Posted by nospam on October 29, 2009, 2:36 am
breakeven, owing to all the previously lost energy.
confusing energy break even with economic break even. I
the real world.
go. I know I could run my home office off a couple of
For a laptop, printer and a couple of 15 watt compact florescent lights?
Hardly a huge expense, with 1000watt inverters $00.00 on ebay, a couple
of Sams' club deep cycle batteries ?
Posted by vaughn on October 29, 2009, 12:12 pm
Actually for system you don't really need inverters at all. I use
12-volt compact florescent lamps, and 12 volt adapters are available for
laptops. I use the lamps out in my yard, and my in-home 12-volt wiring
system is slowly growing.
Posted by Paul Keinanen on October 29, 2009, 1:21 pm
On Thu, 29 Oct 2009 08:12:41 -0400, "vaughn"
Which definitely contains an inverter, thus, adding cost.
Which possibly also contains an inverter to convert 12 V to 17 V.
This is a good strategy if the 12 V system total cost is less than the
cost of more common 120 V (US) or 230 V (Europe) systems added with
the inverter cost.
Posted by Josepi on October 29, 2009, 1:36 pm
My 120v inverter costs me 130-200 watts of power when the sun shines just to
Posted by vaughn on October 29, 2009, 1:44 pm
Actually, the 120 or 240 versions also contain electronics, which also
adds cost. That said, the 12-volt bulbs do cost more, mainly because they
are a specialty item.
Perhaps, but it would be an inverter sized for the specific job and would
only be on and taking power when plugged in, (which in the case of a laptop
could be rarely)
I do it mostly to avoid the 24/7 drain of a central inverter. (Yes, I know
that some inverters have power sensing, but they have their own issues.)
With or without the inverter, I would still want a separate, protected power
system, so that cost falls out of the equation. The outdoor lighting part
of my wiring system is inexpensive because it uses common low-voltage Malibu
lighting cable that is made just for that purpose. Inside my home I wire to
code, so the expense is comparable either way. That leaves me with the
option of converting any circuit to mains power in the future..