The Hinkley Point C nuclear power station achieved a significant milestone as the team successfully installed a polar crane at the summit of the first reactor building. This development signals a crucial step forward in the construction of the power station, enhancing its capabilities for both the construction and operational phases.
A Multipurpose Marvel
The polar crane, a marvel of engineering, boasts a main hoist, auxiliary hoist, maintenance jib crane, and a containment inspection man lift. Designed for multipurpose lifting needs, its versatility becomes apparent as it handles the installation of heavy equipment, including the reactor and steam generators, by rotating 360° at the pinnacle of the building.
Vital Role in Construction and Operation
During the construction phase, the crane’s pivotal role involves aiding the installation of substantial equipment. Once operational, it will continue to serve the power station for essential tasks such as refuelling and maintenance. Notably, the polar crane is intended to remain an integral part of the nuclear plant throughout its impressive 60-year operating life.
Engineering Feat: The Crane’s Anatomy
The crane’s structure comprises two beams, with the larger one measuring an impressive 44.77m in length and weighing a substantial 138,000kg. Assembling this intricate system on-site required months of meticulous work, culminating in a completed polar crane weighing 750t.
Big Carl Takes the Stage
Lifting the colossal polar crane into position was no small feat. Big Carl, recognized as the world’s largest land-based crane, undertook this responsibility. The successful integration of this final equipment piece sets the stage for the subsequent placement of the dome, completing the reactor building’s roofing process.
Precision in Delivery: Osprey’s Expertise
Specialist firm Osprey played a pivotal role in transporting the polar crane to the site, collaborating with key partners like transportation specialist Apco and logistics firm Natco. The journey involved meticulous planning, including the transportation of the crane’s first beam from Avonmouth via barge. Osprey navigated through weather conditions and tidal considerations before carefully positioning the beam using a specialized transporter
Project Collaboration and Challenges
The ambitious Hinkley Point C project is a collaboration led by the MEH Alliance, featuring contractors Altrad, Balfour Beatty Bailey, Cavendish Nuclear, and Doosan Babcock. Despite its engineering triumphs, the project faced challenges, with delays announced in January 2021 due to the Covid-19 pandemic. Subsequently, a year-long delay and a £3bn cost increase were confirmed last year, pushing the start date for the Unit 1 reactor to June 2027, with the cost now ranging between £25bn and £26bn.
As the Hinkley Point C project navigates challenges, the successful installation of the polar crane marks a significant stride forward, showcasing the dedication and expertise of the project team and its collaborators.
Source:Osprey
