Multiple single phase string inverters. SMA claims this is the preferred method
in Europe.
Might be more expensive, but does have some advantages.
Dick Ratico
Solarwind Electric
--- You wrote:
Hello fellow wrenches,
I am hoping someone here has come across this before and might have a
suggest
Hi Kirpal,
We borrow a FLIR brand of IR camera that a sister energy auditing company
owns. It works well for rafter-finding. I believe it was a mid-range
product, and had 0.1 F resolution. Worked well for us, but I don't have a
lot to compare with. T
Thanks
On Thu, Dec 13, 2012 at 12:10 PM,
I can only answer for the cold weather portion. I live in northern MN, my
hometown has a record cold temp of -60F (no wind chill). We see -40F every
year. I usually stay away from outside mounting, although we have installed
some Enphase and they have seen colder than their rating with no probl
Hello Wrenches,
I have a customer with questions. We had recommended a standard SMA 5kW
inverter for an outdoor installation.
He is an engineer, so he was looking at the specs for the transformer-less
version as well as the one with a transformer. He noted that the rated max
efficiency of the
Just to give a manufacturers stance on this topic:
We at SMA will never tell an Installer/Customer/Home owner that this is
recommended. It is always recommended that a Sunny Boy be placed supply side
when a genny is installed.
As stated before, when loads are at a minimum, the Sunny Boy knows n
Then after the kids finish the solar curriculum, teach them about small
wind with a KidWind classroom kit:
http://store.kidwind.org/wind-energy-kits/complete-kits/advanced-wind-experiment-kit
and set them up for a long career in small wind power filled with stress
and poverty... Because wind is so
While it's a little more involved, a solar car race can provide a full half
day hands-on event. It involves gear ratios and hot glue guns so will
clearly take some volunteers to help out with the kids. The race afterward
will get the kids outdoors in the parking lot where local vendors can get
invo
Hello fellow wrenches,
I am hoping someone here has come across this before and might have a
suggestion or two for us. I have a client who has a large piece of land
and the financing for a 500 kw solar "farm" in Maine. The predicament I
am in is that the closest three phase primary is more than
Chris,
It used to be Amie but now you need to contact Rae Parafiniuk
. She takes care of the warranty claims. FYI, you
should replace ALL the modules.
Larry Crutcher
Starlight Solar Power Systems
On Dec 13, 2012, at 1:49 PM, Stephen Kane wrote:
Chris,
The last time I handled this issue t
As I understand it, the reason was... by removing the flanges on the frame it
made the module slightly smaller and therefore increased its efficiency rating.
Wayne Irwin, EE
Director of Engineering
Pure Energy Solar International Inc.
State Licensed Solar Contractor
License # CVC56695
wa...
Well summarized. I think your mileage would vary based on the
anti-islanding algorithm used in the inverter and the generator's
ability to regulate frequency. So while it may "work" in that an
inverter syncs to a small generator's output, it's very unlikely that
reverse current backfed into the
We call that a light breeze. :)
172 Ultimate Design Wind Speed, Exposure Category C in Marco Island, FL.
Not easy to meet -80+ PSF pressures...
*Jason Szumlanski** *
*Fafco Solar*
On Thu, Dec 13, 2012 at 9:39 PM, Chris Daum wrote:
> **
> Well, the highest winds I have *personally* witnessed
Why did Sanyo/Panasonic stop making their HiP mods? Anyone know? Problems?
Performance issues?
Thanks,
marco
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