I notice when reading the flexmax 80 manual on-line that they recommend the
array V be 12v to 24v higher then nominal battery V. The system in question is
only 7v above nominal.
So what problems am I going to hear about the next time this dude calls me?
This system is GDI with battery backup
I suppose it would be an interesting exercise to do the math but my experience
with very cold groundwater input to a gas on-demand heater (Aquastar) showed
very efficient fuel usage even with the cold water input. It seems that
trying to heat a tank of that cold water with PV, especially if th
Good info, I thought maybe the warm days the system might drag the voltage to
low, that's why I asked.
So, on to MPPT controllers. Again limited use, so looking for some good info.
Kinda limited battery experience to be honest. Just very small cabin/shacks.
Rewiring an array in this scena
Hi Wrenches,
Now that the cost of modules has come down so much, has anyone out there
experimented with solar electric water heating? As in: direct connecting a
short series string of PV modules to a tank -style electric water heater with
an element of an appropriate voltage and wattage rating…?
Jesse.why wouldn't you wire at least 2 modules in seriesthis way
you have less breakers to deal with, less cord grips if paralleling in a
combiner box, less homerun cables to the combiner and you will also benefit
from greater energy harvest in your MPPT conversion particularly during
cold
Jesse,
Check with manufacturer to be sure. I've had AGM's in 24v system's set at
29.2 Bulk/Absorb and other manufacturers (Full River for one) that say 29.6
is fine. So, with an FM80 I would recommend 4 strings of 2 modules to ensure
that you can always get that VMP up where it needs to be.
David
Hello,
I'm interested in charging voltages for AGM batteries. After my visit to the
site mentioned in the battery box thread, I was thinking about the system.
New install, 8 solarworld 255s charging a 24V battery bank through a outback
FM80 (MPPT) All 8 modules in parallel.
VOC - 37.8
VMP -
Try:
Radiant Solar Technology
500 Milani Drive
Ukiah, California 95482
(707) 485-8359
http://www.radiantsolartech.com
Several years ago, they made two HDPE enclosures for me that each hold four
Rolls-Surrette batteries.. The enclosures have a deep bottom for containing
acid, and are ventila
For FLA batteries, we only use plywood for the boxes. I'm worry about
corrosion.
For AGM, we use metal, usually AL. Stainless is more expensive.
Thank you,
Maverick
Maverick Brown
BSEET, NABCEP Certified Solar PV Installer ®
President & CEO
Maverick Solar Enterprises, Inc.
Office: 512-9
After seeing this battery box and seeing the issues that can arise if a large
battery bank is deployed I contacted a local metal fab shop and asked for a
estimate on building one if I needed it. A 45"x40"x 20" battery box with
stamped louvers was about $1000. This was made out of stainless bec
Hello,
What types of problems/issues are people seeing when installing grid-tied or
grid-tied with battery backup systems when doing so on homes with off-peak
services? Most homes in my area have off-peak heat and water heaters and
depending on the system it can involve rewiring if the home h
Dear SWH Wrenches,
I was about to start out raging against the machine, but, what's the use. This
Tyfocor LS I am thinking is going to be a big issue. The &^$(*^ Schuco glycol
is of such a special nature not even the CIA can replicate it... and it is the
only glycol sanctioned by Schuco for
Thank you, David. I knew someone monitoring this list would know if it
would work.
Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com
On 5/13/2013 4:06 PM, David Katz wrote:
Hi Kent,
It will blow up. The Prosine is not bi-directional. You can only use an
H-Bridge type i
Hi Kent,
It will blow up. The Prosine is not bi-directional. You can only use an
H-Bridge type inverter.
David
David Katz
CTO & Founder
AEE Solar Inc
P: 707 825-1200
F: 707 825-1202
dk...@aeesolar.com
www.aeesolar.com
DISCLAIMER:
This communication, along with any documents, files or attachme
Has any put together an ac-coupled system using the Xantrex ProSine
inverter? I've got a customer that wants to try this and I don't even
know if it is possible to do with the ProSine. I'd rather not be the
first to give it a try.
--
Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsol
Hey all.
I had a wild trouble shoot this weekend as follows:
A So Cal Client calls & 1 of his 4 - MX60 CC"s out of operation, works 10
minutes and then shows gibberish on the screen and shuts down. To get it
awake again he needed to totally power it down for 15 min and restart.
Checked con
Hi Carl,
Yes. I ordered the WILO circ pump (and have received) from PAW last week. I
also have one coming from Schuco USA covered under warranty. Schuco is still
answering the phone in CT. See Sandor's contact below. He was very helpful,
unfortunately he had to source the pumps out of Germany a
Dave,
Were you successful in tracking down one of these pumps? We have a number
of Schuco units in the field all running fine at present, but it would be
good to have a part source when the time comes. Any joy locating a US
distributor for the Tyfocor-LS?
Cheers
Carl Adams
SunRock Solar
___
Passing this info along
One of our Enphase customers reported that his local electric utility
installed a new metering system, TWACs by Aclara. Once they installed a
new meter on the service, the system began registering ACFOOR (AC Frequency
Out Of Range) messages.He contacted Enphase and th
Take a charge controller with you that is sized for that array.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 5/12/2013 11:57 PM, Ron Young wrote:
Hello all and thank you for the illuminating replies. One thing
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