ENERGY AUDITORS performs comprehensive, scientific, computer-modeled HOME ENERGY AUDITS to the technical standards of the Building Performance Institute. Testing is performed to ensure the safety of the occupants, to determine adequate air infiltration rate and perform a complete problem diagnosis. All data relevant to energy use in the home is gathered. Water usage is measured. All appliances are evaluated, and utility costs are reviewed during the onsite visit. Then we return to our office with the data, perform the necessary calculations and computer modeling, analyze all of the issues, and generate the audit report, along with an analysis report for each recommended improvement. The report includes estimated costs to make the improvements, estimated cost savings, and the payback period to break even on the investment. We also generate a report of potential water savings, in both gallons and dollars. Some of the tools and equipment we utilize in performing your energy efficiency audit are a blower door, duct blower, differential pressure manometer, thermal imager, smoke generator, infrared digital thermometer, combustion analyzer, carbon monoxide meter, hygrometer and moisture meter.
HOW LONG DOES AN ENERGY AUDIT TAKE? Typically, a full diagnostic home energy audit takes about 3 to 6 hours on site to perform all of the required testing, diagnostics and measurements needed to model the home energy use. Larger, more difficult, or unusual homes will take longer. Analysis of the data, computer modeling and report generation typically takes several additional hours at our office.
WHAT HAPPENS DURING A HOME ENERGY AUDIT? First, the customer is interviewed to gather general data about the home, and any issues they may have with energy costs, comfort, drafts, moisture, or other issues. Next, combustion safety testing is performed if there are combustion devices in the home, to ensure that the devices operate properly, and any gases are safely removed from the home. Then the air infiltration rate is measured with a blower door device, and measurements of pressure differences are taken at various zones of the home to help identify problem areas. Infrared thermal scanning is a standard inclusion in all of our audits, to help determine the presence and quality of insulation in the exterior surfaces, and to help identify areas of significant air infiltration. All accessible areas outside the conditioned spaces (attics, basements, crawlspaces, etc.) are inspected for energy problems, ventilation, insulation levels and quality of insulation installation. Windows and doors are evaluated and measured. The exterior is measured, and inspected for structural and energy issues, and surface water management is evaluated. Water flow is measured at kitchen and bath fixtures. Appliances are generally evaluated, and utility bill data is collected for inclusion in the computer modeling.
WHAT HAPPENS NEXT? All data gathered is analyzed, the area and volume of the home is calculated, and all data is entered into the computer modeling system. Proposed improvement data is entered into the computer system for calculation of energy and cost savings, including estimated payback period to break even on the investment. Reports are generated showing the existing and proposed energy usage by category, and recommendations for improvements. The reports are then delivered to the customer, with an invitation to contact us to clarify or further discuss any questions or issues they may have.
If the customer desires, we will consult with their contractor to clarify our recommendations. We will provide onsite consulting if desired; there is a fee for this service.