Have any of you SunPower dealers used their modules with the
fairly new SMA line of transformerless inverters (8, 9 and 10 kW @ 120/208
only)?
I’m trying to get a compatibility answer directly from
SunPower tech support, but am wondering if any of you have tried this combo.
Thanks,
hello Wrenches,
I have an organization in Haiti that I have assisted with PV projects in the
past. They drill public wells and have a well (4" casing) that they would like
to pump with PV. Problem (one) is that well will draw at ~ 20 gpm and they want
~ 25,000 gpd from the well. I have tried t
Tom,
It can be done, depending upon how deep the static water level is and what
additional lift or pressurization needs to be overcome.
The SQ-Flex will run at highest capacity off an AC source, so I'd consider
using an inverter system and grid power, with additional solar designed to
supplement
If they are too tight this can happen also. I have asked my battery
distributor about torques in the past with no definite answers.
Bob Ellison
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Nathan Jones
S
The SQ-Flex can run directly from a high voltage battery/PV system, but with a
battery based system at over 60 volts or so, you have a lot of problems finding
a good charge controller.
So, even with the associated losses you are going to get with an inverter
system, that is probably the only go
Tom,
Warren makes a good point that I'll build on here. Just because
someone asks for a particular output doesn't mean you should give it
to them!
If their desired gpd requires an extreme solution, Just Say No. If
you have to add a large battery bank and inverte
I’ve used that line, Tom, with non-SunPower mods.
Those three models definitely should NOT be used with SunPower modules due to
the fact that there’s no grounded current-carrying DC conductor in the circuit.
marco
Have any of you SunPower dealers used their modules with the fairly new
Thanks for the responses all. I think it's interesting that the same
type of lug is listed for smaller wire in one meter socket versus
another. I have used Mick's suggestion in the past and I will try out
the ferrule or barrel connector on our next project.
Cheers
Carl
On Wed, Feb 9, 2011 at 10
Ditto on the AC option. Most of the "battery based" PV
systems I have seen outside the US are completely lacking
for maintenance esp. the battery bank. Most folks are not
aware of or have available distilled H20.
I saw a village PV - telephone system in Fiji that "the
batteries only work after
Needed - [1] Xantrex GTI box with functional guts, new would
be best.
Need to replace a lightning damaged GTI.
Schneider Electric does not have one.
Please contact off list, Thanks.
Dana Orzel
Great Solar Works, Inc
E - d...@solarwork.com
V - 970.626.5253
F - 970.626.4140
C - 970.209.4076
web -
Tom,
You might consider just using an SQ-O series Grundfos pump. They
operate at 120 VAC (or 240,
depending on the model) and have the capability of pumping up to 10 GPM.
You could buy two for the
cost of one SQ Flex and have the other as a backup. I use one of these at
my (solar powered) hom
HI all I check into the Tristar and it connects the same as the Outback, what I
could not remember was the set up and communications cableing. The set up
relies on the negative floating and in this case, the MS software and a Laptop,
sets the 36 volt charging profile, the communications port is
I see the FM60 had a 60 volt option. Why not just use a single one at that
battery setting for charging the battery bank?
Todd
On Thursday, February 10, 2011 9:44am, "Darryl Thayer"
said:
Hi all
I have attached a PDF of a charging scheme using Outback FM controllers. The
upper voltage 3
the post I responded to started with was the 72 volt nom battery pack charging
off from solar. the solution involved using two chager controllers in series,
charging off the array in sort of a bipolar fashion. I used this series
chargers to charge a "lead Sled" 72 volt car in my dark past. Th
I continue to have issues with inaccurate MX60 meters, I can calibrate for
EITHER the lower voltage setpoints OR the higher but can't get accuracy across
full scale. I've seen this on nearly every MX I've been around. This has forced
many a customer to run to start their genny on low V falsely.
I strongly agree with the "no batteries" approach. All issues mentioned come to
fruit and in far too few years those batteries will be abused to toast and now
the system will sit for a very long time if not forever and no water for the
community. Your best options are to live with what you can g
Just one note - if batteries fail - no, make that when
batteries fail - the system is dead. If a tracker fails, the system
continues to operate at a reduced output. So the risk is reduced. I,
too, would prefer a fixed array, but a tracker is a concession to
their gpd req
One of the MX options for the aux output in the older software options was to
switch on and off depending on the amount of current flowing through the unit.
This has been removed in the "upgraded" software. I will never upgrade those
old MX60s.
Todd
On Thursday, February 10, 2011 3:41pm, "Je
HI Allan,
I"ve got to disagree on the tracker part.
The cost to buy and ship a tracker to some far off land, I think if you do the
math, modules are cheaper and more reliable.
jay
peltz power
On Feb 10, 2011, at 5:20 PM, Allan Sindelar wrote:
> Just one note - if batteries fail - no, make th
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