Construction project
Fieldstown 110 kV Substation, North Dublin
The Fieldstown Substation site is located near Rolestown in North Dublin
Find out more about the Fieldstown Substation project below
July 2026
Energia Renewables and Suir Engineering have started construction works on the site of the Fieldstown 110 kV Substation, near Rolestown.
This substation will connect three nearby Energia solar farm developments to the electricity network at Finglas 110 kV Substation via a 13.3 km underground cable.
Together, these solar farm developments will help Ireland reach its renewable electricity targets, reducing our reliance on fossil fuels and increasing security of energy supply.
Download our April 2026 information brochure here.
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We know it’s important that you get the information you need, so please include Fieldstown grid route in your email subject line because we have a number of construction projects underway.
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Project overview
The new 110 kV substation will facilitate the export of renewable energy to the national grid from the Fieldstown, Ballaghaweary and Gerrardstown solar farm projects.
Energia will be investing around €45 million in this new substation development, which will make significant annual rates contribution to to Fingal County Council.
Grid connection and road works
The grid route will connect the Fieldstown Substation to the transmission network at Finglas 110 kV Substation via an underground cable.
The grid connection is approximately 13.3 km in length and will follow the path of the R122 onto L7235 and L7231 before returning to the R122 and heading west alongside the M50, under the N2 to the boundary of Finglas Substation.
We’ll be providing text message updates about our underground cable road works as we move along the route in scheduled phases.
Fieldstown Substation FAQs
How big is the site? What about construction traffic? Will the site be lit up at night? We’ve compiled a list of the most frequently asked questions and answers.
Photomontages
We have created a set of photomontages, which are visual representations of what the substation will look like from different viewpoints around the site.
Please note: These photomontages are best viewed on a large screen.
Contact us
If you have any questions about any of our solar developments or renewable energy projects, please contact our Community Liaison Officer by email at clo@energia.ie, or phone +353 (0) 8794 60284.
Fieldstown 110kV Substation coordinates
