Solar energy debate

Lane Crockett

Mark Lawson’s “Solar hopes face harsh light of day” (February 20) discussed some of the challenges of integrating solar energy into our electricity network. It’s a worthy discussion given that solar has the ability to be one of the most cost effective, clean and sustainable forms of power generation in Australia. But statements underpinning the opinion are wrong and lack research. Lawson references the Solar Dawn project and the associated quantum public funding to make a point about the cost effectiveness of solar photovoltaics. Unfortunately his reference and calculations are based on a 250MW solar thermal project in Queensland. Assuming he meant to reference the 150 MW PV Moree Solar Farm in NSW, it undermines his opinion on large-scale solar.

He also suggests that there are problems reselling “tiny” amounts of power back into the grid from rooftop PV units. He then follows later to suggest that on sunny days there will be power surges in the suburbs which are beyond the control of grid operators. Given the average air-conditioner is larger than the average solar rooftop PV unit, his theory would suggest that turning your air-conditioner on or off suddenly (is there any other way?) will upset the balance in the distribution network.

Lane Crockett Pacific HydroMelbourne Vic

The Australian Financial Review