Bristol Water Source Heat Pump

Bristol City Council Bristol Heat Network

A 3 MW water source heat pump using energy extracted from the Bristol floating harbour to supply renewable heat to the low-carbon heat network in the Old Market area of Bristol – one of the largest projects of its kind in the UK.


In 2018, Sustainable Energy Ltd was first appointed by Bristol City Council and BEIS to establish a masterplan for a large-scale heat pump, to provide low-carbon heat to the city heat network.


Since 2018, Sustainable Energy Ltd has acted as lead consultant, taking the project through feasibility, design stages, RHI and HNIP funding applications, heat network design, substation design, stage 3 technical design & specification for the energy centre, and procurement for the Star ammonia heat pump & harbour abstraction system.  In 2021, the construction contract was given to Vital Energi, with Sustainable Energy Ltd continuing to provide support in the roles of clients engineer and commissioning agent for the scheme. In March 2022, the heat pump and energy centre commenced operation, exporting heat to homes and businesses in the area.


As the Bristol heat network expands, the 3 MW water source heat pump in the Castle Park Energy Centre (located at the edge of the harbour near Castle Park) will supply heat into the burgeoning city heat network. Sustainable Energy continues to work with the team in Bristol City Council on the Bristol Heat Network, aiming to maximise utilisation of the network by connecting both new developments and existing buildings in the area, and supporting Bristol City Council in its ambitious and groundbreaking aim to achieve a carbon neutral city by 2030.