President Obama signed into law the American Recovery and Reinvestment Act that provides billions in investments to increase the use of solar energy, promote energy efficiency, improve financing options and remove market barriers.

Solar and energy efficient improvements for federal buildings
Solar water heating incentives, removing the $2000 cap on the 30% personal tax credit (excludes pools and hot tubs)
Green-collar job training programs
Ending the state and municipal ‘subsidized financing penalty’
Smart grid investments
Expanding research and development programs for renewable energy and energy efficiency

This legislation also funds solar and energy efficient upgrades for schools, solar grant alternatives to the investment tax credit, solar manufacturer incentives, and other historic investments.

There’s still a long way to go, but this legislation provides a tremendous step forward that will help generate green jobs, reduce energy costs, tackle climate change and power the new energy economy for years to come.

It is hoped that this historic legislation will massively increase the use of solar energy all across the America and will help position the U.S. as a global leader in the booming solar marketplace, generating thousands of green-collar jobs, promoting energy independence, and helping to tackle climate change.

Here are a few more specifics of the legislation:

For full text go to Library of Congress

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Finding reliable sources of renewable energy is important in order to help slow the effects of global warming and to reduce the need for fossil fuels. There are also other advantages to using renewable energy to replace the burning of fossil fuels. Some of the biggest advantages of using renewable energy are:

• Renewable energy will never be depleted – No matter how much energy is needed by people all over the world renewable energy sources will never run out and can continue to make electricity and heat as long as there are people that need them. 

• Renewable energy helps the environment – This chiefly comes from producing fewer greenhouse gases that contribute to global warming. In addition to slowing down the effects of global warming using renewable energy sources also helps preserve ecosystems that would be destroyed to develop the fossil fuels found in the land. When there are fewer pollutants in the air the plants and trees that make oxygen will be healthier and will put out more oxygen which will make people healthier. 

• Renewable energy is safer than fossil fuel – Fossil fuels used to create heat and electricity and as fuel for vehicles creates toxic chemicals that are released into the air and lead to bad air quality and acid rain. Everything that is alive is affected by that kind of pollution including us humans. Renewable energy sources greatly reduce or even eliminate pollution of the air and water.  With less pollution in the air and water people will be healthier and won’t be at risk of health problems caused by pollution like asthma and other respiratory problems. 

• Renewable energy sources create jobs and industry – Because renewable energy sources require specialized equipment and lots of research the business of creating renewable energy sources that are accessible to lots of people means that there will be a lot of new businesses starting and a lot of new jobs for people.

Watch the Video that can be found at this link: Energy Information Administration

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The rising price of gasoline  has placed a spotlight on finding ways to use renewable energy to fill the vast power needs of the world population. What exactly is renewable energy? Renewable energy is harnessing the forces of the wind, the sun, water, geothermal, and other natural occurring forces to create energy that can be used to create electricity, heat, and fuel for transportation.

Large Installation in Bavaria

Many companies and scientific labs are experimenting with different bio fuels to find a bio fuel that works with already existing vehicles to help reduce dependence on petroleum.  Hybrid vehicles that run on a combination of petroleum based fuel and bio fuels are becoming more and more popular.  Some vehicles that run on diesel fuel are being converted to run on bio-diesel which is a fuel made from used vegetable oil that is discarded by restaurants and food plants.

2. Hydro power – Hydro power is using the power of flowing water to create electricity.  Hydro power is one of the oldest continually used forms of creating energy and was extremely popular before it become common to use fossil fuels.  For hundreds of years rushing water was used to create energy that would operate a grain mill and grind corn and wheat, power steam engines, and provide energy for other common tasks. The first known use of hydro power to provide electricity was in 1880, and hydro power has been used to generate electricity every since.

Hydro power is still used today. About 7% of the electricity used in the United States each year comes from hydro electric plants.  Because it’s necessary for a large hydro electric plant to be located directly on a large body of water in order to have enough water to generate the kind of power that is needed to make electricity hydro electric power plants are not widespread.  More than half of the many hydro power plants in the United States are located in only three states: Oregon, California, and Washington.

Hydro power is often considered to be the ideal form of renewable energy because it’s practically free, it creates no pollutants that harm the environment, and it has almost no waste products of any kind. The drawback is that hydro power can only be located in a small number of areas with the right natural features. Plus, the large dams needed to harness hydro power can dramatically alter the landscape and affect wildlife.

3. Geothermal power – Geothermal power comes from using the natural heat from deep inside the earth.  The core of the Earth generates a lot of heat and water that is heated deep within the Earth and released to the surface through hot springs and geysers. Even volcanoes can be used to heat buildings and homes as well to provide electricity.

The most common use of geothermal power is direct heating.  Direct geothermal heating consists of piping hot water from below the surface of the Earth directly into buildings or homes to heat the buildings.  Iceland gets up to 95% of their heat from geothermal direct heating. The island nation sits on the world’s most easily accessible source of heat energy from volcanic magma close to the Earth’s surface.

The United States is the biggest user of geothermal energy for electricity in the world but still less than 1% of all the electricity produced in the United States is generated from geothermal energy.  There are about 50 geothermal electricity plants in the United States, mostly in California and Nevada. Since the easiest place to access the water heated within the earth is along fault lines and on the edges of tectonic plates it’s not surprising that those two states have the most geothermal energy plants. Geothermal energy produces no pollution or greenhouse gases but can be expensive to utilize and can only be used in a small number of areas that have the proper geology.

4. Wind – Wind energy was probably the first type of natural, renewable energy that was used by people to provide power.  Wind energy has no pollutants or contaminates and is great for the environment, but sometimes it can be hard to harness enough wind to generate significant energy. 

Wind energy is mainly used locally, supplying electricity on and around wind farms.  The United States is third on the list of countries that have the most capacity to produce wind energy yet wind energy is not yet widely used in the United States.  In the past this was mostly because building the machines, called wind turbines, which are used to harness wind energy, was expensive and consumed a lot of natural resources.  Since 2005 there have been some great technological advances that have made it much more cost-effective to build turbines so the use of wind energy is beginning to grow in the United States.

One of the biggest problems of producing enough wind energy to meet the huge electricity demands of the people in the United States is the weather. Since wind can’t be grown like the crops that are used for bio energy, and wind is not as constant as the water used to create hydro or geothermal energy there is a limit to how much energy wind can produce. The variability of the wind is also a crucial factor. I there isn’t much wind on a particular day there might be very little or no electricity generated that day. Another drawback to wind energy is that a large number of very large wind turbines (they can run up to 25 stories tall) are needed to create a significant amount of energy.

Wind energy is a good source of renewable energy under certain conditions but in the long run wind energy is not going to be the best source of renewable energy for countries to use.

5. Solar energy – Solar energy is collecting and then using the energy generated by the sun for things like electricity and heating.  Solar energy is being used more and more by businesses and homeowners as a way to fight rising electricity bills and also to live in a more environmentally friendly way.

One of the first recorded uses of solar energy was in the 1830’s when a British explorer in Africa built a box to collect the energy from the sun’s rays and used it to cook his food. Today solar energy is used mainly to create heat and to create electricity.

There are two ways to generate electricity from solar energy. The first is using the Photovoltaic method.  This method uses a collection of cells made of certain materials to grab the sun’s energy and directly convert it to electricity. Since the sun’s rays are diffuse it takes a large number of these photovoltaic cells working together to provide any real power.

The second way is using solar power plants. These huge plants use sunlight indirectly to create electricity.  In simple terms the sunlight heats water which produces steam and the steam powers a generator that creates electricity.  There are 15 large solar power plants in the United States. 10 are in California, and 5 are in Arizona.

Solar energy is totally renewable and has no measurable impact on the environment which is why it’s the renewable energy system of choice for many environmentally conscious people. However there are a few drawbacks to using solar energy.  One disadvantage of using solar energy is that because the energy created by the sun is so diffuse it takes a lot of sunlight to generate power. This means that solar plants have to have a large surface area.

Another disadvantage of solar energy is that the amount of the sun’s energy that reaches the solar cells depends on things like the amount of cloud cover, the temperature, the time of day and other factors that can’t be controlled.  Scientists are trying to develop ways of using solar energy to generate large amounts of power, similar to central power plants burning fossil fuels today. Most experts agree that the best way to use solar energy for electricity and heating is for individual homeowners and building owners to use solar panels to generate heat and electricity for their own buildings.

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Solar energy begins with collecting the energy from the sun by harnessing it through the use of evolving technologies, and then using it for things like electricity and heating.  Solar energy is being used more and more by businesses and homeowners as a way to fight rising electricity bills and also to live in a more environmentally friendly way. Solar energy along with other resources such as wind and wave power, hydroelectricity, and biomass are sources of renewable energy.

Air Force Base Installation

One of the first recorded uses of solar energy was in the 1830’s when a British explorer in Africa built a box to collect the energy from the sun’s rays and used it to cook his food. Today solar energy is used mainly to create heat and to create electricity. Other solar applications includes space heating and cooling through solar architecture, potable water through distillation and disinfection, day-lighting, hot water, thermal energy, and the use of high temperatures for industrial purposes.

There are two ways to generate electricity from solar energy. The first solar power technology provides electricity through the use of heat engines or by using the photovoltaic method.  This method uses a collection of cells made of certain materials to grab the sun’s energy and directly convert it to electricity. Since the sun’s rays are diffuse it takes a large number of these photovoltaic cells working together to provide any real power.

The second way is using solar power plants. These huge plants use sunlight indirectly to create electricity.  In simple terms the sunlight heats water which produces steam and the steam powers a generator that creates electricity.  There are 15 large solar power plants in the United States. 10 are in California, and 5 are in Arizona.

Solar energy is totally renewable and has no measurable impact on the environment which is why it’s the renewable energy system of choice for many environmentally conscious people. However there are a few drawbacks to using solar energy.  One disadvantage of using solar energy is that because the energy created by the sun is so diffuse it takes a lot of sunlight to generate power. This means that solar plants have to have a large surface area.

Another disadvantage of solar energy is that the amount of the sun’s energy that reaches the solar cells depends on things like the amount of cloud cover, the temperature, the time of day and other factors that can’t be controlled.  Scientists are trying to develop ways of using solar energy to generate large amounts of power, similar to central power plants burning fossil fuels today. Most experts agree that the best way to use solar energy for electricity and heating is for individual homeowners and building owners to use solar panels to generate heat and electricity for their own buildings.

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