Nuclear energy originates from the splitting of uranium atoms – a process called fission. This generates heat to produce steam, which is used by a turbine generator to generate electricity.

Produces a large amount of energy for a small amount of fuel.

Once you put nuclear fuel in the reactor, it can produce energy for 2 or 3  years continuously, we don’t need to put fuel again and again. 

 No greenhouse gas is emitted while producing Nuclear Energy.

Disadvantages: 

Major hazard of Nuclear Power Generation is the disposal of used fuels that are radioactive.

Improper Nuclear Waste storage and disposal results in environmental contamination.

There is a risk of leakage of Nuclear Radiation.

Nuclear fuels like Uranium have limited availability.

Setting up a Nuclear Energy Power Plant has a high cost (initial cost of building the nuclear power station / costs of disposing of the radioactive spent fuel and decommissioning the stations at the end of their working lives.  )

Have to be dealt with very carefully to avoid harm to the surroundings. 

Atucha 2 has followed suit. Each has a pressure vessel. Two-thirds of the energy is coming from plutonium, giving it the highest conversion rate of any non-breeder

Embalse In 1967  a larger plant at Embalse in the Córdoba region, 500 km inland appeared. The Embalse plant entered commercial operation in 1984, running on natural uranium fuel. It operated continuously until December 31, 2015 when its first operating cycle ended and the Life Extension project began. The plant successfully brought its reactor to critical on January 4, 2019, initiating the second operating cycle for a 30-year cycle.

Wind is actually a form of solar energy. For as long as the sun shines and the wind blows, the energy produced can be harnessed to send power across the grid.

Disadvantages: The wind is inconsistent. Wind turbines are very expensive. It may reduce the local bird popullation. They can be safety hazard. Electricity from wind energy must be stored (eg. batteries). Wind turbines are a potential threat to wildlife such as birds and bats. Deforestation to set up a wind farm creates an environmental impact.
Wind Farms are very noisy. People cannot live nearby.

A large amount of energy was suddenly released, and two explosions ruptured the reactor core and destroyed the reactor building. One was a highly destructive steam explosion from the vaporizing super-heated cooling water; the other explosion could have been another steam explosion or a small nuclear explosion, akin to a nuclear fizzle. This was immediately followed by an open-air reactor core fire that released considerable airborne radioactive contamination for about nine days that precipitated.

Experts estimate Chernobyl could be habitable again anywhere from 20 to several hundreds of years.

 All plants use the energy extracted from expanding gas, the steam or combustion gases. 

Russel Ohl, an American inventor on the payroll of Bell Laboratories, patented the world's first silicon solar cell in 1941. This led to the production of the first solar panel in 1954 by the same company. Solar panels found their first mainstream use in space satellites. For most people, the first solar panel in their life was probably embedded in their new calculator.

The rays of the sun fall on to the solar panel that, for example, are placed on the roof of a house or in space 

Solar panels collect clean renewable energy in the form of sunlight and convert that light into electricity which can then be used to provide power for electrical loads

Agostina Gigante

Governments around the world are taking a big step with solar energy and it is being used to power trains, buses and even the international space station.

Photovoltaic solar is used to power everything else that’s electrical. It can be used on homes or even on top of city buildings or transport.

Some solar panels  have micro inverters, in other words, each solar panel generates its own current and energy. Others may require an inverter for the entire string system.

Tidal energy is a renewable energy powered by the natural rise and fall of ocean tides and currents (Tides are very long-period waves that move through the oceans in response to the forces exerted by the moon and sun. Tides originate in the oceans and progress toward the coastlines where they appear as the regular rise and fall of the sea surface.). During the 20th century, engineers developed ways to use tidal movement to generate electricity in areas where there is a significant tidal range, the difference in area between high tide and low tide. All methods use special generators to convert tidal energy into electricity. The kinetic energy from the natural rise and fall of tides is harnessed and converted into electricity.

Tidal energy has a lot of advantages such as:

and disadvantages such as:

Tidal barrages are usually installed at tidal inlets or estuaries. Tidal energy works via a turbine  like a wind turbine, with blades rotating 12-to-18 times a minute depending on tide strength. During an incoming high tide, water flows over the turbines as the water rises. Then, the water flows back through the turbines as it becomes low tide. 

The turbine is connected to a gearbox that turns a generator, creating electricity.Tides are easily predictable.

Tidal energy is used all around the world. Some examples can be:

Swansea Bay Tidal Lagoon, United Kingdom – 240MW. 

Sihwa Lake Tidal Power Station, South Korea – 254MW.

La Rance Tidal Power Plant, France – 240 MW

Coal reserves are found in every country, the largest reserves are found in the United States, Russia, China, Australia, and India. Millions of years ago, these areas were lush, swamp forests with many trees that provided the organic material to make coal.

But, it also has some disadvantages as:

"A hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity. ... This, in turn, causes electricity to flow and a voltage to develop at the generator output terminals."

Limited Plant Locations. ...

Higher initial Costs. ...

Carbon and Methane Emissions. ...

Susceptible to Droughts. ...

Flood Risk.

Hydroelectricity makes it possible to utilize other renewable sources. ...

Hydroelectricity promotes guaranteed energy and price stability. ...

Hydroelectricity helps fight climate changes. ...

Hydroelectricity improves the air we breathe.

At hydropower plants water flows through a pipe, or penstock, then pushes against and turns blades in a turbine to spin a generator to produce electricity. Run-of-the-river systems, where the force of the river's current applies pressure on a turbine.

Itaipu, Brazil & Paraguay – 14GW.

Xiluodu, China – 13.86GW.

Guri, Venezuela – 10.2GW.

Belo Monte, Brazil – 9.39GW.

Grand Coulee, USA – 6.8GW.

Xiangjiaba, China – 6.4GW.