Assessment of the Technical Issues relating to Significant Amounts of EHV Underground Cable in the All-island Electricity Transmission System Public Report November 2009

TEPCO has carried out the following studies in order to evaluate the effect of cable
installations on the NIE/EirGrid network:
Part 1: Evaluation of the potential impact on the all-island transmission system of significant
lengths of EHV underground cable, either individually or in aggregate
Part 2: Feasibility study on the 400 kV Woodland � Kingscourt � Turleenan line as AC EHV
underground cables for the entire length
Part 3: Feasibility study of the 400 kV Woodland � Kingscourt � Turleenan line as mixed OHL /
underground cable

Tepco Report.pdf

LAOIS � KILKENNY REINFORCEMENT PROJECT: PROPOSED LAOIS�KILKENNY ELECTRICITY REINFORCEMENT SCHEME PUBLIC CONSULTATION ON A CONSTRAINTS STUDY AREA

Constraints map for public input by way of comments, information, submissions or queries.The input into the
constraints map will allow the procedure to the next stage in the process which is to identify potential route corridors within the study area.

Appendix F-1 Newspaper Notice 1 - Oct 2009.pdf

Investigating the Impact of HVdc Schemes in the Irish Transmission Network Report R1116.03.04 Final Report

The purpose of this study is to investigate the impact of HVdc schemes in the Irish Network and to compare these HVdc schemes to equivalent AC solutions for various scenarios. Four scenarios were investigated to compare various AC and HVdc schemes,

3-TRANSGRID-REPORT.pdf

Cavan-Tyrone and Meath-Cavan 400kV Power Lines Locating 400kV Cables in or Adjacent to Rail Beds EirGrid Document Number: CP466-ER030-00

While EirGrid is of the firm belief that undergrounding does not represent an appropriate technology
for the proposed 400kV projects or for the general development of the transmission system, in this
report, the considerations that would arise in relation to the use of the rail beds involved are examined.

2009.07.31 Reporton_considerations_of_railbeds.pdf