Lighting Upgrades

energylab lighting upgrades by design, John Herbert energy consultant

Improving the energy efficiency of lighting systems is a no brainer, the obvious gain is lower the lighting energy consumption. But in air conditioned areas the second benefit results from the lower heat output, because means reduced bills for the air conditioning too.

Let say your air conditioning system has a COP of 3, then reducing the lighting consumption by 1 kW also means lowering the load of the air conditioning system power consumption by approx. 0.333. So together, a lighting improvement will save 1.33 kW.

Concealed uplighting, as pictured above, is the ideal candidate for lighting upgrades, replacing those tired T8/T12 lamps with energy efficient T5 lamps today!

— John Herbert, REA, Energy Consultant

About John A. Herbert, REA, energy consultant, BEAM Pro

John is director of energyLAB energy consultants firm, he has with more than 30 years engineering experience gained across three continents. He is Registered Energy Assessor, a member of HKAEE. Read his blog at
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