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Plasma Screens

The reason for this is that plasma screens are very power hungry devices consuming up to three times as much electricity than their old cathode ray tube (CRT) predecessors in terms of watts per screen inch. Liquid crystal displays (LCD) are slightly better but still less efficient. Some manufacturers boast about having green screens which use far less power than their competitors. But even if they were to be on a par with CRTs the fact is that flat screens tend to be considerably larger than older TVs with the latest being a mammoth 50 inches, about twice the size of the largest CRTs. So notwithstanding a major advance in powering these devices it is inevitable that they will consume more power.

The other issue is that of waste. An estimated 70 million old CRTs sets are expected to be dumped by 2010. Each containing hazardous materials that can harm the environment if not disposed of responsibly.