Energy 4 Earth- Home Made Energy Reviews

First generation solar cells began with a large amount of Silicon and only single junctions.
Second Generation solar cells called thin film cells, began with much less Silicon. In addition first generation solar was improved with multiple junctions.
Third Generation Solar Cells aim to keep Silicon use low while enhancing cell efficiencies.
In addition there are technologies that blend electricity generation with heat generation. And also aim to reduce installation and system design costs through building inverters inside solar panels. There is also technologies that use multiple junctions and concentration to enhance efficiencies. And aim to use bio-based plastics to replace petroleum based plastics used as back sheets in solar panels.
Idea’s of the future include thin film concentration solar cells, thin film multi-junction cells, and thin film multi-junction concentrating cels.

The days in outer space are not short enough.
The days in outer space are not long enough.
The solar cells might get wet.
There is not enough concentrated sunlight in outer space to power the cells.

I am very concerned about global warming, and when I grow up (I’m fourteen), I plan on helping to solve the world’s problems by looking into environmental research (college course options would be nice to include in your answers) and I’m wondering currently how much it costs to install solar cells and how long it will take to pay off.

Go to one or more local stores that sell electronics equipment. Make a list of all the products you can find that are powered by solar cells. What conclusions can you make about the kinds of products that are made to be solar-powered? What other products do you think could be solar-powered?

I’m trying to decide whether to use solar cells as a primary means of electricity in my house. Is it a good investment or not. This area gets plenty of sun and the electric prices are going up. So can anyone help out?

I knew I’d heard something about researchers developing new solar cells which will triple the output efficiency of solar panels. When I go online to research this…NOTHING since the initial discovery at Berkely in 2002. Did some oil company gobble it up?

What is the process to make solar cells to which an ordinary man can also make ?

Sure, we all know that solar panels are green and clean, but how really green are they? Wouldn’t it be nice to actually see some facts and figures for a change instead of hearing phrases like solar cells save oil or solar cells reduce air pollutants? Anyone can say that about anything green, but here we will now look at some honest to goodness hard facts to ponder.

First things first, a 2.5kw solar panel array, which is very common, will supply about 380 kilowatts per month calculated with 5 sun hours per day. The average house, meanwhile, burns about 700 kilowatts of electricity per month. In raw terms, those electrical savings will amount to over 300 barrels of oil saved per year, or the equivalent mileage of 270,000 driven miles.

Want more details? Having that system saves 2 tons of coal burning which generates the same amount of electricity. Needless to say, that cuts down on the equivalent amount of acid rain emissions, and literally reduces all greenhouse gases by over one quarter of a million pounds!

Over 25 years, in a botanical and environmental sense, this is like planting 5000 trees, doing all that good from the roof of your house! Now, , couple those figures with the rising cost of electricity, and you are doing just as much good for your pocketbook as you are for the environment.

Those are just the facts. But maybe best of all, knowing about all of this and then going solar gives you something much better then just facts, it gives you some piece of mind.

Meaning to say, which would you mostly prefer?

I used a solar power calculator on SharpUSA. And found that $50,000 worth of solar cells would save only $500 per year in costs. Is it possible to sell these kinds of new technologies? That would take 35 years to payback. With the economy about to break, how can we make the change, with 35 years payback? Man this isnt gonna work.