Australian cities are facing power shortages and we need to
build new power stations to keep up with the demand. The New South Wales state
government has just announced the intention to build two new gas-fired power
stations (300MW & 400MW) and that is a good move, especially as they have
not opted for coal-fired stations. We have been against the building of new
coal-fired stations in Australian for quite a few years now. But the new
gas-fired stations are mainly intended for meeting peak loads, not base load.
Ultimately, New South Wales and other states are going to need more base load
power stations. And in the past, the only option has been coal-fired. Renewable
power such as hydro, wind and solar can only take us so far, since they can only
make a relatively small contribution (say 20% maximum) to the overall energy
mix.
But coal-fired stations are no longer an attractive option. For
a start, Australia is already being pilloried for its large carbon dioxide
emissions and more coal-fired stations will only make that worse. Second,
open-cut coal mines are an enormous blight on the landscape – hundreds of square
kilometres of open-cut scar has to be seen to be believed – and extremely costly
to restore and re-vegetate. And you can forget these weird schemes for
underground carbon dioxide sequestration – that just ain’t gonna happen in spite
of there being at least one small installation overseas.
So that leaves nuclear power. And why not? There is no
pollution in normal operation (apart from the huge amounts of waste heat
produced, as with any thermal power station). Nor is there any huge mining scar
– we already have several uranium mines which could easily satisfy Australia’s
demand. And we will eventually be storing long-term nuclear waste in the
Northern Territory, following recent enabling legislation. So why not take the
next logical step and build some nuclear power stations?
The first one could be sited next to the proposed Sydney water
desalination plant at Kurnell. This will need a great deal of power and it just
makes a lot of sense to build the power station next to it, just as Perth’s
desalination plant will be built next to the existing Kwinana power station. To
make it worthwhile, the proposed nuclear power station should not just meet the
demands of the desalination plant when it is operating but also make a
reasonable contribution to Sydney’s base load. In fact, if possible, it would
make sense to power the desalination plant only at night and provide base power
during the day. That probably means a rating of at least one Gigawatt but
perhaps it should be substantially bigger, so older inefficient coal-fired
stations can be taken off line.
Sure, there will initially be a huge outcry from those people
who are paranoid about nuclear power but tens of millions of people in the UK,
Europe, Japan and the USA have managed to live happily near nuclear power
stations for decades so why should we be any different? But has any Australian
government got the gumption to do it?
Leo Simpson