Power
John Henry Group Ltd are a NERS accredited Independent Connections Provider offering a turnkey solution including design, all aspects of civils, traffic management, cabling and connections.
We have over 30 years’ experience as a tier 1 contractor building and maintaining fibre and communications networks for the major providers in the UK.
As an experienced and competent in-house Civils and Traffic Management (TM) operator, Avanti being the TM division in the group, we capitalise on early engagement with stakeholders and local authorities, enabling seamless project delivery as an ICP to independent power infrastructure projects, Solar and BESS installations, EV infrastructure, Wind Farms, data centres, residential developments and DNO infrastructure upgrades.
As well as the many tier 1 fibre installations in our portfolio, we have operated historically as a tier 2 supplier to Balfour Beatty and Morrisons on 11kV, 33kV & 132kV power infrastructure developments (please see case studies below).
Committed to excellence in every connection
Excellence
We put safety first in everything we do, minimising the environmental and injury risk of the activities we undertake, nothing at JHG is so important it can’t be done safely. We deliver our work with commercial acumen, to a high standard and are proud of the quality we provide. We respond promptly and proactively to our clients, communicating openly and honestly with them. We want our clients to value the relationships they have with us and the work we deliver for them.
Forward Thinking
We take a creative approach to problem solving both internally and with our clients. We always challenge the way we operate and look for improved ways of working. We promote our innovative capability and invest time in exploring new ideas and market opportunities.
Together
We listen to each other; we provide encouragement and support. We share our experiences for the benefit of others, learn from our mistakes and work together to succeed. We are honest with each other, constructive in our feedback and work collectively to resolve issues.
What we deliver to you
Expert-led design and engineering
Our journey with our clients begins at the very conception of a project. Led by a dedicated team, we ensure that every
solution not only meets stringent engineering and safety standards but also aligns perfectly with the environmental
and commercial needs of the development. Our added value engineering approach is not just about cost savings, but
optimising performance, delivery and viability through the lifecycle of the project.
Safety and quality
We are committed to protecting our people, our supply chain, our project stakeholders and our clients. We believe in
utilising the latest technologies and skills to ensure we are working safely. We conduct ourselves in line with industry
standards and we evidence a strong track record of delivering this standard across our nationwide projects.
Integrated civil and electrical expertise
Unlike many in our field, we benefit from an in-house civil engineering team alongside our electrical specialists. This
integration allows us to directly manage and coordinate all aspects of the electrical and civil engineering works,
working alongside our external subcontractors.
Technical support and innovation
Leveraging cutting-edge technology and innovative practices, we deliver cost-effective solutions that do not
compromise on quality or safety. Our team is equipped with advanced technical resources and expertise
to tackle the most complex of challenges. Our approach involves a thorough analysis of the client’s needs,
followed by the development of tailored strategies that deliver optimal results.
Seamless project management
From the initial feasibility and design stages, our project managers become the linchpin of communication and
execution. They hold a clear vision of project commitments and are dedicated to delivering against these objectives.
With a single point of contact, clients are assured of consistent updates and insights, ensuring that all elements of the
project are aligned with the overall timeline and the critical energisation milestones.
Case Studies
Clients Challenge: Excavate 5km route through historic Cambridge City Centre
John Henry Solution: The 5km underground twin circuit 33kV cable route was to connect two 33kv substations, crossing the river Cambridge, major road junctions, and at key locations directional drills were required.
Result: Client’s programme of works remained on schedule due to effective communication and John Henry expertise, Early-stage engagement by John Henry Group towards all key stakeholders ensured that works were performed safely, professionally and disruption to the local community remained at a minimum.
Cable section lengths were planned at 1000m, to minimise jointing costs. To achieve this, the duct had to be installed to a high standard with minimum deviation on-line and level. A challenge given the congested nature of some of the streets and junctions that had to be negotiated.
Clients Challenge: To install dual 33kv circuits underground to reinforce overhead lines
John Henry Solution: Carried out in phases, JHG were responsible for excavation, joint bays and cable laying works for approx. 7km of the route which also included directional drilling under the railway line serving Felixstowe Docks.
Part of the route was through Orwell country park. The park and surrounding area is contained within the at Suffolk & Essex Coast & Heaths National Landscape and many areas of the park have been afforded international, and regional designations due to their important wildlife and habitats. Directional drills were also required under the railway line serving Felixstowe docks.
Result: Methods of working were introduced which mitigated the environmental impact of our work. Deep excavation through a water meadow and stream bed, and the reconstruction of a path through ancient woodland, are examples of the complex works required.
Clients Challenge: 11kv circuit to new substation for new housing development.
John Henry Solution: As part of the route was a main access road to Cambridge railway station, traffic management was a key requirement.
Result: JHG were able to take advantage of their in-house TM company AVANTI, to liaise directly with the local authority and ensure the phasing and timelines required were executed successfully.
Clients Challenge: To install a 132kv duct and 1.6km cable route to allow overhead lines to be removed for new housing estate construction.
John Henry Solution: The route was partly constructed through an existing housing estate mindful of bending radii when pulling cables. The section from Prince Phillip to Prince Charles Rd proving extremely problematic with an ‘S’ curve. Careful positioning of joint bays allowed a successful cable pull.
Result: Clients build programme remained on schedule due to the civils expertise and problem-solving attributes of John Henry Group.
Meet the team
