How To Build A Solar Panel - Part 17 - School Series Part 4

[faces1001]

thank you so much ,there were wonderful videos, thanks again...

[HealthfulMind]

Hi Robert

I am looking to produce 240 volts to create an independent electrical solar system. How would you recommend I approach this task. Would I commence by using Ohms Law to determine how many cells I require, if I were to purchase the everygreen cells at 1.75 watts that appears to be a lot of cells. Not sure if there are larger cells with higher watt capacity or have you any ideas how to approach this project.

[HealthfulMind]

Hi Robert

I am looking to produce 240 volts to create an independent electrical solar system. How would you recommend I approach this task. Would I commence by using Ohms Law to determine how many cells I require, if I were to purchase the everygreen cells at 1.75 watts that appears to be a lot of cells. Not sure if there are larger cells with higher watt capacity or have you any ideas how to approach this project.

[combatvetlawstudent]

What about btu's? Like if one has a small air conditioner of say 8,000 btu's, realistically can solar panels carry that much?

[solardiyguy]

Great video. Thank you so much for instructions. I'm on my eighth panel now (advertised 3x6 ~1.8w Evergreens). . I have a boat with an electric motor and when I dock it, I just hook it up to my 65wp panel and never worry that it runs out. Another one charges the pump in the filtration system of my artificial pond.

The point is that do it yourself is great if you're that kind of person that likes to put things together, but be careful when shopping online. I purchase them solarcellsmart. com

[cosmikat2003]

Thanks a lot..!!!

[tedohho]

Thanks again Robert. Now i know why I will also need the anolog meter. Thank you , for teaching us.

[shoehornO]

basiclly its a good set of videos

[mkbmonkey]

thx Robert.....just to let u know.....you're doing a great job.....I'm only 16,yet i can still follow your instructions to the letter.....when i have the money n time.....i will definitely make my DIY solar panel....oh...and may i recommend doing videos about other DIY renewable energy? the videos in youtube are somewhat bad if not difficult to understand....

[kareldezoonvanbennie]

the solar cells will add up , if you have 1 it 3.5 amp 0.5 v if you have 2 in series it's 3.5 amp 1 volt if you have 2 in parallel you have 7 amp and 0.5 volt

[kareldezoonvanbennie]

it's p/hour

[mkbmonkey]

ok ...one cell produces..1.75 watts...my question is ....how much time will it need to produce that much?is it ...1.75 watts per minute...or what...

[RobertSmith3]

Do not think of it as time. The solar cells produce 1.75 watts when they are receiving direct sunlight. I would probably recommend you get a digital multimeter to help understand this as well.

When you are measuring the volts/amps/watts for a solar cell, you don't care about the time. It's just an instant measurement.

[GuardianZeus21]

@mkbmonkey ummmm watts is in hours, so 1.75W/h when it comes to solar cells, his is by no mean consistent as the sun angle and cloud cover plays a part per hour. But Watts is always calculated in hours as in 1W per hour etc.

[ltbig24]

Ok, I am lost now, Here is why I one cell make 3.5 Amps how come the the whole panel only make 3.5 A mps as well

[RobertSmith3]

That's the max the solar cells can produce, some can produce more, but depending on how you hook up your solar cells (in series or parallel) will determine if you have the standard max Amps the solar cells can produce.

As mentioned in the video, to have more Amps, hook up your solar cells in parallel. For more volts, hook them up in series.

If you are still confused, I suggest visiting this forum and opening a thread about it: solarpowerforum (dot) net

[MegaCriterion]

@RobertSmith3 Quick question. What's the benefit or difference of making a panel producing more amps than volts?

[chazsql]

Thanks for this series of videos. You covered points that some other people skip over.

[tupac93013]

great videos

[virlusun]

Thanks for explaining. I am still learning with broken cells. I do too recommend to buy whole solar cells anyway you will end braking some panel while you learn. But broken cells are good to learn without expending a lot of money about how solar power works.

[Zalzal019]

Great video. What if there is only one broken solar cell running at 2.2 amps, will it drag down the amperage of the rest of the cells? Considering they are all in series?

[Anothercoilgun]

Current is equal at all points in a series circuit. However some rules can be bent and other can be broken :)

Any cell can be overdriven. A broken cell can perform just as well and even better if that cell receives considerably more light than all other cells. How, light concentration. Using a mirror to reflect light to a panel instantly boost is power so concentrated light to a broken cell will instantly boot a broken cell. But that which shines twice as bright lives half as long.