The Door Open switch is a very useful feature. I am trying to get Fronius
to put a digital shutdown terminal on its CL line of inverters, or all
inverters preferably. We need to pressure all the inverter manufacturers to
provide a logic in or dry contact method of shutdown.
Most ATS will provide a
Chris,
Even if a manufacturer agrees with you on incorporating an external shutdown
option, don't expect near-term action, especially on existing models. A
modification of this nature obviously affects the hardware aspects of an
inverter. This alone mandates retesting of at least that aspect
Andrew--Thank-you for your work to dampen the fire hysteria that's sweeping the
roofs of residential solar. Between the ridiculous setbacks (out here you'd
never see a firefighter on a house roof swinging an axe, but if so inclined,
they could go on the other side of the peak).
And now we
Does anyone have any experience or knowledge about Firefly carbon fiber
substrate sealed batteries? They have some very interesting claims about
cycle life and charge efficiencies.
TIA
Howie
--
Howie Michaelson
NABCEP Certified PV Installation Professional
Catamount Solar, LLC
Renewable
Does anyone have any experience or knowledge about Firefly carbon fiber
substrate sealed batteries? They have some very interesting claims about
cycle life and charge efficiencies.
TIA
Howie
--
Howie Michaelson
NABCEP Certified PV Installation Professional
Catamount Solar, LLC
Renewable
Does anyone have any experience or knowledge about Firefly carbon fiber
substrate sealed batteries? They have some very interesting claims about
cycle life and charge efficiencies.
TIA
Howie
--
Howie Michaelson
NABCEP Certified PV Installation Professional
Catamount Solar, LLC
Renewable
Wrenches,
I have yet to do a Transformer-less inverter and am understanding that they
are an ungrounded system and that both the positive and negative of each
string will need to be disconnected. I started with the sma SB series and
now find myself using mainly Enphase. The SMA TL dual mppt
1000 cycles at 80% DOD for a small format sealed battery is impressive.
It all gets down to what they cost, and if they really live up to those
numbers in the real world. It also looks like they only have a group 31
sized 12 volt model, so that limits their use to smaller GTB
installations
...600 Watt HOURS per day….
It must be active 24/7. If deactivated, the battery is disconnected. Thanks but
this is irrelevant now since I found a 500 amp solenoid that only consumes 41
WH per day.
Larry
On Feb 13, 2014, at 4:33 PM, Jerry Shafer jerrysgarag...@gmail.com wrote:
OK So if you
Bill H;
I believe I'm the firefighter you are referring to, and I'm allowed here on
the Wrenches list because I've been a professional RE installer since
1994--still my career-- and a firefighter in a rural area with a large
percentage of PV and wind installs. A couple talking points:
~Thanks
Howie,
I've taken a look at these and they have good stats are clean and colorful,
but are on the pricey side (fireflyenergy.com).
I think that this technology was originally developed by Caterpillar.
Good Luck,
Tom
Tom DeBates
Habi-Tek
Geneva,IL.
Jason,
See page 29 of the SB7000TL manual for grounding requirements and page 30 for a
schematic. Both the pos and neg are disconnected in the DC disco that comes
with the SB7kTL. One problem that we recently ran into is that the TL makes WAY
more noise upon start-up and shut-down than the
Hi Bill;
That was tongue in cheek about watching my back! But wow I've seen the
discussion get heated, even in face to face outreach sessions. The
firefighter you refer to is one of the top teachers on the topic in the US.
Providing an escape route on the PV side of the structure is really
I wholeheartedly concur with the critics here. [rant mode on]
I've long been very critical of certain elements of the Electric code...But the
state fire Marshall guidelines are approaching outrageous.
I feel very let down by the industry advocates, trade groups, and especially
those directly
William,
Your frustration with the process is understandable, and quite justified to a
great extent.
However, to say ... those directly involved in the rule making process...,
and alluding to your previous description including industry advocates, is
patently unfair.
I'm one of those
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