Even at a time when building owners are increasingly concerned about their buildings’ operating cost and effect on the environment, exit signs are one of the most commonly overlooked elements that impact operating cost and carbon pollution. Although operating only a few inefficient signs won’t do significant financial or environmental damage, operating numerous signs, as most commercial and residential R1 buildings do, can make a building’s annual electricity bill and carbon footprint unreasonably big. To solve these problems, savvy building owners replace old exit signs with photoluminescent signage to make their buildings more economical and eco friendly.
Photoluminescent Signage Compared to Other Forms of Exit Signage
Although electricity-free and maintenance-free photoluminescent signs are the most economical and eco friendly exit signage, they aren’t the only type of signage that qualifies as “energy efficient”. That label also belongs to compact fluorescent and LED signs, which are commonly recommended by energy efficiency providers as replacements for incandescent signs, the most expensive and least eco friendly signs on the market. Even so, compact fluorescent and LED signage doesn’t compare to photoluminescent signage in terms of cost. A single compact fluorescent sign costs $894 to operate and maintain over a ten-year period; a LED sign costs $370; and a luminescent signs costs only its purchase price, roughly $110.
Luminescent technology is powered by principle of photoluminescence, in which an object absorbs photons from its surrounding environment and re-radiates them, creating a bright glowing effect for up to 96 hours in total darkness. As an example of how much you can save with luminescent exit signs, energy efficiency research shows that replacing 100 incandescent signs with photoluminescent signs can save companies almost $3,700 in energy cost alone.