In this video the topic revolves around the history and economics of solar thermal power plants. The first section gives an outline of the historical use of solar thermal power plants, starting with the beginning of the last century. The second section is about a forecast for the dissemination of solar thermal power plants in the next 30 years. In the third and last section, we address the calculation of the Levelized Cost of Electricity (LCOE) of solar thermal power plants and compare them to competing power generation systems. This open educational resource is part of "OER4EE - technologies for the energy transition".