Posts Tagged ‘solar panels’

How to Install a Solar Power System for Homes

April 21st, 2010

Ever since man existed, sunlight was and will always be available. For several years now, a lot of people are complaining about the ever increasing electricity bills. Because of this, solar power systems became great alternatives through the years. Sunlight is readily available especially in countries where they get a lot of sunshine. With the yearly improvements in modern technology, solar power for homes is now more advanced.

With just a little amount of sunlight, you can already get more electricity. With only a few solar panels, you can generate the needed electricity for your home. Even if you live in a small house, you can install a solar panel.

Most of today’s homes are not properly oriented to get a lot of sunlight and this becomes a great problem. New solar power systems are more efficient and can generate quality electricity with less sunlight. The modern solar panels are installed at steeper angles but can still tolerate sunlight. So, if you’re home doesn’t have an ideal orientation, it would still be possible to generate solar power.

Solar panels are usually installed on top of the roof together with an effective rail system. The panels are able to slide at the best position to get sunlight. The system is also ideal just in case you want to expand later on.

Before you install solar panels, you need to determine the electricity requirements of your home. To calculate your monthly electrical consumption, you will need to go over your electrical bills and determine the average usage. After that, you can now pick the right system size. If this is your first time to use solar power, it would better to start with the simplest project you can find. Make room for expansion as well so that you can expand the system little by little especially if you have limited resources. Even if you use solar power as an alternative, you will surely be able to cut your bills by 80% in the coming months. » Read more: How to Install a Solar Power System for Homes

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A Bright Future for Solar Energy: An Alternative Energy Source

April 12th, 2010

I was first introduced to solar energy in the movie, Race the Sun with James Belushi in the lead. It was a story about low- income and under achieving Hawaiian students encouraged by their teacher to join the Solar Car race. In the movie, a car shaped like a cockroach and covered with solar panels used the sun’s rays as an alternative energy source to run the car.

Solar energy is the light and the heat from the sun. Solar energy is free and its supplies are unlimited. There are no air and water pollution caused about by using solar energy. But there is still some impacts on the environment although indirect.

Photovoltaic cells used to convert sunlight into electricity uses silicon and also produce some waste materials. There are also large solar thermal farms and these farms can also be harmful to the environment and desert ecosystems if not properly managed.

Solar energy can be used on different aspects. Solar energy can be used in agriculture. Greenhouses (which is entirely different from greenhouse gas) convert solar light to heat to be maximized in enhancing the growth of plants and crops. Greenhouses has been around since the Roman times and modern greenhouses were built in Europe in 16th century. Greenhouses are still an important part of horticulture nowadays,

Daylight systems are also being used to maximize the energy released by the sun. It is used to provide interior illumination replacing the artificial lighting. Daylight systems include sawtooth roofs, light shelf, skylights, and light tube. Daylight systems when they are properly implemented can reduce lighting-related energy consumption by 25 percent.

Solar energy can also be developed into solar thermal technologies which can be used for water heating, space heating, space cooling and process heat generation. Solar energy can also be used to distill water and make saline or brackish water potable or drinkable. » Read more: A Bright Future for Solar Energy: An Alternative Energy Source

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Solar Cost – How to Calculate It?

April 5th, 2010

What is the cost for installing a solar power system? We all know that solar panels cost can take up to 50 – 60% of the total solar home cost people have to pay, however the cost of solar panels have been significantly reduced in 2009 and some experts expected the price to go down further this year. The number of solar residential has been increased in some States but some people are still reluctant to follow because they can’t figure out what is the real cost of solar power they have to pay. Many will ask questions like “How much does solar power cost for a 4800 square foot house?”

The answer to this question is actually depends on some factors:

- Where they live
- Total sun hours they get every day
- Total electricity they use every day
- Total solar electricity they want to make with the system
- Solar rebates and tax incentives (if applicable)
- Grid-tied or off grid (with solar batteries) option

We don’t need to 100% substitute the utility power with solar electricity because it really depends on how much money we are willing to spend on the solar electric system in our house. To help you calculate the solar price NREL has an online calculator set up for this purpose. » Read more: Solar Cost – How to Calculate It?

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Solar Power for Homes: Things to Consider

March 21st, 2010

Do you think that using solar power for home is a great idea? Well, only you can answer that question. Before you embark on any project, you must have enough knowledge about it. Make sure that you do your homework first and learn everything you can about solar power. The world is suffering greatly from global warming and one of the primary causes is the use of fossil fuels to create electricity. Electricity is a necessity and because of this fact, people can’t do away with it. There is a need to look for alternative energy sources and a very good one is the use of solar power.

Before you make a decision and use solar power for your home, here are the important considerations that you should look into:

1. Where do you live? What is the weather in your area? Is it always sunny in your area or is it always raining? Are there tall trees near your house? You must answer these questions first before you start with any DIY project to create solar power for your home. If the weather is frequently sunny, then it might be a good idea to use solar power. For those with lots of trees in their yard, you need to get rid of them but this is not a very easy thing to do since trees are also very important. Local authorities might not permit you to do cut down huge tall trees. Study the weather in your area as well as your location. To use solar power, you will need the rays of the sun. Rain, clouds, and trees can block the sun’s rays and so you might end up wasting money.
2. Where do you plan to install the solar panels? You must determine the place where there is lots of sunlight all throughout the day. You can’t install the solar panels in an area where there is very little sunlight. Study your home’s surroundings. Find the perfect place where the panels can get a lot of sunlight so that you can benefit from it greatly.
3. Do you have enough knowledge on how to connect solar power into the electricity grid of your home? You can also conduct a research about it. The solar power DIY projects usually provide a complete guide on how to install the solar power to your homes. Just follow the instructions carefully to avoid committing mistakes. If you’re not that sure, you can always get an electrician to help you with the task.

Solar power can reduce your monthly electric bills by more or less 80% depending on your solar power project. In no time at all, your home can become self sufficient and you will no longer depend largely on the conventional energy sources.

Aside from that, the carbon emissions are also reduced thereby saving the environment from further damage. With a solar powered home, you can enjoy an endless electric supply that is clean, green, and fresh.

Get a solar power DIY kit now and get the needed materials. You can also ask other family members to help you out. That is, if you think that solar power is best for your home. Go through the three considerations mentioned above so that you can make an informed decision. This is the time to save money and help the environment, act now.

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Solar Power for Camping Trips

March 12th, 2010

Perhaps you’ve already heard about solar power systems. People often think that solar power is very expensive but that was years ago. Today, you can already find more affordable alternatives in order to enjoy the free energy from the sun. Many individuals love to go camping and if you’re one of them, you may as well carry a solar power system with you.

But are the systems reliable, portable enough, practical, and readily available?

RV camping can be a lot more fun if you have a solar power system with you. However, some campers simply find the whole system as unnecessary. The camping spaces are usually fully hooked up so you won’t need the system unless there is power failure. The trips are usually carefully planned and you will need to reserve for the hook-up. You can also go on an RV camping without the hookup. You can explore quiet and remote places for a couple of days. In this case, the solar power system is a must and it’s practical to have them around. Before you go camping, you must determine your electrical requirements. The camping schedule should also be appropriately chosen to make sure that there will be plenty of sunshine. The batteries can be charged using the system. Once you determine the load, you can now estimate the size of the system. Purchase the needed materials and start the installation of batteries, solar panels, and inverters. These are needed to produce the required energy.

Today, there are several solar power systems that are suitable to RVs. Shop around and you can find one that will suit your budget and needs. If you’re planning to bring electrical devices, you must calculate their energy needs so that you won’t use up all the solar energy. Try to limit the number of electrical devices you bring; besides, you’re going camping to explore nature so you can do away with the convenience of these devices.

Even if you’re camping without RVs, you can still make use of the solar power system. You can already find lightweight and portable units that generate solar power. There are flexible panels that can be carried to campsites and you will just spread them on the ground where there is direct sunlight. The generated power is enough to light a small bulb and a heater. Special backpacks collect sun’s energy and convert them into electricity which can be used to recharge your iPod, camera, and cellular phone.

Solar power is no longer limited to homes, offices, and other bog establishments. Now, it is already possible to carry solar power systems anywhere you go. Camping will be more fun if you bring a solar power system with you. Forget about conventional generators that consume fuel. You can get free electricity from the systems that are sold in the market. In the US, solar power is already recognized and many households are now using them.

Next time you plan to go camping, make sure that you bring a dependable solar power system. Plan your outing carefully and make sure that you pick the right date and day as well. If it’s sunny, you can produce more energy. Bring limited electric devices and bring only the essentials. Solar power is clean and renewable so you can stay out camping for as long as you like without worrying about energy consumption.

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Solar Power in the US

March 6th, 2010

Sunlight contains energy and if you can capture it using a special gadget, you can turn it into electricity. For many years, solar power was always overlooked. But now that the world is becoming warmer, the sources of fossil fuels are depleting, and the cost of electricity is continuously rising, many people now realize the importance of solar power.

With solar power, you will no longer have to worry about electricity once you’ve installed the solar power system. Aside from that, you will get clean and renewable energy. When you install a solar power system, you’re able to hit two birds with one stone – you’re able to save the earth and you can save a lot of money in the coming years. The system can last for about twenty years and that’s like a lifetime already. With proper care and maintenance, the system might reach thirty years of service.

In the US, solar power is gaining popularity. Years ago, it would have been impossible to use solar power in homes because it was too expensive. But thanks to modern technology, many homeowners in the US as well as businesses now make use of solar energy. Power bills can surely be reduced thereby saving the environment and the pockets of homeowners or businesspersons.

Some places in the US enjoy a lot of sunlight particularly Los Angeles California. There are so many solar power systems available today and solar panels are just one of them. Despite the many benefits of solar power, have you ever wondered why very few people use it? At this point, experts claim that solar power is still inefficient. To generate more electricity, then larger solar panels are needed which are quite bulky. Just imagine putting a large and ugly panel on your rooftop which can destroy your home’s overall beauty? Ready made solar panels are quite costly that ranges from $35,000 – $250,000 depending on the size.

Scientists are still conducting researches and at present, solar power is said to be more efficient now unlike many years ago. Drastic changes were made thereby improving the solar panel’s price and appearance. With the invention of the photovoltaic cells, solar power was greatly improved. The cells will be placed on steel substrate to capture sunlight and the energy will be stored within the battery. The photovoltaic panels contain n layers of cells thereby increasing its efficiency. These new panels make use of the ‘amorphous silicon thin alloy technology’. Through this technology, the cells are not bulky anymore and highly efficient. With stylish photovoltaic panels, your house or office will still look pleasant eve with the panel on top.

Aside from the cell, photovoltaic shingles were also invented. Basically, the shingles modified solar panels. If you don’t want to use bulky solar panels, this is an excellent choice because of its aesthetic and convenient design. The photovoltaic shingles look like ordinary shingles and are colored black.

The photovoltaic cells and shingles have definitely enhanced the solar power technology. Who knows? Perhaps in the future, experts and scientists can now develop smaller cells, panels, etc. Check out LA and see the solar powered homes there. You can now start calculating your home’s electrical requirements so that you can determine the right size of the power system. Start with a small project and work your way up but if you can afford to pay for ready-made ones, go ahead.

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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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How to Make Your Own Green Energy Source

February 17th, 2010

Wouldn’t it be great if we can produce our own green energy source? If we can do that, we don’t have to pay electrical bills or gasoline anymore for our cars. While we can buy some of the equipment, the rest will have to be done on our own.

Take solar or wind energy for example. We already know how to harness and make it. If you want to make one, do some research online and then set up the system yourself.

To have solar energy, you will need to buy an inverter, battery, charge controller, solar panels, some wires and support structure. The only difference with wind energy is that you need a fan. Once you have everything you need, you can put it all together.

If you are not skillful, you will be happy to know that some companies sell the entire system. By buying it from them and having it installed by their experts, you are sure that there won’t be any problems the moment you switch it on.

There is one more thing you need before you can use one or the two green energy sources. Before you buy the materials or the system, make sure you have a flat area that is about a hundred square feet or so because it occupies a lot of space.

For those who don’t have the space or the budget to use these two energy sources, another option is to create your own biofuels.

Biofuels are used in many countries and they get it from harvesting corn, sugar and other crops. Luckily, you don’t need a farm to produce it because you can also make your own using some recycled waste.

A good example of this is vegetable oil which we use for cooking. To turn this into a biofuel, we first filter it by warming up the liquid and then filtering this with a coffee filter. The next step is to remove the water also by boiling it again at 100 degrees for a short period of time.

We need to know the amount of lye present in the vegetable oil and we do this by a process known as titration. When we are done with that, we now mix sodium hydroxide to produce sodium methoxide.

The process of converting used vegetable oil before it becomes a biofuel takes quite awhile and it must be heated the entire time. This is done so the fuel we produce is pure and only when this is achieved that we give it time to cool.

Just how much biofuel we make after all the work varies but you will have an idea of how much you have produced since this is the one you see floating at the top. If there is still some glycerin present, filter it again. From there, you already have your own backyard biofuel which you can use and even sell to those who are just as concerned with the environment as you are.

By making our own green energy sources, we make ourselves less dependent on gasoline in its various forms to power our heater, home or car. Why don’t a lot of people do it? Well simply because they don’t have the time to make it and would rather rely on someone else to do it for them.

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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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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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