Tina Metcalf asked:


Electricity generated from solar power (photovoltaic – PV) is steadily proving to be a clean, reliable and essential power.

Although naysayers, like fossil-fuel competitors, want us to think otherwise, I can easily demystify some common falsehoods about solar energy because progress and continued research proves that the current and future technologies of PV will meet our needs for cleaner power, which definitely is information worth discussing over any dinner party.

First of all most naysayers contend that solar energy cannot deliver any major portion of electricity to the states or the world for that matter. This is a falsehood based on the fact that PV technology can meet the required demand. That a 100-mile-square area of Nevada could supply solar energy to the states with all its electricity (roughly 800 gigawatts) operating reasonably efficient (10%) commercial PV modules.

Land, parking lots and rooftops are available for use to generate enough power. An estimated 17 by 17 miles per state is the required amount needed to produce 800 gigawatts. Apparently, there are enough “abandoned” sites that could be used for solar panels.

Supporters of solar electricity definitely have proven that PV can supply a major portion of the U.S. electrical needs with their projection of an increase of at least 15% of new added electricity capacity in 2020 with another increase of 10% by 2030.

Another falsehood I hear quite regularly is that photovoltaics will never become a huge industry. It’s a boutique business for a small group of privileged consumers.

Quite the contrary, solar electricity is a full-fledged business that has been growing steadily for more than 35% per year over the past 2 years. As a matter of fact, it’s been reported that the U.S.-based industry itself is reaching the $1 billion mark per year and providing 25,000 jobs. In the next two decades the growth rate is expected to rise to the $10-$15 billion level, thus provided 300,000 jobs by 2025. We are talking a major expansion of solar electricity as a tried and true power source.

Another very common falsehood that I hear at dinner party conversations is the PV is too expensive and will not ever compete against all mighty fossil-fuels – the industry will never manufacture the energy that it takes to produce the system.

Do I have a smirk on my face? Yes. This is so far from the truth, it is ridiculous. The overall cost of producing PV modules has dropped from 1980 at $50 per peak watt to as low as $3 per peak watt, presently, bringing the competitive applications to as low as 15¢-25¢ per kilowatt hour (kWh).

One can simply take a look at the market in California. The state incentives and net metering alone have places, PV electricity prices below 11¢/kWh, which is in the norm with some utility-delivered power. Designed for most domestic markets the trend is projected to continue through 2010 for most domestic markets.

Technologically the thin-film modules that are being implemented today payback in one year or even less, which means clean and practically free of overhead energy for the remaining 29-year life expectancy of the modules.



Contents provided by Blog Kiem Tien
nlwest21 asked:


Change is a watch word for our planet, and changes have been made that have enhanced the Earth. Scientist are exploring the negative effects of solar energy in order to safely replace the energy sources that we presently use with this form.

Solar energy has the ability to give us cheaper if not free electricity to our homes through the use of solar panels. However, before you jump on the band wagon and go out and try to start this new power trip there are a few things you should know. There are some people who believe there are many negatives to solar power.

Many people believe that thermal solar energy has many health risks when it is used to heat water and the air in their homes. This can happen when it has not been set up properly or the manufacturer made errors when producing it.

If it is unable to store the water properly it can cause fungus and molds to grow making anyone who drinks or uses the water sick. To make sure that this does not happen you can make sure that the units used to store the water have been built from materials that are made to prevent this.

PV solar energy also as health risks that you need to be careful of. PV (photo-voltaic) panels require millions of silicon dioxide in order to be used. That number is lowered when they are exposed to heat. The materials that are released during the refining process will increase the rate of toxicity and can affect your health. This is one of the more serious negatives of solar energy that is responsible for eleven to twenty one deaths per each quadrillion joules of energy that are created.

But do not let this deter you completely. Study up on the different types of solar panels and the negatives as well as the positives. You might find that they are worth it in the end.



Contents provided by Blog Kiem Tien

The handful of countries with the biggest economies and most emissions of greenhouse gases are meeting twice before climate-treaty talks culminate in Copenhagen in December. Should they make R&D, particularly on solar power, a priority? More on www.nytimes.com

A standard inverter tells the user when power is coming in and how much is going out. Learn about standard inverters for solar power from a professional in this free energy conservation video. Expert: Roger Bacon Bio: Roger Bacon is the owner of RGB Home Repair and Renovation in Santa Barbara California. He has experience in all phases of home repair and renovations such as plumbing, heating and solar power.

Running an entire house on solar energy requires quite a few panels. Learn about solar energy system sizes from a professional in this free energy conservation video. Expert: Roger Bacon Bio: Roger Bacon is the owner of RGB Home Repair and Renovation in Santa Barbara California. He has experience in all phases of home repair and renovations such as plumbing, heating and solar power.

San Joaquin Valley. We have been in business in Fresno since 1984 and have designed and installed some of the largest PV projects in the State of California. With over 2.75 million watts installed spanning over 400 installations, we’ve earned the right to be called the authority on solar. Solar energy can be a complicated endeavor. We make it simple. This video explains solar energy and shows Unlimited Energy’s depth and breadth of work. … solar energy power photovoltaic Fresno Central Valley …