Energy situation in December 2012, status report

31. January 2013. / News Serbia Energy

About 120 million KWh were spent daily – Thermal Power Plants increased their production – Larger inflows increased the output of Hydro Power Plants

At the end of second decade of December the daily temperature was some 1.2 degrees lower than the average for this period, but the production of electricity was still according to the plan. Daily in Serbia, excluding Kosovo, about 120 million KWh were spent, and the largest part of these needs was covered by available capacities of EPS, as it is usual for the operation of electro energy system. Daily production of coal fired power plants (without the TPP “Kosovo”), was about 92 KWh, that is some nine percent more than balance quantities, and this is result of good operation of all TPP in EPS, to mention also the two records in production realized  exactly during the second decade of this month.

Increased inflows of Drina and Danube rivers enabled run-of-river Hydro Power Plants to produce more electricity than in November, which however was not enough to reach planned quantities for December. It was 4% less than balance. Accumulating HPPs also did not fulfill the plan, in part due to slow reservoirs filling, but more as a result of efforts to preserve the reserves of the energy content in the lakes for the winter days, when consumption increases.  In the time of this Report, in the accumulating lakes there was less water than envisaged by the balance for December. A bit below the balance were also the supplies of coal in the stockyards of TPP and that is, despite extreme efforts of the miners, the consequence of  over balance production of TPP and not harmonized quality of coal. For all these reasons, EPS used to buy 2.4 million KWh of electricity daily.

Mr. Jovica Vranić, the director of Energy Planning and Management Sector in the Head Office of EPS for Trade  says that until 17th of December the production of electricity in the Republic of Serbia was two percent below the balance, and if we exclude the consumption in Kosmet at that time, consume comes to only 1.8 %  under the balance. Thereby, during the first 17 days, external air temperature was 1.4 degrees lower than the average, which means that it was colder than during the second decade. Vranić mentions that the coldest was between 9th  and 14th December, with the average daily temperature of -3 degrees Celsius, and that the consumption of electricity on December 13th, for example, increased to about 128 million kWh. That five days long peak period of high consumption, as Mr. Vranić says, did not change considerably the constant of decreased electricity consumption in Serbia, that is primarily due to reduced industry operation.

Regarding the electricity production until the 17th of December, it would have been at the balance level, if there was not a delay in overhaul of TPP “Kostolac B2”, so that in the total sum of kWh, minus of 1.7 % was recorded. For that reason, minus in the production of coal fired TPP was recorded  that lead later on  along with the strong Kostolac power unit  in the grid and total higher engagement of TPP, at the end of the second decade resulted in higher production than planned, as we already wrote about.  The run-of-river Hydro Power Plants, unlike previous months, gave to the system “only” 2.3 % less energy than planned, because the inflows were at the balance levels. Accumulative HPPs were also engaged a bit more than planned. HPP “Piva” specially contributed to it, because of the fact that inflows of Piva were very good until the end of November.

Looking back to the performance in November, Mr. Vranić pointed out that for that month both production and consumption were below the balance.  Consume of 2.9 billion kWh was less than planned by 6.8 %, and 12% less than that in the last year. However, the days were also warmer than average November days for 3.7degrees, but we mentioned that this is not the only reason for decrease in consumption.

The production of EPS Power Plants (excluding TPP “Kosovo”), was 2.95 billion kWh in November, which is some nine percent below the balance and 7.4 percent less than in November of last year.  Only “Kostolac B2” was missing, and because of that coal Thermal Power Plants produced about 8% less than planned.  Run-of-river HPPs produced a bit less than planned and accumulation HPPs even half as much lesser. The water in the reservoirs was preserved for the winter so that during the second decade of November, the content of reservoirs was practically at the balance level. Furthermore, on the last day of November and on the 1st and 2nd of December, the reserves in the reservoirs were above the balance. In the free market in November, only 144 million kWh were bought.

Regarding the state of the electric power system of EPS and changes in consumption from month to month, in December is expected safe and stable execution of electro energy balance – said Mr. Vranić.

Source;Kwh/Serbia Energy

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