Renewable Energy is one of the most read about and discussed topics in the world however various misconceptions remain about the advantages and disadvantages of renewable energy.Note Renewable Energy is a a very large topic and encompasses many different alternative energy forms which have their own distinct pros and cons.A Better Way to understand and explain Renewable Energy would be to look at each different forms of Clean Energy like Solar,Wind,Nuclear,Hydro,Tidal,Biomass and Geothermal Energy.Renewable Energy itself compared to Fossil Fuel forms of Non-Renewable Energy has substantial advantages and some disadvantages as well the biggest of which is Cost.Also note Fossil Fuel Energy has got a massive established base,industry and lobby.

The importance of Clean and Renewable Energy is growing driven by the twin factors of increasing fossil fuel prices and Global Warming.Other factors contributing to the importance and growing use of Alternative Energy is national energy security as geopolitical tensions in major oil and gas countries grows by the day.Also renewable sources of energy like solar energy promote the democratization of energy production which is centralized by power utilities today.There are a number of alternative sources of energy such as solar,wind,geothermal,tidal,hydro and nuclear energy.Some people may not consider nuclear and hydro energy to be green but it is a fact that these 2 energy sources do not produce GHG emissions and cannot be classified as fossil fuels sources.Each clean energy source has its own advantages and many of the pros overlap with each other as well.However each Green Energy source has its unique benefits which define and separate it from the other clean sources.While Renewable Energy advantages over Non-Renewable can be easily be understood as

Hydroelectricity is one of the largest sources of energy accounting for roughly 20% of the worldwide demand of electricity with around 800 GW of capacity installed.There is considerable potential still left and developing countries like India and China can be expected to install another 500 GW over the coming years.Hydroelectricity is very important as it does not lead to GHG emissions and contribute to global warming.It also does not have the drawbacks like other renewable energy forms of high costs and intermittency.The advantages of hydroelectricity are substantial enough to far outweigh any disadvantages.But like nuclear energy,hydro power has some tail risks which can lead to catastrophic damage.The costs of hydroelectricity are not a simple function of dollar costs.It should also take into account the massive displacement costs in case of massive hydro dams,the loss of ecology and potential tails risks which can lead to massive payments.

India’s Green Companies are seeing tremendous growth backed by the nation’s massive energy demand increase.The 8% Plus Economic Growth coupled with the already massive electricity deficit which makes brownouts of 8 hours a day normal in many places in the country provides the macro background underpinning the growth.India’s Green Industry is still in a nascent state compared to the massive solar and wind industries in countries like China and Germany.However attracted by the massive potential a number of companies small and large have entered the fray.Most of India’s large energy groups,utilities have already established a small presence or are in process of doing so.While Wind Energy is the largest Renewable Energy Industry in India after HydroElectricity,Geothermal Energy is non-existent without a single large commercial plant.Biomass Energy is quite well developed and Solar Energy is the fastest growing Green Industry.Here is a comprehensive list of the Green Companies in India operating in the different Alternative Energy Sectors.

Hydroelectricity power plants are the biggest power stations in the world dwarfing the biggest nuclear and coal power projects.The world’s biggest power plant is the Three Gorge Dam in China which at 22.5 GW is more than 50% larger than the 2nd biggest power station in the world.Most of the world’s largest hydroelectricity plants in the world are situation in China and South America.North America also has some of the larger hydro power plants.China is the by far the world leader in hydro power plant capacity with around 200 GW which it aims to double to around 400 GW by 2020.Other major hydroelectricity countries are Canada,USA,Brazil and India.Note Hydroelectricity is responsible for producing around 20% of the world’s electricity.Here are some of the major world hydroelectricity power plants .

Hydroelectric Dams have disadvantages which are quite different from those of other forms of renewable energy like solar, wind, geothermal or nuclear energy. Hydro Power in small sizes which is constructed keeping nature in mind has almost no drawbacks, however the big Hydro Power Dams have some sizable problems. Some of these are tail risks […]