Peter,
You are wrong about Vmp being a function of irradiance. It is a function of
temperature and remains unchanged from 100 to 1000W/m^2/.
Max power trackers look at the product of Volts and amps. The dithering
routines can vary dramatically from company to company.
Bill.
-Original Messa
Thanks, Kurt & Ian~
The Dawn Solar arrangement makes me think of a similar looking setup from
American Solar: http://americansolar.com/product-solar-roof.htm
The American Solar setup heats air which they claim can then heat water. Hmm.
My inner geek suspects that both of these systems would yie
Mick,
referring to
there's not an auto-idle switch on that genset which may have
accidentally been set for auto, is there?
His generator was actually running in idle mode, operating the
household loads when I got there and the first thing I discovered was
that the voltage was ~90 volts co
Ron wrote: "The owner told me...that someone had wired a switch incorrectly
and when he turned it on the system "shut down". He then re-wired it and
everything appeared ok but I'm wondering if this fried a board."
Mick replies: I've seen several times with Outback and other brands (going as
far ba
Hi Mick & Jay,
I disconnected the gen. line to the inverter and tested the output
and got steady voltage. I then re-connected the inverter and tested
the gen. output from a different outlet and got steady voltage, both
around 122v. So I've ruled out the generator. It was my first suspicion.
--On Saturday, December 27, 2008 8:08 AM -0700 mick abraham
wrote:
I'm looking for thermal collectors which integrate into the roof of the
building. These would heat glycol to modest temperatures, for domestic hot
water.
Dawn Solar uses a design which effectively puts radiant floor tubin
Hi Mick,
Have you looked at the Velux system? The collectors are installed
about the same way as skylights are.
I don't have any experience with this system, but will forward
(off-list) some photos I received.
Best,
Ian
Greetings,
I'm looking for thermal collectors which integrate into
Hi Ron,
Almost for sure its the genny. What type and when was it last
serviced and how many hours does it have?
if the voltage is going all over the place really quickly then its not
connecting to the inverter at all.
So here is a test that might help. Turn on a resistive load such as a
It sounds like the AC charge current is set to high, with the batteries being
low the inverter charge rate is overloading the gen set. The gen set voltage
drops and the inverter releases the genny and the voltage returns, the inverter
reloads the genny and the cycle repeats. If this worked befo
Greetings,
I'm looking for thermal collectors which integrate into the roof of the
building. These would heat glycol to modest temperatures, for domestic hot
water.
Any leads for this type product...on the List or off...would be appreciated.
Mick Abraham, Proprietor
www.abrahamsolar.com
Voic
Sounds like a generator issue. Maybe a connection. maybe a generator control
board. The generator out voltage test, are you sure you're seeing the true
generator out? Or are you seeing the inverter (i.e., a Gen. Service
Receptacle).
Maybe a gen set tune up? Sounds like the inverter is fine. my
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