Solar Power At The Industrial Level
Several new solar power plants are under consideration in such locations as California and New Mexico who have regular patterns of Sun. It is fair game to inquire, then, on the overall effectiveness and practicality of solar power systems on the large scale. How much can solar power be used to provide for America’s energy base?
The proposed answer is simple. Pound for pound and dollar for dollar solar power stations can not create the output of a fossil fuel power station. The energy locked up in combustible fuels such as coal, natural gas, and diesel is enormous. As long as carbon based fuels can be obtained at inexpensive price points they will continue to keep the largest marketshare 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 fossil fuels we would have no way to support our industrial base and would be without out many of our modern technologies.
Most of our modern comforts and commercial activities are based on a foundation of 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. This also includes heavy agricultural machinery and sawmills required to provide basic products to our economy.
Simply put we use a lot of electricity in our regular daily lives. This energy is embedded in the infrastructure around us, our industries, and is most easily supported by combustive energy.
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 that they are undesirable or irrelevant. 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 actual solar panels, and does not account for the mounting and maintenance space. Being that solar panels provide peak power only 5 to 7 hours per day, then apples to apples we’re only getting the total output with more than eight times the space!
Where the weather and sunshine justify the use of solar power we need to integrate this useful power source into our energy portfolio. We must pay homage, however, to our modern combustion technologies. Modern combustion systems are cleaner and more efficient than ever before, and provide enormous amounts of power 24 hours a day. The energy density of fossil fuels is just to high to ignore when it comes to powering America’s industrial base.
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