Our response to coronavirus

Find out how we're working to keep the electricity and gas flowing reliably throughout the outbreak.

What is being proposed north west of York? 

What options did we consider for the north west of York? 

We considered four potential corridors for the new overhead lines proposed for the area north west of York (A, B, C and D) and an extension corridor (A1) - See Figure 4

We also identified four areas for two new cable sealing end compounds (A, B, C and D – See Figure 5), and 12 areas for the proposed York North substation and associated infrastructure (See Figure 6). 

As part of the Options Appraisal process, we looked at 21 different combinations of the above, and subjected each combination to review and analysis by environmental, socio-economic and technical specialists.  

We then carried out a screening process to identify the ‘least preferred’ options – those which were less accessible, or required longer and more complex overhead line routes that increased the landscape and visual impact, as well as cost. A ‘preferred’ option was then selected (highlighted in blue in Figures 4, 5, 6) following a technical workshop attended by the project team. 

Developing proposals for the north west of York 

Figures 7 and 8 show a ‘graduated swathe’ within the broad route corridor where the new overhead lines could be routed, along with the two cable sealing end compounds and the 275kV York North substation.  

The darker areas of the graduated swathe show our preferred location for the infrastructure, but the final locations will depend on any potential modifications following feedback from the public and stakeholders to our initial consultation.  

We have identified two potential options for the proposed new 275kV overhead line between the proposed York North substation and the existing 275kV Poppleton to Monk Fryston (XC/XCP) overhead line. The orange graduated swathe shows our preferred location for either option within the broad corridor. 

Both options also include a blue graduated swathe, which is our preferred location within the broad corridor for: 

  • the proposed new 400kV overhead line 

  • a siting area for the cable sealing end compounds at the existing Norton to Osbaldwick (2TW/YR) overhead line, which would link the existing line to the proposed 400kV overhead line 

  • a siting area for the proposed 275kV (York North) substation. 

In our first round of consultation, we would welcome your feedback on the full extent of the broad route corridor, and also on the blue and orange graduated swathes (our preferred routes and sites for the infrastructure within the corridor).  

To learn more about the two options and how they compare, you can find our more as part of Figures 7 and 8 set out below. 

Figure 7 – North west of York graduated swathe (option 1) and supporting information
Figure 7 – North west of York graduated swathe – option 1


Enlarge Figure

 

North west of York graduated swathe – option 1 

Option 1 includes a siting area for the proposed 275kV York North substation, a broad corridor for the new 400kV overhead line previously described, and a siting area for the proposed new cable sealing end compounds. The proposed new 275kV overhead lines would be located as follows: 

  • A new 275kV overhead line from the proposed York North substation siting area, crossing the East Coast Mainline railway line, heading south west towards Overton Wood and continuing south west towards the River Ouse. The line would then cross the River Ouse, and connect into the existing 275kV Poppleton to Monk Fryston (XC/XCP) overhead line.  

  • In addition, a new 275kV overhead line, heading south from the York North substation area, parallel with the East Coast Mainline railway line (not crossing), and connecting into the existing 275kV Poppleton to Monk Fryston (XC/XCP) overhead line where it turns south towards Poppleton.    



Benefits of option 1  

  • This would allow the removal of up to 2.5km of the existing 275kV Poppleton to Monk Fryston (XCP) overhead line, reducing the ‘wirescape’ and improving the views from Overton, Nether Poppleton, Upper Poppleton and the community to the south and north of the River Ouse. 

  • Trees and shrubs along the railway would soften the view of the overhead line from different directions. 

  • Overton Wood would provide screening of the proposed 275kV overhead line from the west and would reduce the impact of the new line on the view from the south east and east. 

  • It’s unlikely that the proposed 275kV overhead line would have a greater effect on the view from Overton Grange than that of the existing 275kV Poppleton to Monk Fryston (XC/XCP) overhead line, due to the intervening farm buildings. 

  • This option provides an opportunity to reinstate and enhance vegetation in the Site of Importance for Nature Conservation (SINC) following the installation of the new 275kV overhead line and potential replacement of the existing pylon within the SINC.  



Disadvantages of option 1 

  • The new 275kV overhead line crosses the River Ouse, which would result in some loss of habitat and potentially increase risk of bird collision. However, we would remove the existing overhead line, which also crosses the river, which would reduce risk of bird collision. 

  • The 275kV overhead line route proposed in option 1 would be longer than that in option 2. 

  • There would be temporary disruption along the River Ouse, while we build the new 275kV overhead line and remove up to 2.5km of the existing 275kV overhead line. 

  • The new line would make several crossings of Hurns Gutter, identified as a network enhancement zone. This could result in some potential ecological impacts during and after construction, including some potential loss of vegetation.  

  • Construction work related to potentially replacing the pylon within the SINC and installing the new 275kV overhead line could have an ecological impact on land in the SINC. 

  • Small areas of existing woodland could be affected during the dismantling of up to 2.5km of the existing 275kV Poppleton to Monk Fryston (XCP) overhead line. 

Figure 8 – North west of York graduated swathe (option 2) and supporting information
Figure 8 – North west of York graduated swathe – option 2


Enlarge Figure

 

North west of York graduated swathe – option 2 

Option 2 includes a siting area for the proposed 275kV York North substation, a broad corridor for the new 400kV overhead line previously described, and siting area for the proposed new cable sealing end compounds, the same as displayed in option 1. The proposed new 275kV overhead lines would instead be located as follows: 

  • A new 275kV overhead line from the proposed York North substation siting area, crossing the East Coast Mainline railway line, then turning sharply south, parallel with the railway, before connecting into the existing 275kV Poppleton to Monk Fryston (XCP) line.  

  • In addition, a new 275kV overhead line from the proposed York North substation siting area, heading south, parallel with the railway (not crossing), connecting into the existing 275kV Poppleton to Monk Fryston (XC/XCP) overhead line where it turns south towards Poppleton (as option1). 



Benefits of option 2 

  • This option would provide an opportunity to reinstate and enhance vegetation in the Site of Importance for Nature Conservation (SINC) following the installation of the new 275kV overhead line and potential replacement of the existing pylon, situated within the SINC. 

  • Both 275kV overhead lines are further away from the River Ouse and its floodplain than option 1. 

  • Trees and shrubs along the railway line would reduce the visual impact of the ‘wirescape’ from different viewpoints. 

  • Removal of up to 700m of the existing 275kV Poppleton to Monk Fryston (XCP) overhead line would improve the views from Overton, Nether Poppleton and Upper Poppleton.   



Disadvantages of option 2 

  • Option 2 does not allow for the removal of up to 2.5km of the existing 275kV Poppleton to Monk Fryston (XCP) overhead line, but does allow the removal of 700m of that line.   

  • The new line would make several crossings of Hurns Gutter, identified as a network enhancement zone. This could result in some potential ecological impacts during and after construction, including some potential loss of vegetation (as with option 1).   

  • Construction work related to potentially replacing the pylon within the SINC and installing the new 275kV overhead line could have an ecological impact on land in the SINC (as with option 1).   

  • Small areas of existing woodland could be affected during the dismantling of up to 700m of the existing 275kV Poppleton to Monk Fryston (XCP) overhead line.   

  • Some additional pylons would be visible from Overton, Nether Poppleton and Upper Poppleton (even with several existing pylons removed). 

Tadcaster area

Proposals for the Tadcaster area

Monk Fryston substation area

Proposals for the Monk Fryston substation area

Additional works

Find out more information about additional works