This is the 1st example of our idea, and these mirrors direct solar radiation to the top of the tower where the radiation is converted into thermal energy to produce steam for a turbine. The efficiency of turbines is only a few tens of percent, and the remaining 60...80 % of the energy is thrown away, but that power plant does not throw away the heat, but directs it to these greenhouses for their space heating. It is obvious that sales of the heat to greenhouses provide additional money which can radically reduce the cost of electricity from similar solar power plants.

Unfortunately, the heat sales in the case of this Australian power plant reduce the cost of its electricity by only a few tens of percent, but this video will describe two methods of connecting a greenhouse and a turbine, which reduce the cost of electricity several times. That is why the following two methods lead to the fact that our solar electricity becomes cheaper not only than electricity from thermal and nuclear power plants, but also cheaper than solar panels, especially in Europe, Canada and the northern United States.

We understand that this is not the only type of mirror systems, and now I am showing other types of mirror systems for generating electricity, without any tower, and they can sell thermal energy to greenhouses too. In addition, my YouTube channel studies cheaper types of mirror systems that will suit us even more.

One of my old videos described solar power plants consisting of a large number of mirrors which produce a lot of solar thermal energy to heat a large mass of soil through pipes. The heating of the mountain occurs during sunny summer to a temperature of approximately 300 ⁰C, and then this thermal energy is stored for several months so that we can use it to produce electricity during the non-solar winter.

This outer layer of soil, several meters thick, serves as a thermal insulation, but it is obvious that some of the thermal energy will be lost due to heat leakage. That my old video showed the results of calculating the heat leakage for the case of an artificial mountain with a volume equal to 4 pyramids of Cheops and such dimensions. It was found that 7 % of the thermal energy of the mountain will be lost through its bottom, and another 8 % will be lost through the top and sides of the mountain.

Many of you have already come up with the idea to place a large greenhouse here, and especially interesting is the location of greenhouses here, on the southern slope of our mountain. We understand that such greenhouses will be heated by the heat leakage and other options which will be described later. Unfortunately, the surface area of our artificial mountain is not large, and therefore most greenhouses should be located not on the mountain, but around our power plant, and they should be heated according to the 2nd and 3rd options.

The 2nd option for heating greenhouses occurs through these pipes on the periphery of our mountain, at a depth of several meters from its surface or several meters above this groundwater. The greenhouses are heated by warm water which circulates between these pipes and greenhouse heating pipes. It is interesting that the heat extraction through these pipes reduces the temperature of the periphery of our mountain, and this phenomenon leads to a decrease in these heat leakages to the outside of our mountain, although it increases these heat flows.

The 3rd option for heating greenhouses was described at the beginning of the video for the case of this Australian power plant, when the warm water for greenhouses is heated by condensation of steam after the turbine. The 3rd option covers about 90 % percent of the heating needs of greenhouses according to approximately this graph, where the maximum heating is during these winter months, but these autumn months and these spring months also require a small heating of the greenhouses.

This is the production of the electricity during 12 months of a year, and we understand that this part of the thermal energy is emitted into the atmosphere. It is obvious that this part of the heating needs of greenhouses is covered by the 2nd option, that is, by the heat from the periphery of our artificial mountain.

It is interesting that the production of our solar electricity during these summer months is slightly less than during these winter months. It is a radical advantage over solar panels which have such a winter dip, 7 times less in winter in Finland, or 3 times less for Southern Europe.