Total Activity is now shown as an extra tab in the Analysis View for Demand activity level analyses. Total Activity shows the result of multiplying down each of the Activity Level branch chains. A simple example is shown below. This has been added to make it easier to immediately see the implications of the data you enter for Activity Levels.
|Branch||Activity Level||Total Activity|
|Households||8 million||8 million households|
|Rural||50% share||4 million households|
|Refrigeration||20% saturation||800 thousand households|
Optimization: Links to excel spreadsheets are now cached on disk between LEAP sessions, so that Excel itself only has to be opened by LEAP if the spreadsheet has been edited. This greatly reduces calculation times for Areas with many links to Excel spreadsheets.
Reporting of Environmental Loadings: Environmental reports in Results view now have an extra dimension: fuels.
Data links to TED improved: in addition to
copying data from TED for emission factors you can now establish links to the
data in TED that will be updated whenever the data in TED is updated.
Automating LEAP:The latest version of LEAP
includes an experimental new feature that lets you automate LEAP from any
standard Windows programming language such as Visual Basic or Delphi
(which LEAP itself is written in). LEAP can also be automated using most
standard scripting languages such as Visual Basic for Applications, which is
built into Word, Excel and other parts of Microsoft Office. The system is
experimental and currently only supports a few commands, but if there is
sufficient interest the number will be increased in the future. For more
information, please see the LEAP Help files under topic: Automating LEAP.
Updating improved.The built-in
update system has been changed to use a passive rather than an active FTP
protocol. This make the system work for those using LEAP behind an
Export to Excel improved. Export now has a new configuration screen, which allows you to set all of the export options. Two new options have been added. The first lets you either export all expressions, or not export inherited expressions. The second lets you export all branches for either the current scenario or for all scenarios.
Import to Excel improved.Blank
expressions in Excel will now cause the corresponding LEAP expression to be
cleared. This is particularly useful if you wish to reset large numbers
of expressions to their inherited expressions.
Optimization: screen refresh speed improved when entering data and navigating the tree in the Analysis View.
Email Connectivity: Emailing no longer requires that you have an email client such as Outlook Express or Netscape installed and configured on your PC. Sending emails is now handled by LEAP on its own. It only requires that your computer has a live Internet connection.
Error logging and reporting:Errors can now optionally be sent to SEI-Boston to help resolve them.
When an error occurs, if you have a live Internet connection, LEAP will give
you the option of sending an email report to SEI-Boston along with your own
message and a screen-capture showing what was happening in LEAP when the error
Charts: added ability to show line charts with X axis cutting the Y axis at the minimum value (instead of only at zero).
Excel Links: When linking to live Excel
spreadsheets, LEAP now automatically refreshes Analysis view data if Excel has
been edited, and also automatically recalculates LEAP before showing results,
even if no expressions have been edited.
- Moved the "What's New" page out of the Help file to reduce need for downloading updated help files.
- Splash-screen updated to match new design for LEAP web site.
- Links to Technical Support Forum updated to point to new forum.
- Optimization to improve speed of rendering fuel economy reports.
- User Variables: In addition to the many variables defined by LEAP, you can now also create up to ten of your own User Variables. Once defined, each variable will appear as a new tab in the data entry screens of the Analysis View.
- Smart Help Added to Expression Builder: The expression builder will now automatically show the help topic associated with the function highlighted in the edit box in the bottom part of the builder screen. As you click on a word in the edit box or move the edit cursor, the help topic displayed in the top half of the screen will automatically update.
- New BaselineScenario & ParentScenario Functions: New functions have been added for use when constructing alternative policy scenarios in expressions. These let you refer to the value of a variable in the baseline or parent scenario, which is useful if you want to enter changes in values ("deltas") with respect to another scenario rather than having to enter absolute values.
- New ExpInterp Function: A new function has been added that performs an exponential interpolation between specified data points. This function is similar to the Interp function that performs a linear interpolation, and takes the same parameters as that function.
- Driver Variables category on the tree has been renamed. It is now called Key Variables. The old wording had caused some confusion to those doing transportation analyses!
- Calculation Progress Dialog now displays calculation time in seconds and disables clicking on main form during calculation.
- New Results Variable: Average fuel economy can now be reported when using LEAP for Transportation analyses.
- Calculations Improved: A new type of Transformation module has been added to deal with cases where you wish to have multiple independently dispatched processes, each of which has its own output fuel. To create this type of module, choose simple, un-dispatched module on the Transformation Module Properties screen. This type of module is useful when you want to represent transport losses in a number of different fuels. Previously, this had required a separate module for each fuel, which was cumbersome to create and made for quirky-looking energy balances. For this new type of module, the output fuels folder is not used. Instead, you pick the output fuel for each process on the efficiency or loss tab. The Transformation Module Properties screen has also been updated and redesigned to accommodate this change. For more information, see the new schematic diagrams of simple modules and standard modules.
- Export to Excel/Import From Excel Improved. In addition to importing and exporting data and expressions, these now also import and export the scaling factor and units associated with most variables. This can be useful if you wish to change the scale or units of many branches at the same time (e.g. if changing the currency unit for a whole study). All you need to do is (1) export a variable from LEAP to Excel, (2) change the units by copying and pasting ranges of cells in Excel, then (3) re-import the spreadsheet.
- Charts and Tables Enhanced. When branch names are displayed in charts and tables, they will now be shown in the same order as they are listed on the Tree. Previously, branches were ordered alphabetically. Tip: you can use the Up and Down buttons on the tree toolbar to set the order of branches. In addition charts now split long axis labels into two or more lines of text.
- Sort Branches: A new option has been added to the Tree menu and pop-up, which lets you automatically sort branches alphabetically.
- Technical Support Group: added a new menu option in LEAP to allow users to automatically register for the free LEAP Technical Support Group.
- Calculations: LEAP no longer forces you to recalculate results after all edits to data. It still tells you when results need to be recalculated to ensure that results are up-to-date, but it now gives you the option of avoiding calculations and seeing previously-calculated results instead. Use this feature with care: previously calculated results may not reflect the latest edits to data.
- References Improved. References can now be imported from Excel. Requires a currently active spreadsheet with one reference per row and minimally labeled "Year", "Author", "Title" and "Publisher" columns. Each record must be unique with respect to its year and author.
- Installation Software Changed. Recent changes to LEAP caused problems when installing on older Windows 98 PCs, which in turn have prompted us to adopt a newer version of the InstallShield installation program. The latest version uses the standard Windows Installer, which should make installations more reliable. It also checks the target PC to ensure it has the required operating system (Windows 98 or later) and RAM before installation begins, and can also be used to repair LEAP installations.
- New Result Variable: Transformation/Unmet Requirements. Shows any requirements that remain unmet after the dispatch of a module. Note that subsequently dispatched modules or, ultimately, imports may meet these unmet requirements.
- Energy Balance Improved to show any fuel requirements that remain unmet after dispatch of all Transformation modules and after resource dispatch. This information appears as an extra row at the bottom of the balance table.
- Handling of Unmet Requirements Improved: Previously any unmet requirements for secondary fuels after the dispatch of all modules could be simulated in only two ways: either (1) assuming that imports were available to meet those requirements, or (2) by adding those unmet requirements to demand and iterating the Transformation calculations to simulate systems with energy flow feedbacks. This has now been changed to allow for an additional case (3) in which the requirements are simply left unmet. Use the Resource Properties screen to set the properties of each resource to one of these three settings.
- Improvements to Summary Reports. Now handles reports in which all units are the same more elegantly and allows absolute as well as indexed charts.
- Useful Energy Analysis for Combined Heat and Power (CHP). When conducting a useful energy demand analysis, technologies can now optionally be set to produce a co-product. For example, a demand for heat in buildings could be met through a combination of conventional furnaces as well as combined heat and power units that consume natural gas at one efficiency, while producing electricity at another efficiency. Use the Demand Branch Properties screen to specify the co-product. Note that only technologies created under a useful aggregate energy branch can have co-products. Reporting has also been improved to let users examine both net final energy demand (consumption minus co-production), gross final energy demand (final consumption only), and co-production only.
- Internet Updates Improved: The Internet-based update feature has been completely revamped to improve its reliability and to reduce the size and time of downloads. Updates have been split into separate files that allow typical program update downloads to be reduced from about 5.3 MB to about 1.4 MB. In situations where only help files or data files need to be updated, the download size will be even smaller. Also, by splitting the update into separate files the new system should work better with frequently-dropped connections, all of which should make updating LEAP easier for those with slower modem-based Internet connections. In addition the updated files are now loaded on a faster server for improved speed. For those with an always-on Internet connection, LEAP will automatically check for and notify users of available updates periodically.
- Note: because of the changes in the Update system, when first updating to version 2003.016 the download will be approximately 8 MB in size. Subsequent updates will be as small as 1.4 MB. If you do not wish to download such a large file, you can order a copy of LEAP on CD-ROM from the LEAP web site for a nominal charge.
- Improved Interface: The interface has been updated to support Windows XP user interface conventions. This does not affect users of Windows 2000 and earlier operating systems. A new menu option (View: Themes) lets you switch between standard Windows XP and Office XP-style menus.
- Improved Environmental Modeling Capabilities: Emission factors can now be entered as expressions just like other variables. This has several key advantages:
(i.e. change over time and vary by scenario).
- Emissions factors can now be dynamic
- New Transport Modeling Capabilities:
A new "Analysis" menu has been added to reflect the new Excel Import and Excel Export functions, and to give easier access to the important Expression Builder and Time-Series Wizard options. These two options are now also accessible as buttons on Analysis View toolbar.
- Menu Change:
Note: The above list has been edited to reduce its length, by removing older bug fixes and minor changes. All changes are cumulative. Not all versions were widely distributed.