Global power de­mands

DEMM Engineering & Manufacturing - - NEWS -

A fun­da­men­tal par­a­digm shift in light­ing tech­nolo­gies to­ward more ef­fi­cient lamps and bulbs will sig­nif­i­cantly re­duce global elec­tric­ity de­mand for gen­eral il­lu­mi­na­tion in the next few years, ac­cord­ing to IHS Tech­nol­ogy.

The en­ergy us­age of the in­stalled base of light­ing tech­nolo­gies for gen­eral il­lu­mi­na­tion will fall to a pro­jected 2.75 tril­lion kilo­watt-hours (kWh) by 2020, down a no­table 24 per­cent from 3.61 tril­lion kWh last year. Over­all, the in­stalled base for gen­eral light­ing – which cov­ers homes, businesses and street lamps but not ar­chi­tec­tural or the­atri­cal light­ing will ac­count for 10.3 per­cent of the net elec­tric­ity gen­er­ated in 2020, down from 16.4 per­cent in 2013.

Elec­tric­ity us­age will de­cline even as the num­ber of lamps in­creases.

“The fall in elec­tric­ity con­sumed by light­ing is be­ing driven by the sys­tem­atic ban of in­ef­fi­cient—mainly in­can­des­cent— lamps and bulbs in coun­tries across the world,” said Wil­liam Rhodes, light­ing re­search man­ager for IHS. “As these bans start to kick in, con­sumers and busi­ness own­ers will be re­plac­ing their lamps with more en­ergy-ef­fi­cient tech­nolo­gies, such as light-emit­ting diode (LED) al­ter­na­tives.”

Even so, con­sumers are not cur­rently flock­ing to LED in great num­bers be­cause of the rel­a­tively high pric­ing in­volved, Rhodes noted.

As pric­ing falls for LED lamps and bulbs to­ward the end of this decade, con­sumers and busi­ness own­ers can be ex­pected to start re­plac­ing in­can­des­cent, CFL, halo­gen and other light­ing tech­nolo­gies with LED al­ter­na­tives, even though cost will re­main an in­hibitor for many years.

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