Green Energy – What Are the Different Types?

 

What is greenenergy? There are many people who still don't fully understand what this type of energy is and why we need it. Alternative energy is any type of energy that is sustainable and is fully renewable. Examples of these are solar, wind, water (hydro), biomass and geo-thermal.

Alternative energy will eventually take over from the mainstream sources such as coal and gas which are non-renewable and are fast becoming too hard to extract, not to mention too expensive. For now, however, they remain on the fringe due to the fact that many of them are still in the experimental stage, or they are expensive to set up.

Solar power is one alternative energy that is probably most used in domestic homes. In sunny climates solar panels can generate quite a lot of energy which can be stored in batteries if unused. Excess solar energy can also be sold back to the electricity grid. Solar panels are expensive to install, despite government grants, so should be viewed as a long term investment.

What Are the Human Causes of Climate Change?

These days the world is divided into two camps; those who believe in the devastating effects of greenhouse gas emissions and those who think it's a huge fuss about nothing. So who is wrong and who is right?

 

Only the future will reveal that, however there is growing evidence that greenhouse gas emissions are causing global warming effects such as climate change and global warming.

Whether you believe in the effects of greenhouse gas emissions or not, there is no escaping the fact that our major source of fuel, coal and gas, are fast running out and there has to be some other reliable sources of energy to replace them.

 

Alternative energies such as solar, gas, geothermal and tidal energy are being used in a small way, but there needs to be a greater political and public awareness of the need for these alternative types of energy and funds made available for their development.