Be Green™ Report
Scientific testing shows that when PermaFrost™ is installed in HVAC, the reduction of kilowatts used for the HVAC system ranges from 18 to 22.5%. This normally translates to 5 to 15% of the total power bill depending on geographical location, temperature, humidity and heat load of the building.
When installed across a large organization with many buildings you will experience these savings for all locations. In some buildings it will be very obvious that you are saving money. The power bill may go down and fewer kilowatts may be used. In other buildings your charges may increase due to the rising costs associated with providing electricity. In these situations savings are attributed to reduced kilowatt demand which combats increasing costs.
Other scenarios also present problems for determining savings. Temperature and humidity vary with weather conditions. If the temperature stays the same or declines, but humidity goes up, the equipment will use significantly more kilowatts.
Additionally, improper HVAC charge (refrigerant pressure levels), faulty vents, door & window seals and dirty filters are additional variables that can significantly effect power consumption.
Foot traffic and occupancy are also considerations. When more people use the building, the door is opened more, allowing conditioned air to escape and the heat to rush in. If the employees lower the thermostat, the HVAC system works harder increasing kilowatt consumption of the building. To account for the savings, it is important to understand that you just can’t look at the dollar amount on your bill.
In real life, buildings are not a controlled environment and it cannot be measured scientifically without huge expense. However, we can look at averages and trends to help identify savings and issues.
Scientifically, the facts show an 18 - 22.5% improvement in HVAC units after PermaFrost™ is installed.
Analysis reveals interesting findings for the organization that will help determine problem areas in your buildings.
An Actual Case Study
Pre & Post PermaFrost™
Analysis of 110 locations containing calculated heat load for the years before and after installation of PermaFrost™. Heat load was calculated with the most accurate weather data available per location using temperature, humidity and the psychometric chart, which is a standard tool used in determining the load on a HVAC system. Once heat load is established, we compare operation and kilowatt consumption across multiple years to obtain a better picture of the energy required to operate the building under different weather conditions.
This comparison using heat load allows us to trend what a given buildings kilowatt consumption looks like over time.
A total of 2,828,602 kWh were saved in 2007 with estimated savings of $325,000. There was an average increase in heat load for the post treatment year of 4.74 units (gr/lb).
The name of this customer has been withheld for confidentiality purposes. This is an actual case study.
The left of the x axis shows buildings that consumed less power. The buildings right of the x axis consumed more power; however, they are still using less power because they were treated with PermaFrost™.
This report shows 23 buildings that need to be investigated. There may be HVAC equipment problems, clogged filters, open windows or added occupancy. These buildings were looked at in more detail to determine why they were using more electricity and corrective action was taken.
As you can see the trend across the organization is an average kilowatt building savings of 7.9% across the entire 110 locations (including the 23 buildings that are suspect).
PermaFrost™ does not cause increased kilowatt consumption.
When removing the 23 buildings in question there is an average savings of 11.6%. We know that controlled laboratory testing shows between 5 to 15% on total power savings. These trends are in line with what we would expect to see. Out of 110 buildings, 87 experienced savings and 73 buildings experienced 5% or greater.
