Well known for speed, ease-of-use and accuracy, ASPEN software is the favorite tool of power industry engineers in large and small companies worldwide. ASPEN software is industrial strength: OneLiner and Power Flow can handle with ease networks with over 100,000 buses. Use the SLM License Profiler to determine the licensing system type of your new license file: 1 Launch the SLM License Profiler application using the Start menu: Start Programs AspenTech Common Utilities SLM License Profiler 2 Select Local License File as your License Server and browse to the location of your new file. 3 Click Load Information. 4 After the license information appears, click View Licenses. 5 In the License Type column, confirm that this new license file is either Network.
Contractor Licenses issued by the City of Aspen Building Department are valid jointly in Aspen and Pitkin County. These are issued separately from your Business License, both of which are required. Prior to applying for or renewing your Contractor License you must first have a valid BEST Card or other valid certification.
Apply for or Renew a Contractor License
In order to apply for/renew a contractor license, you will need to be registered on the applicant portal. Click here to begin the registration process. You will receive a confirmation email once you are registered asking you to set your password. If you need assistance, please contact [email protected] or 970-920-5065.
You will need to upload the following documents as part of your application process.
- Completed Affidavit of Insurance
- Every contractor must maintain at all times, employee and public liability insurance with a minimum limit of not less than $500,000 for one person and $1,000,000 for any one accident, and property damage insurance with a minimum limit of not less than $300,000 for any one accident.
- If this insurance expires, the contractor license is null and void.
- Completed Affidavit of Lawful Presence in the United States
- Proof of lawful presence in the United States, e.g. a valid driver's license, in compliance with state HB 1023.
- Photocopy of both sides of your current BEST card or other applicable state license.
- Once your license application is approved, you will receive an email notification in order to make payment.
Types of Licenses
The type of contractor licenses or registrations you need depend on your roles and responsibilities on a project. These licenses are valid in both Aspen and Pitkin County. Contractor license descriptions can be found here.
Homeowners that are undertaking their own contractor work are exempt from the licensing process, but they still must adhere to the Homeowner/Builder Requirements.
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To save files to local computer, right click on link and choose 'Save Target As...'. For Aspen Plus BKP files, replace “.tiff” file name extension with “.bkp”.
To save files to local computer, right click on link and choose 'Save Target As...'. For Aspen Plus BKP files, replace “.tiff” file name extension with “.bkp”.
NOTICE: All information on this page is subject to a disclaimer.
Last Updated: November 2018
Last Updated: November 2018
Algae Production via Open Pond Cultivation: NREL Algae Farm Model (Excel TEA Tool)
Contacts: Ryan Davis and Jennifer Clippinger
NREL 2017 Biochemical Sugar Model
Contacts: Ling Tao and Ryan Davis
- BKP File (Built in Aspen Plus V7.2)
Process Design for Biochemical Conversion of Biomass to Ethanol (2002 and 2011 Design Reports)
Contacts: Ling Tao and Ryan Davis
DW1102A — Files supporting the 2011 Design Report
Tables in the spreadsheet may differ slightly from those in the report due to small errors corrected after publication.
- BKP File (Requires Aspen Plus V7.2; does not require NREL databanks or Fortran compiler)
- Excel Spreadsheet with Macros (Requires Excel 2007 or later)
DW1107A – Direct Port of DW1102A to Aspen Plus V7.3
- BKP File (Requires Aspen Plus V7.3)
- Excel Spreadsheet with Macros (Requires Excel 2007 or later)
DW1111A – Based on DW1107A with dependencies on NIST property databank removed. Results are slightly different from the above versions.
- BKP File (Requires Aspen Plus V7.3)
- Excel Spreadsheet with Macros (Requires Excel 2007 or later)
I0203I — files directly supporting the 2002 Design Report
- Input File (needs BIODFMS2 in-house databank, USRAN4 object module, & Aspen Plus 10.2)
J0601A — updated to use AspenOne 2004 (both from command line & GUI)
- Input File (needs BIODFMS3 in-house databank & USRAN4 object module)
- BKP file for GUI (needs BIODFMS3 in-house databank & USRAN4 object module)
E0602A — updated to use HIERARCHY structure & AspenOne 2004 (both from command line & GUI)
- Input File (needs BIODFMS3 in-house databank & USRAN4 object module)
- BKP file for GUI (needs BIODFMS3 in-house databank & USRAN4 object module)
- 2 versions of a Material & Energy Balance Spreadsheet, using the Summary file & using the BKP file.
Biochem Supporting Files
- USRAN4 Fortran & object module
Simplified Biomass to Ethanol Process Model
Co-Located Corn Stover to Ethanol with Corn Dry Mill
- Aspen & Excel files: Combined Utilities
- Aspen & Excel files: Combined Ethanol Purification
- Aspen & Excel files: Combined product processing
- Aspen & Excel files: Combined C5 & C6 fermentation
Wood to Hydrogen Using Indirectly-Heated Gasifier
Contact: Abhijit Dutta
Link to design report (pdf format) Design for 'Current' Tar Reforming Technology
Design for 'Goal' Tar Reforming Technology
Supporting Files
- BATYD4 & USRDC1 Fortran & object modules
Biodiesel LCA
Report: Life Cycle Inventory of Biodiesel and Petroleum Diesel for Use in an Urban Bus
TEAM files
Wood to Mixed Alcohols
Contact: Abhijit Dutta
Supporting Files
- BATYD5 & USRDC1 Fortran & object modules
Ex Situ and In Situ Catalytic Fast Pyrolysis Models
Contact: Abhijit Dutta
Simplified ex situ and in situ catalytic fast pyrolysis models based on the 2015 Design Report of Dutta et al.
The following models are distributed under the GNU General Public License. You will need a separate license to use the Aspen Plus and Microsoft Excel software packages in order to run the models.
Ex Situ
- BKP File (Developed in Aspen Plus V10)
- Excel Spreadsheet (Developed in Excel 2016)
In Situ
- BKP File (Developed in Aspen Plus V10)
- Excel Spreadsheet (Developed in Excel 2016)