Posts Tagged ‘Renewable’
Renewable Energy – Practical Home Options
May 13, 2012 | 
Author As a homeowner, you may be using renewable energy sources. Let’s look at a few of these important, powerful sources.
If you use solar powered lights to brighten your walkway, a solar cover on your swimming pool or hang your clothes out to dry, you are already making use of the sun’s renewable energy. There are many other renewable energy home options you can take advantage of, and by doing so, help preserve our environment.
The most practical of renewable energy options for the home consist of space heating and domestic hot water. This is over 50% of a household’s energy usage. In using renewable energy we can experience cost saving benefits.
Perhaps the best way to take advantage of renewable energy home options is when designing a new house. A southern wall taking advantage of an appropriate amount of windows can take full use of the low sun in the winter. Adding a roof overhang over these windows allow the higher summer sun to be blocked. Also, on a cool day you can open your windows to let a breeze cool off the house and make use of wind energy. You have achieved adding heat in the winter and coolness in the summer, thereby lowering your heating and cooling costs naturally. This is called passive solar heating since it is integrated with no extra costs. You can also do day lighting by taking full advantage of the sunlight during the day to take care of your daytime lighting needs.
Wood stoves can also be advantageous, if using only dead wood, diseased wood or small pellets made from wood chips, crop waste and other organic material for burning. This is a renewable source of heat through the use of space heating. Modern wood burning stoves are highly efficient, making it a more practical option.
A homeowner can also utilize active solar heating. A solar water heater can use renewable solar energy to heat water for a house. This would use solar collector panels placed on a roof. Water runs through pipes under these panels and is heated by the sun. The water travels to a water tank in your home for your use. Electricity can also be produced for a home using the photovoltaic technology. This runs on the same idea as a solar calculator. Solar electricity is ideal for rural homes where it would be difficult to run an electric line to.
Geothermal heat pumps use the heat from the Earth to move heat from one area to another. This system uses a series of underground pipes to move a heat exchange fluid. The heat pump moves this fluid, heated from the earth and transfers it to buildings for use. Initial installation costs are much the same as traditional heating systems, but operational costs are lower.
If you live in a windy part of the country and have quite a bit of land, wind can power a wind turbine to produce electricity for your household. But your location must be ideal to catch wind and you must be able to capture a certain amount for this to work.
These are some home options for renewable energy sources. By trying to utilize some of them we are preparing for our future by using clean energy that does not affect air quality or harm the environment.
The Importance of Renewable Energy Resources
The modern lifestyle depends tremendously on the use and existence of fossil fuels. With levels of these fuels constantly decreasing, we should act now to become less dependant on fossil fuels and more dependent on renewable energy sources.
The decreasing levels of fossil fuels isn’t the only reason why we should begin to use renewable energy. Pollution is becoming a huge problem in many countries around the world, especially the developing world. With carbon emissions at an all time high, air quality can be very low in some areas, this can lead to respiratory diseases and cancer.
The main reason to switch to cleaner energy production methods is the global warming aspect. The more carbon dioxide we pump into the atmosphere, the greater the effect becomes. We can’t just stop using fossil fuels thinking that global warming will go away, but we can slow down and dilute the effects of global warming through the wide spread use of renewable energy resources.
There are many natural energy sources out there, but you have to decide which method is best for you, as all of these sources depend on your current environment.
The installation of a solar panel or a wind turbine to boost every homes power supply would be an amazing step forward. Some governments are in the process of supplying solar panels to hundreds of households to test this method of energy saving.
A technology set to be very important in the future is geothermal energy. With geothermal energy, you are able to extract heat from within the earth and transform it either into a hot water system, or if there is plenty of this energy, a geothermal power plant. Huge amounts of money have been flowed into research of this method, especially in recent years, in order to make the current technology more effective.
So there we have the reasons why we should turn to renewable energy resources which are more than likely to play a very vital and important role in our future society.
The CRC Energy Efficiency Scheme – A Review
We are now well on the road to the end of the first year of the CRC Energy Efficiency Scheme.
We’ve had the scare stories, the organisations failing to register, or less organisations registering than were first thought. First estimates from the Government suggested 5000 plus organisations would be full participants with a further 20,000 as information disclosures.
We’ve had just over 3,700 full participants register, what does this communicate to us?
For me, based on my research, it tells me that a lot of organisations didn’t understand what they needed to do. For example, a car dealership, an example Defra used in their literature, if that dealership was a single franchise, SEAT for example, then if a single SEAT dealer anywhere else in the UK had a half hour meter then ALL SEAT dealerships and SEAT companies were in, under the banner of SEAT, who had the responsibility of collating this information. That’s nice and simple, until you then look at if that same dealership had say SEAT and VW at the same premises, they’re out? Add to that the ability to register independently so the SEAT brand did not have to account for everything that traded under its name . . . confused . . . therein lies the problem!
At least the Con/Dem co-alition government has pushed back the full implementation of phase 1 of the CRC by 12 months, the same for Phase 2.They are also looking at making the scheme simpler, firstly by making it a Tax, no payments from the pot for those that reduce emissions the most, Good or Bad?
For me it’s a bit of good and bad, organisations no longer being rewarded for reducing emissions will need to find some other motivation to reduce emissions! The good side is that it is giving these organisation more time to get to grips with the scheme, however, as experience has shown, a lot of organisation left it to the last minute before registering for the CRC, will they do the same again?
Initially Phase 1 reporting is primarily about Scope 1 & 2 emissions, Scope 1 being based on energy you produce, for example if you had a wind turbine and selling electricity back to the grid, Scope 2 is for energy you purchase.
However Phase 2 of the CRC is interesting, as it suggests that Scope 3 emissions will be included in a company’s declaration, a good way of introducing mandatory emissions reporting for all via the back door. Scope 3 covers everything from Travel to Suppliers.
If we look at suppliers for a large organisation, this could easily be in the thousands, a local authority I recently met with, have in excess of 5000 suppliers, under phase 2 they will need to liaise with all 5000, collate the emissions data for those 5000 and submit under the local authorities umbrella.
This will be an administrative nightmare for the unprepared, both the supplier and the large organisation. This will mean that for those who tender for work from larger organisations it will no longer be just a tick box exercise for environmental policy, such as ISO14001, it will be a detailed report on emissions and those not able to submit such a report, will ultimately, not win any business.
At Be Seen Go Green, we offer solutions for a variety of Environmental issues. Please click on the following link to contact us.
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The Differences Between Clean Energy, Renewable Energy, and Alternative Energy
To many people, the differences between “alternative energy,” “renewable energy,” and “clean energy,” might not be obvious. But each term is unique and has its own individual definition. These three terms are not all exactly the same.
Alternative Energy
When we speak of alternative energy, we refer to sources of usable energy that can replace conventional energy sources (usually, without undesirable side effects). The term “alternative energy” is typically used to refer to sources of energy other than nuclear energy or fossil fuels.
Throughout the course of history, “alternative energy” has referred to different things. There was a time when nuclear energy was considered an alternative to conventional energy, and was therefore called “alternative energy.” But times have changed.
These days, a form of “alternative energy” might also be renewable energy, or clean energy, or both. The terms are often interchangeable, but definitely not the same.
Renewable Energy
Renewable energy is any type of energy which comes from renewable natural resources, such as wind, rain, sunlight, geothermal heat, and tides. It is referred to as “renewable” because it doesn’t run out. You can always get more of it.
People have begun to turn to this type of energy due to the rising oil prices, and the prospect that we might one day deplete available sources of fossil fuels, as well as due to concerns about the adverse effects that our conventional energy sources have on the environment.
Of all the different types of renewable energy, wind power is one which is growing in its use. The number of users who have some form of wind power installed has increased, with the current worldwide capacity being about 100 GW.
Clean Energy
“Clean energy” is simply any form of energy which is created with clean, harmless, and non-polluting methods.
Most renewable energy sources are also clean energy sources. But not all.
One such example is geothermal power. It may be a renewable energy source, but some geothermal energy processes can be harmful to the environment. Therefore, this is not always a clean energy. However there are also other forms of geothermal energy which are harmless and clean.
Clean energy makes the less impact on the environment than our current conventional energy sources do. It creates an insignificant amount of carbon dioxide, and its use can reduce the speed of global warming – or global pollution.
As you can see, alternative energy, renewable energy, and clean energy are very similar. But it is important to know that there are differences.
There are many actions which can be taken, to help reduce the greenhouse gases in our atmosphere. Some of these steps can be taken in your own home. Many clean energy solutions can can be easily installed, and some kits are quite affordable.
Carbon emissions and other forms of pollution are not only created by heavy industrial factories. They are created in the common household as well. Energy efficiency has become an important aspect of our lives.
It’s important to start making changes now; if we want to save our planet for our children, for the flora and fauna of the Earth, and for the future of mankind. Clean energy, to be exact, can make a big difference.
Posted in Energy | Tags: Alternative, Between, Clean, Differences, Energy, Renewable | No Comments »
How You Can Convert Your Home Into a Complete Source of Renewable Energy
A few years ago renewable energy such as solar power and wind power was an impossible dream for the average person. Why? It was very very expensive to turn your own home into a solar power generator. In fact you were unlikely to ever make your money back with the energy savings. But recently all of that has changed.
Both solar power and wind power have become genuine alternative energy sources in the last few years. And the best thing is, you can create working generators and plates/turbines yourself, for very little cost. This means you will be saving thousands of dollars making them, and then thousands more when they are up and running.
Has there ever been a better time to get green? Not only is electricity the most expensive it has EVER been right now, but the planet is also in the worst shape it has ever been. What do these two things mean for you? They mean you should try and generate some of your power (even if you only decide to make 20% of your own power).
It is not hard to get the materials, and as long as you have a good manual to follow you should easily be able to implement your own system and start saving money on your bills. Solar power is ideal for just about any home in America (amongst other countries). Wind power is ideal for higher up (hilly terrain) locations or large flat locations. On top of saving a lot of money or your bills you will find yourself having fun with a great family project.
UK Must cut Emissions By 60%
The Committee on Climate Change has called on the UK to reduce its emissions by 60% compared to 1990 levels over the next two decades.
In its report ‘The Fourth Carbon Budget – Reducing emissions through the 2020s’ the committee puts the case for creating a new marker in the battle to cut emissions.
At present most targets are aimed at cuts on 1990 emissions levels before 2050. But to drive the fight against climate change the committee suggests a plan as part of a carbon budget for 2023 to 2027 and a target for emissions reductions in 2030, which would be halfway between now and 2050.
The recommended target for 2030 is to cut emissions by 60% relative to 1990 levels, or 46% relative to current levels, which needs a 62% emissions reduction from 2030 to meet the 2050 target in Britain’s Climate Change Act.
The committee estimates the recommended target can be achieved at a cost of less than 1% of our Gross Domestic Product (GDP), or as it states in the report ‘a fraction of one year’s growth’ over the next two decades.
It also backs that new carbon budgets should be legislated by summer 2011, as required under the Climate Change Act.
Committee on Climate Change chair said: “We are recommending a stretching but realistic fourth carbon budget and 2030 target, achievable at a cost of less than 1% of GDP. “Any less ambition would not be compatible with the 2050 target in the Climate Change Act. “We therefore urge the Government to legislate the budget we have recommended, and to develop the policies required to cut emissions over the next two decades. “The case for action on climate change is as strong as ever: climate science remains robust and suggests that there are very significant risks if we do not cut emissions. And countries acting now will gain economic benefits in an increasingly carbon constrained world.”
The CBI’s director of business environment, backed the new 2030 target. He said: “We support the UK’s existing climate change targets for 2020 and 2050 and businesses are already taking steps to measure and reduce their emissions. “The Committee’s proposal for an extra staging post at 2030 could provide additional clarity for investors, but the feasibility of the proposed target would need to be examined in detail. “Investors will only commit to low-carbon projects if they are confident about the policy framework in the long-term. “The Government’s forthcoming announcements on reform of the electricity market and work to simplify the Carbon Reduction Commitment will be crucial tests.”
At Be Seen Go Green, we offer solutions for a variety of Environmental issues. Please click on the following link to contact us.
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Solar Tower – renewable energy green global warming
EnviroMission Limited (www.enviromission.com.au) produced this 5 minute video on the pilot plant in Spain. It is an older video (2000) but gives a decent understanding of the solar tower concept. EnviroMission, Ltd. (US Market: EVOMY, Australian Exchange: EVM) is a renewable energy developer of sustainable “green” energy solutions for the energy market. EnviroMission aims to be one of Australia’s leading producers of clean renewable energy. EnviroMission holds the proprietary rights to Solar Tower technology, a large-scale renewable energy technology based on simple fundamentals of physics — hot air rises. Solar Tower technology has the potential to offer competitive renewable energy with equal reliability to fossil fuel generators. A single 200MW Solar Tower power station will provide enough electricity to power around 400000 households. The energy output will represent an annual saving of more than 1960000 tonnes of greenhouse CO2 gases from entering the environment when compared to brown coal emissions in Victoria. The greenhouse savings equate to the removal of approximately 500000 cars from the road. The Australian Solar Tower project consists of six distinct phases, the first two of which (project optimization and pre-feasibility commercialization) have already been completed. The third phase (final feasibility), paving the way for the implementation of the next three phases (final design, construction, and commercial operation).
New Plastic Recycling Discovery!
A new method has been developed to recycle plastic which would normally end up in landfill.
Currently approximately 12% of plastic found in household plastic and packaging is currently processed.
Now, however, a process has been developbed by Warwick University which could mean 100% of this type is waste can be recycled.
Municipal plastic solid waste is often too time-consuming and labour intensive to separate and clean and ends up going straight to landfill rather than being recycled.
Engineers at the University have invented a process that can cope with every piece of plastic waste and can even break some polymers, such as polystyrene, back down to its original monomers.
The researchers have devised a unit which uses pyrolysis (using heat in the absence of oxygen to decompose of materials) in a ‘fluidised bed’ reactor.
Tests have shown that the researchers have been able to literally shovel in to such a reactor a wide range of mixed plastics, which can then be reduced down to useful products. Many of these products can then be retrieved by simple distillation.
The products the Warwick team have been able to reclaim from the plastic mix include: wax that can be then used a lubricant; original monomers such as styrene that can be used to make new polystyrene; terephthalic acid which can be reused in PET plastic products, methylmetacrylate that can be used to make acrylic sheets, carbon which can be used as Carbon Black in paint pigments and tyres, and even the char left at the end of some of the reactions can be sold to use as activated carbon at a value of at least £400 a tonne.
This research could have a significant impact on the budgets of local authorities and produce considerable environmental benefits.
The lead researcher on the project, University of Warwick Engineering Professor Jan Baeyens, said:
“We envisage a typical large scale plant having an average capacity of 10,000 tonnes of plastic waste per year.
“In a year tankers would take away from each plant over £5 million worth of recycled chemicals and each plant would save £500,000 a year in land fill taxes alone.
“As the expected energy costs for each large plant would only be in the region of £50,000 a year the system will be commercially very attractive and give a rapid payback on capital and running costs.”
The work will be of great interest to local authorities and waste disposal companies who could use the technology to create large scale reactor units at municipal tips which would produce tanker loads of reusable material.
At Be Seen Go Green, we offer solutions for a variety of Environmental issues. Please click on the following link to contact us.
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Ocean Tidal Power as Renewable Energy
One of the Earth’s great renewable energy sources is actually the energy that can be found in all the waves of the ocean. Let’s look at this further.
If you have ever been to the ocean, you were probably fascinated by the phenomena of the waves crashing against the shorelines as the tides came in. The ocean’s tides are the product of gravitational pull of the sun and the moon, as well as, the Earth’s rotation. It causes the ocean waters to be raised and lowered from time to time. The tides have cycles of twelve and one half hours, twice per day, and are easily predictable.
The use of tidal power is seen as early as the twelfth century where tidal mills used the force of the tides to grind grain and corn. The eighteenth century brought competition from windmills and waterwheels. Tidal mills pretty much became extinct with the invention of cheap steam engines. In 1967, France became the first to be able to put tidal wave power to work on a large scale to produce electricity.
The generation of electricity from tidal waves is similar to that of hydroelectric power generation. Bigger dams, known as barrages, are built on the bottom of a tidal basin. Gates on the barrage allow the tidal basin to fill during incoming high tides. Likewise, the basin will empty through a turbine during the outgoing tide. This would turn an electric generator for the production of electricity. There are also systems that generate electricity from incoming and outgoing tides. This system can have a negative effect on plants and animals in the area.
Tidal fences are also used to generate electricity. Vertical axis turbines are mounted on fences. Passing water is forced through the turbines. Ideal locations for these are channels between two landmasses. Tidal fences are cheaper than tidal barrages and cause less of an environmental impact on large marine life.
Tidal turbines are a new technology used for tidal energy. They are similar to wind turbines and are arranged underwater in rows. They work best in areas with strong tides. Although they are heavier and costlier to build, they also are capable of capturing more energy. They are also the least environmentally damaging of all the tidal power technologies, since they do not interfere with migration paths.
In order for tidal power to work successfully it requires a tide difference of at least sixteen feet. Unfortunately there are only a few places where this occurs. This means tidal power plants cannot just be constructed anywhere. There are only a handful of sites on Earth with this type of tidal range. At present, France is the only country that has been successful in using tidal power. It is hoped developments in technology, through research, will be made to allow better use of this, what is now, wasted energy. The future of tidal energy seems hopeful. Tidal power has great potential and hopefully we can make better use of it in the future in our quest to find a replacement for fossil fuels.
Renewable Energy From the Deep Ocean
Ocean Thermal Energy Conversion (OTEC) process and an ideal location in Puerto rico