2586. Hon Alison Xamon to the minister representing the Minister for Energy:
I refer to the roll out of 4000k streetlights in Perth residential areas, and I ask:
(a) were any trials for public feedback conducted prior to choosing these CCT lights;
(b) if yes to (a), could the Minister please table this feedback; and
(c) could the Minister please advise of the cost to replace a 4000k streetlight with a 3000k streetlight?
Hon Stephen Dawson replied:
(a) In 2016/17, Western Power conducted a tender event for the supply of LED luminaires to cover the streetlighting catalogue. A single product, the 4000K Correlated Colour Temperature (CCT) LED, was available for use by customers at their request.
4000K CCT luminaires were selected as at the time 3000K colour temperature technology was immature and resulted in luminaires with lower energy efficiency. The actual usage between 2016–2019 was very low.
Other utilities around Australia have adopted 4000K CCT for their streetlighting requirements.
Since 2016 LED technology has improved rapidly. Western Power’s main supplier of LED luminaires has improved the energy efficiency of its 3000K CCT product. Additionally, Western Power has received feedback from some customers indicating a preference for 3000K CCT streetlights, particularly in residential areas.
Western Power has responded to advancements in technology and to customer feedback through the introduction of 3000K CCT luminaires as an option in the streetlighting catalogue. 3000K CCT products have been available for design purposes since September 2019, and it is expected that stock will be available in January 2020.
(b) No trial was undertaken.
(c) Each light is costed on a case by case basis depending on its location, traffic management requirements and additional works.