Commercial Energy Audit [LEVEL I – II]

What:

A commercial energy audit is the process of inspecting all types and costs associated with a building’s energy usage and consequently identifying opportunities to reduce the overall consumption of the building. With an on-site inspection that evaluates all aspects of the building including:

  1. Lighting,
  2. Heating, air conditioning and ventilation equipment
  3. HVAC controls, and
  4. Any other energy consuming equipment

At the completion of the on-site assessment, a detailed report is generated that explains and prioritizes energy conservation measures (ECMs) with quantifiable cost savings analysis and return on investment for each measure/recommendation.

Why:

Commercial energy audit provides customers with a strategic roadmap to minimize operating expenses and a plan to reduce the overall energy costs of a building by 10-60% and in some cases up to 90% reduction.

Our energy audits as well as proven optimization methods deliver an overall reduced carbon footprint resulting in tangible and direct financial savings. While the energy savings potential vary, our process can:

  • Improve financial performance by reducing operating expenses (OpEx)
  • Increase property value and extend the life of a facility
  • Increase building efficiency through system optimization
  • Gain marketplace competitive advantage through recognition programs, such as LEED certification and many other DOE programs.
  • Improve your company’s image by being sustainable and “greening up”
  • Reduce your company’s environmental impact

Process:

The energy audit process is customized for each property. Impact Energy Consulting provides a tailored program based on your goals and needs. We base our Energy Audit program on The American Society of Heating, Refrigerating and Air Conditioning Engineers’ (ASHRAE) Procedures for Commercial Building Energy Audits. ASHRAE’s standards are considered the benchmark for building energy codes.

Levels Of Commercial Energy Audits

Various degrees of energy analysis can be performed on any given building. Determining major energy-savings improvements require deeper analysis than simply comparing the level of efficiency of a building relative to others. As a result, ASHRAE organized levels of analyses into the categories below.

Level I

The preliminary energy audit is the most basic energy audit and involves an analysis of historic energy use and costs. Energy use is typically benchmarked or compared against similar buildings in the same category. The engineering study and analysis of 1-3 years of energy usage are likely to produce significant energy savings based on:

  • Building’s gross square footage
  • 1-3 years of energy usage, and
  • Building’s type of use
ASHRAE Level 1  Audit focuses on low-cost/no-cost energy conservation measures, and provides a list of higher cost energy saving suggestions.

Level II

ASHRAE level II starts with findings from level I audit and examines the building energy systems in details in order to define a number of potential Energy Efficiency improvements. This includes:

  • Building Envelope
  • HVAC
  • Lighting
  • Domestic Water heater
  • Plug loads, and
  • Process use, etc..
The audit will include study will the assessment of lighting, indoor air quality (IAQ), temperature, ventilation, humidity, and many other findings that could impact the energy performance and the comfort of the occupants. The audit report will outline each energy conservation measure and detail its savings, cost, and time for return on investment. In addition, ASHRAE Level 2 audits will highlight any changes necessary to operations and maintenance procedures.

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