PV Watts does not account for shading / etc.
The NREL SAM model does a better job but is complex (as are most of the good
models).
We use PVSyst which has models for module level electronics.
Best Regards,
John Berdner
General Manager, North America
SolarEdge Technologies, Inc.
3347 Gateway
Hilton and Allan,
If the system has an Outback or any other charge controller with a diversion
load setting, the diversion to water heating or ice making can be made to
happen at a fully charged setpoint only. I have a system set up making ice
which does this nicely - it typically comes on
Stump the RE-Wrenches:
You know the NPR radio show, Car Talk, when they play Stump the Chumps? I
visited a manufacturing plant last week that has a 13.8 kV primary service
that is stepped down to 600 VAC secondary by an indoor 1500 A transformer
and distributed around the plant to the large
Actually, one is the manufacturer closest to you, Paul- the Solectria
SGI 225-500kW class does a 600VAC output.
On 2013/5/15 14:03, Paul Lyons wrote:
Stump the RE-Wrenches:
You know the NPR radio show, Car Talk, when they play Stump the
Chumps? I visited a manufacturing plant last week
Jesse,
Running PVWatts for various tilt angles with an azimuth angle of 135°
(or 225°) for locations in Minneapolis, shows that the optimum tilt
angle for annual energy production is about 35°, that's almost the same
as the optimum tilt with an azimuth of 180°. To maximize December energy
I did play around with numbers on there and came to that conclusion.
Considering I'm only 50 miles from international falls, it's even a clearer
choice then running the numbers in the cites.
Verification is always nice!
Jesse
Sent from my iPhone
On May 15, 2013, at 5:59 PM, Kent Osterberg
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