For an energy source to renewable it must be possible to replace it with its lifetime of use.. Fossil fuel energy is not a form of renewable energy as our consumption far outweighs the replacement of fossil fuels. There are various different forms of renewable energy, these include solar, wind, wave, geothermal and biomass. All of these energy forms are necessary in our energy future, however biomass offers several other benefits. As biomass is a tangible resource it fits in well with the market economy and trading. More jobs and income can be generated in biomass than the other renewable energy forms as jobs and income can be generated in the growing, upgrading into a usualbe form of energy and supplying it to the customer.

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Pellets are a common type of renewable energy, and a good example of how a biomass energy economy can be established. Jobs and income can be generated on the production of the wood raw material, the processing of the wood into pellets and the distribution of the pellets to the end customer. Pellets have a very high combustion efficiency producing very little smoke and ash. The low ash percentage also helps to keep manual maintenance to a minimum, much lower than burning wood logs for example. Also because of the uniform shape and size of the pellets, automate hopper feed systems can be used to feed the fire.

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Pellet presses, pellet mills or pellet machines are used to compress the raw wood material into pellets. To do this the raw material must be reduced to a uniform size through a hammer mill to a smaller diameter to the hole in the pellet press die. The raw material must also be fairly dry before entering the pellet mill. Heat and pressure are needed to gelatinize the wood and then the pellet press forms the melted wood into a pellet. When the pellets come from the pellet press they are very hot and still quite soft, and only become hard once they cool down. Once the pellets have been cooled before they are used they must be kept away from moisture. If pellets are exposed to moisture they will absorb it, they will also loose their mechanical strength and become a useless fuel.

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Climate change and global warming today are important issues, to combat the issue proactive change needs to take place to change our source of energy and reduce our energy consumption. Our current source of energy is predominantly from fossil fuels, this includes for example oil, gas and coal. By using these fuels however we are compromising air quality and dramatically increasing the levels of carbon dioxide in the atmosphere. Increased carbon dioxide means increased temperatures due to the green house effect. As the suns energy enters our atmosphere, a lot of the energy should bounce of the earth and be sent back into space. Carbon dioxide however reflects this energy back at the earth. Therefore the more carbon in the atmosphere the more energy is reflected back at earth and then increased temperatures result. We are now talking the impact of temperature change more seriously, as it impacts on every aspect of our lives, for everyone around the planet. The changes that are being made are to opt form sustainable, renewable and importantly low carbon forms of energy. These include wind, solar, wave, geothermal and biomass. Using these forms of energy are obviously an important factor in challenging climate change, however energy security is also a major benefit to changing our current energy system.

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Due to our increased use of energy, fossil fuels are not as abundant as they once were and a few countries control the main reserves. Issues are occurring between nations that hold the reserves and those that need the energy. These disputes are leading to major disagreements, with gas lines stopped, ever increasing price rises and also in many peoples opinion the cause of resent wars. The longer there is this unstable relationship with energy trading and energy consumption continues to increase, disputes and wars will continue. Therefore we need to adopt renewable energy technologies sooner rather than later to improve global stability. Many alternative energy sources can be setup is almost any location, hence the energy can be locally produced.

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Energy production within the country itself has several advantages; these include cheaper energy prices, stable energy prices, economic support in terms of increased employment and economic support in terms more money kept within the local economy. As energy transportation is minimized, prices for fuel will be reduced. Energy prices will become more stable as local energy production is less influenced by the global economy, political factors and currency exchange rates. Economic support is generated by providing long-term local jobs in the production, processing and distribution of renewable energy.

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