Victoria's RayGen is a finalist in the InnovationAus 2023 Awards for Excellence for its thermal energy & storage innovation.
It involves a field of mirrors, used to focus sunlight onto a receiver tower with solar modules that generate electricity. Water is also pumped up and down the tower, capturing the heat in a pit of hot water nearby. This water is then used to drive a turbine and generate electricity. RayGen, based in Melbourne, has projects in regional Victoria, SA and NSW.
It's backed by Equinor Ventures, SLB, Chevron Tech Ventures, Photon Energy Group, AGL Energy & Australian Gov.
https://www.innovationaus.com/the-solar-thermal-storage-pioneer-capturing-energy-after-dark/