LEVEL 2 ENERGY AUDIT

• Audit Title

• Document No.

• Client / Site

• Conducted on

  Date

• Prepared by

• Location
  Address

• Personnel

Lighting

• How does the light level in each area compare with minimum light levels for areas that function according to AS 1680. Can light levels be reduced?

  Yes

  No

  N/A

• Housekeeping observations - are lights left on in unused areas

  Yes

  No

  N/A

• How and When are lights switched on and off each day? <br>Are lights left on after hours?

  Yes

  No

  N/A

• Could cleaning and routine maintenance be re scheduled to daylight hours to prevent excess use of lights (and HVAC) after hours?

  Yes

  No

  N/A

• Are automatic on / off controls present or required? <br>If present check that it is a manual on system with off times programmed correctly!

  Yes

  No

  N/A

• Can automatic controls be permanently over ridden by mistake?

  Yes

  No

  N/A

• Do after hours switches turn lights off as well as on?<br>(Are more lights on at one time during off-peak periods than need to be?)

  Yes

  No

  N/A

• Are switching circuits clear to users?

  Yes

  No

  N/A

• Are there de-lampung opportunities?

  Yes

  No

  N/A

• Are diffusers required / fitted and of an efficient type? <br>Are diffusers and fittings clean?

  Yes

  No

  N/A

• Are surface finishes light coloured?

  Yes

  No

  N/A

• Can lamps be replaced with more efficient options?

  Yes

  No

  N/A

• Can light fixtures be replaced with more efficient options?

  Yes

  No

  N/A

• New or retrofitted fittings with maximum light output?

  Yes

  No

  N/A

• Are lights on when sufficient daylight is present?

  Yes

  No

  N/A

• Is there a need for daylight controls or user education ( eg Stickers)?

  Yes

  No

  N/A

• Is there a need for controls in specific areas using occupancy detectors or time delay switches in rooms not in constant use?

  Yes

  No

  N/A

• Are all electrical connections in the panel and wiring system tight?

  Yes

  No

  N/A

• Are security lights fitted with photoelectric cells and or possibly occupancy detectors?

  Yes

  No

  N/A

• Could more efficient security lights be fitted?

  Yes

  No

  N/A

• Can fluorescents be replaced with high intensity discharge lights?

  Yes

  No

  N/A

• What type of ballast do the lamps use and what are the replacement options?

  Yes

  No

  N/A

Heating, Ventilation and Air Conditioning

• Is it needed in all areas it is used? Can HVAC services be removed from the store rooms, meeting rooms, in-used spaces and entrances? Can natural ventilation be used?l

  Yes

  No

  N/A

• Check on / off programming appropriate to building use. Are holidays programmed correctly? Does cooling or heating occur at anytime when the buildings are not in use? Can automatic controls be manually permanently over-ridden?

  Yes

  No

  N/A

• Are there any heaters which are not thermostatically controlled? Are radiators used everywhere?

  Yes

  No

  N/A

• Is there potential to better use the suns heat in winter? Are areas receiving heat from the sun separately controlled?

  Yes

  No

  N/A

• Are components appropriately sized? Is a low load chiller present for after hours building use? Should room air conditioners or split systems be installed in small areas with frequent after hours use?

  Yes

  No

  N/A

• How old is the HVAC plant? What is the expected economic life?

  Yes

  No

  N/A

• Is it the most cost effective HVAC solution for this application considering whole of life costs?

  Yes

  No

  N/A

• Is the control system as simple as possible, consistent with achieving reasonable economy?

  Yes

  No

  N/A

• Would sub metering of air conditioning power use be appropriate?

  Yes

  No

  N/A

• What were the room temperatures at the time of the visit? Were these appropriate? Do occupants report that they are comfortable all year round? Are jumpers and jackets kept close at hand?

  Yes

  No

  N/A

• Are the thermostat set points appropriate? Are thermostats located away from heating or cooling devices? Can they be raised in summer or lowered in winter to save energy? Can the range of acceptable temperatures be expanded? Can temperature controls in corridors, lobbies, public spaces, and other areas be different according to the requirements for different spaces at different times of the day?

  Yes

  No

  N/A

• Can the chilled water or evaporator temperature controls be increased in cooler weather?

  Yes

  No

  N/A

• Can the heat load be reduced by reducing the solar heat load or by turning off equipment or activating energy star features on computers? Can plastic strip curtains, automatic doors, air curtains or weather screens in front of doors be used to reduce heat load?

  Yes

  No

  N/A

• Can heat loss / gain be reduced by insulating ducts, pipes, walls or roof spaces; painting outside surfaces light colours; tinting windows or closing drapes at certain times; and / or installing building shading devices ( incl trees)?

  Yes

  No

  N/A

• Is a good quality vapor barrier apparent? Are appropriate wall and roof insulation levels used? Could external shading be improved?

  Yes

  No

  N/A

• Are ceiling heights excessive? Could a false ceiling be installed?

  Yes

  No

  N/A

• Are outside doors fitted with automatic door closers?

  Yes

  No

  N/A

• Would ventilation of attics , equipment rooms and roof spaces be cost effective?

  Yes

  No

  N/A

• Are high efficiency filters used and outdoor air volumes reduced appropriately?

  Yes

  No

  N/A

• Are outside air levels appropriately matched to the need for outside air at different times? Can carbon dioxide sensing or other methods be used to control outside air? Are processes that contaminate the air isolated so that air changes for other areas are not excessive?

  Yes

  No

  N/A

• Is there excessive heat build up in the air plenums due to machinery or solar heat loads?

  Yes

  No

  N/A

• Is an economy cycle present / appropriate?

  Yes

  No

  N/A

• Can evaporative cooling be used either as the only source of cooling or to pre cool outside air for a refrigerative system?

  Yes

  No

  N/A

• Are zones appropriate for the buildings (during business hours and after hours)?

  Yes

  No

  N/A

• Is the system balanced adequately?

  Yes

  No

  N/A

• Is there any reheating of air present that could be avoided?

  Yes

  No

  N/A

• Is it possible that heating and cooing functions can operate at the same time or any other sequence overlapping occur?

  Yes

  No

  N/A

• Are humidity controls present that can be avoided, relaxed or accomplished more efficiently?

  Yes

  No

  N/A

• Is there a time delay on after hours air conditioning controls? What is the time delay period? Can this be shortened? Can after hours air conditioning button be used to manually turn equipment off? Are users aware of this feature? Can labeling be improved?

  Yes

  No

  N/A

• Can access to after hour air conditioning be controlled by building manager and users charged directly for after hours air conditioning use?

  Yes

  No

  N/A

• Are there opportunities for heat recovery( eg. Run around coils)?

  Yes

  No

  N/A

• Are there opportunities for variable speed drives?

  Yes

  No

  N/A

• Are there opportunities for electronic expansion valves?

  Yes

  No

  N/A

• When were air conditioners last maintained / how often are they maintained? Can maintenance procedures be improved?

  Yes

  No

  N/A

• Are dampers well maintained / operating correctly?

  Yes

  No

  N/A

• Are filters, fins and heat exchanger coils cleaned?

  Yes

  No

  N/A

• Is any air leaking from air duct?

  Yes

  No

  N/A

• Optimised stop/ start or other start up later / switch off earlier operating time minimization strategy. Is any form of flushing / night purge used? Can heaters or chillers be switched off early as thermal inertia of building maintains conditions for some time?

  Yes

  No

  N/A

• Is air leaking from around doors and windows?

  Yes

  No

  N/A

• Can maximum demand be controlled to save operating costs?

  Yes

  No

  N/A

• Are uncontrolled room air conditioners present? Should they be interlocked with central system so that only one or the other can run at a time? Should time delay switches, time switches or some other controls be installed?

  Yes

  No

  N/A

• If supplementary air conditioning is required for meeting rooms, is it switched using time delay switches or equivalent? Could units with in built heat exchangers be cost effective?

  Yes

  No

  N/A

• Are room air conditioners with poor star ratings apparent?

  Yes

  No

  N/A

• Is thermal storage a cost effective option?

  Yes

  No

  N/A

• Control of outside air flow according to inlet air flows?

  Yes

  No

  N/A

Tariffs & Billing Issues

• Is load shifting, shedding or power factor correction feasible to reduce energy expenditure?

  Yes

  No

  N/A

Domestic Hot Water

• Are all hot water heaters needed?

  Yes

  No

  N/A

• Are any oversized?

  Yes

  No

  N/A

• What hours do they run? What hours do they need to run? Can time switching be justified?

  Yes

  No

  N/A

• Are existing hot water units efficient? What are their likely economic lives? What should they be replaced with when they reach the end of their lives? Should they be closer to the usage points?

  Yes

  No

  N/A

• Are AAA rated shower heads and taps used?

  Yes

  No

  N/A

• Are flow restricting valves used on taps?

  Yes

  No

  N/A

• Is there any leakage of hot water ( eg. Taps, pipes, or valves)?

  Yes

  No

  N/A

• Do circulating pumps operate when building is unoccupied?

  Yes

  No

  N/A

• Is water temperature unnecessarily above 60 - 65 degrees?

  Yes

  No

  N/A

• Are pipes insulated (min.10mm) between hot water heater and taps?

  Yes

  No

  N/A

• Should the hot water tank be insulated / more insulated?

  Yes

  No

  N/A

• Is heat reclamation from other equipment on site a possible source of water heating?

  Yes

  No

  N/A

Water Supply

• Can water use for landscaping be reduced?

  Yes

  No

  N/A

• Are bore operating times appropriate?

  Yes

  No

  N/A

• Is there an opportunity for using solar or other alternative energy operated pumping systems?

  Yes

  No

  N/A

Motors

• Are they all needed?

  Yes

  No

  N/A

• Can loads be reduced?

  Yes

  No

  N/A

• Are they sized appropriately?

  Yes

  No

  N/A

• Can the run times be controlled / reduced?

  Yes

  No

  N/A

• Are variable speed drives used where applicable?

  Yes

  No

  N/A

• Could higher efficiency motors be used?

  Yes

  No

  N/A

Office Equipment, Hot Water Boilers and Water Chillers

• Is each item needed?

  Yes

  No

  N/A

• Are items turned off after hours? If not, should they be timed off?

  Yes

  No

  N/A

• Do computers have their energy star features activated or are monitors turned off during periods of no use?

  Yes

  No

  N/A