The way I read it they don’t need storage technology. They’re trying to boost power output of the existing plant during the daytime when demand is pretty much at its peak and power is most expensive to generate from coal due to having to start & stop generators.
It means they can run the coal-fired part of the plant at a more even load to save both on coal usage and wear and tear etc. – and hopefully avoid any future expansion of it.
A different angle on the same issue is why we have cheap electricity at night – the power utilities trying to encourage people to reduce peak-time demand (although this arrangement will have to change when we start using a lot of solar power).
It’s a small start…
44MW of CLFR (Compact Linear Fresnel technology which developed by Australian David Mills commercialised at Ausra and now owned by Areva) and will generate 44000 MWh/year of energy i.e. around 1000kWh per kW.
They are using Solar Thermal to provide additional heat and will reduce the amount of coal required to generate the same amount of energy. CLFR is closer to Parabolic Trough technology than to the BZE ZCA Power Tower proposal and I don’t believe this project will have storage.