CANBERRA Australia's biggest renewable
electricity source, the Snowy Hydro power scheme, may have to
shut down major generating turbines due to the nation's
crippling 10-year drought.
In a desperate attempt to keep running, the Snowy Hydro
operator said on Tuesday it had turned to cloud seeding to
boost water inflows.
"It is unrealistic for anyone to think that the Snowy
scheme could somehow have been immune from the effects of the
current severe drought," Snowy Hydro Ltd Managing Director
Terry Charlton said in a statement.
Prime Minister John Howard last week asked Australians to
pray for rain in the food bowl Murray-Darling River basin, an
area the size of France and Spain that accounts for 41 percent
of the nation's agriculture.
Howard warned that without heavy winter rains in coming
months, irrigation in the food bowl would be turned off as the
worst drought for 100 years grips Australia.
In a move that local authorities feared could reduce supply
of power to the capital Canberra, and major cities Sydney and
Melbourne, some of Snowy Hydro's operations could be stopped by
May-July without heavy winter rains, the Snowy Hydro said.
The company said that if current drought conditions
continue, water levels would drop by May to minimum operating
levels in the two major artificial lakes at the heart of the
project, an internal assessment for Snowy Hydro said.
"It is possible, but not yet probable, Lake Jindabyne will
drop up to a further 1.5 meters (5 feet) below minimum... by
late June/early July," it said in a statement.
Water levels in Lake Eucumbene and Lake Jindabyne were at
just 10 percent of maximum.
The Snowy Mountains Scheme is a combined water diversion,
storage and hydro project built over 25 years, which links
seven power stations and 16 major dams through 145 km (90
miles) of tunnels cut through Australia's rugged southeastern
Australia's government last year blocked a planned A$1.7
billion privatization of the scheme, built with a largely
migrant workforce topping 100,000.
The project provides 74 percent of the renewable energy in
the mainland power market, shifting snow-fed rivers west to
irrigators in the Murrumbidgee and Murray River valleys.
Snowy Hydro contributes around 3.5 percent of the power in
Australia's national electricity grid. If the shortage
persists, it may be filled by electricity from coal-powered
stations in the national grid, or by green sources from other
The company said it was confident it would meet electricity
and water commitments until the end of the year with the
wettest winter months approaching, and following a cloud
seeding program and recycling at its biggest power station.
"Cloud seeding is a solid program, well accepted overseas
for over 40 years. But it's just one of our strategies," a
Snowy Hydro spokesman said.
Snowy River Mayor Richard Wallace said storages should have
been protected and have been allowed to fall so low that a $10
billion national water reform plan under consideration by state
and national governments may come too late.
Parts of Australia have been in the grip of drought for a
decade. Analysts say the A$940 billion ($783 billion) economy
would grow up to 1 percent more in fiscal 2006-07 were it not
for the drought.