Dan:
Thanks very much for the detailed analysis. So the short answer is that a
48 v micro-inverter will be compatible with either module. I am old school
and like a little more head room than that, especially since we have not
learned yet if inverter damage will occur on overvoltage. I am anxio
Larry, one other consideration:
My own Ecogen appears to be able to produce well over its rating.
I have never had an amp-clamp with me when I have observed this,
but it appears to be quite able to do so. My Magnum 4024 will
charge at 114A (as measured on a TriMet
William,
PV temperature coefficient of voltage is a function of the number of cells in
series. For 72 cell PV (or two 36-cell PV in series), the coefficient is 2X
that of 36 cells.
Two SP75 in series, in an ambient temperature environment of -10C, and
presuming a cell temperature of -10C at r
3rd option would be to have a separate charger (IOTA) that just runs
from the generator. No pass through loads to the generator.
4th option would be to use a larger Kohler for backup. My experience is
that even if they don't think they'll need it, they eventually will
actually use it. Large
Why not utilize the Generac Smart switch and load management module? It
will disconnect up to four circuits based on load.
On Mon, Sep 30, 2013 at 4:02 PM, Larry Crutcher, Starlight Solar Power
Systems wrote:
> Wrenches,
>
> I want to use the Ecogen 6kW generator on a large off grid system. The
Larry:
Maybe a better approach might be to use an inverter with "Gen-support."
That is unless a system already exists that does not have this feature.
Plan B: use the gen start signal to disable one or more of the larger
loads.
I know this is not what you asked for, just trying inject some diff
All,
We are finding, with rare exception, that despite claims by On Demand
manufactures of their units being, "solar compatible" most do not reach the
common sense definition of being so. I would suggest anyone installing a solar
preheat tank before an on demand talk to no less than two peop
Hi Wiliam,
The max voltage rating of the M250 is 48V. When you ran the compatibility
checker, did you use 154mv/°C? You can either input the mV/°C or the
%/°C. You will need to be sure that you convert the 0.154 to 154mV.
On Mon, Sep 30, 2013 at 12:24 PM, William Miller wrote:
> Nick:
>
Wrenches,
I want to use the Ecogen 6kW generator on a large off grid system. The location
has very few overcast or rainy days and the generator will rarely be needed. My
concerns is nuisance tripping the generator output breakers if the household
load exceeds 6kW. The power system control has a
Nick:
What is the upper voltage limit for the M250? What happens when that
voltage is exceeded?
I am trying to use Siemens SP75 modules (two in series) and Shell SQ-150-PC.
Below are the specs. Note that two SP75s in series, if you multiply the
voltages by two, is identical to the SQ-150
Hi wrenches,
The M250 is not limited to 60 cell modules only. The M250 has an expanded
voltage window which will allow for it to be paired with a wider range of
modules. Enphase has an online module compatibility calculator which can
be used for checking a specific pairing in a specific location
Brian;
I have had that same aquastar 125 here since 1998. All I've had to do is
clean out the air filter every 3 years or so, and replace the magnetic temp
sensor switch once. I have clients up in Canada who have 5-6 of the Bosch
units at a remote fly-in fishing campmost are actually mounted ou
Hi Bill,
I'm still running an Aquastar 125BS (original French model, before Bosch bought
them) that I installed in 1990. I've had to rebuild the water valve once (after
a freeze up; it's in an unheated outside closet on the north side of my house),
the high-temp sensor once, and I needed to rep
As concerns standby loss, I can't speak to the others, but the Rinnai has a
simple on/off button on the front of the unit. A remote controller is available
which also provides the switch. It does take afew seconds for the unit to boot
up. Up to three remotes may be installed, making the on /off ope
Hi Bill, et al,
There are two major categories of tankless water heaters-natural draft
(which work very similar in control aspect to a conventional tank i.e..
no electric required, some form of pilot light) and power vented (all
power vented machines have need for at least a fan, most a compu
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