EN1.3.3
Business travel travelling for work (by sea)
Environment
- Measuring GHG Emissions
Business travel travelling for work (by sea)
Business travel travelling for work (by sea) refers to any work-related journey made via sea transport—typically by ferry, boat, or sometimes ship—as part of an employee’s professional duties. This can include:
Taking a ferry from an isle to mainland UK for client meetings or site visits.
Using a boat to access remote work sites or island facilities.
Traveling by passenger ferry to attend a work conference or training session.
Key Value
£0.028
The monetised value of sea travel emissions per average passenger per km.
This value represents a cost or disbenefit through the creation of the GHGs emitted.
Air conversion factors should be used to report Scope 3 emissions for individuals travelling by sea 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 average passenger per km including indirect effects of non-CO2 emissions. Access the data.
Sea-based conversion factors should be used to report travel for business purposes on ferries.
| Activity | Type | Unit | kg CO2e | Monetised value (£) |
| Ferry | Average (all passenger) | passenger.km | 0.113 | £0.028 |
The business travel- sea conversion factors are for use for passenger travel, not for freighting goods. Full freight factors are available in the ‘freighting goods’ listing.
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 EN1.3.3 ‘Business travel: travelling for work (by sea)’, you can 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 an average sea passenger. Represent the cost or disbenefit of the emissions from sea travel.
Silver
Effort
Accuracy
Monetised value:
At the Silver level, you should calculate your approximate km, by type passenger, as each class produces different levels of carbon emissions. Represent the cost or disbenefit of the emissions from sea travel.
Gold
Effort
Accuracy
Monetised value:
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
Gold+
Effort
Accuracy
Monetised value:
In the Gold+ level of GHG emission values, you can focus on better management and improvement of your reporting on the GHG emissions.
| 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, 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?
PPN 06/20 was superseded by PPN 002 Taking account of social value in the award of contracts, published in February 2025 in line with the Royal assent of the Procurement Act 2023. This PPN outlined the requirement to use the new 2025 Central Government Social Value Model. The Model applies to all Central Government procurements commencing on or after 1 October 2025 under the Procurement Act 2023. Out of scope procurements can choose to apply the model but are not required to do so. The updated model is structured around 5 government missions and 8 outcomes, with 17 Model Award Criteria, and a mandatory minimum 10% weighting of the total evaluation score assigned to social value. |
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 seeking consent from 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 from creative interventions) can add more to the story, 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
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