PermaFrost Test: Rooftop AC Unit - June 2003

NOTE: The following is the executive summary of a 3-page report.

Evaluation of Effects of PermaFrost Treatment for Rooftop AC Units Energy Consumption at Bank of America in Austin, Texas

Prepared by Tony Bloom, PE - June 2003

INTRODUCTION

This test monitored power usage in order to determine the kilowatt-hour consumption of RTU-1 (Roof Top Unit) and RTU-2 air conditioning systems at the Bank of America branch at Loop 360 and US 183 in Austin Texas.

METHODOLOGY

Energy consumption of both units was monitored simultaneously for one week before and one week after treatment with PermaFrost. The first and last days of monitoring were partial days and/or included the period while PermaFrost was being installed. Therefore, these days were not included in the report.

OBSERVATIONS

• Total energy consumption before permafrost: 654 KWH
• Total energy consumption after permafrost: 524 KWH
• The net reduction in energy consumption was 20% for the period.
• The weather conditions during the monitoring period was variable, however, the before and after weather conditions were similar.