JS Power Services installs substation plant and apparatus from 415 V up to 132 kV: primary plant, substation earthing, cable installation and termination, and panel wiring and fit-out.
Our authorised staff receive and clear Permits to Work up to and including 132 kV, and Limitations of Access.
JS Power Services is led by a director with 20 years in the substation industry, and we bring that experience to every job. We know what Distribution Network Operators (DNOs), Independent Connection Providers (ICPs) and principal contractors expect on site. We plan around outages, site access and your programme, so the work is done safely and right first time.
Four core services, delivered by one team on substations from 415 V up to 132 kV.
Installation of substation primary plant and apparatus on support steelwork and structures, set up to drawings and manufacturer instructions, ready for testing, commissioning and energisation.
A complete earthing package for ICPs and DNOs. We install the earthing system to the design, then test it and record the results. One contractor handles everything, from the first earth rod to the final test sheet.
Cables taken from containment to final termination: run, pulled, glanded and terminated neatly, ready to test.
Panel wiring and fit-out for control and protection panels, plus modifications carried out accurately to schematics.
Planned around outages, access and your programme, so the site is ready for energisation when you need it.
Review drawings and scope, agree risk assessments and method statements (RAMS) and outages, and arrange permits and limitations of access.
Erect support steelwork and structures, and install the substation and fence earthing.
Install circuit breakers, disconnectors, post insulators, busbars, CTs, VTs and CVTs.
Install containment, run, pull, gland and terminate cables, then wire and fit out panels.
Test, record the results and commission, leaving the site ready for energisation.
Substation builds, extensions, plant replacement and turnkey earthing, with our own DNO-authorised staff.
A dependable installation partner for principal contractors delivering substation projects.
Grid connection substations for solar, wind and battery energy storage systems (BESS).
Independent connection and customer-owned substations, including complete earthing packages.
We have multiple DNO-authorised staff on our team, so we can manage safety documents on site ourselves instead of waiting for someone else.
A61, A62, A40a, A17C, A17E and A77 are CPCS cards. Plus further site-specific and client training as each job requires.
A new 132 kV substation teed into the network to connect a solar farm. We installed all of the above-ground primary plant, the complete earthing mat and the earthing of the primary plant. All of these photos were taken by our own team on site.
Support structures and gantry steel erected on the new compound.
Primary plant lifted onto the structures as the layout takes shape.
Several teams working at the same time across the compound.
Night working under lighting, to keep to the programme.
Structures, plant and connections in place on a 132 kV bay.
Final details around the plinths and cable routes before handover.
A selection from other substation jobs across our services.
Old isolators removed and new isolators installed.
The existing CT removed and the new CT installed, including outage work at night.
From an empty basement to earth tape run along the walls and bonded throughout.
Send the scope, drawings or programme and we will reply with our availability and a price. The quickest way to reach us is by email or the form.