Yes, REM works on both 32-bit and 64-bit machines.
You should contact whomever provided you with the REM/Rate™ Software. If you received the software directly from NORESCO, please send an email to [email protected] requesting your User ID and Password. Be sure to include your name, and the name of your organization.
Once we have received payment of the Annual License Fee, and a signed Software
License Agreement or Amendment (if appropriate), the expiration date will be advanced
one year on our web server. After we have updated our web server, re-registering
REM/Rate™ will advance the date of the installed version.
REM/Rate™ can be re-registered by selecting Web Services on the Tools Menu.
The new HERS® Council Rating Method uses the Modified End-Use Load Method. The loads are modified by applying a ratio of the efficiency in the building to the minimum efficiency specified by the HERS® Guidelines as a function of system type and fuel type. If two or more systems are present in a building, each portion of the load is applied to its own specific ratio. You can think of it as the same method, but having one end-use per fuel type. For example: if a user specifies a gas-fired air distribution system servicing 60% of the heating load and electric resistance for the remaining 40% of the heating load. Then 60% of the heating load is applied to the ratio of the specified gas AFUE to the HERS® Reference AFUE (78 AFUE), and the remaining 40% of the load is applied to the ratio of the efficiency of the specified electric resistance (100%) to the HERS® Reference efficiency (which is a HSPF of 6.8, as the HERS® Reference mandates a conversion to an air-source heat pump).
Wood systems are calculated as any other system. However, as the HERS®
Reference Guidelines do not directly specify reference efficiencies for wood systems,
REM/Rate™ uses the values from the 1992 - 1993 column of "Table 2.a:
Mechanical Equipment Rated Efficiency Values in the HERS® Guidelines for
Please note that although some of these systems are unlikely at best, they are legal inputs for REM/Rate™.
|System Type||System Efficiency||Distribution Efficiency|
|Air-Source Heat Pump||70%||80%|
|Ground Source Heat Pump||70%||80%|
Specify an improvement measure that has an existing condition of the fuel and system you
are currently using, and a proposed system and fuel to which you are switching. Make sure
you provide costs for both the pre- and post-fuels on the energy costs screen.
This process also works if you have multiple heating or cooling equipment systems specified.
Any basement which is not directly heated or cooled (and does not stay at the building's set points), should be entered as an unconditioned basement. REM/Rate™ does a complete energy balance on basement areas. If the basement is not directly heated, but does receive heat from duct losses and through uninsulated frame floors, do not enter the basement as conditioned. REM/Rate™ accounts for all of these losses.
These losses are actually attributed to the crawl space/unheated basement. The losses are dependent on the floor construction and the wall construction of the basement. Reporting the losses as either floor losses or wall losses would be misleading.
They would be the same IF the balance point of the building was exactly 65 degrees in the heating season and 74 degrees in the cooling season (not true of most buildings), if there were no solar gains, and if there were no other energy affects which were not directly related to 24UA DD calculation. No one has yet found the perfect normalized factor (a number which for a given building would not change from site to site).
The foundation wall with its total height, height above grade, depth below grade, and length fields describe the geometry of the wall, and nothing you enter in the library will change those values. The library only describes how much insulation is present, and where that insulation is.
If you have insulation which covers the entire interior of the foundation wall, from top to bottom, we suggest entering insulation top: "0 ft from the top of wall" to insulation bottom "0 ft from the bottom of wall", "above grade" and "below grade" options are available so you can create libraries which are height insensitive.
All entries pertain to the whole building. No entries pertain to a single unit. All
entries including, but not limited to, area of conditioned space, number of bedrooms,
wall areas, floor areas, window areas, number of lights and appliances, heating entries
and cooling system entries pertain to the whole building being analyzed.
The number of units changes the assumption for DHW, and lights and plug load usage, but otherwise has no effect on the calculations.
It's a matter of which mechanical library you use. If you use the Heat Pump Library, REM assumes you are installing a ducted central system. If you use the Space Heating Library, and select the "Air-source heat pump" type, REM will not assume that a duct system is needed, although you can assign a duct system to it.
For additional assistance go to http://support.remrate.com/ and enter your question or search the knowledge database for answers to your question(s). You may also join the REM Software discussion group on Google Groups™.
The ENERGY STAR® name and mark are registered trademarks owned by the U.S. Environmental Protection Agency (EPA).
LEED® is an acronym for Leadership in Energy and Environmental Design™. LEED® and its related logo, is a registered trademark owned by the U.S. Green Building Council® and is used with permission.
HERS® is an acronym for the Home Energy Rating System, a registered trademark of the Residential Energy Services Network.
RESNET® is an acronym for Residential Energy Services Network®, Copyright 2010 Home Energy Service Pro, LLC - All Rights Reserved.
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