2.4 IMPROVING ENERGY EFFICIENCY AND MITIGATING LOSSES

The program to decrease 2010 electric energy losses in the UNEG is part of Federal Grid Company's 2010-2012 Energy Saving and Energy Efficiency Improvement Program, which was approved by the Company’s Management Board 24 December, 2010.

In 2010 the Program to reduce the UNEG electric energy loss had three key components:

  • Optimizing the scheme and parameter modes for electric grid maintenance and operating management;
  • Lowering power consumption to meet the own needs of the substations;
  • Commissioning energy-saving equipment.

As part of the efforts to optimize operating conditions and manage the electric grids, optimum operation for reactive power and voltage was maintained, electric grid equipment (transformers and OTLs) was shut off during light-load operation and the period for repair and technical maintenance of the main grid equipment was shortened. Reductions in auxiliary power requirement necessitate optimizing the performance of cooling fans for transformers and auto-transformers and for heating and lighting resources at the buildings that manage substations. The Company also worked to optimize the load on electric grids by building new substations and lines.

In accordance with the Energy Saving and Energy Efficiency Improvement Program, Federal Grid Company plans to conduct an energy audit.

In the future the Company plans to conduct an equipment performance inspection to identify locations with the highest losses and to develop additional measures for the Company to reduce electricity losses in the UNEG and to amend current planned targets.

In 2010 the total actual loss of energy was 22,525.621 million kWh, based on power balances in the UNEG.

Annual Energy Losses in 2008-2010

Dimension 2008 2009 2010
million kWh 21 866 22 121 22 526
% 4,63% 4,89% 4,79%

Relative amount of energy losses is defi ned to the volume of the balanced energy output from the UNEG to Federal Grid’s consumers.

Energy efficiency measures implemented since 1 January, 2010 Quantitative effect as of 31 December, 2010, MWh
Optimization of the electric grid steady-state conditions (per reactive power, per voltage) 40 645,1
Switch-off of electric grid equipment during light-load periods 75 794,3
Reductions in the length of time for the repair and technical maintenance of the main grid equipment (lines and transformers), including hot-line work 26 852,0
Lowering power consumption for the substations own needs 67 050,8
Installing and commissioning power factor correction units in electric grids 2 880,0
Replacing overloaded power transformers and commissioning additional ones at operating substations 2 181,0
Replacing measuring current transformers 71 522,4
Optimizing the electric grid load by constructing new substations and lines 4 714,4
Total 291 640,0

Federal Grid Company obtains power independently on the wholesale market, to compensate for actual net output loss in the UNEG, minus losses taken into account and paid for by market participants at equilibrium prices. The cost of power and capacity obtained by Federal Grid Company in 2010 to compensate for losses was RUR14,183,210,183.61, excluding VAT: RUR2,630,340,176.34, excluding VAT for power energy, and RUR11,552,870,007.27, excluding VAT for capacity.