Solar concentrators are large modules that, unlike traditional flat panel solar cells, use automated systems to track the sun throughout the day to provide a much higher energy yield.
At a recent conference organised by the US Department of Energy's National Renewable Energy Laboratory, attendees were told the advent of high efficiency multijunction solar cells, combined with low-cost concentrators, could allow solar power generation at $US3 ($A3.99) per watt, opening the way for large-scale energy production.
The conference had three times the attendance of previous years, indicating the US solar market is growing rapidly, helped by the recent introduction of photovoltaic technology that could reach almost 40% efficiency. The industry growth was not limited to the US, with Australia's Solar Systems’ Dave Holland announcing another 5MW of PV concentrators to be installed in 2006.
"Solar Systems' experience gained from installing and operating reliable PV concentrator systems over the last decade combined with its strong relationship with Spectrolab Inc, a leading manufacturer of multijunction solar cells, is poised to make a major step towards being a mainstream power producer," Holland said.
"The new solar cell technology from Spectrolab will enable us to upgrade our systems from 24kW to 35kW – a 46% increase in output."
Meanwhile the Australian federal government's Solar Cities program has moved forward with the announcement of an expert panel to assess applications.
The panel will evaluate proposals submitted to the $A75.3 million project, and pass their recommendations on to the minister for environment and heritage Ian Campbell and the minister for industry, tourism and resources Ian Macfarlane.
The chair of the panel will be Professor Brian Spaulding, currently chief operating officer of the National Electricity Market Management Company.
Working with him will be senior public servants and consultants chosen to provide a wide base of experience that covers energy markets, government policy and scientific knowledge.
"This broad base of expertise is important because Solar Cities is all about creating sustainable communities through a combination of approaches including improved energy efficiency, smart meters, solar technology, and responsive pricing arrangements," said Macfarlane.
The panel will assess expressions of interest for the program over the next few months before shortlisted applicants are required to submit detailed tenders. Details of the Solar Cities locations are expected to be announced in early-to-mid 2006.
