One of the highlights of this year's policy address is the use of compact fluorescent lamps (CFLs), or popularly known as energy-saving light bulbs, in replacement of incandescent light bulbs.

The two power companies will issue HK$100 cash vouchers for subscriber purchases of CFLs. However, it is reported that the two companies will raise the tariff to absorb the cost of the CFLs.

Setting aside the political saga sparked by the CFLs, Yau said the primary objective was determined from the environment point of view.

Although there is widespread public discontent, he did not say if he would modify or cancel the cash voucher scheme.

"Our policy objective is to restrict the use of incandescent light bulbs, rather than to promote CFLs. We will consult the public next year as to banning the sale of incandescent light bulbs in Hong Kong," he disclosed.

"It is a wind of change globally, as Australia, Canada and Korea are planning to restrict the use of incandescent light bulbs by law in the next couple of years."

He further said the incandescent light bulbs are far less environmentally-friendly, as 95 percent of the electricity is used to generate heat.

If they are replaced by CFLs, a saving of up to 80 percent of current power consumption can be achieved. Assume that each household replaces two incandescent light-bulbs, up to 100 million units of electricity can be saved per annum.

Yau conceded that the CFLs contain mercury, which is harmful to the environment, while the number of collection points of incandescent light bulbs are not enough.

Also, CFLs are not commonly used because a CFL bulb costs several tens of dollars, while an incandescent light bulb costs just a few dollars. Since CFLs contain mercury, Yau was asked if there are other safer alternatives. He replied that LED light bulb is an environmentally-friendly product, but the cost is between HK$200 and HK$400 per unit.

(HK Edition 10/30/2009 page4)