COMHAIRLE CONTAE ÁTHA CLIATH THEAS
SOUTH DUBLIN COUNTY COUNCIL

MEETING OF SOUTH DUBLIN COUNTY COUNCIL

Monday, February 13, 2012

QUESTION NO. 14

QUESTION: Councillor W. Lavelle

To ask the Manager to advise if a cost-benefit assessment has been conducted on the extension of active dimming technology to the remainder of the county’s street-lighting network?

REPLY:

South Dublin's Public Lighting division continues to seek lighting solutions that meet targets for reducing energy consumption, and at the same time comply with norms and standards that ensure safety for all road users.

Active dimming technology is being assessed in the context of a general improvement in the Public Lighting asset and the continuous review of savings.

Out of a total of approximately 30,000 Public Lighing Columns in use in the County some 1300 (4%) have this technology in place and it is considered that there is benefit to be gained in terms of energy saving and remote realtime status fault indication. This is of considerable benefit leading to a faster response and higher quality of service. These upgrades will continue on a phased basis as part of the Public Lighting maintenance and renewal programme,  heavily trafficked national and regional routes will be prioritised in the first instance. This can be the source of major savings in energy use on PL schemes. With the trend towards metered systems SDCC should benefit significantly from a cost point of view.