Pursuant to Article 116 of the Energy Law

parts of distribution grid. 
3.3.1.17. The data necessary for the transmission system development planning must be 
changed if it is proved in practice that originally reported values do not match reality. In such 
cases, the JSC EMS will request from the transmission system users to correct the data, and if 
the user does not provide satisfactory correction, JSC EMS shall make changes of disputed 
data according to recorded operational events. 
3.3.1.18. In case the data relevant for the transmission system planning change, the 
transmission system user informs JSC EMS about these changes within one month after the 
change of data. The user indicates the time when the change occurred or will occur, or if the 
change is temporary, start/end time of change. 

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24 
3.3.1.19. JSC EMS is obliged to give draft of the Transmission System Development Plan to 
distribution system operators for review until September 1 and implement harmonisation with 
the transmission system development plans until September 15. If the harmonisation cannot 
be fully done, necessary data that include the list of facilities for which the harmonisation was 
not done and reasons for non-compliance of the given facilities shall be included in the 
Transmission System Development Plan. 
3.3.1.20. JSC EMS prepares Transmission System Development Plan by the end of 
September in the year preceding the first year to which the concrete ten-year plan applies to, 
and publishes it after obtaining the consent of the EARS. 
3.3.2.
 
C
ONTENT OF THE 
T
RANSMISSION 
S
YSTEM 
D
EVELOPMENT 
P
LAN
 
3.3.2.1. Introduction 
3.3.2.1.1. Transmission System Development Plan contains: 
- Planning assumptions (foreseen consumption by year and peak power by years, 
distribution of consumption according to consumption nodes, planned structure 
of generation capacities); 
- Results of analysis of the condition of facilities, equipment and operation of the 
transmission system; 
- Optimal variant of the transmission system development in the planning period 
which is determined on the basis of technical and economic analyses; 
- Inventory of transmission facilities by year and the priorities that need to be 
constructed, reconstructed or upgraded; 
- Development plan of supporting infrastructure for the transmission system 
(telecommunications system, data management system, power metering system, 
etc.); 
- Examining adequacy of generation; 
- Examining the possibility of frequency and power interchange control; 
- Analysing the possibility of voltage control; 
- Stability analysis; 
- Analysis of short circuit currents.