In space there is no place to take energy, except from the Sun. In addition, the costs are not particularly considered here. That is why both the lunar rover and the ISS catch rays not attenuated by the atmosphere with their silicon panels

In space there is no place to take energy, except from the Sun. In addition, the costs are not particularly considered here. That is why both the lunar rover and the ISS catch rays not attenuated by the atmosphere with their silicon panels. In space there is no place to take energy, except from the Sun. In addition, the costs are not particularly considered here. That is why both the lunar rover and the ISS catch rays not attenuated by the atmosphere with their silicon panels.
To begin with, we find out whether the summer sun is already generously scattering its energy on the Earth's surface. Pay attention to the map: in the tropical zone for every square meter there is 350 W, and in our case there is a deep purple color of the graph, which means a much lower specific power. In addition, after converting this energy into current by solar panels, still inefficient and terribly expensive, about twenty percent remain.
We offer curious readers the task of arithmetic: estimate how many square meters you need to cover with silicon panels to get, say, a kilowatt of power that can move a lightweight such a single car. And now it’s worth going to the store, where a 5 W panel is offered for … 4400 rubles!
Nevertheless, states, large companies, and enthusiasts are building solar power plants, electric cars, electric planes, etc. Because, once you have invested, then you will get returns for many years, unless you spend on cleaning the panels from dust.
The small roof of the “smarts” participating in the car2go rental program, which is gaining momentum in a number of large German cities, is enough for only 100 watts. They recharge the battery, feed on electronic telematics systems … and a fan, a cooling cabin when parking in the sun

The small roof of the “smarts” participating in the car2go rental program, which is gaining momentum in a number of large German cities, is enough for only 100 watts. They recharge the battery, feed on electronic telematics systems … and a fan, a cooling cabin when parking in the sun. The small roof of the “smarts” participating in the car2go rental program, which is gaining momentum in a number of large German cities, is enough for only 100 watts. They recharge the battery, feed on electronic telematics systems … and a fan, a cooling cabin when parking in the sun.
They learned to bypass the daily cycle of sunlight by accumulating energy in batteries and combining stations in large networks: while one is resting at night, the other gives current. Achievements of electronics have made possible the following process: if the roof of your cottage is covered with photocells working on a common electric grid, the meter will rotate in the opposite direction during the day, reducing the final count.
And now - from words to deeds, that is, to pictures that visually represent the modern use of solar energy:
The sun moves a carriage with eight tourists along the 60-kilometer route of the Solarban railway in Buchhorster (Germany)

The sun moves a carriage with eight tourists along the 60-kilometer route of the Solarban railway in Buchhorster (Germany). The sun moves a carriage with eight tourists along the 60-kilometer route of the Solarban railway in Buchhorster (Germany).
The battery on the roof of the sun rail is not too powerful: only 360 watts. Therefore, in order to overcome this segment, one has to first accumulate energy for a long time in two batteries of 120 Ah each. Engine power is limited to 3 kW. They say that the car could accelerate to 50 km / h, but for safety reasons, it’s not allowed to gain more than 15 km / h.
The Aurora Vehicle Association has been building solar cars since 1987 and is involved in numerous sun trips.
Aurora 101

Aurora 101 Aurora 101
The current model "Aurora-101" with a length of 4.1 m has only one place. The entire roof with an area of about 6 m² produces 1250 watts, driving a 160-pound (without driver) three-wheeled sunbolide. Part of the energy stored in the battery for trips at night.
Small solar panels feed the batteries of flashlights "fused" into the asphalt and illuminating the markings at night (England), parking meters (Germany), traffic lights (Japan)

Small solar panels feed the batteries of flashlights "fused" into the asphalt and illuminating the markings at night (England), parking meters (Germany), traffic lights (Japan). Small solar panels feed the batteries of flashlights "fused" into the asphalt and illuminating the markings at night (England), parking meters (Germany), traffic lights (Japan).
Honda launched a prototype solar gas station in Los Angeles. With the help of solar energy (the battery is visible in the background), water is decomposed into hydrogen and oxygen.
Prototype Solar Hydro Fuel Station

Prototype of a solar gas station. Prototype of a solar gas station.
There is enough current to operate a compressor that compresses gas up to several hundred atmospheres. As a result, the hydrogen “Honda-FCX Clarity” in operation is 100% environmentally virgin.
In Cologne, an electric filling station has appeared for the small yet hybrid Toyota Prius Plug-in.
Power station

Electric gas station Electric gas station
Its roof in good weather is enough to give out 2 kW. After standing under it for several hours, then you can drive about 20 km, not including the gasoline engine and inspired by the thought of an invaluable personal contribution to environmental protection.
In Dartmouth runs a sunny … taxi.
Solar taxi

Solar taxi. Solar taxi.