Energy

[Wind, solar, and hydroelectricity are three emerging renewable sources of energy.](By Jürgen from Sandesneben, Germany - Flickr, CC BY 2.0, Link)

Hydrocarbon and fuel produced from it are the main sources of energy. This is starting from wood firewood, and ending with gasoline and gas. This type of energy is relatively cheap, which is its advantage over non-fuel energy sources, which for some reason are called renewable sources of energy, such as the sun, wind and natural water streams, despite their significant environmental impact. advantage???.

[Oil refineries are one way hydrocarbons are processed for use. Crude oil is processed in several stages to form desired hydrocarbons, used as fuel and in other products.](CC SA 1.0, Link)
I have questions about the environment and the benefits. The fact is that the electromobile does not do harmful emissions into the atmosphere, for example, as a thermal power plant. But to eoetkromobil ride, you need batteries, and this is environmentally harmful production, especially their disposal. And again, we need the electric power that is produced, all at the same power plant, which produces it with the help of a gas turbine and gas, producing all the same emissions into the atmosphere, except in a place where the car mixes. I do not see it, so it's not there. But the damage probably even more.
The fuelless energy sources have another huge drawback: this is not constancy. Solar panels produce energy only during the day, wind generators are effective only in windy weather, tidal power plants give energy only in the active phase of the tide and ebb, all the rest of the time they are passive !!! Even at hydroelectric stations of large rivers, there is a surplus of fresh water in the flood period, a deficit in winter and during a summer drought !!!
Of course, it is possible that the uniformity of energy production can be solved with the help of small energy storage devices, at times when there is no consumption of energy and use in times of increased consumption.

[The upper reservoir (Llyn Stwlan) and dam of the Ffestiniog Pumped Storage Scheme in north Wales. The four water turbines at the power station can generate 360 MW of electricity within 60 seconds of the need arising. Taken by Adrian Pingstone in 1988 and released to the public domain.](By Arpingstone at English Wikipedia - Transferred from en.wikipedia to Commons., Public Domain, Link)
And the last moment is not less important. Energy must be available anywhere. And this is perfectly ensured by hydrogen.
Let's sum up what kind of ideal energy a person needs.
1. The energy should be at affordable cost and in sufficient quantity.
2. Accessibility 24 hours a day and anywhere on Earth, in the most remote and inhabited corners.
3. And of course environmentally friendly.

Well, now offer your options for energy.