10 Prof Ernst Uken.pdf - CPUT Active Web - Cape Peninsula ...
10 Prof Ernst Uken.pdf - CPUT Active Web - Cape Peninsula ...
10 Prof Ernst Uken.pdf - CPUT Active Web - Cape Peninsula ...
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DECISION MAKING FORLIGHTINGMust consider:• Light effectiveness/efficacy (lum per Watt, to maintainservice level) +• Average lifespan (eg decay factor) +• Cost per lamp, p,pus plus fitting +• Energy consumption in kWh.Only then can an informed decision be made !Energy savings are determined by M&V by measuring andverifying the impact a new installation has made,relative to a previously measured baseline, retaining theservice levell
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