|
|
Post by tattoo on Nov 17, 2017 16:21:48 GMT -8
rabird if I am using this forum is because I do not understand solar energy very well and without phone signal or internet access is very difficult to learn, I achieve talk to a person who installs solar panels and I oriented them as he said, I do not know so much about coordinates or numbers to calculate Watts or amps. Now I have 2 100w solar panels, 100ah battery and 400 Watts inverter. When I have a good signal I will look for information, for the moment I need your knowledge. Thanks Bird, it looks like you have a question.. |
|
|
|
Post by classhd on Nov 18, 2017 8:13:27 GMT -8
Guys, I'm just looking for help. The little internet that I manage to get I use it to come to the forum to ask my questions. Step by step I will learn and when I have stable Internet I will learn much more, for now I just want to get out of a crisis and make friends in the forum. Thank you all for your time, all of you are very kind
|
|
|
|
Post by Cosmic on Nov 20, 2017 11:22:38 GMT -8
Class,
Rabird is referring to the link he provided above. Plug in your country, city, and what direction your are going to point your panels. The information on the charts basically translates into Sun Hrs/day at what would be considered peak sun hours in Kwh/m2/day
The amps stated on the label on the back of your panels are produced at standard testing conditions or STC and are in wh/m2; usually the STC is 1000wh/m2 or 1kwh/m2. Cross eliminate Kw and m2 and you end up with h(of peak sun)/day.
Then multiply the more or less 5A (stated on the label on the panel) times your peak sun hours and you get total amph production per day.
Lastly batteries are not 100% efficient. You will need to put more power back in to get them back to their initial level of charge. A 100Ah battery is about 80% efficient, so you will need about 120Ah put back in (each time) it to reach the initial charge of 100 again.
Hope the picture starts to clear.
Best of luck, and keep at it.
Cosmic.
|
|
|
|
Post by classhd on Nov 20, 2017 14:12:52 GMT -8
rabirdSouth West 45 degrees from South Ponce PR Sorry for my bad english, it is not my first language.
|
|
|
|
Post by classhd on Nov 20, 2017 14:22:05 GMT -8
@cosmic
Thanks, the picture is clear know... Another solar panel it's on the way and I change the bestek 400w for a wagan 400 elite pro pure shine. Renogy solar panels are very effective, if my math it's ok 100ah/15ah=6.67 hours aprox. maybe 8 maybe 10.
I create another thread in the "I need a quote" forum, non-talk about two issues here and keep things organized could some one help me there? when the hurricane crisis end I want to be able to use the solar system to turn on a Mac mini and a monitor.
Thanks
|
|
