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Solar Power and Global Warming

February 23rd, 2010

Who wouldn’t want to get a lifetime supply of free electricity? Well, that can be realized only if you install a dependable and durable solar power system. Solar power is free but only after the installation of the power system. Conventional electricity comes from the burning of fossil fuels that in turn contribute to global warming. The effects of global warming are quite evident nowadays. Many people are now interested in saving the environment to prevent the devastating effects of pollution. One way to decrease pollution and environmental concerns is through the use of solar power.

Solar power can be used in different ways especially in households. You can use it for lighting, for cooking, for heating the house, and many others. Utility bills are very expensive and you can cut it down by installing a solar power system. The system has solar panels that collect sunlight and converts the energy of the sun into electricity. You can readily use the electricity or it can be stored in the batteries.

The sun’s raw energy can’t be used to power homes and it needs to be converted first through the inverter. If you have a solar powered house, you can make use of renewable and clean electricity. Even if you can’t cut off your traditional electrical supply, you will be able to reduce the consumption thereby helping the environment. Electricity is generated by burning fossil fuels that contribute to pollution and global warming. The supply of fossil fuels is also decreasing and the world might face electricity shortage soon if they don’t conserve energy. It would be best to start using solar power now.

Through the efforts of SEPA (Solar Electric Power Association), the public is made aware of the many benefits of solar powered homes. This is the best time to make substantial efforts to save the environment. Solar power can’t possibly replace conventional energy sources today but who knows. If the technological advancements can help in the enhancement of solar power systems, perhaps in the near future the whole world can go green.

Pollution is widespread and it poses a great threat to the world. By reducing traditional electricity consumption, you can also lessen pollution. Solar power can provide clean, renewable, and free electricity. It doesn’t produce harmful emissions. You can enjoy free electricity as long as the system is working properly and as long as the sun rises.

The solar power systems are not that expensive these days. In fact, you already get a solar power kit for as low as $200. Still, the large solar panels are expensive. The federal government in the US offers incentives, loans, grants, rebates, and other financial options to help homeowners in installing a power system. Take advantage of these financial options so that you can start helping the environment.

Solar power systems can serve your home for about twenty years when properly maintained. It’s like an entire lifetime if you start now. If every home around the world patronizes solar power, global warming can be greatly reduced and Mother Nature can heal herself. Try to learn more about solar power and if you can afford to install a system at home or in the office, don’t hesitate because you’re doing the world a favor and you also get a lot of benefits.

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Cheaper Solar Cost for America?

February 21st, 2010

People installing solar panels in the United States are allowed to receive up to 30% of the solar installation cost in the form of tax credits. This is not the end of the sweet offer as two senators have proposed a new bill that would offer rebates to cover up to 50% the cost of 10 million new solar arrays and 200,000 solar water heating systems.

The “10 Million Solar Roofs and 10 Million Gallons of Solar Water-Heating Act of 2010″ is proposed following the Million Solar Roofs program launched by California’s Governor Arnold Schwarzenegger that has established the state as a solar energy leader in the United States.

Jeff Wolfe, co-founder and CEO of the Vermont-based solar company groSolar, said the bill would “help make America energy-independent while creating many thousands of good-paying jobs,” according to a news release published by the solar trade association.

You may want to find the related article about the new bill here.

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The Cost of Solar Power Installation

February 19th, 2010

Many years ago, it would have been impossible to use solar power at home because the installation cost was too expensive. However, with the advancements in technology, households and offices can now make use of solar power because the solar power system kits are more affordable. Homes that have solar power systems can expect added market value and aside from that, you can expect a significant decrease in your electric bills.

How much is the cost for installing a solar power system? If you live in the US, you can take advantage of the financial incentives offered by the government to make the installation cost more affordable.

Before you finally decide to use a solar power system for your home, you need to calculate your electrical needs. Determine the kWh that your home consumes in a month and in a year. You can find such info on the monthly utility bill. Study the bills so that you will now which months have the greatest consumption and the months with the least consumption.

New homeowners can compute their electricity consumption by checking your electrical appliances. Just estimate the load based on your appliances, lights, and other things that consume electricity.

Electrically bills are showing a continuous upward trend and so many people are now complaining about their monthly bills. A very good answer is solar power. Where do you live? The place where the home or establishment is situated is a primary consideration. In the US, you can install the solar power system in any of the states. If you can find solar contractors locally, you can seek their help to determine the appropriate size of the system.

1-5 kW of solar power system is already enough to meet your home’s electricity needs. You don’t need to cut off your existing power supply in order to utilize solar power. You can simply use the photovoltaic systems as a supplement. This step alone can already reduce your monthly bills. Do you have enough space for the photovoltaic system? For every square foot, you can already yield 10 watts; you can start your computation from there.

Here’s how you can compute the total cost: the retail price of the system plus the cost of building permits, less federal tax credit of $2,000 and the local or state rebates/tax credit, less other incentives equals to your net investment. You can shop around for the best and most suitable solar power system in the market. If you live in California, it will be easier to find local sellers of solar power systems because many homes in the city are already solar powered. For those living in other places, it would be easier to shop online. There are lots of online stores that offer photovoltaic systems but try to stick with the reputable and established manufacturers that offer 10-15 years of warranty.

Instead of paying for expensive monthly utility bills, why not invest in solar power systems? The total cost will depend on the size of the system, your location, and other related factors. Inquire at a local agency about the incentives offered by your state so that you can also save money. It’s a wise decision to invest in photovoltaic systems because you’ll benefit greatly in the succeeding years. Shop around now and determine your available options.

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Can the US Solar Manufacturers Win the Battle?

February 14th, 2010

Whilst Mr. Obama has stated clearly that he wanted to make the United States “the world’s leading exporter of renewable energy”, it is China’s companies that quietly have established their domination in the green energy business, particularly in solar power. The Chinese have already dominated the market by successfully pushing down the price of photovoltaic panels by over fifty percent last year. This situation helps people who previously couldn’t afford to have their own home solar panels in the United States but on the other hand it’s not doing any good to the American clean energy equipment manufacturers. Many people worry that the local manufacturers can’t win the competition. Chinese companies are greatly supported by the government with cheap loans, labor and electricity cost, something impossible to find in the United States.

Will some protectionist legislation help to stop the Chinese solar products invasion? Not likely. The Chinese are furthermore preparing to build plants in the United States to assemble their products, something they learned from the Japanese automakers to combat the protectionist legislation many years ago.

It seems that the United States (and probably Europe as well) will become the consumers only unless they can push down their local products prices to stop the Chinese domination. Mr. Obama has to find a better solution to make his dream come true.

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Solar Energy – The Future of Generating Energy for the Home

January 30th, 2010

Solar energy for residential houses is nothing new. It has just been relegated to the background in lieu of rising cost of real estate; newer more advanced building materials, design and the limitation of resources.

Since man started building homes, sunlight played a major influence in the design. In fact, even in the more advanced urban planning method of the Ancient Chinese and Greeks, the orientation of the buildings is as much as possible directed towards where it could capture the most sunlight.

The ancients might not be as intellectually sophisticated then to use catch phrases as passive solar and thermal mass but when they build, they were building in compact proportion, employing overhangs, producing insulations and building in manners that direct the airflow within the structure and producing well lit, well ventilated spaces using the relative position of the sun to the orientation of their structures.

Lately, as the conventional sources of energy became more expensive, homeowners were once again turning to the sun for energy requirements.

Since the 1950’s, harnessing the sun’s rays has been developing and today the solar cell technology has achieved very efficient levels that modern (so-called green house) designs apply the sun’s power to provide energy for the home.

While solar energy is free, the device that will convert it to run our appliances is not. To provide solar energy for the home, solar cells called photovoltaic made from semi-conducting materials, are grouped into modules. These solar panels are mounted on rooftops, yards or open spaces where it can capture the maximum amount of sunlight.

Whenever possible, the panels will be installed facing south to get the most out of the sunlight but tracking systems are also used to follow the direction of the sun. The solar panels collect the energy from the sunlight. The process basically is that when the panels are exposed to sunlight, the electrons are separated form the atoms. This movement of the electrons creates electricity.

To store power, pumps are often used – circulating water in the cells. The water goes into a storage tank where the power is stored, ready for use. Sometimes, the use of gravity is employed if it will just the same store the heated water in to the tank.

In spite of all the development in solar energy though, the use of this technology is not enough to provide power to the whole house. The best method so far can only fulfill about 80% of a households power needs. The employment of solar energy for the home will still require the use of the conventional power distribution method.

Powering the homes by solar means will still, for a while be augmented by a local power distribution agency. To many, this is already a good starting point. Homeowners that feel that the high cost of powering their houses through solar power, is justified when compared to the price that is now being paid for conventional electrification method where horrendous amounts of CO2 are being dumped into the atmosphere just to generate a pitiful amount of electricity.

However, due in part to the rising costs of energy, the technology for solar energy has been undergoing rapid phases of development. Experts are confident that within five years, powering the home through the solar method will be made widely available for those who prefer it as its sole energy source.

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The Cost of Solar Energy System

January 28th, 2010

Solar energy is free but the tools that will enable you to harness this free energy are not.

If you are planning to install a solar energy system right at your home and would like to know how much it would cost, there are 3 things you need to consider:

First, the cost depends on how much energy your household requires. More energy you require means more solar panels and higher cost of installation. The good thing is, the technology to harness the power of the sun is relatively cheaper than it was several years ago.

Second, the government is offering a rebate to those who will switch to alternative form of energy. That means, the government will shoulder a portion of the total cost of the system.

Third, you can get tax credits when you switch to solar energy system. The amount of tax rebate depends from state to state but the range can go from $1000 to $2000.

All these affect the overall cost of your installation.

A photovoltaic system can cost roughly at $8000 to $10000 per 1kW system. This equates to $8 to $10 per Watt. An average American household with 3 bedrooms requires at least 1.5kW to as much as 3kW. Thus, installation can cost from $14000 to $30000, before rebates and tax credits.

Government rebate varies from state to state. As a reference, an average California household that requires 1.5kW system can get as much as $4200 rebate (1.5kW= 1500 watts x $2.80 per watt = $4200).

A household that requires 3kW system can get as much as $8400 (3kW= 3000 watts x $2.80 per watt = $8400).

Before, tax credit goes as much as 30% but it is lowered to 7.5% of system cost after rebate.

So an average household with 1.5kW system can get $735 ($14000 – $4200 x 7.5% = $735) worth of tax credit while the 3kW system can get $1620 ($30000 – $8400 x 7.5% = $1620) worth of tax credit.

Example A: 1.5kW system

Cost of solar electric system: $14000
Less rebate: $4200
Less tax credit: $735

Cost of the system after rebate and tax credit: $9065

Example B: 3kW system

Cost of solar electric system: $30000
Less rebate: $8400
Less tax credit: $1620

Cost of the system after rebate and tax credit: $19980

Again, these are rough estimates just to give you an idea of the cost of installing solar energy system. They do not represent real figures.

Top tips:

Energy independent home has higher resale value and is more preferred by home buyers. So, if you are planning to sell your home in several years, installing solar energy system does not only provide substantial saving on electric bill, it also is a good home improvement option.

If you want to finance the cost of your solar energy installation, include it in your mortgage.

If you want to reduce your electricity load, switch to energy efficient appliances. Buy electric appliances with ENERGY STAR seal.

Low energy requirement means lower installation cost.

Residents of areas with higher electricity rate can benefit most on solar energy system.

If you can’t afford the photovoltaic system, you can install solar hot water system that costs roughly from $2000 to $4000.

Solar energy is best for houses that are located far from the existing power lines.

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Solar Energy – New Discoveries

January 26th, 2010

The day may not be far off when the use of solar energy becomes a norm. There is now a deep conviction among experts that given a few years time, solar power will be in high demand that the cost will go down, inexpensive enough to undercut the prices of oil-generated electricity.

Previous predictions that it will still happen in a decade may no longer be true. The anger generated by the recent prices in oil and its vulnerability to market forces and other events may have already been enough to polarized people, governments and scientific communities into seriously considering a reliable alternative energy source.

You can not get a source more reliable than the sun. Even today homes that uses its power does not only benefit from the silent, energy generating, inexhaustible power of the sun, it also spikes up the prices of their homes. Those that have solar powered homes are even reimbursed for the surplus power that they supply to the power grid.

Presently, heliostats, photovoltaic cells and plate collectors are being used to collect the energy by focusing these panels towards the sun or constructing and installing the panel’s on spots where the sun shines most. Development in technology as we all know often has a snowball effect. It never stops rediscovering and reinventing that the speed of development could often be surprisingly fast.

Today, a polymer foil, thin as a sheet of paper and lighter by 200 times when compared to the regular glass collecting plates, are being developed. Chances are, these new inventions and discoveries could very well have a great potential for mass production. Previously, the glass-based materials used for heat collection need expensive substrates and require additional support for mounting due to its weight. The polymer foil, being very light could now be attached even to the walls of a structure.

So confident are scientists in the development of this technology that while the polymer foil is being developed, a plastic solar cell, based on nano technology is gaining breakthroughs. This plastic material can collect the power of the sun even on a cloudy day through harnessing the infrared rays is believed to be five times more efficient than the current technology.

While plastic materials for harnessing the power of the sun are not new, it is only recently that this plastic composite could harvest the infrared portion. Previously, only the visible rays are generated, the infrared part, which is half of the power of the sun, is invisible.

Currently, the best plastic solar cells could only harness 6% of the suns energy, with further study and development, this new plastic solar cells are expected to harness 30% of the suns solar power.

Scientists and researchers alike agree that ultimately, solar farms will be harnessing all our energy requirements and costs of power will drop. Today the price of solar powered energy is about 3 to 4 times per kilowatt hour compared with conventional electricity. That could change dramatically though the development of the existing technology and recent discoveries.

The roller pressed flexible plastic materials and the polymer foil are only two of the best hopes in arriving at a cleaner, greener and safer environment that could ultimately free the planet from its dependency on the depleting supply of oil.

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Solar Energy – This Commodity is Not for Sale

January 24th, 2010

If anything good came out during the recent increases of the fuel oil prices, it is that once again, there is a merry interest in alternative sources of energy. Even when pump prices has been decreasing like nothing we have seen before, the uproar created and the pain it did to business will have a good chance of sticking. The desire for alternative sources of energy is on the forefront and may it stay there for good – as it should.

Extracting oil from crops is a good idea; the downside is that food supplies could be dramatically reduced. Wind power is another excellent thing except for the many buts that wind power generation have.

If costs is the main objection to solar power generation that should be the least of worries.

The installation of solar panels is until today, considered a specialized job. Like any commodity in the market, when the demand is high but the supply is limited, the cost increase. As more and more homes clamor for alternative sources of energy, better technology and more labor is drawn to the job that market forces could take place and result into much lowered prices. This though is still in the future.

Today the reality is the instability and the unpredictability of pump prices. But even if it does provide stable and predictable price movement, solar energy is free and it is inexhaustible.

While the technology of tapping out this resource is not, homes that are solar powered are getting back dividends in terms of higher appraisal for their homes, confidence in not being surprised by power shortage and outage, not being dependent on the fluctuation in power prices and the definite advantage of having provided a better environment solution.

Today, the typical ways at tapping this resource usually are:

•Through a Heliostat – this are focusing collectors composed of mirrors that are aimed at the sun to collect the energy. The temperature that heliostats could provide reaches more that 4,000 degrees centigrade. This high temperature is sufficient for use even for furnaces.

•Through Flat Plate Collectors – employ a system of pipes. The water inside the pipes becomes heated and is ideal for heating purposes like schools, homes swimming pools, offices etc.

•Through Solar Distillation – instead of heat, this provides water. The mechanics is similar to the processes of plate collectors except that this is generally used to steam salt water. To do this, tanks and ducts are usually installed in surfaces that receive a good sun. Through the heat, the salt water turns into steam and when the steam condenses, the water is collected for regular use.

•Through photovoltaic Cells – These are the most common type of collecting solar energy characterized by solar panels installed in rooftops and other flat surfaces that there is a good sun, converting the power collected into electricity.

Unlike any products, whether refined or manufactured, the processing of solar energy do not need additional costs of energy to power it up. It is energy generating by itself. Except maybe for regular inspection and replacement of parts (when it employs a mechanical device), the tapping of solar energy is virtually maintenance free. Once installed, it could be used for as long as needed for the amount of energy, (depending on the capacity of the unit), which the owner requires.

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Pros and Cons of Residential Solar Energy System

January 22nd, 2010

Harnessing the power of the sun’s ray to create energy to power our house is very appealing. But the question is, “Is everything about solar energy good?”

Looking at the current price of fossil fuel-based electricity, it is quite impractical to convert into solar energy system. However, with the growing concern on the state of the earth, there is really a need to find other means of energy aside from what power plants are using right now. Where do you place yourself?

Whether you are an advocate of clean energy or simply care about where your finances go, looking at the pros and cons of residential solar energy system will help you decide on whether to convert or not.

Pros

Solar energy is free. Did you know that the earth absorbs 174 pettawatts of solar radiation? This means that we have more than enough source of free energy to power every house in the world. Unfortunately, most of our energy is still drawn from oil, gas and coal. But in recent years, there is a steady increase of demand for alternative and renewable energy like solar power. It is estimated that the demand for alternative sources of energy will increase by 53% between 1999 and 2020.

Solar energy is clean, renewable and sustainable. Because the energy created from the sun’s rays does not produce byproducts like those from fossil fuel power plants (sulfur dioxide, nitrogen oxide, mercury or carbon dioxide), it does not contribute to pollution. Accordingly, the increase in the use of solar energy and other alternative forms of energy will decrease the demand for greenhouse gases-producing power plants.

The price of photovoltaic cells is steadily decreasing. The demand for solar panels has risen by 57% in the United States in 2007 and is steadily increasing on a monthly basis. The increase in demand results to the improvement of solar technology as a whole. The prices of photovoltaic cells have declined on the average of 4% every year over the past 15 years.

Solar panels can be installed on most rooftops, eliminating the problem of finding a suitable place for installation. Solar panels require little or no maintenance. The original photovoltaic cells technology is used for most satellites orbiting our earth today which are not maintained at all. Many solar panel manufacturers give 25 to 40 years warranty on their products.

Because most areas of the country receive a substantial amount of sunlight throughout the year, solar panels can be installed anywhere.

Many states in the country give tax credits and rebates to households who want to install solar energy system. Check with your state government the cost of these incentives.

Cons

While the prices of PV cells are in constant decline, the cost of installation is substantially high compared to the current electric cost. But the good thing is, after your initial cash out, you don’t have to pay every month on electric bills for the rest of your life.

On areas cities and areas with heavy pollution problem, solar energy may not work as fine. Weather can also affect the efficiency of solar energy. If it is raining, overcast weather or if there is a hurricane, the solar panels’ efficiency is decreased.

You are only producing energy during day time.

These are general pros and cons you might encounter when considering the conversion to solar energy system. It would be best if your decision is based on location, cost, budget, rebates, tax credits and practicality.

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Free Solar Panels

December 23rd, 2009

By Ross Bainbridge

Solar power is simply the conversion of light energy into electrical energy using devices attached with special materials like silicon.

Man has been late in harnessing the light energy from the radiant sun, a repository of unfathomable power. But nature has been using it for millions of years. Each of leaf of shrub, herb, or tree is a form of solar cell, producing energy for them to grow. This energy production is completed through a chemical process known as photosynthesis. This is the best example of free solar energy.

Then there are real solar panels that one can get almost free. One can get such free solar panels just for asking, for many institutions want to get rid of slightly degraded ones that can be used in households for free. Even though the panels are slightly degraded, these would work fine. Moreover, photovoltaic (PV) panels are not the only type of solar energy.

Solar heating can be set up with glass, cardboard, or wood and insulation. Free glass is available everywhere in the U.S. These can be used to make solar ovens, solar hot water heaters, and hot air heaters.

To build a solar oven costs only $9, which includes $5 for clamps and $4 for the black paint. This is a rugged way of enjoying free solar panel power. One can enjoy rebates and discounts being offered by companies selling solar products. Ordering items in bulk and allying with friends and partners would further reduce costs.

One has to tap all ideas to get the best use at cheapest price. The very idea of solar energy is to utilize the sun’s energy, which is available for free.

Solar Panels provides detailed information on Solar Panels, Home Solar Panels, Solar Energy Panels, Free Solar Panels and more. Solar Panels is affiliated with Electric Boilers.

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