District heating is growing rapidly worldwide as governments and energy providers invest in cleaner, more efficient heating infrastructure to support net-zero targets and improve energy security.
Countries including Denmark, Sweden, Germany and Poland are continuing to expand low-carbon heat networks, while cities such as Helsinki and Toronto are investing in systems powered by renewable energy, waste heat recovery and large-scale heat pumps.
According to the International Energy Agency, district heating already supplies approximately 10% of global building heat demand, with significant growth expected as urban populations increase and governments prioritise low-carbon infrastructure development.
Here in the UK, district heating currently accounts for around 3% of overall heat demand, but the sector is expected to expand rapidly over the coming years. Government targets aim for heat networks to supply up to 20% of UK heat demand by 2050 through the introduction of heat network zoning and large-scale infrastructure investment.
A number of UK towns and cities are already progressing major district heating schemes. Projects are underway or expanding in London, Bristol, Leeds, Sheffield and Plymouth, with many networks designed to use recovered heat, energy-from-waste plants, heat pumps and renewable energy sources.
One of the UK’s most recognised schemes is the Gateshead District Energy Network in Gateshead, which uses mine water and large-scale heat pump technology to provide low-carbon heating to homes and businesses. Similar projects are being explored nationwide as local authorities seek sustainable alternatives to traditional gas heating systems.
As district heating networks continue to expand, demand for reliable and durable pipework infrastructure is expected to increase significantly. Heat networks require specialist piping systems capable of operating efficiently under varying temperatures and pressures while maintaining long-term reliability and energy performance.
For manufacturers, contractors and infrastructure providers across the utilities and construction sectors, the continued growth of district heating presents major opportunities for innovation, investment and long-term development throughout both UK and international markets.
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