CSIRO's cheap solar energy centre: photos Summary: The CSIRO yesterday began installing 450 large mirrors, known as heliostats, in order to create a large solar-thermal tower system in the hopes of fostering cheap solar energy. By Suzanne Tindal | October 26, 2010 -- 23:33 GMT (16:33 PDT) Follow @engochick Previous | Next Image 7 of 7 (Credit: CSIRO) Excavations in progress. Topic: Emerging Tech Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.