Introduction 

The sustainable use of resources is a priority for the postal sector in order to reduce our environmental impact. It was a focus of the original Environmental Monitoring and Management System (EMMS) from 2008 to 2020, during which participants reduced their aggregated electricity use by more than 19.7 TWh – enough to power 1.6m US homes in 2024 (2).  

Apart from electricity use in buildings, the other key area of impact is fuel use for vehicles. In 2024, the SMMS group operated a fleet of more than 720,000 vehicles; reducing the negative environmental impact of the vehicle network is a priority for the sector. 

Through measuring performance in this area, IPC is actively contributing to the aims of UN SDG 9 – ‘Industry, innovation and infrastructure.’ In an internal survey by IPC in 2018, SMMS participants identified target 9.4, ‘upgrade infrastructure and retrofit industries to make them sustainable, with increased resource-use efficiency and greater adoption of clean and environmentally sound technologies’ as a priority for the postal sector. The group also identified ‘the sustainable management and efficient use of natural resources’ (target 12.2) as a priority. IPC encourages posts to recognise opportunities to encourage the efficient use of resources throughout the value chain.

Emerging trends

The reductions we have made in emissions associated with buildings need to be matched by improvements in vehicle fleet decarbonisation to meet our targets. Reducing the emissions from transport continues to be a key focus for posts. Total scope 1 and 2 emissions decreased from 2023 to 2024, as well as scope 3 emissions from outsourced road and air transport. This shows that great progress is being made by SMMS participants both within their internal and external operations.

There are significant challenges to reducing scope 3 emissions, although there are several reasons to be hopeful. The global electric vehicle (EV) market has grown since 2023. Indeed, global electric car sales have increased from 4% in 2020 to over 20% in 2024(3)  despite supply chain challenges. Electric cars represented 25% of all car sales globally so far in 2025; with the European market growing by 3.2 million in 2024. 

The growth in sales may be attributed to a combination of strong policy support and targeted stimuli. Outside of policy, other factors have also boosted the market. Battery costs continued to fall and commercial fleet electrification plans continued to be expanded.

Making the investments needed to decarbonise the vehicle fleet needs to be balanced with meeting our duties to shareholders and customers. However, we are confident that posts can build on the significant improvements they have made since 2008 and capitalise on the positive market trends observed in recent years.  

Decarbonising low carbon long haul transport will be increasingly crucial to reduce the environmental impact of transport. Technology piloted and refined for the last mile is being gradually reconfigured to meet the different needs of long-haul operations. High power charging technology is still being developed and standardised. Battery developments and declining costs have put electric vehicles firmly in the driving seat in the near term, and hydrogen is on the cusp of realising its potential as a viable alternative. In addition, implementing electric vehicles for aviation ground operations by working with airports and airlines poses an opportunity for reducing posts’ carbon footprint in the midterm. 

Further opportunities also exist in the energy efficiency space; there are still almost 1.8 million tonnes of scope 2 emissions produced from buildings annually by the SMMS group. Growing the share of renewable electricity will be crucial to meet our 2030 targets and address the carbon intensity of our operations. This also includes generating our own renewable electricity: Solar Photovoltaic is being adopted as a technology at some posts and we expect the rate of adoption to increase in the coming years.

The logistics sector is less water intensive than many other industries such as manufacturing and production. However, water scarcity is set to become one of the most pressing global environmental issues, and the postal sector should play its part in reducing consumption.  

SMMS participants

Results for RE in 2024 are calculated using SMP results from all 27 SMMS participants. Australian Postal Corporation is also not included in the 2024 results.

Results

• In the Sustainability Management Proficiency (SMP) questionnaire, posts scored 76.1% in Resource Efficiency, over three percentage points higher than the average overall group SMP score of 72.6%. The group’s performance in this area ranked fourth in 2024, down one place from 2023, out of the seven Focus Areas. 
• Posts scored highest in questions related to Strategy & Policy and Measurement & Evaluation. Opportunities for improvement include areas related to Embedding, such as governance, management systems and delivery processes.
• Seven posts consider water management to be a material issue and were therefore also assessed on questions related to water management. The remaining posts provided evidence that water management is not considered to be material to their organisation’s business performance or substantively influence the assessments and decisions of stakeholders. 

 

Highlights of the group’s performance in 2024 include:

• 19 out of 27 posts engage at least some customers or suppliers on energy use in buildings and in vehicles
• 25 posts have a publicly stated target on energy use in vehicles, 23 posts have one on buildings, and 2 posts have one on water use in buildings
• 25 posts engage employees on resource efficiency through working groups or joint management-worker committees
• 19 of the group are involved in non-governmental organisations and initiatives, such as EV100
• 14 participants' commitments are tied into senior executive financial rewards and incentives.

IPC encourages posts to continue developing their approaches to Resource Efficiency, including continuing sharing best practice with other group members and discussing a range of resource efficiency issues, including future strategies, with key stakeholder groups. 

Renewable electricity 

  

NB: All percentage figures are rounded to one decimal place 
2024 and 2023’s results include Canada Post, Japan Post and Thailand Post who joined the SMMS programme in 2024. As well as omitting Australian Postal Corporation from 2023 and 2024. All previous year’s results are calculated using SMMS participants present in the respective reporting cycle.

The group has successfully increased its use of renewable electricity from 14.3% of total electricity use in 2012 to 36.1% in 2024. Seven posts now use 100% renewable electricity, and a further eight use more than 90%. 

Alternative fuel vehicles 

 

NB: All figures rounded to nearest thousand

Absolute figures include Canada Post, Japan Post and Thailand Post, which joined the programme in 2024, for 2023 and 2024 as the earliest robust data available was for 2023. For previous years, figures reflect the SMMS participants present in each respective reporting cycle. Australian Postal Corporation data has been omitted from all years. This impacts comparability with previous reports.

  

NB: All percentage figures are rounded to one decimal place and all vehicle numbers are rounded to the nearest thousand 
Absolute figures include Canada Post, Japan Post and Thailand Post, which joined the programme in 2024, for 2023 and 2024 as the earliest robust data available was for 2023. For previous years, figures reflect the SMMS participants present in each respective reporting cycle. Australian Postal Corporation data has been omitted from all years. This impacts comparability with previous reports.

 

NB: All percentage figures are rounded to one decimal place and all vehicle numbers are rounded to the nearest thousand
2024 and 2023’s results include Canada Post, Japan Post and Thailand Post who joined the SMMS programme in 2024. As well as omitting Australian Postal Corporation from 2023 and 2024. All previous year’s results are calculated using SMMS participants present in the respective reporting cycle.