Connection of

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Connection of Exporting Generation To ESB
Networks Michael Regan
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• ESB Network brief overview
• GPA Non GPA Interactions
• NC5 form necessary requirements
• Load v Generation

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Distribution system
110kV
38kV
NO
38kV
38kV
MV
MV
G
LV
LV
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The Application Process NC5 Form
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GPA Non GPA
640MW connected DSO 958MW Contracted
DSO 4,888MW in Gate 3 Gate 4 Queue DSO 78MW
Offers Contracted 88MW Biogas CHP under
review 100MW Thermal under review 14MW LFG under
review 2MW Wind Hydro under review Wave Tidal
under review
GPA
Non GPA
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To be processed outside of GPA must meet the
following criteria

• Non interacting
• Equal or less than 0.5MW
• Request to be processed outside of GPA
• Greater than 0.5MW but satisfy benefit which is
  in the public interest

Coordinates MEC Generator type Supporting Letter
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Interactions
110kV
38kV
NO
38kV
38kV
MV
MV
G
G
LV
LV
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Technical Study

• Volt rise
• Conductor capacity
• Transformer capacity
• Conductor losses
• Loss of feeder

Coordinates MEC MIC Generator type
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Energistation Operation of network

• Protection settings of ESB equipment
• Installation of additional protection equipment
• Constraints Eirgrid
• G10 protection

SLD Short Circuit levels Generator type Metering
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Connection Agreement

• Legal Document
• Contract between ESB and Company
• One and only one connection point - MPRN
• Capacity bond 90 of MEC must be attained

Owners Signature Landowners signature Company
details Contact details
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Requirements for export of electricity
Distribution Code conditions MV connections
require DSO control ? Nulec Recloser G10
compliance Metering read on quarterly hour basis
via dedicated phone
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Load V Generation
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Voltage rise And Volt Drop
On MV Network Volt Drop is 5 Volt rise is 1
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The percentage rise of 1 or 1.5 takes into
account the resolution of the tap changer which
is 1. (for 20kV the resultant is approx
21.41.011.01
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Gen
Load
Volt Rise 2.78 outside standard of 1
Volt Drop 2.78 Within standard of 5
Both Load Generation 6MW 100sca Line
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