Here is a list of the changes included in each new version of our programs.  Big Deal Items (Major Releases only) are shown in Red Font.

Fun Fact: we have 4 different kinds of releases: 

• Major Releases: 
  • The second number changes (PAT 2.10.0)
  • You should upgrade immediately because we either found a nasty bug or put in an awesome new feature.
• Minor Releases:
  • The third number changes (PAT 2.10.1)
  • You should upgrade, but its not urgent.  We added something of little importance somewhere in the program.
• Test Releases:
  • The fourth number will change (PAT 2.10.2.1)
  • We only send these to individual users for testing purposes. 
• Earth Shattering Releases:
  • The first number will change (PAT 3.0.0)
  • Reserved for a change so big we'll probably need a music video with a marching band to properly communicate how big of a deal this change is.  ​

 

​PAT Trader

PAT Trader 1.17.1 (June 14, 2021)

• Security Enhancements.
• New Icon. Now customers who license all 3 programs can spell "PAT" with the PAT, APC, and Trader icons.  Fun. 

PAT Trader 1.17.0 (May 27, 2021)

• New PJM File Scraper.  Log in and watch this video to see how it's easier to use PAT Trader in PJM. 

PAT Trader 1.16.2 (May 25, 2021)

• PJM Data Miner access restored and improved. 

PAT Trader 1.16.1 (April 22, 2021)

• Bug Fix: SPP Hub mapping error resolved in 18 hours. 

PAT Trader 1.16.0 (April 16, 2021)

• Introducing the ARR Tool.  Check out the new ARR Tool Section in the Training Video Library. 
• SPP Mapping Improvements.  

PAT Trader 1.15.9 (April 14, 2021)

• Bug fix: Now it won't crash if you are missing a file in your MISO PAT file. 

PAT Trader 1.15.8 (April 6, 2021)

• New Graph on the Constraint Tool's Average Tab: float over Daily Shadow Sum and see a graph of weekly or monthly Shadow Sum, depending on the Constraint Tool's period.  Watch this training video. 
• Bug fix: Downloading Current constraints without ever having downloaded DA or RT constraints will no longer crash due to a missing Constraints folder.  Issue fixed in 26 hours.

PAT Trader 1.15.7 (March 10, 2021)

• Power Flow Tool Bus Name Display: Hover your mouse over a bus and the full name is displayed in the status bar. 
• Power Flow Tool Bus Dropdown: Select recently viewed buses from a dropdown menu on the main bus. 
• ​Improved SPP Mapping.  

PAT Trader 1.15.6 (March 9, 2021)

• Bug fix: when you try to save a CSV that you already have open, it no longer crashes. Fixed in 4.5 hours.

PAT Trader 1.15.5 (March 9, 2021)

• Security Improvements

PAT Trader 1.15.4 (March 8, 2021)

• Bug Fix: Shift Factor Save Button was only grabbing SFs for 100 gens at a time.  Now grabs all. Fixed in 90 minutes.
• Congestion Tool Real Time Outage LODFs now displaying properly.  

​
PAT Trader 1.15.3 (March 8, 2021)

• More formatting changes, improved interface mapping.  

PAT Trader 1.15.2 (March 1, 2021)

• Fixed formatting/screen resolution issues.  

PAT Trader 1.15.1 (February 25, 2021)

• Security Upgrade.

PAT Trader 1.15.0 (February 24, 2021)

• New Color Scheme!  New icons & uniform grid colors: outages in Blue, constraints in Green, Gens & FTR's in Yellow.  
• Outages Tool now links directly to Shift Factor Tool. 
• Many annoying system bells removed.

PAT Trader 1.14.0 (February 16, 2021)

• We replaced the FTP!  Now you can use the new Upload Button to share files with us. Check out the Training Video. 

PAT Trader 1.13.3 (February 12, 2021)

• New SPP File Required.  See the updated Data Requirements page in the Help File.  See the latest What's New Post.
• Constraint Tool: Now showing Shift Factors on Pricing Nodes in SPP 

PAT Trader 1.13.2 (February 5, 2021)

• Removed some annoying bells in the Shift Factor Tool. 
• Toolstrip buttons disabled until you load a case. 

PAT Trader 1.13.1 (January 29, 2021)

• Security and In-app Updater Improvements.​

PAT Trader 1.13.0 (January 26,2021)

• The Congestion Tool now has 5-minute Real Time Market Capability! 
• MISO mapping substantially improved through the use of a new file.  Change your PAT files!
• Run time speed and Security Improvements.
• Now you can calculate a constraint's LODFs for all branches, not just outages.
• The Congestion Tool now includes MISO Current Outages when forming network topology, substantially improving accuracy. 

PAT Trader 1.12.3 (January 25, 2021)

• Run time speed and Security Improvements.

PAT Trader 1.12.2 (January 5, 2021)

• Current Tool: Display now shows from-to bus names for moused-over outages.

PAT Trader 1.12.1 (January 4, 2021)

• Transmission Outage Tool's Planned Outage Tab: Checking "Show Changes" applies to a range of days instead of a single day, showing planned outages with a start or stop date within the range.  
• Transmission Outage Tool's Planned & Current Tab: Textbox for defining a minimum duration of outages to ignore changed from minutes to hours. 

PAT Trader 1.12.0 (December 16, 2020)

• In-app update added.

 ​​

 

​
​The PAT

PAT 2.20.2 (June 14, 2021)

• Bug Fix: The PAT can now handle HRX files from PROMOD runs for partial years that don't start at the beginning of the year. Issue resolved in 22 hours. 

PAT 2.20.1 (April 22, 2021)

• Bug Fix: Creating an Event File with FLO/CON Tool won't crash when interface names are absent in Nomograms. Issue resolved in 26 hours. 

PAT 2.20.0 (April 12, 2021)

• New Curtailment Congestion Drivers Tab on the Unit Siting Tool!  Check out the training video. 
• Non-conforming Load Bug Fixed.  A very rare problem explained in this training video. 
• Now you can see 8760 total curtailment on H-C Tool's front page when you select a renewable unit. 
• Batch Mode Additions: Batch-ask for the H-C Tool's Average Tab, and you'll get summer/winter ratings and a Shift Factor from source for each constraint. 

PAT 2.19.9 (March 16, 2021)

• Bug Fix: Batch Mode Congestion Report now properly showing contingency name.  Fixed in 22 hours. 

PAT 2.19.8 (March 10, 2021)

• Power Flow Tool Bus Dropdown: Select recently viewed buses from a dropdown menu on the main bus. 

PAT 2.19.7 (March 9, 2021)

• Security Improvements

PAT 2.19.6 (March 9, 2021)

• Introducing Silent Mode: Now your multi-hour runs (Contingency Evaluator, Unit Siting, etc.) will not be interrupted by pop-ups for any reason.  PAT automatically goes into Silent Mode when running multi-hour.
• Tiny nit: added "Base Case" to the H-C Tool's Average Tab Batch Output.  

PAT 2.19.5 (March 8, 2021)

• H-C Tool's Average Tab Batch Mode Changes: Monthly reports now batch available.  Also some small changes: column order, summer/winter ratings added. 

PAT 2.19.4 (March 2, 2021)

• H-C Tool Improvement: now you can pick a month and see which constraints are most impacting basis in that month. 
• Expanded Batch Mode: now you can batch-generate the H-C Tool's Gen Weighted and Average Congestion Reports.

PAT 2.19.3 (February 25, 2021)

• Fixed a bug in the Unit Siting Tool. 

PAT 2.19.2 (February 24, 2021)

• Bug Fix: Resolved an error when reading a CON file into the Contingency Evaluator. Resolved in 28 hours. 

PAT 2.19.1 (February 23, 2021)

• PFF Compare Tool: Compare a normal PFF with a tiny override PFF instead of auto-merging. 
• Upload Tool: Now handles groups with an "_" in their name. 

PAT 2.19.0 (February 16, 2021)

• We replaced the FTP!  Now you can use the new Upload Button to share files with us. Check out the Training Video. 

PAT 2.18.0 (February 11, 2021)

• Hourly Curtailment in the H-C Tool!  Now that we use the TRN, we can display hourly curtailment.
• New Data Requirements tab in the Help File: How to get data from PROMOD. (TVAL in the TRN)

PAT 2.17.8 (February 8, 2021)

• HRX Naming: Now we can handle segmented PROMOD solutions that end in "-S"... "-S-S1", etc..
• Bug fix: Unit Siting Tool was using the default MW capacity value instead of allowing you to assign.  

PAT 2.17.7 (February 5, 2021)

• LODF Tool: Constraint builder now allows for negative LODFs to be used. 

PAT 2.17.6 (February 5, 2021)

• RDCH format fix: switched columns were throwing the answer off by 100. Issue fixed in 23 hours. 
• Power Flow Tool: Rarely used Merge Buses button shows which Events need to be manually changed. 

PAT 2.17.5 (February 1, 2021)

• ​Bug Fix: Batch mode was not combining multiple segments correctly.  Issue resolved in 70 minutes. 

PAT 2.17.4 (January 29, 2021)

• ​Bug Fix: If your Event File had particularly bad nomogram data, it could crash the program.  Issue fixed in 23 hours.
• Security and In-app Updater Improvements.

PAT 2.17.3 (January 27, 2021)

• ​Bug Fix: FLO/CON Tool filter string was null causing a crash in certain circumstances. Issued fixed in 47 minutes. 

PAT 2.17.2 (January 26,2021)

• Tiny change: When you pick a basis hub on the LMP Tab of the Solution Window, we no longer display the Marginal Unit or Constraint grids as they do not reflect hub split.  

PAT 2.17.1 (January 25, 2021)

• Run time speed and Security Improvements.
• Loss Calculation Speed Restoration: Stopped calculating loss penalty factors when calculating hourly losses as added in PAT 2.15.1.  A big difference if you are solving 8760.  

​PAT 2.17.0 (January 22, 2021)

• ​​Batch Mode Added! Check out the new  training video.

PAT 2.16.6 (January 20, 2021)

• Bug Fix: The Unit Siting Tool was not reporting the LMP for Hubs selected for LMP tracking. Fixed in 3 hours. 

PAT 2.16.5 (January 20, 2021)

• Bug Fix: The FLO/CON Tool was not properly accounting for time varying branch limits.  Fixed issue in 17.5 hours. 

PAT 2.16.4 (January 18, 2021)

• Bug Fix: Now we can handle very large TRN files.  Issue fixed in 3 days: notified after 5pm on Friday.  Resolved by 5pm on Monday, a holiday. 
• Release Notes Added: Now you can click a link in the In-App update that will bring you to this page. 

​
PAT 2.16.3 (January 15, 2021)

• Using TRN instead of WTHC:  We've stopped using the WTHC file in favor of the TRN which has a better format, and more data.  Now renewable dispatch and curtailment are known precisely for each hour. 
• Bug Fix: Interface Limits: If your data had blanks for interface winter ratings, the PAT formerly set them equal to zero.  Now it sets them equal to the summer values.  Fixed issue in 19 hours. 
• Bug Fix: Unit Siting Topology Changes: When solving multiple hours where one required a topology change, the PAT failed to reset the new shift factor column for the injection bus.  Fixed issue in 7 days. 
• Bug Fix: Load Entities vs. Buses:  If you have more load entities than load buses, the PFF would fail to read.  Fixed issue in 22 hours.​

​
PAT 2.16.2 (January 6, 2021)

• H-C Tool: Bug caused a pop-up after solving an hour.  Fixed the issue in 47 minutes. 

PAT 2.16.1 (January 5, 2021)

• Power Flow Tool: Now you can add and create templates for multiple branch taps all-at-once.  Check out the new training video. 
• PFF Compare Tool: Now you can create PROMOD templates from an AC RAW File.  Check out the new training video.

PAT 2.16.0 (December 23, 2020)

• Gen Weighted Congestion in the H-C Tool!

​
PAT 2.15.1 (December 21, 2020)

• H-C Tool: New float over graph on the Constraint tab.  Hover your mouse over an hour column and see a graph of monthly shadow price sum. 
• Hub Templates: Read in a CSV to create a hub.  Save a hub template for putting it back into PROMOD. 
• Unit Siting Bug: In a very narrow set of circumstances, a newly installed unit would use the wrong cost curve. 
• Congestion Report Automatic Mode: Now the list of displayed hubs and zones will automatically filter to the ones relevant to your selected constraint. 
• Hourly Losses: Now you can save hourly losses.

​PAT 2.15.0 (December 16, 2020)

• In-app update added!

 

​
​APC Reporter

APC Reporter 1.22.3 (June 17, 2021)

• Bug Fix: If you are missing loss and congestion LMP data (the BS1 and BS2 files), APC Reporter will show zeros in loss and congestion weighted renewable basis calculation results. Issue resolved in 3 hours. 
• Security Enhancement: Now it's easier to reset your token.

APC Reporter 1.22.2 (June 14, 2021)

• Added loss and congestion weighted basis rows to Renewable Summary Tab (Interactive Version). 

APC Reporter 1.22.1 (May 26, 2021)

• Update to the MISO APC calculation method.  In test cases, APC Reporter successfully calculated $60,000,000,000+ in APC with 100% accuracy.   Across 8760 and 85 companies, the largest hourly difference (error) was $0.56.

APC Reporter 1.22.0 (May 18, 2021)

• Update to the MISO APC Calculation Method.  

APC Reporter 1.21.3 (May 6, 2021)

• Bug Fix: Now Reporter will run in single pool models like ERCOT.  Issue fixed in 3 hours.  ​

APC Reporter 1.21.2 (May 5, 2021)

• Bug Fix: Batch mode no longer crashes when the PFF is missing.  Issue fixed in 27 days.  Yikes.  

APC Reporter 1.21.1 (April 28, 2021)

• Bug Fix: Point-to-Point LMP now accurately calculates gen-weighted LMP on a monthly basis.  

APC Reporter 1.21.0 (April 22, 2021)

• MISO APC Calculation Method corrected. Now properly accounting for Emergency Generation distribution between companies.  Thanks for your help SW! 

APC Reporter 1.20.4 (April 16, 2021)

• Batch Mode Additions: Now you can pull Dispatch and LMP Reports for specified hubs and units.  See the updated Help File (Introduction/Batch Mode) for more details. ​

APC Reporter 1.20.3 (April 12, 2021)

• Now you can create a CSV with 8760 hourly dispatch for all your units!  See the training video. ​
• Bug Fix: Emissions Tab reporting for all units.  We caught it ourselves, so no fix time here. 
• Removed references to the now-dead FTR Tab on the Options Page. 

APC Reporter 1.20.2 (April 8, 2021)

• Removed the FTR Tab.  You should be using PAT Trader instead.  

APC Reporter 1.20.1 (March 9, 2021)

• Security Improvements

APC Reporter 1.20.0 (March 5, 2021)

• New Emissions Tab!  Now you can see hourly emissions by emission type for your selected thermal units, or dump all 8760 for all units into a CSV.  

​
APC Reporter 1.19.2 (February 26, 2021)

• ​Bug Fix: TRN reads properly when reading in two cases.  Issue resolved in 28 minutes. 

APC Reporter 1.19.1 (February 18, 2021)

• Bug Fix: Now the PJM method works even if you don't have a ACT or LOL files.  LOL.  Issue resolved in 2 days. We missed the email... give us a break.

APC Reporter 1.19.0 (February 16, 2021)

• We replaced the FTP!  Now you can use the new Upload Button to share files with us. Check out the Training Video.

APC Reporter 1.18.4 (January 28, 2021)

• Bus mapping for multiple TBUS records: If a unit is mapped to 2 buses (60% at one, 40% at another), the LMP reported will be from the majority bus, not the first bus record. 
• Capacity Factor was improperly using MAXCAP (reported zero when unit on outage)

​
APC Reporter 1.18.3 (January 25, 2021)

• Run time speed and Security Improvements.

APC Reporter 1.18.2 (January 22, 2021)

• Added totals row to PJM results, log message for missing command file, warning for missing PJM ARR file

APC Reporter 1.18.1 (January 21, 2021)

• Bug Fix: Renewable Summary's weighted congestion and loss columns were displaying the same value for all basis hubs.  Issue fixed in 5 hours.

APC Reporter 1.18.0 (January 21, 2021)

• Batch Mode Added! Check out the new  training video.
• Release Notes Added: Now you can click a link in the In-App update that will bring you to this page. 
• Bug Fix: Point to Point thermal weights were not accumulating correctly.  

APC Reporter 1.17.3 (January 6, 2021)

• Tiny bug fix: Renewable Summary label changes (MWhr to MWh) caused crash in certain circumstance.  Fixed issue in 48 minutes. 

APC Reporter 1.17.2 (January 5, 2021)

• PJM Method:  Now you can keep a single ARR file in the EXE folder instead of putting it in each PFF folder you want to use it in.  Reporter will look first in the PFF folder, second in the EXE folder. 

APC Reporter 1.17.1 (January 4, 2021)

• Changed how the unit filter works on the Options Page:  Only filters by long unit name.  Use the unit type dropdown added in 1.17.0 to filter by unit type. 

APC Reporter 1.17.0 (December 23, 2020)

• PJM APC calculation method updated to changes PJM made on 12/21/2020!  
• Gen Weighted LMP on the LMP Point-to-Point tab! 
• New row on the Renewable Summary tab: Gen Weighted LMP when SALE HUB < 0$/MWh
• Select units by category on the Options tab. 

APC Reporter 1.16.1 (December 21, 2020)

• Unit Hourly Graph: When you switch from a unit with TRN/UNT data to a unit without data, the graph wouldn't update. Now it goes blank.
• LMP P2P, Units with no Data:  Even if a unit is tracked, it may not have data in the UNT and TRN files to support tracking.  When this happens, we allow the name to appear in dropdown displays, but we now append "(No Data)" to the unit name string. 
• Renewable Summary Dropdown Year: The month/year label was off by +1 year.  We fixed it.
• Unit Hourly: Add a button that saves Excel results in a slightly different format.  Now its one tab per unit, all metrics for that unit on the tab vs. one tab per metric, all the units' values on that tab. 
• LMP P2P Components: Now there all the LMP components are displayed in the table.  

​APC Reporter 1.16.0 (December 16, 2020)

• In-app update added!​