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Long term development statement

There is no charge for access to our long term development statement; however there may be costs for providing additional detailed information.

If you would like to view information in the secure information login page, you will need a user name and password.

  • To obtain a login, please use the contact details on the LTDS contacts page.

Additional information

Other detailed information can be provided for specific parts of the electricity network on request and may have associated charges, as listed below.

  • Please apply for "Other Detailed Information" via the LTDS contacts page.

 Examples of the information that can be provided are shown below:

Network Data

  • Circuit complex impedance (including zero sequence) and rating
  • Circuit susceptance data for voltages other than 132kV
  • Feeder load data (Amps)
  • Group load data (MW and MVAr)
  • Equivalent short circuit impedance at a busbar
  • Firm capacity of a substation

Plant Data

  • Circuit breaker fault level ratings
  • Transformer impedance, rating and tap range (including earthing details and hot site identification)
  • Transformer zero sequence reactance data

Fault level studies (including limitation on fault level)

  • 11kV Fault level study (RMS break currents decremented to expected protection operation time)
  • 33kV Fault level study
  • 132kV Fault level study
  • Indicative cost of work to reduce the limitation on fault level

There may be a charge for the provision of additional detailed information. Indicative costs are available from the Electricity distribution & metering charges page.


Please allow 6 - 8 weeks from the date of receipt of payment before receiving other detailed information.

Please also note the charges in the above statement for system and fault level studies only include initial study.

If you would like further studies following the initial study, these will incur the same charge again.

Are you a priority customer?

We appreciate that some customers have additional requirements and may have circumstances where a priority service is needed for a variety of reasons.

Learn more

Knowledge centre

Find answers to questions about Electricity North West, including details on electricity connections, power cuts and general enquiries

Check out frequently asked questions and our user guides.

Read more

Major incident

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

We are doing everything we can to restore power and we'll update you regularly on our news section and TwitterFor emergencies, please call us on 0800 195 4141.