Is it the consensus that Enphase 215 inverters on are the most
reliable micro inverters (even though the tech support may be lacking
these days)?
Someone on this list mentioned that the SMA micros had a rocky time
of it. What were the problems with these?
Do the SMA micro inverters taper charge when AC coupled with Sunny Islands?
Drake Chamberlin
Athens Electric LLC
OH License 44810
CO License 3773
NABCEP Certified Solar PV
740-448-7328
<http://athens-electric.com/>http://athens-electric.com/
At 03:24 PM 9/14/2016, you wrote:
Re 190's.
Not much to learn from dissecting a swollen 190. Most of the time
the swelling is caused by electrolytic capacitors that have failed.
Some very high current capacitors actually have brackets to bolt
them down to minimize swelling.
Frank BZP.
BZ Products INC.
8801 Gravois Rd.
St.Louis MO 63123 USA
314-644-2490
<http://www.bz-products.net>www.bz-products.netOn 9/14/2016 1:58 PM,
Benn Kilburn wrote:
You guys should really cut one of those swelled up ones and share
the photos with us :)
Benn Kilburn
SkyFire Energy Inc.
780-906-7807
On Sep 14, 2016, at 11:14 AM, Jerry Shafer
<<mailto:jerrysgarag...@gmail.com>jerrysgarag...@gmail.com> wrote:
The 190's had component issues which case them to balloon up
Jerry
On Sep 14, 2016 10:11 AM, "William Miller"
<<mailto:will...@millersolar.com>will...@millersolar.com> wrote:
Colleagues:
We have M190s fail in beach installations. Some have had the cases
swell up like there is a tumor inside. I haven't cut them open to
see what's inside because they need to go back to manufacturer.
William
On Sep 14, 2016, at 9:32 AM, Jerry Shafer
<<mailto:jerrysgarag...@gmail.com>jerrysgarag...@gmail.com> wrote:
Mike
I also work near the ocean, its all around me here in Hawaii, we
have had the 190's fail but not to environmental conditions and
very few issues with 215's. Do you have any pics of the damage as
l have seen very little salt issues.
Jerry
On Sep 13, 2016 9:11 PM, "Mike Nelson"
<<mailto:mdelectricso...@gmail.com>mdelectricso...@gmail.com> wrote:
I've had so many Enphase failures it's kind of ridiculous. We
install most of our systems near the ocean so corrosion has
played a big factor. The newer micro inverters are holding a much
better, 215 and 250's. I have learned over the years that SMA
makes the best product, and I mostly stick with them. Sometimes
micro inverters are requested or really fit the installation
particulars, so I still use them occasionally. I haven't yet tried solar edge.
Michael D Nelson
MD Electric & Solar, Inc.
<tel:707-684-0064>707-684-0064 mobile
<tel:707-884-1862>707-884-1862 office
<http://www.mdelectricsolar.com>www.mdelectricsolar.com
Sent from my iPhone
On Sep 13, 2016, at 6:23 PM, Rebecca Lundberg
<<mailto:rebecca.lundb...@gmail.com>rebecca.lundb...@gmail.com> wrote:
Esteemed wrenches,
I'm hoping the experience of this list can help give us a
broader perspective on the current market performance and as a
secondary concern, tech support (or lack thereof), from solar
micro-inverter manufacturers.
Are others having much trouble with micro-inverters? We have had
repeated issues with several different brands on our systems in Minnesota:
- 8 Enphase systems with mostly M210 and M215, have had to
repeatedly go back to sites to replace units. The new
replacement ones seem to be lasting better (we sure hope they
will). Enphase is harder to contact in recent years, but we're
happy they at least provide a predictable stipend. Are you also
having to replace a lot of this brand of product? Are the newer
models holding up better?
- We gave a new inverter busbar design concept a try (tenKsolar)
and though the micro-inverters were supposed to take turns and
be 'redundant,' the ones with APS micro-inverters needed 100%
replacement and the ones with Lead Solar micro-inverters have a
problem where if one of them fails it appears to send a signal
to all the rest so the entire busbar stops working -- in action
it's far from redundant. When we purchased the tenKsolar Rais
Inverter Bus (RIB) the spec sheet didn't tell us what brand of
micro-inverter they would use as the OEM so we couldn't research
the viability of the product or company or warranty stipend (or
lack there-of) of the micro-inverter OEM. We assumed it was a
tenKsolar product and they would provide warranty replacements,
service, and tech support, but our experience has been far from
that. When something goes wrong tenK says 'it's not our product
that's failing' because they don't actually manufacture the
micro-inverter (it's an OEM), the micro-inverter company says
'it's not our product' because tenKsolar has it wired and used
in a very unique manner specific to the tenKsolar product, so
both manufacturers are backing away from any responsibility. A
25-year warranty on the inverter busbar is a great concept but
if/when something goes wrong there is no support and no apparent
warranty at all except maybe they will send us a new component
that needs several hours of work to re-install, so either the
installer does the warranty work for free or the customer has a
very unexpected expense to get their system back up and running
a year or two after it was installed; we think both scenarios
are unacceptable (from our installer perspective :-), do any of
you have experiences you can share here?
I'm wondering if the climate in MN makes us an anomaly. Based on
these micro-inverter experiences we feel like the Rapid Shutdown
rule has forced us to use dc optimizers on residential
applications whether we want to or not -- is that pretty much
what all of you are doing too?
Rebecca Lundberg
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