D
Dechucka
Guest
"Sylvia Else" <sylvia@not.at.this.address> wrote in message
news:bps8d9F3oogU1@mid.individual.net...
Not worth it then.
news:bps8d9F3oogU1@mid.individual.net...
On 31/03/2014 3:07 PM, Dechucka wrote:
"Sylvia Else" <sylvia@not.at.this.address> wrote in message
news:bps62mF3c7aU1@mid.individual.net...
On 31/03/2014 1:10 PM, news13 wrote:
On Mon, 31 Mar 2014 10:51:01 +1100, Sylvia Else wrote:
On 31/03/2014 6:34 AM, Dechucka wrote:
"Sylvia Else" <sylvia@not.at.this.address> wrote in message
Even getting the generator to run efficiently is a challenge when
you
have the kind of varying load represented by a house.
You don't use the generator to directly power the house but rather to
generate electricity to store if you use it as a long term system
long
term.
That addresses the efficiency issue, but at the very non-trivial
cost of
needing substantial storage capacity.
To date, the mains has (mostly*some sites) always been cheaper, but
increasingly there are brackets where it isn't.
There is also the reliability issue, resultant losses and recovery
ability.
Due to the "RV" market, you can get into small storage systems cheaply
before moving onto the higher investment.
The short term power requirements for a house can be quite high. Turn
on a kettle, a toaster, a microwave and a hair dryer all at once (not
so unlikely), and you're at around 6kW. Want the clothes dryer running
as well? 8kW.
Not a problem
So unless you're willing to reorganise your life, you'll need a system
capable of supplying power at that kind of level, even if not for long
periods. That quickly gets expensive, and the point of this was to
save money.
Which is what batteries can do. I run an off grid system at our holiday
house. The cost to convert to an off grid system from an on grid system
would be not worth it especially as we are running Gel-Cells. However
grid connection in our case was astronomical so it was good value, we're
running a wind and solar array with petrol generator emergency back up
Which is fine where a grid connection costs too much. But this sub-thread
is premised on the idea that one has a grid connection already, but
decides to relinquish it in favour of on-site generation in order to
reduce the cost.
Not worth it then.