These images and charts are from our annual report from 50 years ago covering the 12 months ending 31st March, 1966.
A year which saw increased domestic, industrial and commercial activity and a growth of almost 10% in demand for electricity.
1965/66 also saw the end of the original Rural Electrification Scheme and two charts above show the progress of annual connections since 1948.
The night time shot of Dublin used for the cover features the then recently completed Liberty Hall.
A full copy of this report, along with all our other annual reports since 1928, is available to download here.