Alfred McCall's posts

Posted by Alfred McCall on Jul 26, 2010 07:23 pm

#1 -  Renewable Energy > Technical Discussion: Other > backup generator hookup
Hello All
I am putting in my off grid system, it will be a 3kw wind turbine with a 3 kw solar system, set up to a battery bank.

I want to have a back up generator for those rare occaisions that there is no wind or sun. 

Should I have the generator hooked to the charge controller to charge the batteries or directly to an inverter to power the home.

Thank You


Posted by Alfred McCall on Nov 17, 2009 08:21 am

#2 -  Renewable Energy > Technical Discussion: Other > backup generator.

I am building a home and plan on being off grid.  My system will consist of wind turbine, with a battery bank.  when I can afford I will add solar modules.  My question is regarding a backup generator.  I want to use a generator for charging the batteries when I do not have wind and the batteries get below a certain level.  do you think a diesel RV generator will be enough or should i go with a larger generator.

thank you

Posted by Alfred McCall on Nov 13, 2008 08:09 pm

#3 -  Renewable Energy > Technical Discussion: Other > Wind turbine and Batteries
Hello Again.

the wind turbine I am considering can be purchased either as a 24v or 48v, what do you think is a better way to go.

As for batteries, do I need them to be in groups matching the volt output of the wind turbine, i.e. 4-12v batteries or 8-6v batteries, etc. 

what about amp hours.  I was looking at a 12v battery with 212 AH, if I connect 4 of the 12v 212 AH batteries will I have 848 amp hours.

Thank You

Alfred McCall


Posted by Alfred McCall on Nov 10, 2008 05:05 pm

#4 -  Renewable Energy > Technical Discussion: Other > Wind, Solar, Propane Generator Combo
Hello All

I am new at renewable energy and have many questions.  My Wife and I are in the process of building a home.  The cost to bring in electricity is about 17k so we thought we might try Off-The-Grid.  We will be going with Wind, Solar, and Propane Generator Combo.  The Whisper 500 from Southwest seems to be the turbine we are leaning toward.  Our property gets quite a bit of wind.

The First of many questions that I have is.  Is there a particular component that ties all three electricity producers together and distributes the power.  What I mean is determine the needs.  Example 1.  Batteries are at full charge and wind is blowing at a good clip so I would like the wind power to feed directly to the house. 

example 2.  No wind, no sun and batteries have dropped to 70% so I would like the Propane generator to kick on to keep the batteries charged.

Or Maybe there is plenty of sun, the batteries are charged and I want the solar to feed directly to the power needs of the house?  I hope I am clear as to what I am asking.

Thank You

Al McCall


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