Posts Tagged ‘solar energy’
Alternative Energy Sources Give People More Chances Of Coping With Natural Energy Shortage
With years came the destruction of many valuable resources. Today the world is faced with the biggest problem; lack of resources to carry out even the most mundane duties of a persons day to day life. This shortage of fuel, water and other important resources has raised issues in many countries. Today, the usage of alternative energy sources has become important than never before. This is the reason why searching for alternative energy sources is a necessary and important factor for people in the world in the current period of energy crisis.
A hundred long years ago, oil was an inexpensive resource that many people used without any hassle. Today this is a natural resource that is highly depleting. Countries that supply the resource charge high prices making it difficult for most governments to cope up with the hikes.
Shortages in oil and other natural resources is not something that was identified recently. It was actually first experienced in the 1970’s by the Americans who had to wait in long queues to fill up their vehicles with fuel. The supply of gas was not enough to provide to all the households in America. The great United States was faced with a big problem.This resulted in the need to search for alternative energy sources to solve this issue.
Many have come forward in their search for alternative energy sources and have provided information that there are alternative energy sources that can be used at a lower cost. Nevertheless, each and every human being knows that the resources we use today come with heavy price tags.
The usage of wind, water and sun are the main components in the number of alternative energy sources found in the present day. It has been experimented and proved that geothermal power; hydropower or even solar power can be utilized in the production of electricity.
Although there are several alternative energy sources that can be put into use, one must know that not everyone can use the sources the way they want. For example, a person who lives in a geographic area that has less wind cannot use wind as a means to turn their turbines to generate electricity.
The same goes for individuals living in areas with less exposure to the sun. Solar power cannot be used in such locations. This proves that not every geographic location can be utilized for the generation of electricity. So, the usage of alternative energy sources may differ.
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Does Solar Power Make Sense For Industrial Users
Many solar power plant projects are being considered in locations like New Mexico and California where there are consistent and regular patterns of sunshine. It is therefore reasonable to consider the overall effectiveness and practicality of solar power plants on a large scale. How much can solar power be used to provide for America’s energy base?
The answer proposed is fairly simple. Pound for pound solar power stations do not compete well with the raw output of a combustion based energy station. The energy locked up in combustible fuels such as coal, natural gas, and diesel is enormous. As long as these fuels can be obtained for a reasonable price, they will outperform the renewables market for many years to come.
Combustible fuels can be thought of concentrated and stored solar energy from millenia before and in that sense are not really a bad thing. Without combustion we would have to sacrifice our industrial base and many of our modern technologies.
Most of our comforts and commercial activities are founded on several industries. This foundation includes processing raw materials like aluminum, iron, copper, steel, and more. This includes plants that produce machinery, tools, cars, airplanes and all the gadgets and gizmos we use in everyday life. It also includes sawmills and heavy machinery used for the harvesting of lumber and agricultural products.
The reality is our regular daily lives are very electricity intensive. This energy consumption is rooted in the infrastructure that bolsters our economy and our existence and the reality is it is supported by energy generated through combustion.
Here lies the basic problem with large solar power stations. They cannot supply enough energy to support America’s industrial base. This does not mean they are irrelevant or undesireable. It means solar energy systems make the most sense in small commercial and residential applications where energy consumption is lower.
As an example, a 500 MegaWatt combustion power plant can fit in a relatively small space, less than a 1/4 square mile without much difficulty. When considering a photovoltaic solar power plant, nearly 1,140 acres (almost 2 square miles) of solar panels would have to be installed to equal this same capacity. This is 2 square miles of nothinig but solar panels, not even allowing for maintenance access roads and other maintenance space. Because solar panels produce peak power with the peak amount of sun then we only get a fourth of the total output for eight times the amount of space!
Where there is plenty of sun and good weather we need to use solar power solutions to supplement our energy portfolio. Our modern combustion technologies deserve recognition. Modern technology in combustion power plants create clean and efficient power with very high reliability 24 hours a day. The highly concentrated energy source of fossile fuels is simply too great to ignore as it relates to powering America’s industrial base.
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Photovoltaic Solar Panels – How Do Solar Panels Work?
The basic answer is specific materials placed in direct sunlight will convert the light to electricity which can be used to power electronic devices. But it’s a little more complicated.
Today’s production of solar panels consists of using supremely pure silicone semi-conductor materials. Electrons are discharged from silicon semi-conductors when placed in sun light. This creates a potential as well as flow of electricity. A solar panel is also called a ‘direct energy conversion device’ since all of these effects are taking place on an atomic level minus any moving parts.
PV panels used to be only available in space race technology. Satellites and space stations used them for their reliable and continuous conversion of solar power. The sun’s radiation is 50% stronger in outer space giving solar energy an advantage in that environment. Solar energy devices have been used extensively in the space program.
People looking to live a good distance from the power grid, more than a mile, are more likely to use solar energy. Power transmission cables cost way more than installing a photovoltaic power array. If you are a significant distance from an electrical grid then it’s a good idea to consider solar energy for your power source.
To generate cost effective solar power, a sunny location is neccessary. Beam radiation is the most effective since it’s the strongest. Most of Western America qualifies…those states are good candidates for the use of solar energy, but northern climates and coastal states are usually quite cloud-laden and sadly, not worthy of 100% solar-reliance. You can search online for “solar insolation rates” to determine if your area is suitable for a solar energy system.
Solar panels can be set-up to meet your specific needs. The most common DC systems are rated 12 volt, 24 volt, and 48 volt. Solar panels have efficiencies in the range of 12-14% and can have a life expectancy of over 20 years.
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Why Would You Use Solar Energy
If I was a betting man, I’d bet you are already using solar power. It is in your fuel, your food, and in some form or another almost everything you do. In more practical terms, though, we are talking about heat and electricity. Why should we use solar energy systems to power our homes?
The answer is that solar energy is reliable and free. From the early morning dawn to the late evening set, the Sun will shine each and every day. Solar energy may be the single most consistent thing there is on our planet.
For now the government isn’t taxing it and there are no greenhouse gas emissions. And solar energy needs no refinement, it’s ready to go. Rays of sunshine from above, perhaps nothing more perfect than pure solar power.
So what if your photovoltaic system is only 12% efficient, or your solar collectors absorb only 70% of the available heat? The reality is, your power source is free! No more utility bills, gas stations, and no more power outages. When your solar power system is finally in service there are no more continuing fuel costs. All that could take you down would be a volcanic cloud or weeks of unstoppable rain.
The difficulties in using solar energy are with selecting the right application and the right equipment. How much does a solar energy system cost and how difficult is it to integrate? How simple or elaborate should it be? In my location, is solar energy right for me? Here are some straight answers to help your case.
If you have a sunny climate with lots of solar energy, then put it to use. You will save money long term and do so in an environmentally safe way. We would estimate that at least 50% of the United States could be using solar energy in some way.
If your home is overcast and rainy most of the time then a solar power system probably won’t work well for you. Coastal climates and winters in the north are difficult for this. But this does not mean you should not investigate, there may still be some opportunity.
When it comes to making heat and hot water with solar energy – absolutely. We call this passive solar heating. These are cost effective systems that can be incorporated directly into your business or home. A lot of designs for passive solar heating are cheap and simple.
When it comes to making electricity from solar energy, the answer will depend on many things. All in, the furnaces and combustion engines of the local power company are just some times hard to beat.
If you are using tons of electricity in your home or your business then solar energy may be difficult to justify. This is where local Utilities are good, they can kick out the juice for all the high power users and the heavy duty industries. But if you are simple in life and efficient in how you use energy, then the up-front cost of solar power can pay off over time. It could be as little as 5 years depending on the electrical rate of your local utility.
If you are miles from an electrical supply then solar power can save you a bunch of money. You can save money by avoiding expensive transmission cables routed to your property.
If you are interested in an emergency reserve of energy, then this also is a good use for solar energy. With just a few solar panels you can charge a large bank of batteries. So when you get those destructive storms and environmental disasters, just kick in the emergency reserve and ride it through.
Whatever your specific purpose, the reasons for using solar energy are many. Be it an emergency back up, a money saver, or just to reduce pollution, installing a solar energy system is a beneficial experience.
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Global Solar Markets | Solar Thermal | GE | SCE | PG&E | CPUC
In September, there was a post to a solar industry Linked-In group suggesting that solar markets were declining and not very important. Quite a bit of recent GLOBAL evidence to the contrary has appeared in terms of money now moving in solar markets. Two of the world’s largest engineering giants, German conglomerate Siemens and US powerhouse General Electric (GE), have both committed to the renewable energy sector. Both have acquired high-profile Israeli solar energy firms. Siemens announced will acquire solar thermal power firm Solel Solar for what is nearing a half BILLION dollars ($418 million). The buyout is subject to regulatory approval, but Siemens said it is confident the acquisition can be completed before 2010. Israel-based Solel is one of the world’s leading providers of giant mirrors, which are used in parabolic trough solar thermal systems. The company posted sales of almost $90 million in the first six months of this year and has operations in a number of key solar thermal markets, including Spain and the US. Siemens’ President suggests that they want to replicate their success in the wind energy market. They are estimating a Solar Thermal market worth €20 billion PER YEAR by 2020. Siemans is also a member of the Desertec coalition of German blue chip firms exploring large scale solar farms in North Africa that hopes to export energy to Europe. GE announced it has spent an undisclosed sum as part of a $23 million funding round for Israeli solar start- up SolarEdge. The company provides an automated management system for photovoltaic solar panel arrays designed to ensure each panel is able to maximize power output. GE also took a piece of US smart grid firm Tendril and announced that it was aiming to boost its investment in renewable energy generation from the current level of $4 billion to $6 billion by the end of 2010. That's just a few “smart billion” among friends. Let’s look at California, since they are one of the largest economies in the world and the government is complaining it’s broke. You’d think this would mean that they would stop investing in solar if anyone would. Sempra Energy and PG&E both announced large new solar commitments in October (2009) with Sempra planning to build up to 500MW of its own new solar-power plants in the next few years and PG&E signing contracts to buy a whopping 830MW of new solar. PG&E wants to add 500MW of ground-mounted solar-power systems and Sempra subsidiary San Diego Gas & Electric has applied for approval for 70-80MW of ground-mounted solar panels. Another California utility, Southern California Edison, has gotten approval to add 500MW of rooftop solar projects, and both SCE and PG&E have signed deals for huge solar-thermal projects, including 1.3GW and 1.31GW contracts from BrightSource, respectively. Residential and commercial installations appear tiny in terms of capacity, although there are many more of them. In the first quarter of this year, for example, the California Solar Initiative announced that its participants installed a record total of 78MW at more than 3,600 sites. The leap in utility solar development has been even more pronounced because it comes at a time when it’s been so difficult for other large solar-project developers to raise money. Recession financing has remained scarce, and while federal cash grants are beginning to help, most of those have gone to wind projects so far. But we see a helio-tropic shift coming. It’s not a coincidence that utilities have begun driving the solar market at the same time that they have become eligible for the first time for federal tax credits and cash grants. Those incentives have made it feasible for them to build their own plants, instead of financing them through power-purchase-agreement providers that own and operate the plants. Some entrepreneurs worry that big utilities could monopolize the industry instead of encouraging competition within the market. I expect many of these utilities will also help the economy by hiring clean tech research firms like Research 13 to evaluate the markets and show the positive impact of solar pushing prices downward for all as the demand for systems increase in the long run. Thus far, the Californial Public Utility Commission has addressed this concern by making sure that – in addition to developing projects themselves. Utilities buy solar power from developers, making them both a customers as well as a competitor. The Govenator has been busy this month keeping his wife off of the cell phone, and he’s been out of the sunlight as First Lady Maria promotes her new book about women in the workplace. While this month appears to be Maria’s month, last month the Gov. raised the state goal, requiring utilities to get one third (33%) of their electricity from renewable sources by 2020. That’s ambitious, even for Hans and Frans, considering that utilities are expected to fall short of the previous goal of 20 percent by 2010. You don’t get to be one of the world’s biggest box office stars and marry into the Kennedy family without an ambitious plan. Let’s not forget China who is producing half of the solar PV panels. China is reportedly spending $230 billion in stimulus money on “green infrastructure.” That’s 40% of China’s stimulus package is going to the green economy. There’s a big push to get a domestic solar market. They started off in March with the Solar Roofs Program and then in late July they announced the Golden Sun project, which is more utility-level. So with just the California “warm California sun” plans and the Chinese “Golden sun” program, things are, eh, sunny and bright. Of course a little more exploring of the gentleman who said solar was going to decline reveals that he was part of the petro-chemical industry. They’ve owned energy for a long time, so I’m not surprised it’s hard to believe for him. However, I think he might also thin the sun rises in the morning (the earth actually spins once every 24 hours and takes 365 days to get around the sun). Sources: Business Green, Aimeebarnes.com, Environmental Leader, Earth2Tech, Earth Stream, Research 13
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Interested in Eco-Friendly Cleaning?
Cleaning agents usually contain very powerful chemicals meant to remove stains, kill germs or dissolve rust and mineral deposits, but all these substances are a threat for our health.Paint, oil, grease, germs, stains and blotches are the nightmare of cleaning and the enemies of good health, and people use very powerful agents to eliminate the problem. Given the immense environmental problems, some companies have taken up manufacturing eco-friendly cleaning products. Organic solvents and powerful cleaning agents can also be derived from vegetables and plant ingredients, and here we have the solution for eco-friendly cleaning.Save energy, click here for more info!
There is a widely spread lack of confidence in the capacity of eco-friendly cleaning products to remove resistant stains. Even in the absence of toxic solvents, there is no compromise in terms of efficiency, because high-quality eco-friendly cleaning solutions do a great job. It is paradoxical how we soil and litter our planet while making efforts to remove the dirt from daily life. Why switch to eco-friendly cleaning? If you take up eco-friendly cleaning you can say goodbye to chemicals and toxic fumes from your home.
Babies and children will no longer be exposed to the chemical residues that remain in the clothing after washing. Plus, you get to replace toxic spray bottles for good. With eco friendly cleaning, you can say goodbye to home poisons. You can eliminate the hazardous substances by using household pickup days, and replacing them with safer versions. Eco-friendly cleaning equals a better environment for your children. Moreover, the water pollution would drop by the use of non-toxic cleaning agents. If you don’t have eco-friendly cleaning products ready-made for a certain task, there are homemade solutions available too. Find out more about renewable energy!
The Internet abounds with eco-friendly cleaning tips, you just need a bit of time, interest and patience to see how to deal with the issue. Further try to change the cleaning accessories too, and replace them with some natural ones. Sponges, mops and rags should be all reusable and natural. A responsible human being living in the 21st century should mind the durability, health and environment impact of the products he/she purchases for home use. Major savings will also come together with such changes too.Renewable power is our future. Find out more!
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Buy Earth Friendly Products!
Goods and services with no negative impact on the environment are known as earth friendly products. The eco-labels on such products tell consumers that the items are organic or natural. In some countries the very concept is pretty vague and people lack the basics of green education. Plus, the present international standards do not allow for a standardization and the implementation of an all green regulation. The regulators are meant to provide guidance because the single specification of environmentally friendly on a product label is not enough.Save energy, click here for more info!
Earth friendly products do receive a better exposure on the market. The consumers’ awareness increases slowly but surely, which means that in time, lots of environmentally harmful products will be banned for good. Momentarily, organic food has become subject to intense advertising campaigns. This seems to be the right alternative to the conventional food saturated with chemicals, pesticides and additives. The average consumer does not even know how many options there are available in terms of earth friendly products from the bio-degradable bags to sustainable building materials. Find out more about renewable energy!
Green living, clothing, green building, pet care, toys, gifts, furniture, body and bath products and lots of others make the main categories of earth friendly products that you can shop for. Some items are now widely available on the shelves of the supermarkets, but others can only be purchased online. Just search for them, and you won’t feel disappointed. You can first find some information on the Internet, and then check the local supply store to see whether they have the items available. Renewable power is our future. Find out more!
To sum it up: there is no toxicity for body or environment in earth friendly products. Raw materials, no toxic dies or toxic chemicals: this is what defines such items best. Although we can only speak of diversity but not of predominance on the market, earth friendly products do have a promising future. The offer should increase proportionately with the demand. Plus, eco-friendly products receive full support from international organizations such as Greenpeace that contribute to the conservation, regeneration and protection of the planet’s environment.
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RENEWABLE ENERGY – QUALITY COUNTS
Recently, two US astronauts on the International Space Station took six hours to install a new solar panel on the outside of the station.The panel cost a massive $300 million US dollars, and increased the energy capacity of the station to such a degree that it could handle six resident astronauts as opposed to three. Thankfully, solar power for more down-to-earth projects doesn’t cost that much !
From space exploration to domestic electricity, solar power is a growing industry. But whether a solar system costs millions of dollars or a few thousand, the issues of quality and installation don’t change.Compromising quality for price is a real risk as inferior products will not perform well and could even be a danger.
Cheap solar panels may seem like an attractive proposition, but they are really not ideal.To get the most of your investment – regardless of what it is – you should always make sure you get expert advice from people with a proven track record.
There are many lower-cost solar panels flooding the market, the bulk of which come from the East.Some of the cheap, imported panels are self-certified which gives them a sense of authenticity (unfounded of course), and this is cause for concern in some countries, including Australia.A ‘CE’ mark from Europe is worthless in Australia, as it is not independent and therefore is meaningless.
Some of the problems with faulty panels are inferior or unreliable performance, leaving consumers with no recourse. The potential for a fire hazard is also a concern, as it is with any electrical system.The fire risk doesn’t come from the solar panels themselves, but rather from faulty wiring or damage to the electrical components.
In order to minimise risk, it’s always best to select a supplier based on reputation, certification and experience in solar power installations.A list of all the solar panel models that meet the standards set by the Australian regulators can be obtained from the Business Council on Sustainable Energy.
A word of advice comes from Perth solar energy company, Solar My World, who suggest that anyone wanting to install a solar system should do their homework thoroughly before making any investment.”There has been significant growth in the solar industry, which has meant a growth in the number of installers plus inferior products in the market. Choosing a certified, experienced contractor is vital for the sustained long-term performance, durability and safety of any solar system.”
Solar my World has been appointed as an official supplier of solar systems from one of the biggest renewable energy companies in the world, Conergy.Solar my World supplies and installs solar hot water and solar power systems from Conergy, which are manufactured in Germany at a factory which is the most advanced of its kind in theh world.Conergy solar systems are well-priced and comprehensively tested to ensure they meet superior quailty and performance standards, and offer these advantages :
• Made in Germany
*Advanced cell design
• Low performance tolerance +/- 3%
* Up to twenty-five year warranty
• 4mm thick low reflection solar glass (other panels are generally 3mm)
* IEC salt mist test certified
* Specially developed frame
* Superior corrosion protection
• Superior quality finish
From the space mission controllers to ordinary folk who are concerned about the environment and renewable energy, solar power can light everyone’s world.
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Saving your energy and your money
In this tough economy we are in people are looking for ways to save money. One of the often overlooked ways is to conserve energy. Not only can this save you money, but it can also help the environment.In this article we will examine a way for you to save a lot in energy costs.
The best way that you can save on your energy bills is to have a solar energy system for your house.It isn’t as difficult as it may seem to be.All that it will take is for you to go and have solar panels installed onto your house. When people look into this they realize that solar panels can be expensive. So they go looking for cheap solar panels.
Now they might be able to find some but if they really want to save they should look into building a solar energy system themselves. There are plenty of manuals that can teach them how to do a diy solar panels. Most of them are written well enough that all you have to do is follow step by step.If you are able to do it this way you are going to be saving thousands of dollars for yourself. So even if you didn’t want to do it yourself, you could hire someone to do it.it the cost will be less than if they went with a solar contractor or an electrician.
It doesn’t matter if you have someone install it yourself or if you learn how to build a solar panel.As long as you are able to switch your energy into a more efficient solar energy system you are going to be saving money.
But not only can you save yourself money but you can also help the environment.Making use of solar energy gets rid of a lot of more toxic type of energy. You will be using clean natural energy. Who knows you might be able to set a good example and more people will follow your footsteps.
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Making Your Own Solar Panels
Every year the sun sends down to the earth 170 Petawatts of energy in the form of light and heat and about 80 Petawatts eventually reach the ground. To get a better idea of what this amount of energy relates to, 40 Petawatts (80,000 trillion watts) or half a year’s worth is equal to all of the fossil fuels that we can ever extract from the earth. It’s free, non-polluting, and contributes 0% to global warming. So if you live where the sun shines a lot you are in an ideal position to build your own solar cell panels and make drastic cuts to your electric charges while simultaneously doing your part to protect the environment for future generations.
Since we are using up fossil fuel sources more rapidly than new ones can be discovered, it is only reasonable to start turning to one of the most abundant energy resources at hand that is free—solar power. It is a renewable resource that has not yet been fully tapped by a lot of countries which gives it almost unlimited potential in the future. You can capture this energy when you construct a solar cell that you locate either on your roof or near your house angled so as to catch as many sunshine as possible and transform it into electricity. You will need 10 or 12 panels to capture at least a kilowatt of power.
The biggest problem in the use of solar power is that it can only create power during daylight hours. The answer to this is to put an auxiliary system in place that will store the energy and then kick-in when the sun is not available. The most common supplementary system is comprised of deep cycle batteries that can supply power after the sun goes down or when a brownout happens to occur.
Quite a few individuals hesitate to implement a solar alternative energy solution for their home fearing that they are too expensive and unwieldy. They do carry a hefty price tag if you opt for professional installation but it may come as a surprise to you as to how cheap and uncomplicated it is to put up an alternative solar panel solution to that high monthly electric bill. If you live where there is a lot of sunshine and there aren’t trees or nearby mountains to block out the light, then you need to look into making your own solar panels and saying goodbye to high electric bills.
In California it is customarily acknowledged that converting your home to “green energy” is equal to eliminating two autos from the highway. Solar cell panels have more advantages than just being eco-friendly. They require very little maintenance which saves you time and money. Also, solar systems give you a return on investment very soon, thus making the systems free after some time. Solar energy is a smart alternative energy option and you can enjoy saving money while getting the satisfaction of building your own solar cell array.
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