That includes its reservoirs in & Ballymore Eustace and Leixlip.
ESB is again issuing a warning about swimming in its Kildare water courses.
Its in light of the warm weather.
ESB operates the Golden Falls reservoir in Ballymore Eustace, another in Leixlip, and Poulaphouca, just over the border, in County Wicklow.
It says it would like to " remind the general public of the dangers and potentially serious consequences of swimming in any ESB reservoir."
It adds "These areas are not appropriate for swimming because of the risk of deep and fast-flowing waters, changing water levels and uneven ground."

Celbridge Woman Anne Ebeling Named Kildare Family Carer Of The Year
Kilcullen's Nolan Butchers Wins National Retail Business Award
Kildare Residents To Join Dublin Protest Against Data Centre Developments Today
Kfm Obituary Notices
Unsafe Disposal Of Nitrous Oxide Canisters A "Major" Issue, According To KCC
Kildare Represented By Three Teams At National Bowls Competition
National Parents Council Conference Taking Place In Kildare School This Weekend