An Post continues to make significant progress in carbon emission reductions and green energy usage, all the time dealing with record parcel growth – up 27% to 73 million items last year.
An Post’s 2025 Sustainability Report shows how the company achieved a 50% reduction in carbon emissions in September 2025, three months ahead of schedule, compared to 2009 levels, becoming one of the first national postal carriers in the world to reach this milestone while simultaneously growing its business and profits. The original target of a 50% CO2 emissions reduction by 2030 was set in 2017; however, in 2021, An Post brought forward this target to the end of 2025, reflecting the urgency of delivering climate action and pursuing Ireland’s sustainability goals.
By servicing 2.5 million delivery points every working day and serving up to 1 million customers a week in Post Offices, the report showcases An Post’s wider efforts to accelerate its hugely positive environmental and social impact for communities across Ireland.
Driving positive change
The ongoing investment in low-carbon transport and green energy has seen the company make steady progress with the electrification of its delivery fleet, 55% of An Post’s total fleet was alternatively fuelled by year-end 2025. So far this year, 575 new, larger EVs have been deployed, 30% of which replaced diesel vans. The remainder have replaced smaller, first-generation EVs, which had a lower battery range.
The report also shows that 95% of An Post’s heavy goods vehicles switched from diesel to renewable Hydrotreated Vegetable Oil (HVO) in Q4 of 2025. HVO provides up to a 90% reduction in greenhouse gas emissions per litre compared to conventional diesel.
Circular Economy
The Sustainability Report also highlights the company’s leadership in the realm of the circular economy, particularly in relation to clothing and homewares, with more than 5 million items sold or donated via An Post’s digital platforms, post offices, pre-paid packaging and delivery services in 2025 alone. In line with its Green Light strategy, An Post will continue to innovate in support of reuse recycle initiatives for consumers and businesses.
Managing smarter energy use across An Post’s property portfolio forms part of a wider initiative to decarbonise operations across the organisation. 99% of An Post buildings are now powered with green energy, and the company’s headquarters at The EXO in Dublin’s North Wall saw energy usage drop by a sizable 250 MWh in 2025, reflecting continued optimisation of building systems in the LEAD Platinum status building.
