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Software

FRESA 2.5.5 Software (self-extracting executable for PCs only)
Important Notice to Users

FRESA Manual (PDF 1.8 MB, 63 pp)
Updated August 2000

The Federal Renewable Energy Screening Assistant (FRESA) Version 2.5 allows energy auditors in the DOE SAVEnergy Program to quickly evaluate renewable energy opportunities and energy systems options for possible inclusion in a facility's energy program. The program is a supplement to the energy and water conservation audits that will be completed for all Federal buildings and will flag renewable energy opportunities by facilitating the evaluation and ranking process.

FRESA processes building and facility data to indicate opportunities for renewable energy applications in Federal facilities and buildings. The purpose is to focus feasibility study efforts on those applications most likely to prove cost effective. FRESA provides uniform assumptions in the form of database weather and technology/energy cost parameters. FRESA generates reports consistent with the DOE/FEMP SAVEnergy Audit format.

This version of FRESA can screen facilities for the following renewable energy systems:

Daylighting Controls
Infiltration Control
Daylighting Apertures
Active Solar Cooling
Multiple Glazings
Window Shading Alternatives
Utilization of Wind Energy
Utilization of Water Power
Solar Thermal Electric
    Solar Swimming Pools
Ground Coupled Heat Pumps
Active Solar Space Heating
Solar Hot Water
Photovoltaic Applications
Solar Ventilation Reheat
Conversion to Biomass
Conversion to Refuse

NEW! FRESA User List
For e-mail information and updates on the newest version of FRESA, the Federal Renewable Energy Screening Assistant software tool, join the FRESA User List. Just send an e-mail message with "Subscribe FRESA user list" in the "Subject" line to alicen_kandt@nrel.gov (to unsubscribe, type "unsubscribe FRESA user list" in the subject line of your message).

Important Notice to Users
Significant changes have been made to the programming core of FRESA in version 2.5. Please note that FRESA version 2.5 cannot import files from previous versions. You will need to re-enter the information into FRESA 2.5 as if creating a new facility or building. If you have been using a previous version of FRESA, it is recommended that you keep that version installed on your computer so that you can view and analyze older files as needed.