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Heat maps

Download33kV Fault Level Map (PDF, 1.13MB)

Connecting DG to our network increases the amount of energy supplied into a potential fault on the network. The network has a limited ability to accept fault energy that is dictated by the fault rating of the network’s equipment and plant. The standing fault level and equipment rating therefore are a potential constraint on the ability to connect DG. The following map shows the distribution areas of 132/33kV substations. The area’s colour indicates the impact of connection a 25MW generator to the busbars at that substation.

  • Green – the fault level is less than 95% of the fault rating of the substation and likely to be able to connect a 25MW generator
  • Amber – the fault rating is between 95% and 100% of the fault rating of the substation and connection of 25MW will need consideration.
  • Red – the fault level is in excess of 100% of the fault rating of the substation and unlikely to be able to connect a 25MW generator without reinforcement

DownloadHV Fault Level Map (PDF, 1.27MB)

Connecting DG to our network increases the amount of energy supplied into a potential fault on the network. The network has a limited ability to accept fault energy that is dictated by the fault rating of the network’s equipment and plant. The standing fault level and equipment rating therefore are a potential constraint on the ability to connect DG. The following map shows the distribution areas of 33/11kV and 33/6.6kV substations. The area’s colour indicates the impact of connection a 10MW generator to the busbars at that substation.

  • Green – the fault level is less than 95% of the fault rating of the substation and likely to be able to connect a 10MW generator
  • Amber – the fault rating is between 95% and 100% of the fault rating of the substation and connection of 10MW may be constrained.
  • Red – the fault level is in excess of 100% of the fault rating of the substation and unlikely to be able to connect a 10MW generator without reinforcement

Download33kV Thermal Capacity Map (PDF, 1.13MB)

To be able to connect your generation to the network there needs to be available capacity to accept the electricity.  The Thermal Capacity map illustrates the amount of spare capacity available when connecting generation at the busbars of a 132/33kV substation.  The Red/Amber/Green on the Thermal Capacity map show the likelihood that a new generator would create the need for reinforcement on the Electricity North West distribution network as follows:

  • Green – Available spare capacity to connect DG.
  • Amber - Limited spare capacity constraining the ability to connect DG.
  • Red - Unlikely to have sufficient capacity to connect DG without reinforcement.

DownloadHV Thermal Capacity Map (PDF, 1.27MB)

To be able to connect your generation to the network there needs to be available capacity to accept the electricity.  The Thermal Capacity map illustrates the amount of spare capacity available when connecting generation at the busbars of a 33/11kV or 33/6.6kV substations.  The Red/Amber/Green on the Thermal Capacity map show the likelihood that a new generator would create the need for reinforcement on the Electricity North West distribution network as follows:

  • Green – Available spare capacity to connect DG.
  • Amber - Limited spare capacity constraining the ability to connect DG.
  • Red - Unlikely to have sufficient capacity to connect DG without reinforcement.

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Energy Solutions
Electricity North West
Frederick Road
Salford
M6 6QH

0800 048 1820 (Choose Option 2 and then Option 1) 
(Opening Hours: 08:00 - 17:00)

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Engineers are working to restore power to properties after severe flooding in Lancashire and Rochdale.

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