Hinkley Point

Bridgwater

Weston-super-Mare Churchill

PortisheadAvonmouth

Seabank

BristolNailsea

Sandford

Existing overheadline New overheadlineNew underground cableSubstationNew substationCable sealing end compound

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Build 400,000 volt underground cableWe are building 8.5 km of underground cables to cross the Mendip Hills AONB into Sandford substation.Work started in March 2019 and includes:• temporary entrances and access roads to

allow construction traffic to enter site from the local highway.

Build Sandford substationWe are building a new substation, just north of the A368, in order to maintain local electricity supplies in the area.Our work will include:• installing a temporary construction

compound adjacent to the site of the new substation.

Build 400,000 volt overhead line We’re building a new overhead line from Sandford substation to Seabank substation, using T-pylons in this area. Remove existing 132,000 volt overhead lines We’ll remove some of WPD’s existing overhead lines:• from Bridgwater to Avonmouth • approximately 1.5 km of existing overhead

line to Weston-super-Mare.This will make way for, and minimise the visual impact of the new overhead line. Connect the local network to Sandford substation We are building a 132,000 volt connection from the new Sandford substation to the existing overhead line that goes to

Weston-super-Mare. Near the substation, approximately 700 m of the connection will be buried to allow the new overhead line to pass overhead.We’re also building a short section of 132,000 volt overhead line between the new substation and the existing line that goes to Churchill. This work will be done by WPD and will include:• installing temporary construction

compounds • building temporary entrances and access

roads to allow construction traffic to enter site from the local highway

• building temporary overhead lines to divert electricity from the working area

• removing approximately 550 m of existing overhead line to Churchill.

Area 5: Sandford

Area 5

Hinkley Connection Project

hinkleyconnection@nationalgrid.co.uk 0800 377 7347 (24 hour)

www.hinkleyconnection.co.ukFreepost H POINT CONNECTION

We’re responsible for providing safe, efficient and reliable energy networks across England and Wales.We’re building a new high-voltage electricity connection between Bridgwater and Seabank near Avonmouth. It is a significant investment in the region’s electricity network and will connect new sources of low-carbon energy, including EDF Energy’s Hinkley Point C, to homes and businesses The new connection will be 57 km long – consisting of 48.5 km of overhead line and 8.5 km of underground cable through the Mendip Hills Area of Outstanding Natural Beauty (AONB). To minimise the impact on the local landscape and make way for the new connection, we’re removing over 67 km of existing overhead lines and pylons. We’re also building substations at Sandford and Shurton, modifying existing pylons at Hinkley Point and Seabank, extending Seabank substation, and making some changes to the existing local electricity network owned by Western Power Distribution (WPD). This leaflet is one of a series of briefing sheets summarising the project and providing information about what’s going on along the route of the new connection. The connection and associated infrastructure works will take around eight years to build, including reinstatement and replacement planting.

January 2020

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Vegetation clearance, replacement planting and reinstatementWe need to clear some trees and hedgerows along the route of the new connection before starting construction.After the work has been completed in each area, we will carry out landscaping, replacement planting and reinstatement. We’ll be replacing trees and hedgerows at a ratio of 4 to 1 and wherever possible, we’ll replant in the same location. Where this is not possible, we’ll plant at an agreed location nearby.We’re using planting to screen parts of the development and we’ve committed to extra planting within 3 km of the development, as this will reduce the overall impact of the new connection and enhance local landscape and biodiversity.

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Sandford substation

Temporary haul road access andexit for construction traffic. Traffic will be routed from M5 junction 22 via the A38 and A368

Temporary haul road access and exit for construction traffic. Construction traffic will be routed to and from M5 (junction 21) viaMay’s Green Lane and A370

Timeline (dates may be subject to change)

2019 2020 2021 2022 2023 2024 2025 20262018

Build Mendip Hills underground cable

Build Sandford substation

Build new overhead line

Remove existing overhead line

Build connection to existing overhead line to Weston-super-Mare

Build connection to existing overhead line to Churchill

Landscaping, planting and reinstatement across the whole route

N.B. These maps are for indicative purposes only and are not to scale. Background Mapping © Crown Copyright Ordnance Survey License No.100022488