Ammonia used in industrial scale water source heat pumps is relatively new, with the Castle Park Water Source Heat Pump being only the third example in the UK,” said a Vattenfall spokesperson.

These include the 5.2MW twin water source heat pumps at Queens Quay in Clydebank, a 3MW installation at Castle Park in Bristol, and the ongoing £2.5m Mersey Heat project in Liverpool, where heat ...

The main source for the hot water and heating comes from a heat transfer station using water from the Floating Harbour at Castle Park, and there is currently a temporary energy centre on a street ...