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Green energy

Alternative Energy Sources








What is green energy?

Traditionally, when electricity is generated we use resources that are running out and damage the environment, such as oil and coal. These resources are known as fossil fuels which are not sustainable. Using fossil fuels to generate electricity releases CO2 into the environment, which contributes to global warming?

Green energy uses the Earth’s natural, renewable, resources to produce electricity and as such cause little or even NO harm to the environment.

Contact CSI for more information on how you can use green energy.


Renewable energy

Renewable energy includes resources that rely on fuel sources that restore themselves over short periods of time and do not diminish. Such fuel sources include the sun, wind, moving water, organic plant and waste material (biomass) and the earth’s heat (geothermal). Although the impacts are small, some renewable energy technologies have an impact on the environment.


What is global warming?

Global warming is the unnatural increase in the Earth’s surface temperature, which has become increasingly apparent since 1880. The cause is an increase in the concentration of greenhouse gases, such as carbon dioxide. CO2 is released when fossil fuels are burnt in the process of making electricity.


Green and sustainable energy solutions do not use fossil fuels. They use the natural energy our planet and Sun produces. There are many reasons why we should go green:


What is micro generation?

Micro generation uses low carbon energy technologies, like solar panels or wind turbines, to create electricity or heat in homes, businesses or community buildings. This electricity or heat is described as low or zero carbon energy because it creates a low amount of carbon emissions (or none at all) when it's produced.


The benefits of micro generation


Micro generation can reduce the use of fossil fuels that are harmful to the environment. It can also save you money on your fuel bills in two ways:


  • producing your own energy from renewable sources could be cheaper than buying energy from energy companies
  • if you generate more electricity than you use, you can sell it to energy companies, using Feed-in Tariffs (FITs)

The FITs scheme guarantees a minimum payment for all electricity you generate and a separate payment for the electricity you export to the national grid. This is in addition to the bill savings you make by using the electricity you generate. For more information on FITs, see the information on the Energy Saving Trust’s website.


If you're considering using micro generation, remember that upfront costs can be high and payback times can be long. Some technologies might cost you more to install than you will save afterwards in the form of reduced energy bills. However, micro generation can increase your property value, and you may want to weigh up the financial costs with how much it will benefit the environment.


Wind power

The winds that blow across the UK can be harnessed by turbines to provide electricity. Wind turbines sited in suitable locations already provide a small, but growing percentage of the UK's electricity and are used successfully all around the world. In fact wind power is one of the world’s fastest growing energy sources! Wind turbine technology has greatly improved over the last ten years, making wind turbines quieter and more efficient so that electricity generated from the wind is now often competitive with traditional coal-fired and nuclear power stations. Wind turbines are also beginning to be built at sea — in the future much of our electricity could come from these offshore wind farms.

Solar power

Many people believe that we don't get much solar energy here in the UK. In fact solar power is already being used to provide essential power for many types of equipment being used in both remote and urban areas across the country. A solar photovoltaic (PV) module works by converting sunlight directly into electricity (even on cloudy days) using semiconductor technology. The vast majority of solar modules available today use ‘waste’ silicon from the computer chip industry as the semiconductor material. They can be integrated into buildings and even made into roof tiles virtually indistinguishable from normal tiles.

Solar energy can also be used to heat water directly using specially designed collectors. Even in winter a useful amount of hot water can be produced from roof top collectors. A third way to use solar energy is simply to design buildings to make maximum use of the sun. Using this so-called 'passive solar' approach, much of the energy that we currently use for heating, lighting and air conditioning can be saved.


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