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Visit to Al Taji power station, near Baghdad, Tuesday 14th
May 2002.
Al
Taji power station was built in 1976-8, and consists of 16
separate gas-turbine units which generate the electricity.
Al Taji can operate on either natural gas, or a light oil
fraction called “gas oil” [similar to petrol or diesel]. Engineers
told us that it was originally used to top up baseline supply
during periods of peak demand, though now is operating continuously.
The gas turbine generators are military jet engines. This
system is also used in Britain, and has the advantage that
stations are quick and cheap to build, and electricity production
begins within minutes of switching on. [Large thermal stations
which use steam turbines as the generators, need several hours
after start-up to start producing electricity.]
Like
almost every power station in Iraq, Al Taji sustained severe
damage during the Gulf War. Engineers report it took 5 years
to do sufficient repairs to allow production to resume. Even
so, some units are damaged beyond repair, and all others are
operating in an unreliable state. During our visit, 5 of the
7 larger units were working, one was temporarily out-of-order,
and one large and all nine smaller units were permanently
not working
.
In theory, if all units were producing at peak capacity, the
station could produce well over 200MW. However, current production
is around 80-90MW, and during our visit, as one unit was down,
production was 60-70MW. (That’s the equivalent of a single
electric kettle, and no other appliances, in 20,000 homes,
or a single light bulb in one million homes.)
The
engineers cited many problems in obtaining the parts necessary
for essential maintenance and repairs. They described how,
up until 1991, a full range of spare parts were held in stock,
but they have long since been used up. Orders parts from abroad
are subject to delays, from 6 months to indefinite. They showed
us a copy of a ‘hold document’ from the UN sanctions committee,
requesting minute details about the parts requested. [including:
maximum pore size of filter, maximum and minimum air flow
rates, material composition of nozzle.] Four new units had
been ordered from a British company: two had arrived, of which
one was incomplete; the other two were still on order. The
engineers did not know the reason for the delays.
As
a result of lack of parts, the station is working in an unreliable
condition, and trips and breakdowns are commonplace. [If a
unit stops working suddenly, that will put extra strain on
the other units.] Efficiency is reported to be considerably
below normal (about 22%, whereas it was about 28% in 1990).
Engineers reported that efficiency is reduced because of problems
with equipment, and a lower quality of fuel, as the oil refineries
are also in poor repair. [Presumably this only applies to
the liquid fuel.]
Engineers
reported particular problems with turbine blades and control
equipment; failure of these can result in severe damage to
the rest of the equipment. Lack of maintenance causes unsafe
operation, as safety standards cannot be adhered to. Engineers
reported that there have been accidents resulting from poor
quality of equipment.
Al
Taji is one example of the problems plaguing the whole electricity
network, which are cited by the UN, UNICEF, and other agencies.
The whole power generating network is unable to meet demand,
and even in Baghdad, blackouts, are common. The rest of the
country suffers from less reliable electricity supply – in
rural areas it can be only a few hours a day or less. The
poor quality of supply is a further problem: an unstable and
low frequency causes problems for motor appliances, such as
pumps, fridges and fans. Unscheduled blackouts - because of
faults, or demand which cannot be met - cause voltage surges
which can damage sensitive appliances. These problems also
add to the general wear suffered by the generating network
itself. Essential components of the distribution network,
essential for control and safe supply, are also in poor condition.
The
UN report that the Iraqi power network is in such a precarious
state, that sudden loss of a single power station could cause
the whole electrical network to stop working. During our visit
to the Electricity Ministry, we were told that sudden loss
of a station the size of Al Taji would cause minor problems,
and probably some localised blackouts. But loss of a medium-large
sized power station, 300MW or larger, could result in the
whole network going down. The Iraqi engineers described this
as something they are all afraid of, and estimate that restarting
the network would be no easy task, and would probably take
several weeks, if they were to succeed at all. An independent
power engineer based in the UK, when asked if this sounded
credible, estimated that their story does not sound unrealistic.
[For comparison, if the UK network was to go down, it would
probably take a couple of days to restart it, and longer for
the quality of supply to return to normal. The UK network
has a full complement of parts, staff, and a modern and sophisticated
control system – none of which are present in Iraq.]
Electricity
is not a luxury for an urban population. Electricity is essential
for pumping and treating of water and sewage, lighting, refrigeration,
as well as domestic uses. Sectors of Iraq’s agriculture also
depend on electricity, particularly for irrigation.
UNICEF states that the impact of power cuts on the water and
sewage is considerable: reduced water pressure, increased
likelihood of contamination of water, clogged sewers, back-flow
of sewerage into living quarters, and disease. [1] The lack
of an adequately functioning electricity network is depriving
the civilian population of reliable drinking water, and contributing
to water-borne infections. The UN Humanitarin Coordinator,
Tun Myat, stated in May 2003 that "I consider water and
sanitation to be the biggest killer of children in this country".[2]
1. UNICEF, 15 April 2002 Profile of Children and Women in
Iraq and UNICEF Country Programme of Cooperation. 1. Situation
of women and children
2.
See What
the agencies say
return
to Sanctions & health: infrastructure & poverty
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