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- README file for BLCC disk #1 September 10, 1991
-
- The BLCC program, supporting files, and demonstration files are on BLCC
- disk #1. The BLCC "User's Guide and Reference Manual" is located on BLCC
- disk #2 in file BLCC.DOC. (All of these files fit on a single DD 3.5 inch
- diskette.)
-
- It is suggested that the BLCC manual be printed and used as the primary
- reference when running BLCC. All of the input variables required to run
- BLCC are defined in the user's guide. (For optimal printing of the guide,
- retrieve the BLCC.DOC file as a DOS text in your word processor. Format the
- text using 12 characters per inch (pitch), one inch left and right
- margins, and 58 lines of text per page.)
-
- BLCC disk #2 also contains the DISCOUNT 3.1 program for computing discount
- factors and present values, future values, and annual values of projected
- cash flows. DISCOUNT is a stand-alone program, used for simple discounting
- problems that do not need the comprehensive summation and reporting capabi-
- lities provided by BLCC.
-
- BLCC runs faster from a hard disk because it accesses a number of disk files
- to format screens (files *.SCR) and reports (files *.FLD) while running.
- To copy BLCC to a hard disk, make a subdirectory called BLCC and copy all of
- the files on both disks to that subdirectory.
-
- Note: BLCC 3.1 can be run directly from disk #1. If you choose to run it
- from disk #1, make a copy of that disk and save the original. If you are
- going to run BLCC from a high-density disk drive (1.2 MB), you should copy
- it to a disk formatted for that application. BLCC reads and writes to the
- disk. Some high-density disk drives will wipe out a double-density disk
- (360KB) during the write process. (The DISCOUNT program on disk #2 does not
- write to the disk.)
-
- The files of projected energy price escalation rates from the U.S. Department
- of Energy (files ENCOST92.SEQ and ENCOST92.RAN) and the discount rate for
- Federal energy conservation projects are updated on October 1 each year. At
- the same time changes may be included in the BLCC program to improve its
- performance and fix problems discovered since the last release. The updated
- program and files can be ordered from the organizations listed in the BLCC
- user's guide, page vi.
-
- 2-14-91
- BLCC version 3.01 corrects several bugs in version 3.0:
- o lowest LCC among several alternatives is now correctly flagged.
- o warning removed that UPW is not consistent when different energy use
- indexes are specified for different alternatives.
- o in comparative analysis, resale value is now displayed properly.
-
- 7-15-91
- BLCC version 3.02 corrects two more problems:
- o cash flow analysis caused register overflow in some owner-occuppied
- LCC problems.
- o undesirable looping in edit mode when only one component was specified
- in a multi-component mode.
-
- In addition, version 3.02 allows up to 100 LCC files to be tagged for lowest
- LCC comparison. (The previous maximum was 9.) If more than 9 LCC files are
- tagged, the lowest LCC report cannot be displayed to the screen; use the
- printer or disk file option. The user should be aware that only 200 LCC
- files can be displayed for tagging at one time. (The previous maximum was
- 100.) If more than 200 LCC files are in the directory, files above
- 200 are inaccessable by BLCC. If you are running large numbers of analyses
- you will need to manage your files carefully, deleting old files or moving
- them to another subdirectory. (Use the setup command in the main menu to
- designate the current subdirectory for saving and retrieving data files.)
-
- 7-26-91
- BLCC version 3.03 corrects several problems in the cash flow analysis report.
- (No problem or changes in the LCC computations):
- o annually and non-annually recurring costs in multiple component
- analysis were shown incorrectly.
- o remaining loan pricipal at end of study period (if any) was incorrect.
- o tax analysis of unamortized points (if any) was incorrect.
- "Remaining value at end of study period" is now called "Residual value of
- capital assets" since the life of some assets or replacements may expire
- before the end of the study period.
-
- 8-10-91
- BLCC version 3.1 includes DOE energy price escalation rates for use in FY92
- (ENCOST92.SEQ and ENCOST92.RAN). NS, SIR and AIRR for FEMP LCC analysis
- include capital replacements and resale value in investment category.
- Default FEMP discount rate changed to 4.6% from 4.7% for FY92. Resale value
- and capital gains for replacements were changed to make them consistent
- with end-of-year investment. (In early versions of FBLCC/NBSLCC, replacements
- were assumed to occur at beginning of year; when they were changed to end of
- year, the resale value and cap gains calculations were not adjusted
- accordingly.) Property tax computation for replacements were also changed to
- make them consistent with end of year replacement: property tax now assumed to
- be paid at beginning of year immediately following replacement, with no
- depreciation at the time of the first assessment.
-
-