|
Fortune:
It is obvious that Ethiopia is now in such a serious
power crisis that you have been forced to introduce
load shedding with a frequency that now has reached
every other day. What exactly has happened to the
power generation sector to make you introduce this
schedule?
Miheret:
The current situation of power shedding is because
of the imbalance in supply and demand. We have
short, mid and long term planning. This is the
supply-demand forecast and the planning that follows
this forecast. From the demand side, this year we
anticipated between 17pc to 20pc growth in actual
demand, despite the surface demand growth being
24pc.
There is a gap between the demand and supply side
growth because forecast depends on different
methodologies, knowledge base and experience of the
sector. Other major factors, such as economic
growth, social development, environmental
situations, industrial, commercial and domestic GDP
growth, have their own impact on the growth of
energy demand. Population growth is a very important
factor for the increase in energy demand. To
mitigate this demand, definitely there should be
supply side planning and this supply side planning
starts based on the master plan, which includes all
the factors I have mentioned.
Q: Let us discuss the work on the supply side
because obviously, the supply has not grown as much
as, or at least close to the demand, has it?
The supply side planning follows ways to mitigate
this demand growth in the coming five, ten or
twenty-five years, focusing on what should be the
generation, transmission, distribution and the
universal electricity access planning aspects. The
generation planning is very critical factor in this
regard. But the generation has its own limiting
factors to meet its own schedule.
Around the world, generation projects are not
completed on time or ahead of schedule; they are
delayed significantly due to forced or voluntary
situations. For both reasons, our projects are
delayed and that is one factor causing the deficit.
The second factor is the hydrology; especially
considering that Ethiopia depends on hydrological
resources for 95pc of its power generation. This
factor was not in our favour; the situation in the
existing dams is not in line with the metrological
or hydrological forecast anticipated for this year.
There is quite a big gap between the water volume we
had anticipated and what we actually got from the
Belg season. In addition to the low level of
water we got in the dry season, the dry season has
also aggravated the evaporation at the dams.
The other factor is that though we have had an
emergency plan of a capacity the country could
afford, the plan was to supply power to meet half of
the 24pc demand growth. That means the emergency
plan was meant to increase the supply by 12pc. If we
had planned to mitigate the entire (24pc) demand
growth, that means the country should deploy four
times what we have invested today to rent
generators. And this is beyond the country’s foreign
currency capability.
Q: How did you get the funding for the emergency
plan?
It is a complex subsidy element. We initially
planned to get financing from the World Bank and the
Ethiopian government. Though we started work on the
same day with the same objective, financing from the
Ethiopian side went efficiently and the emergency
generation started in December 2008.
The World Bank financing has been delayed; even the
bureaucratic decision making process has not been
finalized up to today. Hence, yet again, we now have
the capacity to generate only half the emergency
plan we had prepared for. The lengthy bureaucratic
decision making process at World Bank has delayed
half the financing for the emergency plan and thus
we rented half the generators we initially wanted
to.
The minimum duration of generators rental agreement
we can enter to is about six months. So if [the
World Bank is going to release the fund afterwards]
we enter another agreement for the remaining
generators, we will put the country into a serious
loan burden for a facility that we can use for weeks
or one month [because the rainy season is already
closer].
So we have to drop this option and it creates a big
gap. All these factors contributed to the big
deficit. In any country’s practice, this is [load
shedding] how you mitigate the deficit in such
situations.
Q: So can we say it is not feasible to rent those
diesel generators for six months because it puts a
lot of loan burden on the country?
It is not about feasibility. We started the same
scheme for six months with Ethiopian and foreign
financing. With the Ethiopian financing, the same
was completed in a few months and started operations
in December last year. With the foreign financing,
because of the financiers own conditions and
decision making processes, the scheme has been
delayed even without approving the tender up to
today.
So, even if it is approved today, negotiating,
signing a contract agreement and placing orders to
rent the generators will take until July and they
can be used only after July. By then, the scheme
will have lost its service purpose; we have already
lost the time we want to fill the gap.
Q: Your plan was for more diesel generators to be
rented for the short term and now you are actually
using half of your actual plan. Even so, I expect
it is a lot of financial burden on the government.
Let us talk about this burden. How much do you pay
in terms of kilowatt hours for the rent and how much
do you charge your customers in the same
measurement?
Though the plan was to generate 120Mw from the
emergency scheme, we are now getting 60Mw for 20
hours a day continuously.
Of course it creates a lot of financial burden. Yet,
for the short term, it is a big scale and feasible
practice in any global experience, as in the case of
Afghanistan, Iraq and some African countries like
Uganda, Kenya, Tanzania, Ghana and almost everywhere
because the continent is suffering a huge energy
crisis now. This is the best short term solution as
the containerized generators are mobilized,
installed and synchronized fast.
Their impact - we pay more than 0.20 dollars for a
kilowatt hour and collect less than 0.5 dollars from
the consumer. This is a huge subsidy from the
government and the corporation. We are doing this
only to mitigate the negative socio-economic effect,
not as a business objective.
So roughly, we are now spending about 100 million Br
to 120 million Br per month for fuel, in addition to
the capacity costs we have to pay to the owners of
the two generators, which is 10 million dollars for
each for the six months rental period. The 20
million dollars for the 60Mw is the least cost
available. In addition, we have to pay for fuel and
other costs. The monthly breakdown of the six
months’ rental cost is about three million dollars.
Q: Do you anticipate any possibility of the rental
of these generators being extended for a longer
period than the six months?
Well, hopefully, since the problem depends on the
start of the rainy season, whether it would start in
early or late July, the deficit could last a bit
longer. In that case, it could extend for couple of
weeks or for a month.
Q: You are now almost close to the end of agreement
period, which began in December. Do expect any power
supply from the almost finalized hydroelectric power
generation stations, such as Gilgel Gibe II and
Tekeze to replace these generators?
The agreement period ends around June. Already in
Gibe II, only about 200m of the 25.85Km tunnel
remains to be completed. So you can imagine what
huge progress it is. But still, the last one metre
is a challenge for us. Once we complete the
breakthrough on the tunnel, hopefully in early June,
the two tunnels to the powerhouse [penstocks] will
join the 25.85Km tunnel.
This is one of the biggest tunnel projects. Cleaning
the tunnel; removing the railing and ventilation
system, along with qualitative consolidating of
electromechanical system and civil works are
expected to be completed at the end of July.
Immediately after that, we will start filling the
tunnel and generate power according to the schedule.
Q: Still on Gilgel Gibe II, which you expect to be
the solution to the current situation, now the
remaining part of the actual physical works are the
about 200m of construction of the tunnel and other
tunnel related works. When these are finalized,
there is cleaning. Then, there are three stages of
testing: dry test, wet test and commercial test, how
long will all this take in total?
I think first of all, there is something we should
not forget; the highest voltage (400Kv) and the
longest transmission line (230Km) is also going to
be commissioned. This is the first of its type in
Ethiopia. The transmission is completed. It also
includes opticfiber communication wire for telecom
purposes and two of the biggest substations in the
country - Sebeta II and Gibe End - are completed.
Now dry test is going on simultaneously at the power
plant and the substation along with the remaining
works because we want to save time. The wet test
starts when the water is full in the tunnel and the
good thing about it is even if it is somehow
disrupted, we test it by loading [power] and
supplying to the system; that is the advantage. The
wet test and the commissioning test, even if in
terms of time we stop and start, we can do that by
synchronizing to the system. That means by supplying
power to the system.
Q: So you are planning to undertake wet test and
commercial test at the same time?
We do it simultaneously. We test it by actually
feeding the power to the system and that is also
what we mean by loading. Even we want the big
industries to be on because we have to test it with
the highest load in the system.
Q: How long does the cleaning take?
We are trying to make it shorter and expect this to
be finalized in about two months. Let us not forget
it is a more than 25Km long tunnel which is so
unpleasant for human beings. You can’t survive 200m
in the tunnel without air and people, in fact, have
died because of humidity and high temperature. For
that reason, we have been using ventilation with
safety standards and very standard technological
facilities that we have to take out now.
Q: What elements does cleaning include?
Cleaning the more than 25Km long tunnel includes
removing the railing, a very complicated ventilation
system, and equipment that helps the Tunnel Bowering
Machine for lighting the tunnel. It is after the
tunnel that we see consolidated grouting and the
tunnel should be solidified by the civil work. This
is also called curing time, once you do the concrete
wall, you need civil work of cement and concrete, so
it is a drying and curing standard engineering time.
And there are some works at the intake part before
opening the tunnel.
Q: The dry test does not need water because you
simply load power (voltage) to the generators from
another sources to check its capacity, proper
operation and sustainability. So I expect you have
started this test alongside other works long before.
How long have you been doing that test and what
elements do the dry system include?
It is an every day job. In the past months, we were
doing it on the turbines system, the control system,
the protection system and the SCADA system. It
includes the turbine (turbo machine) system and its
functionality, generator, other hydraulic and
electromechanical systems which have measurement,
control, protection and safety systems. And the
SCADA system, where you can control the whole plant
using a computer, and where you can see the plant
synchronized with the national grid, is also part of
this test. This is a high-tech system that we
stimulate by installing and feeding some false data
to test the whole system. It is a matter of high
evaluation on how stable the plant is with a very
high standard quality that requires professional
work.
Q: Once the dry test and cleaning are finalized, you
go on to the wet test along with the commercial
test, which is actually commissioning the power, is
that right?
Yes, we clean and test the tunnel first. This
includes testing the pressure, the water flow, the
intake structure, the penstocks (the two 1.2Km each
long steel pipes) and the turbo machine system with
water. After these works are completed, we will make
sure the whole system is ready, by feeding and
supplying power from zero to the maximum capacity,
then after that the commercial test goes on.
Q: I am aware that what you referred to as an
internationally accepted standard and procedure of
testing power generation plants demands the three
levels of tests to be undertaken one after the
other. It is only after these tests that the
contractor will handover the project to you for
actual commissioning. And of course, you test the
plant for sometime before you release the
performance guarantee bond. In total, it takes about
six months. Now you are telling me that you are
going to finalize the tests in about two months or
so, while undergoing wet and commercial tests at the
same time. I can understand the immense pressure you
have been under due to the power crisis and how
quick you want this project to be commissioned. But
won’t that be risky? Will the project contractor be
willing to hand you over the project without going
through the normal practice?
No! Not that way! You do not have to isolate some
part of the system. You can do some separate tests
but you synchronize them to the system. I am sure
EEPCo’s capacity and experience in the past 60 years
in the power system is competitive and the
contractor has to rely on our capacity on the
particular matter. So I’m sure we know our business
and we will do it to the best interest of the
public. Since it is team work, we will achieve our
timing and keep the one year warranty with the
contractor. After that, we can stop the plant and
check everything before taking out its liability.
But we will not undermine the safety rules because
of the pressure.
Q: Let me take you back to the blackout issue. There
used to be a line dedicated for businesses engaged
in export trades. There are reports that you have
stopped that. Along with the current situation of
the power shedding arrangement, which is at least
every other day’, that indicates the shortage of
power supply and the level of water at the dams has
reached a critical level. Considering the worst case
scenario, for example, if the expected rain turns
out to be negative, how long will you be able to
supply power with the current amount of water?
With regard to the consumer grouping, it is based
on the economic and social impact of the power
outage. We have classified consumer groups. In terms
of the industrial aspect, we have heavy industry
consumers who have a dedicated line or one mixed
with the other domestic or commercial consumers. We
have export industries which have a dedicated line
or one mixed up with the other from domestic or
commercial consumers. When it is the social aspect,
we have very sensitive consumers, like hospitals,
schools, clinics, as well as water supply and
telecom facilities.
The significant power demand is from the industry
with commercial and domestic sectors. Thus, the
saving is also from these sectors. Those heavy
industries are warned to plan their maintenance in
this time of shortage to mitigate the impact with
the possible demand side management.
Most of them are to be appreciated for obeying the
notice, and they are doing major inspection and
maintenance works. Some of them are preparing their
emergency supply for this period. They will be able
to survive by doing their critical activities.
Export industries are classified under a clearly
committed market. They have been given power,
whether through a line dedicated to them or in
between consumers; since they are the major aspects
of the Ethiopian economy they are given priority.
But as citizens of this nation, sometimes they
should share the burden by using their own internal
capacity. Since they have the financial capacity,
they have to be part of the solutions by using their
resources.
About the water level, on our part, we are very
vigilant not to let the volume go below the lowest
acceptable level. Though we have been successful in
maintaining that level of water, the peak hour is
still challenging us. Nevertheless, our optimistic
plan is to keep to the same situation up to July. It
also depends on consumers’ behaviour, like in
workshops, garages, and bakeries. They have to
shift to stay with today’s consumption for tomorrow,
and it also requires consumers’ behaviours to live
with discipline for short periods and hope for a
bright future. This is the fact of life in the whole
continent, even in the world.
Q: From the report on your desk, I can see that the
red line indicates the lowest acceptable level of
water, while the black line indicates the actual
water level in the dams. But I also see that for
most of the dams, for the most part, these lines are
overlapping. Has the current aggregate water level
throughout the dams across the country reached the
lowest level?
Now we want to keep the aggregate reduction per day
to an acceptable centimetre. This [the report I
have] is of hourly reductions for every 24 hours.
But the net effect, we want to keep where it should
be. [For example] if we want to maintain a one
centimetre reduction a day in Melka Wakena Dam, we
will avoid further reduction by cutting power
because we cannot compromise any other way. We have
been successful so far and we have to monitor levels
24 hours. Every one at the dams, the transmission
lines, sub-stations, the distribution centres and
the consumer must be vigilant.
Q: What is the daily acceptable level of reduction?
Well in Melka Wakena, say one centimetre, while in
Gilgel Gibe II, it is about two centimetres.
Q: In normal times, how much is the daily average
reduction?
It depends on the season, the time, the day, the
volume of water in the dams; but it could be 10cm to
20cm.
Q: What about the water supply to Gigel Gibe (GG)
II. Obviously there is a problem with the level of
water in all the dams, including Gilgel Gibe I,
which is the source of water for the former. So, if
the volume of water in the source dam (GG I) is low,
if it remains at that level in the coming months,
how you will you be able to generate power from GG
II even if it is commissioned?
In the first operation, hopefully by the end of
July, which is also a good season, the dam would get
sufficient water. But even with the minimum water
level with which GG I can’t operate, there is a
possibility of opening the bottom outlet gate and
filling the tunnel and getting power from GG II. Its
hydrological harmony is taken care of in earlier
design steps. So we still have room to play in and
July is a still a reasonable time when even in the
worst case scenario, we can generate power from GG
II.
Q: There are experts who argue that though the plans
for the currently under construction hydroelectric
power generation projects have long been on the
shelves of EEPCo’s offices, they have not been
implemented and initiated until recently when you
started this aggressive and intensive works on about
six hydroelectric power projects. Why have those
plans waited for so long while the demand was
obviously expected to increase when the country
entered into a free market economy?
Unfortunately, it is not wise to blame the past. We
have to learn from our mistakes and weaknesses in
the past because it is the best way to benefit from
the future. In this aspect, we can look at where we
were in the early 90s. There were only 320Mw with
only 3,000Km of high voltage and about 7,000Km of
medium and low voltage networks and about 320 towns
with access to electricity.
But now, including the emergency 270Mw, we have
9,000Km high voltage lines, 75,000Km medium and low
voltage lines and 3,200 towns under service. The
delay has internal and external factors. While
following a very sluggish and conventional way of
expansion in the planning, feasibility, designing,
implementation and financing phases, what we had
achieved in 50 years was about six, seven or a
maximum of 10Mw per annum. Hydro plants came into
operation at about 10 to 15-year intervals with
hundreds of megawatts. But there were no complete
and full-fledged feasibility study and bankable
document.
Q: There are also arguments that before indications
of the possible power crisis started to float - the
time the current power generation projects were
started - there was less commitment at the highest
level of the government about power generation. That
means the sector had not been given the emphasis it
deserves at the beginning of the free market system.
Do you share this view?
It is not always the same. There is no complete
homogeneity in such thinking. But as far as I know,
there is a far-sighted vision and commitment from
top leaders. But there were also those in the top
level of the government who thought otherwise. There
were, thus, two conflicting ideas.
For example, though our financiers had said that
Gibe I would be enough for 10 years, and thus,
advised us to invest the money in other sectors, the
government continued to work on the other projects.
In fact, it was before we consumed Gibe I for only
10 months that the power problem started, let alone
being enough for 10 years.
Q: For example, the infrastructure development area
the government is known to be successful in is the
road sector. This is due to the emphasis the sector
has enjoyed from the government. Do you believe that
your sector has been given equal attention?
Here there is a mixed approach. Like you said, the
road sector gets a lot of attention and is
attractive to financiers since it is a main
development infrastructure. But in the case of
power, the financiers want us to be stable
financially and work as a business entity on one
hand. On the other hand, they want us to be
development-oriented businesses. So in this respect
there is a dual approach and definitely this sector
faces two challenges in bringing these to one.
Q: When do you expect to reach a level where EEPCo
and you, as a senior official of the corporation,
enjoy compliments following your successful
achievements in developing the energy sector as the
road sector doe now?
Handling the power sector is a very tough issue,
which, sometimes, is higher than the socio-economic
crisis. Unfortunately, power is a very determinant
factor in every bit of life. Every single life in
every second is dependent on energy. So has the fast
development move. Our big challenge is the
dependence on foreign resources. When we are out of
this dependence, definitely this will mean we can
achieve all our national objectives.
Q: When do you expect EEPCo to take Ethiopia out of
the current situation?
To be frank, we have a very bright future. If we
finish the three projects ahead of us - Beles,
Tekeze and GG II - and when we come out of the daily
challenges we have to face over GG III, then we are
likely to be free from the current problems.
Beyond that, we have another cascade of projects in
line; I am not going to mention the details because
these will be announced by the government soon. And
our strong foreign market will start in January
2010. Then our dependence on foreign financing will
end.
Q: EEPCo has been under different structures under
the current government. In the first ten years since
EPRDF has come to power, it was under the former
Ministry of Infrastructure, along with 12 other
government agencies. Now it is under the Ministry of
Mines and Energy. Do you feel that you should have
been under a ministry which deals only with energy
issues, as in the case of some other countries like
Kenya? Do you believe that such structural issues
and instability have hindered you from achieving
what you could and should have achieved, perhaps, if
you were under a ministry that is directly
responsible only for energy or power generation?
As you know, there is a major national level
restructuring process going on in the country right
now. The national transformation covers all sectors;
the energy or power sector is one of them.
If you see the development [over the years]
the infrastructure ministry was multi-disciplinary,
now it is reduced to a few focused sectors. The
structural issue is a top government level,
macro-level policy makers’ issue. If you see the
natural progress more focused sectoral ministries
have been making; after that, the national reform
program has been launched.
As a result of the past and current development, as
well as the dynamism of the power sector, now we are
also entering a new restructuring phase. For my own
sector, within my own mandate, I could say it very
much demands very basic restructuring. We need a
more focused, optimum, customer-oriented and
sectoral structure based on the core process. The
construction and the operation should be separate
businesses; the generation, transmission and
distribution should be organized into a bundle under
public ownership.
Q: So have you suggested these changes? Does that
mean it should have its own ministry?
The natural growth of the sector leads us to the
restructuring, and I think the issue is being
discussed by higher officials in the government. |