Project overview and scope
TDC delivered a project to replace three outdated steam calorifiers, which had been in service for over 50 years, at one of the UK's largest power stations. As lead contractor, TDC was responsible for the design, procurement and installation of the new heating system.
Modernising the heating solution
The old steam-heated calorifiers were replaced with electric-heated calorifiers, a more efficient and reliable option. Because of local water hardness, an indirect heating option was selected. The new system uses three 100kW electric boilers connected to three 2,500-litre calorifier vessels, ensuring ample hot water supply.
Phased installation for continuous supply
Temporary modifications supported a phased replacement approach so the site's hot water supply was maintained throughout. Careful planning minimised disruption, allowing the power station to continue operating without compromising hot water availability.
Commissioning and performance
Installation and commissioning of all three electric boilers and calorifier vessels were completed successfully. The system is fully operational and meets the site's hot water demands to the design specification, with improved efficiency and reliability.
Overcoming challenges
The project involved working in a congested basement area while maintaining a continuous supply of hot water. TDC's site experience and project management expertise delivered the works on time and to the client's satisfaction.
“It has been great to work with TDC, a site-based maintenance provider. Using industry experience combined with extensive site knowledge they provided a cost-effective, efficient solution for hot water demand. They have delivered a challenging project on time. The new electric hot water system has provided Drax with a modern, robust system.”