Splitting the atom
was a major technological feat for humankind. Releasing energy from it
for electricity production was yet another major step towards
supporting the unfolding path of civilisation.
The worst memories
of the deliberate unleashing of the power of a nuclear device remain
the exploding of atomic bombs over Japanese towns of Hiroshima and
Nagasaki in 1945, towards the end of the Second World War.
In terms of nuclear
accidents of monumental disaster, the 1986 Chernobyl disaster in
Ukraine (then in the former Soviet Union) has no match. Many deaths and
severe health problems followed this accident. The radioactivity that
accompanied the Chernobyl accident was several times higher than what
was unleashed by the atomic bombs dropped on Japan during the Second
World War.
The radiation
spread as far as Belarus, Russia, Ukraine, and parts of France and
Italy. The Chernobyl accident was adjudged to have resulted from human
error, including design defects. It was also accompanied by a series of
attempts to cover up the impacts, as well as a shrouding of the
exploded reactors in defective concrete.
Today, the world is
alarmed by the massive impacts of the 8.9 or 9.0 magnitude earthquake
that struck off the coast of Honshu Island in Japan. The combined
effect of the earthquake and the ensuing tsunami has astonished a
watching world, brought great misery to the people of Japan, and raised
a huge question mark about how prepared we can ever be for natural
disasters.
Everyone accepts
that Japan is well equipped and prepared to handle earthquakes, with
building codes and other emergency infrastructure set to deal with such
happenstance. What has added a new twist to the current situation is
the impact that the earthquake and tsunami has had on Japan’s nuclear
power plants.
An explosion at the
Daiichi plant near Fukushima on March 12 raised anxieties. The
explosion blew off the upper exterior walls of the plant. The standby
diesel generator that would have pumped water to cool the plant failed
one hour after the earthquake struck, leading to the overheating of the
water and resulting in the explosion.
The authorities
announced that the reactor core of the plant was safe, and that there
wasn’t a huge radiation leak. Nevertheless, over 100, 000 people had to
be moved, owing to fears of radiation impacts. The evacuation zone
stretched over 20 kilometres radius of the plant. Over the next few
days, the radiation kept below acceptable official levels, although
anxiety levels remained high.
A more severe
explosion early on March 15 raised radiation levels, increasing fears
that the containment vessel of reactor 2 had been damaged. The
evacuation of emergency workers from the power plant signified the
possibility of a nuclear catastrophe.
The nuclear game is
getting a link to soccer in Brazil where there are plans to bring a new
nuclear power plant on stream, early enough to provide electricity for
the 2014 FIFA World Cup fiesta the country would then be hosting. The
country already runs two nuclear power plants that came into use in
1985 and 2000, meeting 50 per cent of the electricity needs of the
state of Rio de Janeiro. Environmental concerns are being addressed
through pledges to adhere to rules. But pledges are not so reassuring
in these matters.
Closer home in
Africa, the drive towards nuclear power is gathering momentum. South
Africa already invests huge sums in this mode of energy generation and
produces 5 per cent of its electricity from nuclear plants. Uranium
rich countries such as Namibia believe that this is a way to boost
economic development. There have even been talks of the possibility of
building floating nuclear plants off the coast of Namibia.
Although Namibia is
not earthquake prone, this does not sound like an exciting or safe way
to go. Apart from the risks involved in operating nuclear power plants,
it is not quite clear to whom the country plans to export the surplus
electricity that would be generated by this plant. One could venture to
say that floating nuclear plants would be dynamic power generators and
may be moved closer to export markets, possibly as far away as energy
starved Nigeria.
The incident from
Japan also underscores the need to move away from mega power
infrastructures that depend on extensive distribution grids. It
suggests that nations should invest in the development of renewable
energy sources from abundant solar, wind, and other resources, rather
than embark on high-risk technologies that we cannot quite control.
It is also a time
to realise the viability of localised energy provision on the basis of
energy autonomy for discrete zones and communities. This would be
cheaper to deliver and ensures better energy supply, including during
crisis situations.
Considering
Nigeria’s emergency response preparedness and capacities in simple
areas like fires, oil spills, and industrial accidents, as well as the
quality of maintenance of our hydropower and other plants, venturing
into the nuclear power arena here is nothing short of courting
disaster.
