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shah269

1,000 kWh? How many cells?

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Not a bad idea. Not huge money but not a bad idea.
In NJ average SREC value is about $300

Not much for you and me but for kids....yeah it's enough.



um ....... only if they are going to still be at school in 10-20 years time... 'till then, if it ain't paid off, they're not making a bean.

(.)Y(.)
Chivalry is not dead; it only sleeps for want of work to do. - Jerome K Jerome

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Well I'm a little confused...insert joke here.
If they say raise enough money to have a big enough solar array installed.
And if it pumps out 1,000 kWh they get a certificate to sell off.
And every time it hits 1 mega watts they will get another certificate?
If you can get the thing for free then maybe it will work.

But i'm getting very conflicting numbers, why is my math saying that it's only 6 units to make 1 meg of power? That can't be right for NJ!
Life through good thoughts, good words, and good deeds is necessary to ensure happiness and to keep chaos at bay.

The only thing that falls from the sky is birdshit and fools!

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>And if it pumps out 1,000 kWh they get a certificate to sell off.

Well heck get a 100 watt panel for $399 and connect it to a resistive load. It will eventually pump out 1000KWh. It will just take a while.

>But i'm getting very conflicting numbers, why is my math saying that it's only 6
>units to make 1 meg of power?

Uh - do you understand the difference between power and energy?

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>And if it pumps out 1,000 kWh they get a certificate to sell off.

Well heck get a 100 watt panel for $399 and connect it to a resistive load. It will eventually pump out 1000KWh. It will just take a while.

>But i'm getting very conflicting numbers, why is my math saying that it's only 6
>units to make 1 meg of power?

Uh - do you understand the difference between power and energy?



Well, he IS an engineer. ;)
quade -
The World's Most Boring Skydiver

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Uh - do you understand the difference between power and energy?


Yes and no.
Do englighten.
Life through good thoughts, good words, and good deeds is necessary to ensure happiness and to keep chaos at bay.

The only thing that falls from the sky is birdshit and fools!

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>Do englighten.

Energy is a measure of ability to do work. In electrical systems the most basic unit is the joule, which is a watt-second. Other popular measures are watt-hours and kilowatt-hours.

Power is the speed at which that energy is released. In electrical systems the most basic unit is a watt. Other popular measures are kilowatts and horsepower.

A system that has a lot of energy but a low power rating can release a lot of energy but it might take a while to get it. A high energy/low power battery pack, for example, would give you lots of range for an electric car but slow accelerations.

A system that has a high power rating but a low energy density can release energy very quickly but not for long. A high power/low energy battery pack, for example, would give you blistering acceleration but not much range.

In solar, maximum power is determined by how many panels you have. If you have 10 100 watt panels, and a converter that is 95% efficient, then you'll get 950 watts of POWER in direct sun. But that doesn't tell you how much energy you'll get, because that's instantaneous power.

To figure out energy you have to set a time and ask yourself "how much energy did I create during that time?" If you want to see energy over the course of a month, and you get 5 equivalent hours of direct sun a day, then the above system would give you:

950 * 30 (days) * 5 (hours) = 142,500 watt-hours per month = 142 kilowatt-hours

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