Hydroelectric dams with tens of millions of tons of steel and concrete have already blocked two-thirds of the world’s major rivers. They block nutrient flows necessary for ecosystems to function and block fish migration routes over the past 50 years the number of species of flora and fauna in freshwater. This loss of biodiversity can be called the sixth mass extinction on the planet. Human activities that require more and more energy every year perhaps we were wrong when we chose renewable energy as our new goal. Today you’ll find out that not everything is so simple.

Solar Power

The world’s largest solar power plant Ben Ban solar park Egypt on the outskirts of the Sahara desert. The world’s first energy park visible from space. The capacity of this power plant is 1800 megawatts which is 80 percent more than the power of the reactor that exploded at the Chernobyl nuclear power plant. I think that this comparison alone should convince you in favor of solar energy because Ben Ban solar park will never explode.

An area of 37 square kilometers is completely covered by 6 million PV modules but think about it the area of the hot Sahara is 9 million square kilometers. It’s almost the territory of countries such as the united states or china that can easily accommodate two hundred and forty thousand such parks.

Amin Al Habebe professor at Nottingham Trent University is confident that the Sahara desert alone is capable of providing an amount of environmentally friendly electricity. That is seven thousand times greater than the needs of all of Europe and easily compensates for the energy consumption of all of mankind.

      Now we have to point out the fly in the ointment here. There are not so many places like the Sahara on our planet transmitting electricity over long distances by wire to Europe or America can make it several times more expensive to deliver energy not only during the day but also at night. An incredible number of giant batteries would be needed. It makes the project even more expensive. The problems of recycling a huge number of panels and batteries containing Lead, Cadmium, Gallium Arsenic will raise the price of this environmental friendliness to completely unacceptable figures after all the volumes of such decommissioned equipment will be comparable to Everest.

Solar energy fanatics simply refused to economically calculate. These threats in addition to a sandstorm in the desert are capable of causing an energy collapse for naive consumers at any moment covering the panels from the sun with a layer of sand. Yes with an energy park the size of the Sahara not everything is as simple as it seems but we sure that stations like ben ban solar park will still be developed even if only in hot countries

Wind Power

The generation of wind energy doesn’t require large areas. It can be used in places other than deserts and doesn’t require transportation costs. This is the Ji Kwan power base in Gansu province China the largest onshore wind farm in the world. ( insert a picture of Ji Kwan power base)

Its capacity is eight gigawatts but according to the plans of the Chinese government shortly, it will grow to 20 gigawatts which will be generated by 7 000 towers with giant blades. This is more than four times the total capacity of six blocks of the Fukushima one nuclear power plant. It’s nice to know that such power no longer belongs only to traditional power generation using coal gas and uranium but this is not the limit. Every year the power of the projected installations and stations will only increase and we hope that the planet’s atmosphere will also become cleaner every year.

You already guessed that wind energy is also not such a simple solution. Wind doesn’t blow everywhere and so the opportunity to build gigantic installations. Everywhere doesn’t exist and so the same question of the unpredictability of power generation remains in the calm the blades of the giant installations will be motionless. We’ll have to not only turn off and defrost refrigerators in our apartments but also shut down metallurgical plants which require a continuous cycle of metal smelting wind power still can’t provide an answer to all of our problems.

Tidal power

Now let’s try to approach renewable energy sources from the other side. This is a tidal power plant located off the coast of the yellow sea in shiva artificial bay south Korea. It uses the ebb and flow of the ocean. The energy of hundreds of trillions of tons of water moves under the influence of the moon’s gravity. The station’s capacity is relatively low only about 250 megawatts, even so, the tidal power plant is already capable of fully meeting the needs of a city with a population of half a million people. There are only about a dozen tidal power plants on the planet today including experimental ones. But many countries are already preparing projects for such tidal power plants. Only one of these projects the Panjinskaya tidal power plant in the sea of Ohio. Russia has an incredible capacity of 87gigawatts and this is more than one-third of the electricity generation of all modern Russia. There’s a surprise for environmental optimists too the construction cost is estimated at an equally incredible amount more than a quarter of a trillion dollars. They’re very expensive to build and can only generate energy twice a day for several hours but they have trump cards that more than makeup for all the shortcomings.

They generate extremely cheap electricity while preserving the natural balance in ecological systems resources come and go replacing each other. what was previously not considered an energy resource then with the development of technology suddenly begins to be used as a source of energy and with each new resource humanity grows by leaps and bounds increasing in number.

The first energy source was firewood after Europe’s forests were cut down mankind found another resource coal. Eventually, the use of firewood declined oil replaced coal, and then came nuclear power plants. After a few tragic disasters, we began to learn how to extract cheap energy from sustainable sources and if we master this step then really fantastic opportunities will open up before us.

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