 |
Deputy Prime Minister Barnaby Joyce
has linked the SA storm to "too
many solar panels or wind turbines". |
Could the South Australian power outage repeat itself in
Victoria? The answer is unlikely, but not beyond the realm of
possibility, because extreme storms happen here too.
SA's power outage was not the result of too many solar
panels or wind turbines, as suggested by our Deputy Prime Minister Barnaby
Joyce, but rather severe winds and lightning. In particular, several of the
major transmission line towers that form the backbone of SA's power supply were
bent over like matchsticks by the extreme winds.
This, and possibly lightning strikes as well, led to an
imbalance in power supply that was far too rapid to be managed via adjustments
in other sources of supply. In such circumstances, the entire power system had
to be shut down, otherwise it would become dangerous with electricity supply
exceeding the tolerances of power equipment.
If, for example, the series of power lines running between
Melbourne and the Latrobe Valley coal generators were to suffer a similar fate
due to storms, or maybe a severe bushfire, then our state's entire power system
would also shut down. Victoria is vulnerable because it is so reliant on power
from just one geographic location. But thankfully it would take something quite
extreme to take out these powerlines.