An energy audit is a systematic evaluation of building energy consumption patterns, identifying inefficiencies and opportunities for improvement through equipment upgrades and operational changes. Professional audits use diagnostic testing, equipment performance analysis, and utility bill review to quantify savings potential. Energy audits typically cost $300 to $800 and identify improvements with 2 to 5 year payback periods.
Assessment Methods
Auditors perform blower door testing to measure air leakage rates, thermal imaging to detect insulation defects, and combustion analysis on heating equipment. Utility bill analysis reveals seasonal patterns and baseline consumption. They evaluate thermostat programming, equipment age and maintenance history, and envelope condition to develop comprehensive improvement recommendations.
Results and Recommendations
Audit reports prioritize improvements by cost-effectiveness, typically recommending weatherization and air sealing first, followed by insulation upgrades and equipment replacement. High-quality audits estimate energy savings ranging from 10 to 40 percent annually. Many utility companies offer rebates covering 50 to 80 percent of audit costs, making professional evaluation financially attractive for homeowners.