Excel Exchange

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Excel exchange error – could not open file


I have been trying to recreate some legacy files (2014.1.14) in the latest version of SAM. I found that in attempting to run a simulation an error would appear stating “Excel Exchange Error: Could not open file” when trying to run an excel exchange case.

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bruna's picture
Send data to Excel


When I try to send the data to excel, it goes from a value that's suppose to be 1.0 to 100.000. Also, when I check the battery data and try to send those to excel, they come all wrong, it's suppose to be a value 1e^-16 and ir goes 1e^-11 or 1e^-12, it doesn't have a pattern.

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Connecting SAM to complex storage Excel models

Dear Paul,

Thank you for developing a tremendous asset for the renewable industry.

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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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Data Transfer from .xls Files

Is it possible to read the full contents of .xls files into an array, without having to name the range of cells being read (similar to how csvread can read .csv files to an array)?

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Bulk CSV Exports

I have a mess of projects I'm modeling. I would like to export the summary, monthly, and annual data tables to csv for all the projects in bulk. All in one go instead of going from project to project and exporting each one by hand. Is it possible to script this in SAM? In case anyone's curious, I'm working up evaluations for several parcels of land in a small city. I want to get this all into something like R or Excel. I'm using R to make some prettier plots than SAM can do. Excel makes it easier to format tables for insertion into a written report.

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Sending Values from SAM to excel

I want to send a calculated value from SAM to an excel-workbook using an lk script, I'm running the script with no errors but nothing is changing in the excel workbook Book100, I tried the same script also for different workbooks and also it's not working. Can someone please help me with that. Thank you

The Script:

/set the current SAM case

//create an Excel object and open the Excel file
xl = xl_create('C:/Users/Admin/Desktop/SAM work/Book100.xls.xlsm');
path = path_only( project_file() );

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Hourly excel exchange input?


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How do I export SAM to Excel including formulae?

I want to see how LCOE is calculated in SAM. How do I export the formula to Excel?

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Paul Gilman
SAM at MREA Energy Fair 2016

If you are planning to attend the Midwest Renewable Energy Fair this year (June 17-19, 2016) in Central Wisconsin, I will be giving a three-hour workshop on SAM on Friday, June 17 from 10 am to 1 pm. The workshop is free, but you'll need a ticket to the fair to attend. (This is an in-person workshop, not a webinar.)

I hope to see you there! If you do plan to attend, be sure to bring your laptop with SAM installed and let me know what you are interested in learning about so I can prepare examples for a demonstration.


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