Browsing Tag Electricity

The True Cost of Renewable Energy
What does renewable energy cost? Isn’t it still more expensive than fossil fuel electricity? Way more? In a word: no.

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Anything that can be used to make heat or electricity without unsustainable fuels and which does not make a net contribution of carbon dioxide to the atmosphere. This includes wind power, waves and the tides, solar energy, geothermal energy and biomass. Nuclear power, although it is low-carbon, cannot be counted as a renewable source of energy because its fuel, uranium, is finite.
How does all of that help our future? Thank you.

Can someone please explain if and how I can buy renewable energy certificates for my apartment electricity use. My local energy company does not currently provide renewable energy and I am under the impression I can buy certificates from renewable energy companies and use those certificates to pay for my current electric bill.

Can you please explain this process.

From environmental dangers to higher costs with electricity, are several that are questioning the alternatives for keeping the lights on without burning the same amount of fuels.  One of the main concepts that is becoming known to others is the use of renewable energy.  This concept uses natural resources from the earth and reuses them to help with your heating, lighting or other electricity needs.  Understanding types of renewable energy as well as how they can assist you is the beginning to getting the best assistance for the energy you need.

The problem that many are finding with energy sources that are currently used is a combination of costs and environmental problems.  Using the traditional means of energy, such as electricity and gas, also leads to the burning of fossil fuels.  This burns fuels as it moves into the environment and contributes to air pollution and other forms of pollution.  More than this, many are finding that fossil fuels, such as gas, are not reusable.  This is leading to fewer supplies of gas and other forms being available for use.  The result is higher prices of electricity, as it has become a commodity for those that are still using this source.

The main concept that is related to renewable energy is based on using natural resources as a main component for energy.  Resources such as wind, the sun or hydroelectricity is the most common resource needed.  These are known as renewable types of energy because they not only contribute to the use of energy through natural resources, but also because they are renewable.  Instead of burning, like regular fuels for electricity, they are able to recharge and can be reused for the same electrical purposes.

With the main ideal of renewable energy, are several who are combining technological components with natural energy to begin to alter the current systems for electricity into new ways that use renewable sources.  Instead of burning fuels, many are finding different alternatives to assist in the resources desired.  Most of the renewable energy sources that are used combine solar paneling or a main component that is able to store the natural components of the resources used.  This then filters into an area to be used as a device for electricity, heating, air conditioning or other needs whenever a household needs the extra device to work.

Not only are the main building options available for renewable energy, but different ways of getting renewable energy in your home are also used.  For instance, if you are considering solar energy, then using panels as well as specific devices that allow you to add in this type of energy to your home is known as an effective alternative.  Investigating to find what type of renewable energy can provide you with the best results is essential to getting the results you desire, while providing you with the needs you have for getting the energy desired.

As you are working on the renewable energy for your home, you want to make sure that you consider the options for building, while gaining an understanding of what renewable energy is and how it can be used best.  The specific ideals that are linked to this as well as the components that drive the energy forward is a simplistic way to save with the environment and allows you to cut the costs of your energy bill from the gas and electric that is burned.

The need for alternative energy sources is getting urgent, hence the development of renewable energy is moving fast. Nationally and internationally various individuals and research companies are creating new and exciting energy systems. Some of these apparatus are great works and need improving for massive use. Politician’s world-wide are drafting policies and are making agreements to make greater use of these energy sources.

You can ask yourself why there is a growing need for other energy sources. What is wrong with the sources which we are using now? There are big problems with the fossil fuels we use today.
The first problem is that the fossil fuels are depleting in a rapid rate and are harder to retrieve. The consequence is that we can be facing an energy crisis in the future is we are not careful today. The energy prices will sky rocket and not be available for many individuals or countries. To avoid this doom scenario we need to find alternatives and used them to their full potential. Luckily this is already happening.

The second problem is that the fossil fuels that are widely used today are harmful for the environment. In the early seventies and eighties there were people and even scientist who preach otherwise, but today the negative effects are showing. The earth is warming up and climates are changing. There are parts in the world were there be more rain and sunshine and others parts will be come dryer then they already are. Another negative effect is that the ozone layer is getting thinner which also leads to a warming up of the earth. These two effects compliment each other and make it even more crucial to make another step in a different direction. This step will lead us to the use of renewable energy.

Another problem lies in the development of small economies. Because the energy prices for crude oil are going through the roof, these countries suffer even more. Many of these countries need crude oil for their electricity and means of transportation. These high oil prices have their effect on almost everything. The monthly electricity costs for households increase among others like transport cost and prices for basic products. Hence, these high oil prices make it harder for these small countries to grow there economies.

The solution for the above problems can be resolved by renewable energy. Our beautiful planet gives us the opportunity to make proper us of sunlight, flowing water, strong winds, and hot springs and convert these into energy. These energy sources are abundant and free to use. We must be sure that we convert the energy the right way, without causing other problems that can again hurt our environment. Luckily the many efforts by individuals and companies show that this can be done.

• 12 experiments and building projects
• Harness mechanical energy from water to do physical work
• Generate electricity to light an LED
• Learn the physics of water turnies
• Discover why hydropower is a promising source of energy

Product Description
Hydropower has been used for hundreds of years in watermills and is now commonly used to generate electricity in applications such as hydroelectric dams and tidal power plants. Explore the power of water by building models and conducting experiments with them. Learn about how different devices are used to extract useful energy from moving water — from a waterwheel in a small stream to a giant turbine in a tidal power station.

Build a waterwheel, a sawm… More >>

Thames and Kosmos Alternative Energy and Environmental Science Hydropower

Across the world energy is being used at an alarmingly higher rate. This is due to rapid industrialization and increased awareness in the consumers. However, all this is taking toll on the fossil fuel reserves as they are depleting fast and their usage becomes expensive. Due to the depletion of non-renewable sources from the earth, people are exploring more ways to employ natural and renewable energy sources. Let us take a close look at the advantages and disadvantages of green energy.

The biggest advantage is that the renewable energy sources are unlimited and they can be used for millions of years. On the other hand the non-renewable sources are limited as they are contained in a reserved quantity below earth’s surface.

There are certain countries which are employing renewable sources to generate electricity. This has brought development and employment has increased. Apart from the economic benefit is great. There can be a boost in the tourism industry if the area which is benefitting from the green energy is continuously getting supplied by electricity.

As natural energy relies on weather condition, it is difficult to predict how much will be generated on a given day. But you can always store the excess energy in the batteries when the weather is favourable, so that you use it when the weather is not suitable.

Did you know that wind power is one of the oldest energy sources? Its conversion was used to propel the boats in ancient times. Presently wind is used mostly to generate electricity and is one of the most potent renewable energy sources. Wind energy will never pollute the environment and will not have any impact on the climatic changes. To add to this, 1 MW wind turbine will save approximately 2,000 tons of carbon dioxide per year. The wind energy is available abundantly and it is 5 times more than the world’s energy consumption.

Yet another advantage of wind and solar energy is that almost anyone can make equipment that will generate electricity using these sources. You can make enough energy to meet the demand of your home. It doesn’t require having a genius mind to make a wind turbine or a solar panel. There is a lot of information provided on the web to guide you to make your own facility. If you have your own wind turbine, you won’t have to worry about the power cuts. The wind power sector and solar power sector are becoming extremely cost effective with numerous researches being done so as to cut the installation cost and enhance the efficiency of the facility.

There are several countries which have wind power farms or solar power farms. They not only generate good amount of electricity, but they are off the grid. As a matter of fact some of them are supplying electricity to their local grids.

You can construct your own wind turbine or a solar panel in less than $200. There are many guides which can help you easily.

• ISBN13: 9780865715363
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Product Description
The coming energy crisis caused by a peak in global oil and natural gas production will profoundly affect the lives of all North Americans. As the price of these vital fuels rises, homeowners will scramble to cut their fuel bills. Two options for meeting the upcoming challenge are dramatic improvements in home energy efficiency and efforts to tap into clean, affordable, renewable energy resources to heat and cool homes, to provide hot water and electricity, and even… More >>

The Homeowner’s Guide to Renewable Energy: Achieving Energy Independence through Solar, Wind, Biomass and Hydropower

You think you understand renewable energy credits. You’re sure you understand Carbon Offsets. You are fuzzy on the details about how they differ and when the purchase of one or the other might be appropriate. Never fear! This article explains the key differences, and similarities, between the two.

The first difference is the way that offsets and Renewable Energy Credits (RECs) are measured. Carbon offsets are measured in metric tons of C02 or C02 Equivalent. Renewable Energy Credits are measured in kilowatt hours, which are a standard electricity measurement metric. A kilowatt hour is the amount of work that can be performed by one kilowatt of energy in one hour.

Picture a lonely, dim lightbulb hanging from the ceiling that turns on for one hour each day by which you feverishly darn socks in a carbon constrained world; that’s a watt, and for the privilege of its use, you’ll be charged for 1/1000 kwh of electricity each day. These days, you probably use a several kwh per day.

The second difference between carbon offsets and renewable energy credits is that renewable energy credits only come from renewable energy projects (solar, wind geothermal, biofuels, etc.) while carbon offsets can come from all different kinds of projects, including renewable energy generation, that reduce the level of greenhouse gases that are entering the atmosphere.

To put it another way, RECs are primarily concerned with promoting the generation of clean energy, while carbon offsets are primarily concerned with preventing the emissions that enter the atmosphere.

They are both systems that have developed to deal with global warming systematically, but they have different approaches. RECs are forward looking, focused on building a clean energy economy and providing an extra incentive for the creation of renewable energy, while carbon offsets are oriented in the present, dealing with preventing greenhouse gases from entering the atmosphere right now.

Because of these different measurement systems and the different foci of the two programs, RECs and carbon offsets have different precision rates when it comes to carbon. Carbon offsets are all about exactitude, and many of the discussions about the efficacy of offsets center around the degree of certainty a buyer has that the exact amount of carbon s/he has paid for is actually being prevented or captured. RECs, on the other hand, are measured in kilowatt hours, and the carbon content of that ‘saved’ kwh differs depending on the location of the project and the quality of the local electricity.

The dirtier the local electricity, the more carbon an REC ‘saves.’ Different utilities around the country use different mixes of energy sources, from coal to natural gas to renewables, to create electricity. These sources vary widely in their carbon content. To make matters even more confusing, a utility might even change the mix it uses depending on the time of day- when peak load sets in they might have to rely on dirtier power sources than they would otherwise.

So, it’s impossible to say exactly how much carbon a clean kwh of renewable energy ‘offsets.’ The closest we can get is to use the ‘emissions factor’ for energy from the local utility, which is the average emissions for the mix of sources that the utility uses to create power, and multiply it by the number of kilowatt hours to produce an estimate of the carbon saved per kilowatt. But it will always be an estimate.

This is not to say that RECs are no good. They are an extremely effective way to promote clean energy because they give the providers and extra incentive to keep creating clean energy and we need all the incentives we can get to move toward a clean energy economy. RECs just aren’t the most accurate way to offset carbon. I highly recommend using RECs to offset electricity use, because your electric bills will have a record of the exact number of kwh you used, and you can buy RECs to account for all the dirty emissions your plugged-in Macbook caused. Then, you can buy carbon offsets to cover all your driving and flying.

‘But what about renewable carbon offsets?’, you say. ‘Those seem like the best of both worlds!’ I’m getting there. Those are good to, and if you really value the promotion of clean energy despite some of the accuracy issues, you can buy renewable energy offsets. Many times offsets will actually come from the exact same projects as the RECs, but the nice thing about buying the offset version instead of buying RECs and doing the calculations yourself is that someone else, hopefully a third party verifier, is determining how much carbon each kwh of clean energy replaced. So you don’t have to! Rest easy, and lay off the carbon guilt.

We should be doing everything possible to develop geothermal energy technologies. This is a largely untapped area of tremendous alternative energy potential, as it simply taps the energy being naturally produced by the Earth herself. Vast amounts of power are present below the surface crust on which we move and have our being. All we need do is tap into it and harness it.

At the Earths’ core, the temperature is 60 times greater than that of water being boiled. The tremendous heat creates pressures that exert themselves only a couple of miles below us, and these pressures contain huge amounts of energy. Superheated fluids in the form of magma, which we see the power and energy of whenever there is a volcanic eruption, await our tapping. These fluids also trickle to the surface as steam and emerge from vents. We can create our own vents, and we can create out own containment chambers for the magma and convert all of this energy into electricity to light and heat our homes. In the creation of a geothermal power plant, a well would be dug where there is a good source of magma or heated fluid. Piping would be fitted down into the source, and the fluids forced to the surface to produce the needed steam. The steam would turn a turbine engine, which would generate the electricity.

There are criticisms of geothermal energy tapping which prevent its being implemented on the large scale which it should be. Critics say that study and research to find a resourceful area is too costly and takes up too much time. Then there is more great expense needed to build a geothermal power plant, and there is no promise of the plant turning a profit. Some geothermal sites, once tapped, might be found to not produce a large enough amount of steam for the power plant to be viable or reliable. And we hear from the environmentalists who worry that bringing up magma can bring up potentially harmful materials along with it.

However, the great benefits of geothermal energy would subsume these criticisms if only we would explore it more. The fact that geothermal energy is merely the energy of the Earth herself means it does not produce any pollutants. Geothermal energy is extremely efficient-the efforts needed to channel it are minimal after a site is found and a plant is set up. Geothermal plants, furthermore, do not need to be as large as electrical plants, giant dams, or atomic energy facilities-the environment would thus be less disrupted. And, needless to say, it is an alternative form of energy-using it would mean we become that much less dependent on oil and coal. Perhaps most importantly of all-we are never, ever going to run out of geothermal energy, and it is not a commodity that would continuously become more expensive in terms of real dollars as time passes, since it is ubiquitous. Geothermal energy would be, in the end, very cheap, after investigation and power plant building costs are recouped.