Annual report - HSE

2.8 Purchasing and suppliers
2.8.1 Electricity
Synergy
To maximise efficiency, HSE endeavours to take advantage of the synergies of production
units within the Group. Because the operating and cost-related characteristics of individual
production plants differ, we strive to achieve cost-effective production of electricity
through appropriate production scheduling. As electricity market prices fluctuate over
time, rational dispatching of production units, while observing technical criteria, is all the
more important in such unfavourable circumstances.
The HSE Group’s electricity production units in 2012
Dravograd Vuzenica Vuhred Ožbalt Fala MB otok Zlatoličje Formin Small HPPs TOTAL
DEM No. of turbines 3 3 3 3 3 3 2 2 2
Net output MW 26.2 55.6 72.3 73.2 58.0 60.0 126.0 116.0 1.3 588.6
Rated generator MVA 36.0 78.0 90.0 90.0 74.0 78.0 170.0 148.0 2.9 766.9
capacity
Gross head m 8.9 13.7 17.4 17.4 14.6 14.2 33.0 29.0 148.2
Rated flow Qi m 3 /s 405.0 550.0 550.0 550.0 505.0 550.0 463.0 500.0
Boštanj Arto-Blanca Krško TOTAL
HESS No. of turbines 3 3 3
Net output MW 31.5 38.0 39.0 108.5
Rated generator MVA 43.5 49.5 49.5 142.5
capacity
Gross head m 7.7 9.1 9.2 26.0
Rated flow Qi m 3 /s 500.0 500.0 500.0
Doblar I. Doblar II. Plave I. Plave II. Solkan PSP Avče Zadlaščica Small HPPs TOTAL
SENG No. of turbines 3 1 2 1 3 1 2 26
Net output MW 30.0 40.0 15.0 19.0 32.0 180.0 8.0 11.4 335.4
Rated generator MVA 48.0 50.0 22.0 23.0 39.0 195.0 10.0 15.6 402.6
capacity
Gross head m 47.2 48.5 27.5 27.5 23.0 521.0 440.0 1,134.7
Rated flow Qi m 3 /s 90.0 105.0 75.0 105.0 180.0 40.0 2.2
TEŠ PT 51 PT 52 Unit 3 Unit 4 Unit 5 TOTAL
Net output MW 42.0 42.0 50.0 248.0 305.0 687.0
Rated generator capacity MVA 56.3 56.3 94.0 324.0 377.0 907.5
TET PB I. PB II. Unit 4 TOTAL
Net output MW 29.0 29.0 110.0 168.0
Rated generator capacity MVA 39.7 39.7 156.0 235.4
Annual Report HSE 2012
2 Business Report
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