zero targets
You can also use indicators that show how people commute and how accessible employment centres are by different transport modes. Key data sources include: Method of travel to work (Census 2021) – Provides detailed information on how people commute (e.g., car, public transport, cycling, walking), available at local authority and MSOA levels. This data is collected every 10 years. Travel time to employment centre by mode of transport (ONS – Local Statistics Explorer) – Offers insight into the accessibility of work opportunities by different transport types. Data will be available for local authority, combined authority, region, and country levels. You can filter data by country, region, combined authority, or local authority, depending on the indicator. Together, these indicators help evaluate the sustainability and efficiency of local commuting patterns and identify areas where investment in transport infrastructure or remote working policies may be beneficial.
Bronze
Effort
Accuracy
Monetised value:
At the Bronze level, you should calculate the approximate km travelled by passenger vehicle. Represent the cost or disbenefit of the emissions from travel by passenger vehicle.
Here is an example
A company aims to report its passenger vehicle emissions over a year.
Approximate travel distances for average sized Petrol Car are 20,000 km.
Total Monetised value of travel by land for this organisation is 20,000*£0.041 = £820 over a year.
Remember that the monetised value represents a cost or disbenefit and so should be reported as such when using this value.
Silver
Effort
Accuracy
Monetised value:
At the Silver level, you should calculate the approximate km travelled by passenger vehicle, by type of vehicle, as each produces different levels of carbon emissions. Represent the cost or disbenefit of the emissions.
UK government’s Greenhouse Gas Conversion Factors – 2024 reports the kgCO2e per km/miles driven for different type of passenger vehicles. Access the data.
- Cars (by market segment): Mini, Supermini, Lower Medium, Upper Medium, Executive, Luxury, Sports, Dual Purpose 4X4, MPV.
- Cars (by size): Small Car, Medium Car, Large Car, Average Car.
- Motorbikes: Small, Medium, Large, Average.
- Fuel type: Diesel, Petrol, Hybrid, CNG, LPG, Unknown, Plug-in Hybrid Electric Vehicle, Battery Electric Vehicle
Here is an example
A company aims to report its passenger vehicle emissions over a year.
| Vehicle Type | Distance (km) | Emissions (kg CO₂e) | Monetised Value (£) |
| Average Car – Diesel | 10,000 | 10,000 × 0.16984 = 1,698.4 | 1,698.4 × £0.252 = £428.0 |
| Average Car – Petrol | 20,000 | 20,000 × 0.16450 =3,290
|
20,000 × £0.041 = £820.0 |
Total Monetised value of passenger vehicle for this organisation is £1,248 over a year.
Remember that the monetised value represents a cost or disbenefit and so should be reported as such when using this value.
Gold
Effort
Accuracy
At the Gold level, you would be expected to
- Measure more accurately using more specific data for you in-scope activities.
- Track the emissions over time. Steps in tracking emissions (choosing a base year and recalculating base year emissions) are explained in detail in the GHG Protocol Chapter 5 – Tracking Emissions Over Time
Here is an example
| Year | Vehicle Type | Distance (km) | Emissions (kg CO₂e) | Monetised Value (£) |
| 2023 | Average Car – Diesel | 10,000 | 1,698.4 | £428.0 |
| 2023 | Average Car – Petrol | 20,000 | 3,290.0 | £820.0 |
| 2023 Totals | — | — | 4,988.4 | £1,248 |
| 2024 | Average Car – Diesel | 9,000 | 1,528.6 | £385.2 |
| 2024 | Average Car – Petrol | 18,000 | 2,961.0 | £738.0 |
| 2024 Totals | — | — | 4,489.6 | £1123.2 |
In 2024, total emissions from diesel and petrol cars fell from 4,988 kg CO₂e in 2023 to 4,490 kg CO₂e, with monetised costs decreasing from £1,248 to £1,123
In this case the decrease in tonnes of CO2e created by the company is a positive change through a reduction or mitigation of negative impact on the environment. The monetised value shows the value of the saving or reduction in negative impact. When including figures such as these in reporting it is important to be clear what the numbers represent, whether a positive or negative impact or change.
Support in developing your Gold survey approach is available through the Measure Up partners, so please do reach out to Impact, State of Life or PRD.
Gold+
Effort
Accuracy
In the Gold+ level of GHG emission values, you can focus on better management and improvement of your reporting on the GHG emissions. The following steps could be useful:
- Set clear targets and a target date
- Provide resources to take the actions necessary to meet your target
Environmental Reporting Guidelines: In the Streamlined Energy and Carbon Reporting Guidance (SECR) there are two types of targets outlined:
- An absolute reduction target which compares absolute figures in the target year to the base year
- An intensity target based in an appropriate other unit or normalising factor (e.g. kgCO2e per km/miles driven)
For more information please visit Environmental Reporting Guidelines: Including streamlined energy and carbon reporting guidance (SECR).
The actions under Gold+ for the environmental values in MeasureUp are also in line with the eighth Principle of Social Value ‘Be Responsive’ which represents the imperative for organisations to respond to impact measurement or ‘Social Value accounts’ with action to improve positive impact and decrease negative impact. Users of this Standard will create a structured ‘impact management approach’ that can guide decision making at strategic, tactical, and operational levels to optimise impacts on wellbeing.
| Value Type: | Activity |
What's this?
This is the type of value. Some values are outcomes, which means many different interventions might lead to them, while others are specific interventions that have a set value. |
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| UN SDG Categories: |
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What's this?
The UN Sustainable Development Goals are global goals adopted in 2015 for all signed up nations to achieve for us to have a sustainable global future by 2030. There are 17 Goals that address the global challenges we face, including those related to poverty, inequality, climate change, environmental degradation, peace and justice. The Goals are all interconnected, and in order to leave no one behind, it is important that we achieve them all by 2030. |
| 2020 Social Value Models: |
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What's this?
PPN 06/20 Taking account of social value in the award of central government contracts introduced the Central Government Social Value Model in 2020 which all Central Government contracting authorities must use in their in scope procurements. It consists of 5 themes, 8 policy outcomes, and 24 Model Award Criteria which outline key priority areas to achieve more social value. |
| 2025 Social Value Models: |
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What's this?
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Evidence
Measure Up focuses on empowering you to numerically measure the impact you’re having. We recommend that numeric reports are backed up with stories and other types of evidence to help illustrate, in human terms, the impact that’s being made on individuals.
We recommend seeing consent from one or more participants in your intervention to collect and tell their story. This should include a little background on the participant, a summing up of life before the intervention, the human impact of the intervention, and the longer term (if known) impact on the person’s life outside of, and after, the intervention.
Providing photographs, audio recordings, video interviews or even artefacts from the intervention (for example, writing, paintings, music, etc from creative interventions) can add more colour, and convey the emotional impact of interventions more directly.
In some cases it’s appropriate to anonymise or abbreviate the personal information of case study participants. No story should be published or shared without the recorded consent of the individual(s) it concerns. Individuals continue to own the rights to their stories and if they request you stop sharing the story or making it available online you should do so promptly and without need for justification.
Feedback
Measure Up is an open, collaborative and transparent. If you have any suggestions or feedback on our pragmatic, recommended approach to measuring and valuing social value, including wellbeing, economic, and fiscal impact, and effects on our environment, please get in touch so we can share and discuss this at our next Advisory Group meeting.
More help
We want to empower anyone to perform and improve their impact measurement – without needing a degree in economics.
If you need any more help, or just someone to do the legwork for you we can help signpost you to software, training and consultancy to help you get to grips with the impact you’re having.
