2015 Annual Report

ru

Characteristics of assets

Assets Including the lease of and equipment serviced under the contracts. controlled by IDGC of Centre
Asset Name Unit 2013 2014 2015
Substations, 0.4–110 kV pcs 96,849 98,288 100,545
Installed capacity MVA 51,312 52,008 53,674
SS 35-110 kV pcs 2,359 2,363 2,372
MVA 33,562 33,936 34,243
SS 6-35/0.4 kV pcs 94,490 95,925 98,173
MVA 17,749 18,072 19,431
Transformer substations, 6-10/0.4 kV pcs 93,793 95,183 97,336
MVA 17,227 17,592 19,013
Distribution points, 6–10 kV pcs 697 742 837
MVA 522 479 418
Overhead lines ROW length, 0.4—110kV km 378,118 379,144 382,540
Conductors, 110 kV and more km 21,596 21,601 21,638
Conductors, 35 kV km 30,378 30,390 30,388
Conductors, 6–10 kV km 170,645 171,230 171,822
ВЛ 0,4 кВ км 155 498 155 923 158 692
Cable lines length, 0.4–110 kV km 13,846 14,259 17,156
Cables, 110 kV and above km 35 36 36
Cables, 35 kV km 20 26 26
Cables, 6–10 kV km 7,322 7,552 9,142
Cables, 0.4 kV km 6,469 6,645 7,952
Wear rate of electric grid facilities of IDGC of Centre, %

The level of deterioration at IDGC of Centre electric grid facilities belonging to IDGC of Centre did not change compared to the previous reporting period and amounted to 73.2% (as at December 31, 2015).

When calculating the assets’ deterioration level, the lifespan of the facilities is taken in consideration:

  • 25 years for substations and cable lines;
  • 35 years for overhead lines.
Reliability of fixed assets
Item Unit 2013 2014 2015 Deviation 2015/2014
Abs. %
Errors by employees pcs 13 8 1 –7 –87.5
Number of repeated trips of transformers of 35–110 kV pcs 257 199 102 –97 –48.7
Average time of power supply interruptions (for feeders of 6–110 kV) hours 3.18 1.53 1.72 0.19 12.4
Specific failure rate
Item Unit 2013 2014 2015 Deviation 2015/2014
Abs. %
Number of process violations pcs 29,265 20,797 16,736 –4,061 –19.5
Specific failure rate pcs per 1,000 units of equipment 18.1 12.4 9.7 –2.7 –21.8

The technical state of the Company’s assets and the quality of the management of power grid facilities influences the reliability of the performance of the power grid complex within the territory where IDGC of Centre’s operates, and the quality of the Company’s electricity transmission services.

To ensure the operational reliability of its power grid facilities, IDGC of Centre has implemented the following actions:

  • An Automated Production Assets Management System was deployed and is currently in use (hereinafter, the PAMS). More details on the Assets Management System are shown in the Company’s Annual Report for 2014.
  • Power capacities are renovated using innovative equipment.
  • A multi-year special reliability programme is implemented.
  • To minimise the consequences of equipment failures, all of the Company’s production facilities were insured.

In addition to ensuring efficient operations, the Company implements its Repair Programme and performs preparatory works for operation during the winter-autumn season.

Repair Programme

1,966.7 RUB mln Expenses for the implementation of the Repair Programme in 2015

IDGC of Centre’s Repair Programme was developed based on prospective (multi-year) schedules of power grid facilities repair, with consideration for equipment priorities, according to the technical state of the Company’s power grid facilities and the consequences of their failure for consumers. The Programme includes the repair of main and auxiliary equipment, including clearing the electricity transmission line right-of-way from trees and bushes, the repair and construction of buildings and motor transportation. The Programme’s planned indicators are approved on an annual basis by the Board of Directors, and are outlined in the Company’s Business Plan.

In 2015, several of the Programme’s activities were carried out in excess of target values due to the provision of additional activities completed for in preparation for the 2015-2016 autumn-winter season, including: the implementation of the supervisory authorities’ instructions, and the implementation of emergency and repair works. The Company’s specialists performed repairs on up to 18.5 km of power lines, 189 substations and on up to 4.8 transformer substations. The expenses for implementing the Programme amounted to over RUB 2 bn.

Results of implementing the Repair Programme in 2015
Indicator Unit Plan 2015 Actual 2015
Repairing the main equipment
Power lines 35–110 kV km 5,695.6 5,791.5
SS 35–110 kV pcs 189 189
Power lines 0.4–10 kV km 11,781.3 12,741.3
TS 6—10/0.4 kV pcs. 4,119 4,760
Right-of-way clearing
Conductors, 35–110 kV hectares 6,055.2 6,151.2
Conductors, 0.4–10 kV hectares 8,375.2 8,511.9
Costs
Total costs RUB mln 1,921.6 1,966.7
including main areas:
Power lines 35–110 kV RUB mln 112.2 118.2
SS 35–110 kV RUB mln 299.4 309.0
Grids 0.4–10 kV RUB mln 864.2 872.3
Right-of-way clearing, 0.4–110 kV RUB mln 227.0 231.5