Posted by Vertigo on January 23, 2007, 8:11 pm
Hi there,
I am a 24 year old Physics student living in New Zealand. Ive been
doing my research into micro hydro systems for a year or 2 now, and
even built my own generator for the job.
Ive just about decided on a direct AC system, with connection to the
grid to sell my excess power, and draw from it during heavy load.
Essentially, the grid will act as an AC "battery bank", with possible
profits depending on the frugality of my living. I think this should
work fairly well, however, id like to refine the design even further.
I have strong beliefs that the grid wont be around forever, for one
reason or another, so would like to ensure the smooth running of my
energy supply. What I would like to know, from those more knowledgable
than myself, is would it be possible to include a DC battery storage
system on the side, without the grid taking all of its stored energy?
Basicly, something that will stay near fully charged during normal
operation, but in the event of grid loss, would kick in as a backup
system? This would make it a hybrid AC direct/DC battery system.
Much thanks,
Cameron
Posted by George Ghio on January 23, 2007, 8:27 pm
Vertigo wrote:
> Hi there,
>
> I am a 24 year old Physics student living in New Zealand. Ive been
> doing my research into micro hydro systems for a year or 2 now, and
> even built my own generator for the job.
>
> Ive just about decided on a direct AC system, with connection to the
> grid to sell my excess power, and draw from it during heavy load.
> Essentially, the grid will act as an AC "battery bank", with possible
> profits depending on the frugality of my living. I think this should
> work fairly well, however, id like to refine the design even further.
>
> I have strong beliefs that the grid wont be around forever, for one
> reason or another, so would like to ensure the smooth running of my
> energy supply. What I would like to know, from those more knowledgable
> than myself, is would it be possible to include a DC battery storage
> system on the side, without the grid taking all of its stored energy?
> Basicly, something that will stay near fully charged during normal
> operation, but in the event of grid loss, would kick in as a backup
> system? This would make it a hybrid AC direct/DC battery system.
>
> Much thanks,
> Cameron
>
Questions;
What is the output?
What are your loads?
--
Posted via a free Usenet account from http://www.teranews.com
Posted by Vertigo on January 23, 2007, 8:31 pm
Questions;
> What is the output?
> What are your loads?
not sure yet :) its all still research. i want to run a fairly modest
house of 2 people. output doesnt matter so much, as i will add more
generators as i need. just wondering if its possible to add batteries
to a system like this.
Posted by George Ghio on January 23, 2007, 8:40 pm
Vertigo wrote:
> Questions;
>> What is the output?
>>
>> What are your loads?
>
> not sure yet :) its all still research. i want to run a fairly modest
> house of 2 people. output doesnt matter so much, as i will add more
> generators as i need. just wondering if its possible to add batteries
> to a system like this.
>
The usual is a DC generator, small battery bank and inverter.
The reason is the batteries are DC.
What you want to do is possible.
Of course you will need to add a battery charger, to keep the battery
charged, and an inverter, to make AC when required.
Might be the best is a DC generator.
--
Posted via a free Usenet account from http://www.teranews.com
Posted by Vertigo on January 23, 2007, 8:47 pm
> The usual is a DC generator, small battery bank and inverter.
> The reason is the batteries are DC.
> What you want to do is possible.
> Of course you will need to add a battery charger, to keep the battery
> charged, and an inverter, to make AC when required.
> Might be the best is a DC generator.
Thanks George.
I already am familiar with the F&P Smart Drive motors, and have one
rewired into 3 phase power generation.
Im fairly handy with a soldering iron, so I will be making my own 3
phase bridge rectifier, and by the looks of it, a handmade inverter
wouldnt be too hard, barring getting it all certed by an electrician.
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>
> I am a 24 year old Physics student living in New Zealand. Ive been
> doing my research into micro hydro systems for a year or 2 now, and
> even built my own generator for the job.
>
> Ive just about decided on a direct AC system, with connection to the
> grid to sell my excess power, and draw from it during heavy load.
> Essentially, the grid will act as an AC "battery bank", with possible
> profits depending on the frugality of my living. I think this should
> work fairly well, however, id like to refine the design even further.
>
> I have strong beliefs that the grid wont be around forever, for one
> reason or another, so would like to ensure the smooth running of my
> energy supply. What I would like to know, from those more knowledgable
> than myself, is would it be possible to include a DC battery storage
> system on the side, without the grid taking all of its stored energy?
> Basicly, something that will stay near fully charged during normal
> operation, but in the event of grid loss, would kick in as a backup
> system? This would make it a hybrid AC direct/DC battery system.
>
> Much thanks,
> Cameron
>