Need help for project plans (Solar and Wind Generator)

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Discussion Overview

The discussion revolves around the construction of an auto-sufficient energy station utilizing solar and wind generators. Participants explore the feasibility of calculating voltage and current entering a charge controller without direct measurement, the appropriateness of connecting wind turbines and solar panels in parallel, and the current requirements for charging a 12V battery.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks to understand if it is possible to calculate the voltage and intensity entering the charge controller without direct measurement.
  • Another participant suggests following the manufacturer's recommendations for connecting solar panels and wind turbines, indicating that charge controllers typically provide guidance on serial and parallel connections.
  • A participant shares personal experience with charge controllers, emphasizing their role in protecting solar cells and batteries from overcharging and back current.
  • Concerns are raised about the specifics of battery chemistry and its implications for charging, with a reference to the performance of different battery types under various conditions.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best approach for connecting the solar and wind generators or the methods for calculating voltage and current. Multiple viewpoints and experiences are shared, indicating ongoing uncertainty and exploration of the topic.

Contextual Notes

Some participants reference personal experiences and specific configurations without providing detailed calculations or assumptions, leaving certain aspects of the discussion open to interpretation.

SeaDawg
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Hi, I'm trying to build an auto-sufficient station, this is my "blueprint" for mounting everything together :

https://goo.gl/photos/4KLmhUc9EDccMPkYA

and I would like to know if it was possible to calculate the voltage and intensity entering the Charge Controller without measuring it, if connecting the WT and the SP in parallel is a good idea, and how much current intensity is needed to charge a 12V battery (even if it has to take many hours) any tip is appreciated ! ^^
 
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:welcome:

Every charge controller I have owned came with recommendations for connections including serial/parallel in the manual.

I would follow the manufacturer's advice.
 
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anorlunda said:
:welcome:

Every charge controller I have owned came with recommendations for connections including serial/parallel in the manual.

I would follow the manufacturer's advice.

Okay, i'll wait till it's delivered to check that configuration then, thanks !
 
I click on your link, get album missing.
A bit vague. Charge controllers generally 1.) protect solar cells or wind generator from back current and 2.) prevent the battery from being damaged by overcharging. For my 1st 100W Solar Panel I had a rectifier and a relay that cut charging above 13.6 volts for a 12 volt LeadAcid battery. Twelve volts because RV stuff is 12 V. My panel was 21.6 V open circuit, but lower at its max current of 1 Amp. A L-A battery can absorb 10 Amps so overcurrent not an issue. Other battery chemistries are less forgiving. I once lived on a farm where the windmill charged an Edison battery, 50yrs old, which ran the electric water pump in the well. Edison is not the greatest battery but it survives abuse.
 
shjacks45 said:
I click on your link, get album missing.
Yeah, the post you're trying to respond to is 3 years old. Thanks for trying to respond. :smile:
 

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