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energy costs
2015 was the hottest year on record so far, so without reading your bill we know the result, your energy bills were higher than before if you used air conditioning, because air conditioning is the largest portion of energy usage … Continue reading
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energy audit: inefficiency
by John A. Herbert Part of the energy audit process should be to review the condition of the plant, and equipment, generally if problems are discovered these can be categorised as deferred maintenance. Here an example, an 800 mm axial fan, … Continue reading
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Tagged energy audit, John A. Herbert
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What is the condition of your AHU?
by John A. Herbert The above pictured AHU cooling coil was ‘maintained’ by the term Air conditioning contractor. However, during our energy audit we inspected the AHU, dropped the air filters and found that the cooling coil was plugged, approx. … Continue reading
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Tagged air conditioning, blocked cooling coil, condition survey
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Anatomy of the Energy Audit
by John A. Herbert An energy audit is much like an annual financial review but instead of profit and loss, the data and information is based on historical energy usage, the energy audit deliverable is the energyLAB energy audit report, … Continue reading
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Tagged energy auditing, every watt counts, Success Story
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Government Energy Audit EMSD
by John A. Herbert, REA The Hong Kong Government enacted the BEEO in order to regulate the energy efficiency of key building services installations inside prescribed buildings, building owners are required to hire Registered Energy Assessor to undertake energy audits, … Continue reading
Posted in energy audit, energy news
Tagged EMSD, John A. Herbert, REA
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Is this what your AHU looks like?
The AHU pictured above is failing to deliver adequate service, We found the entire surface of the unit and frame is covered in condensate, forget about the mess, it is expensive wasting energy 18 hours per day instead of cooling … Continue reading
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Tagged energy audit findings, Hong Kong, John A. Herbert
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clean labels and motors
Buy the most efficient motor available, and keep it clean. Electric motors account for nearly sixty percent (60%) of the global electricity consumption! Comparing the total life operating cost with the first cost is instructive. Typically the CapEx (capital cost) … Continue reading
Posted in energy audit, energy consultant, energy efficiency
Tagged energy audit, energy efficiency projects, John Herbert
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percentages beware: we do math
Recently I was talking to a colleague about the pervasive use of the “percentage”. You will have seen the advertising offering up to 30% energy savings , and no doubt you will have seen NGO’s giving awards for 25% percent … Continue reading
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