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RENEWABLE ENERGY

SOLAR POWER PLANT

In order to secure and enduring lifestyle, reliable and environment friendly Electrical energy development projects are essential for our world. a successful Solar power generation plant's important criteria is sun radiation.

The main advantages of the solar energy is very simple in structural; no running parts no need much maintenance. One simple example for 1 MW power plant can maintain by one skilled man power. its generate electrical energy up to 25 years without any big maintenance. Solar powerplants are not emit any type of hazardous things. If you calculate environmental safety and maintenance cost of traditional power plant, solar energy generation is very economical one in the world.

A Solar PV Power plant is a concept of generating electricity from the sun and converting it to the AC energy that we use in our daily lives. PV modules are installed on fixed metallic support structures arranged in long rows, adequately spaced themselves, facing south (in the Northern Hemisphere) with an appropriate tilt, or deployed on tracking devices to follow the sun.

PV modules are electrically connected together in series and parallel and then connected by DC cabling to the centralized inverters which convert DC power into AC power. String Inverters are connected together, on AC side, to the plant Medium Voltage network, and then the produced energy is delivered to the HV or EHV Grid by means of one or more step-up transformers.

For an explanation of the above you can see the images in the below:

ilustration

Benefits of Renewable Energy are:

  • Environmental
  • Renewable energy technologies are clean sources of energy that have a much lower environmental impact than conventional energy technologies.

  • Energy for the future
  • Renewable energy never runs out. Other sources of energy are finite and will someday be depleted.

  • Jobs and the economy
  • Most renewable energy investments are spent on materials and workmanship to build and maintain the facilities, rather than on costly energy imports. Renewable energy investments are usually spent within the U.S.: frequently in the same state, and often in the same county. This means your energy dollars stay home to create jobs and to fuel local economies, rather than going overseas. Meanwhile, renewable energy technologies developed and built in the U.S. are being sold overseas, improving the U.S. trade deficit.

  • Energy security
  • In the last few decades, our nation has increased its dependence on foreign oil supplies instead of decreasing it. This impacts more than just our national energy policy. Our nation's energy security continues to be threatened by our dependency on fossil fuels. These conventional energy sources are vulnerable to political instabilities, trade disputes, embargoes, and other disruptions.

HYDRO ENERGY

Hydroelectricity is electrical energy generated when falling water from reservoirs or flowing water from rivers, streams or waterfalls (run of river) is channelled through water turbines. The pressure of the flowing water on the turbine blades causes the shaft to rotate and the rotating shaft drives an electrical generator which converts the motion of the shaft into electrical energy. Most commonly, water is dammed and the flow of water out of the dam to drive the turbines is controlled by the opening or closing of sluices, gates or pipes.

This is commonly called penstock. Hydropower is the most advanced and mature renewable energy technology and provides some level of electricity generation in more than 160 countries worldwide. Hydro is a renewable energy source and has the advantages of low greenhouse gas emissions, low operating costs, and a high ramp rate (quick response to electricity demand), enabling it to be used for either base or peak load electricity generation, or both.

Hydro means water. Hydro-electric means making electricity from water power.

Hydroelectric power uses the kinetic energy of moving water to make electricity. Dams can be built to stop the flow of a river. The river is simply sent through a hydroelectric power plant or powerhouse.