Generator application / commissioning forms
Links to standard generator application, commissioning confirmation and de-commissioning forms are provided below:
- G98 Form A application for multiple installations
- G99 Standard application form (IMPORTANT – this form must be used for generation with an aggregated capacity above 75A per phase where the connection is required after midnight 26th April) From here can you link to the ENA website in a similar manner as to all the others.
Should the information required in Part 4 not be available at the time of submitting your application, these may be submitted separately using the individual documents below:
- G99 Part 4a Synchronous power Generating Modules
- G99 Part 4b Power Park Module model data: Fixed speed induction generating units
- G99 Part 4c Power Park Module model data: Doubly fed induction generating units
- G99 Part 4d Power Park Module model data: Series inverter connected generating units
- G99 Part 4e Power Park Module model data: Electricity storage plan
- G99 Part 4f Transformer information
- G59 Fast Track application form (valid for energy storage that complies with the requirements of ENA ERG100). Further information available here)
- Energy Storage System - Further information request (additional form to be completed by customers who are applying for a storage connection)
Commissioning confirmation forms
- G98 Form B installation document
- G98 Form C type verification test report
- G83/2 Commissioning confirmation form (valid for all G83/2 compliant installations rated up to 16A per phase)
- G59/3 Commissioning confirmation form (valid for all G59/3 compliant generation)
- G59/3 Protection commissioning form (additional form for non-type tested generation)
- G59 Fast Track commissioning form (valid for energy storage that complies with the requirements of ENA ERG100). Further information available here)
Separation between wind turbines and overhead lines
Although connection requests for wind turbines/ farms are treated individually, the Energy Networks Association (ENA) have produced some “best practice” guidelines when locating them in the vicinity of overhead lines.
Engineering Recommendation L44 highlights two criteria when considering the location of wind turbines:
- The turbine should be located sufficiently distant to avoid toppling onto an overhead line;
- The turbine should be located sufficiently distant from an overhead line to avoid damage caused by wind wake effects.
In order to prevent any potential damage to an overhead line, the above criteria can be met by ensuring the minimum horizontal distance between the turbine and overhead conductors is the greater of the following:
- The tip height of the turbine + 10%;
- The tip height of the turbine + the electrical safety distance applicable to the voltage:
System Voltage (kV)
Falling towards line with conductor hanging vertically
- Turbine rotor diameters x 3.
Any projects where turbines encroach on one or all of these distances should be drawn to the attention of the local WPD District Office at the earliest opportunity to resolve any potential issues at development stage.
For further information, please go to the ENA website.