Solar Thermal

In the year 2009, the year 2GreenEnergy was launched, the world of renewable energy had high hopes for the technology shown at left.  At the time, solar thermal had a huge advantage over competitive approaches to clean power, in particular, the fact that the energy generated by the array was heat, and the storage of heat energy in huge vats of molten salt was extremely inexpensive, compared to the storage of electrical energy in batteries.

While the storage issue remains alive today, the cost of energy from solar PV and wind has sunk to the point that solar thermal is no longer competitive.