Case study:
Winchester Super Hub, A34
Case study location:
Three Maids Hill, Winchester, Hampshire
The client: InstaVolt
Charging stations: 44 Ultra-rapid chargers
Completed: March 2025
The proposal: Located at Three Maids Hill just metres from the A34 junction close to the M3 in Hampshire, the super hub will have 44 charging bays, including drive-through bays for large/ towing vehicles and accessible charging bays, as well as an on-site restaurant and play area.
Building the UK’s largest rapid-only EV charging Super Hub
Parco CiviI Engineering & Groundworks are once again proud to have been chosen as the principal contractor working with InstaVolt, the UK's leading EV charging network, to create the UK’s largest rapid-only EV charging super hub.
Key highlights of the contract include:
- Parco appointed Principal Contractor for works
- S278 design and submission to local authority
- On site civils design
- Ground modelling designs including cut and fill design
- Install and maintain site compound and site hoarding
- All groundworks and enabling works
- Installation of street lighting
- All on site utility enabling works
- On-site ducting for solar farm
- Drainage works
- Design and install of playground facilities
- Full soft landscaping of the area
- Deliver and install 44 rapid chargers
InstaVolt opens largest ultra-rapid charging super hub - built by Parco Civil Engineering & Groundworks
The official opening of the largest and most advanced ultra-rapid charging super hub in the UK, strategically located near the A34 and close to junction 9 of the M3, Winchester, took place in March 2025.
The Winchester super hub represents a major step forward in the UK’s electric vehicle (EV) charging infrastructure, providing 44 ultra-rapid chargers, each capable of delivering up to 160kW of power.
The site, designed by InstaVolt and built by Parco is designed to accommodate a wide variety of vehicles, and features drive-through bays for larger vehicles and towing setups, extra-long van bays, and dedicated accessible charging spaces to ensure inclusivity for all drivers.
Site construction time lapse - March 2025:
This time-lapse shows in 2 minutes what has been more than 2 years in the making for InstaVolt - and 9 months of rigorous planning and construction by Parco. The Winchester super hub, developed for our forward-thinking client, demonstrates the next evolution of public charging.
"There are now more than 1,100,000 fully electric cars on UK roads and Three Maids Hill is the first of our new generation of Super Hubs. It represents a major landmark for us and will be game changing for EV drivers.
The new site will be truly state of the art and offer a host of on-site amenities including food, drink, and toilets.
Delivering Super Hubs like this is essential to improving the charging infrastructure across the country, bringing continued confidence not only to the sector as a whole but crucially to those motorists who are making the switch to a more sustainable and greener future by choosing to drive an EV."
Delvin Lane
CEO
InstaVolt
Site development update - November 2024:
The installation of permeable asphalt marks a significant step forward for the site. Other highlights this month include:
- S278 technical approval granted by Hampshire County Council.
- Offsite works have commenced, installing comms and HV power.
Site development update - October 2024:
Another productive month for the EV super hub site build at Winchester. Targets hit include:
- All 44 charger pads now in place.
- 54,000 permeable blocks delivered to site with 26,000 laid within the footways!
Site development update - September 2024:
- 40 charger pads completed (4 more to go).
- Levels raised in the solar farm area – Laying the groundwork for efficient solar power generation.
- 3.6km of ducting installed – Ensuring robust infrastructure for seamless energy and data distribution across the site.
Site development update - August 2024:
The steel frame for the café is now in place. The Foul Treatment Plant has been successfully installed and 34 (of 44) charger pads and accompanying ducts are now in situ.
Site development update - July 2024:
The building footprint has been fully prepared, paving the way for the next steps in the build. Work has begun on the installation of all 44 charger bases, making it clear to see where each charger will be located.
