Jay
Sorry I should have explained that too... Absorb starts off at around 50% of
the available amps and tapers down to around 20% So I divided 20 by 50 = .40
there's a 5% loss factor hence .42
Tom Duffy
Senior Solar Design Engineer
Toll Free 888-895-8179
t...@thesolar.biz
Customer Service and
Hi Corey,
3M makes VHB (Very High Bond) glue used extensively in the automotive
industry to attach trim to body panels without fasteners. If the surface
is irregular you might want to use a double sided VHB tape with a thin
layer of foam between the two glue surfaces. I would suggest
Wrenches,
Can anyone provide links to online articles or resources on reducing
the electrical consumption of a hydronic boiler-based residential
heating system, in order to make it more electrically efficient for
an off grid home? Articles or links about efficient
William,
What does the PV array consist of? What size and type, and how many, modules?
Which TriStar? 45 or 60A?
What controller did she have before the upgrade?
The high charging voltage might be a sign of sulfation. Depending on her load
profile, that 8A charge rate might have caused
Brian:
I don't have the PV details handy but I will provide them.
Question: will a sulfated cell exhibit a SG of 1.26? I thought a sulfated
cell locked the acid onto the plates, minimizing the SG readings below that of
a healthy cell. 1.26 is a relatively high reading.
William
On Jul 23,
I know the MREA in WI has one installed on site, but not sure who installed it.
Do they have a representative on the list?
Jesse
Sent from my iPhone
On Jul 22, 2013, at 6:18 PM, wire...@gmail.com wrote:
If we have another long outage here in CT and we seem to have one every year
now, I
Did you look for dead cells? I've seen many L 16 sets (including my
own) only last 4-1/2 years, so that set was already almost done. If she
started mixing new batteries in before, she knew she already had a
problem. Did this system change from 12 v to 24 v? The rule of thumb
for eons
Tom,
Except that absorb starts off at 100% of the available amps, not
50%. Absorb starts as soon as bulk reaches the bulk voltage
setpoint. It starts out at the same current as was available in
bulk, then ramps back incrementally as the batteries continue to
What you have there is a set of completely hammered batteries. It sounds
like an off-grid system with parallel strings of batteries of different
ages being chronically undercharged., which is the renewable energy
equivalent of a car full of teenagers with guns and whiskey. Something
bad
The sulfated cell would show an artificially high SQ reading, if she
tried to add acid to it: another bogus trick people try, when their
batteries are going out. You might ask. Customers often have to try
every other trick in the book before admitting they need to pay for new
batteries.
Hi Eric,
While agree with most all your assessments,
Can you please elaborate on the sulfation causes the voltage not to climb?
This is quite counter to what I have seen and what the battery people say?
Thanks
Jay
Peltz power
Sent from my iPad
On Jul 23, 2013, at 2:48 PM,
Hi Carl and All,
This spring we had the opportunity to install a 5000-TLUS inverter for a
client, as a pre-release version. The inverter was commissioned on April
1st and has produced about 2.7 MWhs thus far. As mentioned, the secure
power supply (SPS) requires a dedicated outlet with a switch
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