Hi Off Grid Wrenches -
I need to select a propane generator to provide a steady state load of
approximately 8 kW for a offgrid Sunny Island system. The project is for
an art studio and the loads are primarily all lights.
I don't have much experience with generators so I thought I'd reach out
and
August,
SMA recently updated their SI firmware so it would better communicate with
the electronic governors on Kohler generators. On two projects so far, this
new firmware has proven not to work on Generac generators (now with their
own electronic governors, even the small air-cooled units),
August,
Most of the units around 8kw are lower quality units. Most are going to be 3600
rpm instead of 1800 rpm. I just saw an excellent writeup on gensets in a back
issue of Home Power written by Alan Sindilar??? Sorry about the spelling,
Alan. Excellent article. Perhaps someone knows the
a little off topic but I just connected a 1 kW generator (yamaha inverter) to a
2 kW solar and a Outback FX 3524 and a PVPowered 1100 with 1 kW AC coupled, it
just plain worked. no problems. I do not know how well the other inverter
generators work, but this is a case where when the batterys
Hi Daryl;
DId you AC couple it to the Outback AC output? or did you use the AC in on the
Outback?
I liked the little 1 Kw Yamahas for battery charging, but they are so small
that if any loads come on in the house, the pass through loads will trip the
Yamaha's overload circuit, and quit
HI August,
First you need to determine fuel type
diesel or propane/natural gas
next how much this will be used, and how long the fuel might sit.
next, you should look at size, for 8kw continuous, 10-14kw is first estimate.
fuel type and derating for altitude and temperature will help to
Ray,
I solved the problem of the small inverter/generators kicking out by just
making the generator and an IOTA charger as a subsystem.. I find the best
charger match for the small generator and hook up to the batteries. I started
doing this with grid tie with backup systems as the GVFX
I've used a separate charger before as well. The issue I had with the IOTA was
that I couldn't install the wiring in conduit for NEC compliance.
We recently set up a large grid tie system where we used the old SW inverters
for generator charging only, and the new Outbacks did the inverting.
It
HP131, June/July 2009.
Thank you for the compliment
Contact me off list if you need a pdf copy..
Allan
Allan Sindelar
al...@positiveenergysolar.com
NABCEP Certified Photovoltaic
Installer
NABCEP Certified
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