Bug Report

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LeeMerrill
SAM Broken with Windows 10 1709 Fall Creators Update

SAM does not work correctly with Windows 10 1709 update released last week.

Menu systems do not allow for saving, renaming, changing models, adding battery storage, etc. all menus I tested seem broken with the new version of Win 10. The keyboard shortcuts do work, so it appears to be a UI bug.

I have a small screen capture (mp4 format) if the dev team needs examples.

Thanks.

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Allana
Changes necessary for SAM to build in the 2015 version of Visual Studio

Hello,

Do you have any estimate of when the open source SAM codes will be available for the 2015 version of Visual Studio?

Thank you in advance.

Best regards,

Allana Netto.

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klucas@energy.s...
Stochastic analysis - 1,000 samples breaks regression, 999 does not

Hi,

When running a stochastic analysis with 999 samples, the process runs fine. When running with 1,000 samples, it produces the output but then 'stepwise.exe' crashes for each output variable during the regression step. The regression output is blank. Validated this on two different project files.

This is the error message for each output variable:

Error running stepwise regression for 'Annual energy': Could not open result.txt file for reading.
Error running stepwise regression for 'Net present value': Could not open result.txt file for reading.

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klucas@energy.s...
Samples don't correspond to output in Stochastic analysis

Hi,

I am exploring the stochastic analysis section, and I am having trouble correlating the values from the generated input samples to the simulation output. As a simple case, I choose 'scaling factor' as the only input variable and 'electricity load total year 1' as the only output variable. I click on 'compute samples' and copy the window that pops up with the 100 samples and paste into excel. I close the window and immediately hit 'run simulations' and copy the output results into excel.

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7 posts / 0 new
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klucas@energy.s...
Bug in Cumulative hourly (subhourly) excess credited to next month option?

Hi,

I can't reconcile the results when switching between the two cumulative sub-hourly options. I set up a test file with one period, the same buy and sell rates, and a system that covers about 80% of load with a mix of surplus and consumption months.

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mhdraper
Entering Utility Rates

It's been awhile since I last used SAM. Have downloaded and installed latest version. Looking to simulate 1.37MW PV system. Want to model cash stream from sale to local utility Portland General Electric. SAM is crashing each time I attempt to locate PGE in utility database. "Loading" message stays on screen. Any attempt to select other choices on screen results in software freezing.

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oavaldezi
oavaldezi's picture
'Cash Flow' results tab doesn't have scroll bars

The 'Cash Flow' results tab doesn't have scroll bars: I have to maximize and then restore the SAM window for the scrollbar to appear.

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oavaldezi
oavaldezi's picture
Federal Income Tax schedule (instead of flat rate) error

I've entered a Federal Income Tax schedule, with the rate at 0% for the first 10 years, and 30% afterwards. When I export to Excel with formulas, the values for "After-tax value of energy generated by system" and "After-tax cash flow" are in error, because their formulas reference the "federal_tax_rate" name, and they should reference the "AnnualTaxFederal" name.

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tric
Irradiance data validity check too restrictive?

Dear SAM team,

I have encountered some errors relating to invalid irradiance data recently. The specific message I got are of this type:
out of range global irradiance 1513 W/m2 at time [y:2010 m:5 d:26 h:13], set to zero

Due to cloud enhancement, it is actually possible that the available irradiance can exceed the extraterrestrial irradiance for minutes at a time in extreme cases, see related reads below for readers of this thread. In my case I was simulating the system with minute data, containing such extreme values.

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jmarrec
Calculating window stays on top on mac

Whenever I launch a simulation, the calculating window stays on top of my screen, which is annoying especially when you launch several at the same time and with PV sim over analysis period enabled.

See screenshot.

SAM 2017.1.17
macOS Sierra 10.12.5

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