Alternative & Renewable Energy

Electricity is very important to modern society. Without it, most of us would be left in the dark – literally. The most common method of producing electricity is to change mechanical energy (the turning of turbines), into electrical energy, through the use of electromagnetic induction. Electricity can also be obtained directly from [...]

Geothermal energy is rarely discussed, but it is no less clean than other sustainable energy sources. There are even plans at Google which aim to harness the sheer amount of energy available beneath the earth’s surface. It is believed that 140 million exawatts of power exists beneath America’s crust…

You will often hear politicians, environmentalists and economists – and everyday people – discuss the need to use renewable energy sources to meet our needs, stop rising prices and avoid exhausting the planet.  But what is a renewable energy source?  Is this any different from a sustainable energy source?
For everyday purposes, a renewable energy source [...]

Here we explore the concept of clean electricity as it pertains to renewable energy. While renewable energy is mostly carbon neutral, some forms do not emit carbon emissions at all. This is ideal for reversing climate change and removing the excess carbon dioxide from the atmosphere, which has been caused by the industrialisation of the world.

Generating electricity is fairly easy.  All you need to do to get a bit of electricity going is to knock a few electrons off here and there, and you’ll get a bit of charge.  Anyone can do it – all you need to do is stroke a cat in dry weather, rub a balloon with [...]

 
Green electricity, as used in appliances and the like is a very clean form of energy, as it does a lot of work and produces no emissions.  Contrast the pollution produced by, say, a coal-fired steam-train with an electric tram.  Electricity is even found in nature in things like lightning, electric eels and even the workings [...]

Here we take a look at hydo electric energy and how the wind is harnessed. There are many practical applications for harvesting water power and governments recognise that as they build dams to collect water for drinking and to power neighbouring communities.

We all need energy.  This doesn’t just mean within our bodies (for which we need food, sleep and good health).  We need energy to heat ourselves, manufacture goods, travel, have fun, cook our food, help us see at night time and more.  Some forms of energy we use are renewable; others are non-renewable.
Non-renewable sources of [...]

Hydro electricity (which is sometimes spelt hydroelectricity) is a widely used form of renewable and environmentally friendly electricity generation that is low in emissions, uses no fossil fuels and creates little or no pollution.
Hydro electricity works on the same basic principle as the old water wheels and water mills used to use. Water flows [...]

This article looks at the most common types of renewable energies in use today. Namely it looks at wind power generation, solar energy and hydroelectricity. Each of these three methods operate in different ways to generate electricity and energy into useful forms. Since these fossil fuels may soon be depleted, it’s important to look at renewable energy as an alternative and have an understanding of the major sources.