PV Gap

Glenda Said:

What do sustainable energy technicians do?

We Answered:

Entry level positions and the schooling that it takes to get these just opens the door to a job. Most of these kinds of jobs either require experience, which you will get in an entry level job, or higher education AND experience.
Unfortunately, no one ever uses all the things they learned in school. It would be shortsighted to think that if you learn all that, that you would use it. You would have to work for several different companies because none of them is going to do everything listed.

Carole Said:

I need help writing a Reserch paper?

We Answered:

Just set it up like there is only so many fossil fuels out there and growing demand will actually deplete all the reserves so the only way to a better and brighter future is undoubtedly Solar Energy (because it's unlimited and free to all).
So depending on the quality of the sources you have and the kind of quotes you're going for in your paper this should be easy.

Joel Said:

physics question: about batteries?

We Answered:

Power = voltage x amperage = violts x current = P = V I

Energy = Power x time of operation = E = P t

So time is t = E/(V I)

Now you have two batteries with a total of 3 kJ on energy, V = 2.7 V and I = 12 mA. Plufg into above to get time in seconds making sure you convert mA to Amps (1 mA = 10^-3 A)

Solar panel: Area = 0.2 x 0.25 m^2 = 0.05 m^2

Energy on solar panel = 12 MJ/m^2 * 0.05 m^2 = 0.6 MJ

Panel is 7% efficient so energy produced by panel = 0.07*0.6 MJ = 0.042 MJ = 42 kJ