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e&e No 26 The Electric Energy Crisis: Causes and Solutions Minimizing the Negative Effects of Electrical Energy Ratio Aggregated Value by Sector and Electricity Consumption How to handle the “Year After” About
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THE
ELECTRIC ENERGY CRISIS – CAUSES AND SOLUTIONS Author : João Antonio Moreira Patusco The Deficit in the
Hydraulic Installed Capacity The ratio between the
hydraulic generation and the generation potential of the annual
installed capacity permits to obtain the average utilization factor of
the power plants, whose historical results are shown in graphic 1 for
the period 1970 – 1990. It is noticed that the fitted straight line follows a direction practically parallel to the X axis which shows an average utilization factor practically with no growth in the period.. It is assumed that the indexes below the average value permit the recovery of the reservoirs’ levels, allowing from times to times an adequate reserve. One can say that between 1980 and 1983 there was an exaggerated reserve which now would sharply lower the MAE prices
Graphic
1 – Utilization Factor and Fitting for the 1970/1990 Period
Graphic 2: Utilization Factor and Fitting for the 1970/2000 Period Such
behavior would be even desirable if it would be a consequence of
the existence of a robust Transmission Line (TL) network that
would allow to optimize the utilization of the available water from
different Brazilian hydrographic basins, which is not the case. It is
possible that the North/South TL and other regional TLs have
contributed to change slightly the curve’s behavior but not at
levels sufficient to prevent the progressive emptying of the
reservoirs that culminated in the supply crisis. Should
the 1991/2000 utilization indexes follow the 1970/1990-period average
(graphic 3) it would be necessary to add the power shown in graphic 4.
It should be noticed that in 1998 there was a record deficit of about
6000 MW relative to the existing capacity.
Graphic 3: 1970/1990 Utilization Factor Average extrapolated to1991/2000
Graphic 4: Additional Capacity Necessary for
Maintaining in the Nineties the Utilization Factor of the Two Previous
Decades The
Brazilian Energy Balance
– BEB, elaborated and published uninterruptedly for 25 years,
was used as data source for the graphics. BEB is a document of
large circulation in the energy area and others, and by society as a
whole, both in the national and international circles. In other words,
the information that permitted to forecast the present crisis were
widely available. The utilization factors of the installed capacity
were in the last 5 years about 10% above the capacity of that used in
the previous decade. They were as well 10% above those foreseen in
Eletrobras’ multi-annual plans. The system presented and presents a
deficit of about 5000 MW in the last five years. The
Existing Planning Mechanisms and their Gradual Deterioration BEB, whose data were
used for the above analysis, is based on the following procedure: (1)
In February the data collection is started by sending about 600 work
sheet data that should be returned until March 30; (2) in the first
week of April a survey is made and new correspondence is sent; (3) in
the second half of April a new survey is carried on and contacts are
made by telephone and e-mail; (4) in the first half of May a final
evaluation is made and the last contacts are made by e-mail and
telephone; (5) in May and beginning of June about 800 forms are
processed and some data are made available via Internet; (6) in June
and July the Portuguese and English versions are written; (70 in
August theses documents are published and (8) in September the
electronic version for the Internet are elaborated and the printed
edition distributed. These explanations
concerning BEB have the purpose of showing that when there are
procedures, monitoring and management, the activities flow without set
back. It is even ridiculous a comparison between BEB’s complexity
and that of the Electric Sector but it should be mentioned that some
links of this administrative practice have been broken when the Sector
was restructured. A first analysis made by specialist of the area, and
I include myself among them, indicates problems of identity crisis in
the sector, power struggle, team demobilization, discouragement,
apathy and even the presence of illicit interests. The problems that
restrained a larger expansion of the installed generation capacity
were known but there was a lack of vehemence to made them public and
politic will or decision to solve them. Could it be that if some
hero, invested with patriotism, would summon the media, would escalate
a tower of Transmission Line and on the verge of throwing himself,
would claim for actions and then would we be in a better situation? The planning of the
electric energy supply expansion was under the responsibility of
Eletrobras but the privatization process started in 1995 made the
company gradually lose its condition of holding company of the
Electric Sector and from then on it was considered as one of the many
companies acting in a competitive market and therefore a competitive
company. Therefore, two years ago the responsibility for expansion planning was transferred to the Energy Secretariat – SEN of the Ministry of Mines and Energy - MME, that established the Coordinating Committee of the Planning of the Expansion of the Electric Systems - CCPE to carry out this task. It happens that the SEN did not have and does not have physical structure and human resources to be engaged in this additional activity. The solution adopted was to continue having the support of the jurisdictional companies, the establishment of committees and contacting of consulting personnel, everything in a very provisional form. It should be added
that in the last two years SEN had 4 Secretaries and in each
administration the cadre of coordinators, advisers and consultants and
the administrative procedures have been altered. With such conditions
one should ask: Would it be possible that a hypothetical hydroelectric
project , granted in 1994 and with operation foreseen for 2000, was
duly monitored and that the necessary conditions were created so that
what was foreseen would became a reality? The crisis is here...
it is inevitable but the Brazilian people is creative and cooperating
and I believe that the problems in the short run will be solved. We
will reduce consumption and increase the offer - beware of the
solutions (idiomatic expression) adopted in periods of crisis – and
the reservoirs will have conditions to reach reasonable levels of
water. But.. what about the future? The
Need of an Energy Study and Planning Entity The
Ministry of Mines and Energy continues without adequate
infrastructure. The complexity grows if we consider that electrical
planning cannot be viewed in an isolated form anymore.
The use of natural gas will not be restricted to thermoelectric
electricity. Natural gas will be used in industry, in commerce and in
residences. This gas will substitute LPG., fuel oil, firewood,
electricity, etc., a fact that will have an influence on the refining
structure, on the external energy trade, on the type of petroleum to
be imported, etc. In other words, there should be an integrated energy
planning, otherwise tomorrow we will have problems not because there
is lack of water but because gas is lacking. Finally,
I believe that we are now in a period of institutional de-structuring
or, if you prefer, re-structuring and we do not
have an entity (office, governmental agency, or other) that has
a permanent, specialized, well-paid technical team, preferably without
political interference, which could conduct energy planning in a
permanent and sustainable form. In the transport area we have GEIPOT,
in the economic area we have IPEA and in the energy area, whose
projects may take up to 10 years from its conception until its
operation, we have nothing similar.. In
the present situation there are too much improvisation, too much rush,
too much disorientation so that they already affect the quality,
punctuality and infrastructure of the Brazilian Energy Balance, a
document that is the essence of the Brazilian energy data
transparency. I
don’t intend to climb a tower of
Transmission Line, it is not necessary, the energy crisis is
sufficiently dramatic. However,
it should be kept in mind that crises are useful for nations when they
induce course corrections. Sacrifices
of the next months will be in vain if we do not
provide the Electrical Sector with a Planning and Follow Up
mechanism that permits
that the Government and the Society will not be startled by another
similar crisis. Brasília,
June 07, 2001 Note:
the author has a 29-year experience concerning
activities at the Energy Secretariat of the MME, of which 26 years in
the coordination of the Brazilian Energy Balance. |