Available to business accounts at Access Energy Cooperative is a program to offer energy audits to help members find ways to conserve energy and also to become more energy efficient.

Please contact our marketing department if you wish to schedule an energy audit.

The Audit Procedure is generally as follows:

  1. Preliminary interview with key member personnel to identify projects and areas of member interest.
  2. Walk through of the facility to look at equipment, processes and identify Energy Management Opportunities (EMO).
  3. Post survey interview to discuss EMO’s identified which will be evaluated in the report and report delivery issues.

The following survey procedure, although not applicable to all items, should be used as a general guideline for data gathering during the survey: The object is to identify Energy Management Opportunities and concentrate the time and effort available in these specific areas.

  1. Complete a Utility Cost and Consumption Analysis. Calculate Greenhouse Gas Emissions and Carbon Footprint of the facility for electricity and natural gas (if available).
  2. Evaluate existing energy management procedures. Identify opportunities for formalizing an energy policy, increasing energy awareness, installing an on-site energy team, improving monitoring & targeting and benchmarking energy usage.
  3. Determine the building use, equipment operating schedule(s), number of occupants, and occupancy schedules. Document schedule and occupant variations during typical weekdays, weekend days, and for various periods of the year.
  4. Conduct an on-site inspection of the facility. Walk through the building, examining all major energy using systems including electrical systems, lighting, auxiliary and process systems, envelope, HVAC, service water heating, and controls. Record the following information for major energy-using equipment: age, condition, operating problems, environmental problems, operating schedules and set points, and identity and responsibilities of maintenance contractors

Typical data to be obtained for each building system

Electrical Systems
Electric motors of major equipment: location, service, age, horsepower, RPM, enclosure type, efficiency rating, connected load, annual operating hours, and maintenance schedule.

Note if the motor is controlled by a variable speed drive, inlet vanes etc.

Lighting
  1. Interior lighting: number and type of fixtures in each space. Identify the ballast and lamp type used in each fixture, lighting fixture controls, operating schedules and age of equipment.
  2. Exterior lighting: number and type of fixtures. Identify the ballast and lamp type used in each fixture, lighting fixture controls, and operating schedules.
Auxiliary and Process Systems
  1. Examples: manufacturing equipment, process ovens, compressed air equipment, vacuum systems, process heating and cooling, etc.
  2. Collect pertinent nameplate data for major equipment, including location, manufacturer name, age, energy source, equipment rating or capacity, energy consumption, service, and maintenance schedule.
  3. Record the type of refrigerant used in refrigeration equipment. Also, note the size of refrigeration system compressors.
  4. Determine operating set points, annual number of operating hours, and other pertinent operating data.
Envelope
 Examine and document major building components, including the size and construction of walls, roofs, windows, and doors. Determine the age of various components.
Heating
  1. Description of space temperature controls and temperature set points (occupied and unoccupied).
  2. Furnaces: location of furnace, location of area served, floor area served, energy source, age, manufacturer name, rated heating output, efficiency rating, and description of the associated distribution system, controls, annual operating hours, and maintenance schedule.
  3. Boilers: location of boiler, location of area served, floor area served, energy source, age, manufacturer name, rated heating output, efficiency rating, description of the associated distribution system, controls, annual operating hours, and maintenance schedule.
  4. Piping: Look for leaks and uninsulated pipe. Note number and condition of steam traps, condensate receiver tanks and condensate pumps for steam systems.
  5. Pumps: location of pump, description of system served, age, manufacturer name, rated flow (GPM), motor size (HP) and motor efficiency rating, type of drive, description of the associated piping system (e.g. primary, secondary, variable flow), controls, annual operating hours, and maintenance schedule.
Cooling
  1. Description of space temperature controls and temperature set points (occupied and unoccupied)
  2. Chillers: location of chiller, location of area served, floor area served, energy source, age, manufacturer name, rated cooling capacity (sensible and latent), efficiency rating, refrigerant type, description of the associated distribution system, controls, annual operating hours. Record the chilled and condensed water supply temperature and reset schedules.
  3. Roof top air conditioning systems, heat pumps, split system air conditioners, PTAC units, and other cooling equipment: location of unit, location of area served, floor area served, age, manufacturer name, rated cooling capacity, efficiency rating, refrigerant type, type and rating of any space heating equipment, description of the associated distribution system, controls, and annual operating hours.
  4. Window air conditioners: location of unit, location of area served, floor area served, age, manufacturer name, rated cooling capacity, efficiency rating, refrigerant type, controls, and annual operating hours.
Ventiliation
  1. Fans and air handling units: location of unit, location of area served, floor area served, age, manufacturer name, rated air flow (CFM), motor size (HP) and motor efficiency rating, fan drive, description of the associated duct system (e.g. VAV, dual duct, exhaust duct with back draft damper, etc.), controls, and annual operating hours. Air handling units only: give space heating and/or cooling ratings, coil type (hot water, chilled water, refrigerant), amount of outside air, associated heating and cooling equipment, and controls.
  2. Duct work: Observe condition of duct work, insulation, and lining. Note uninsulated ducts in unconditioned spaces and significant duct leaks.
Service Water Heating
  1. Water heaters: location of water heater, description of area and equipment served, energy source, age, manufacturer name, rated recovery, efficiency rating, storage capacity, heating element ratings (electrical), controls, and water temperature set point.
  2. Piping: Look for leaks and uninsulated hot water pipe.
Controls
  1. Building automation systems (BAS): location of BAS, areas and equipment served by the BAS, number of points, age, manufacturer, BAS functions, and equipment/building operating schedules and set points.
  2. Controls: type of controls (pneumatic, DDC), age, condition, and maintenance schedule. If pneumatic controls are used, give the following information for the air compressor: age, manufacturer, motor rating (HP), motor efficiency, receiver capacity, air drier type and condition, and evidence of leaks (frequent compressor cycling).
  3. Thermostats: type, function, set points, equipment controlled, and areas served.

Develop Energy Conservation Measures

Based on interview, customer preference, and site observations, develop a list of potential energy conservation measures. Analyze the energy and dollar savings potential for each measure as follows:

  1. Calculate the Energy Savings and Carbon Reduction (CO2) of each conservation measure. Document the basis for the anticipated energy savings.
  2. Estimate the cost of implementing the energy conservation measures.
  3. Calculate the Simple Payback of each measure up to ten (10) years or life of the equipment.
  4. Investigate possible operations and maintenance procedures that would contribute to energy savings.
  5. Prepare a written report.