Abstract
In this paper, an analysis of issues related to development of national electric power network infrastructure in aspect of electric energy security is performed. Profile of network infrastructure in area of transmission and distribution is performed. Threats for electric energy supply security connected with transmission and distribution infrastructure are discussed. Both transmission and distribution electric power network are adapted for presently occurred typical conditions of electric energy demand and realization of internal tasks in normal conditions, but can create potential threat for electric energy supply security. In the context of forecasted increase of electric energy demand, inadequate power in National Electric Power System (NEPS) in domestic sources and available through intersystem connections, uneven location of sources and consumers at shortage of proper network transmission capacities, necessity of improvement of quality and electric energy supply reliability to final consumers and intensive development of renewable energy sources, present network infrastructure in area of transmission and distribution will be insufficient. Development of 400 and 220 kV transmission network, 110 kV distribution network especially in area of cities, MV distribution network especially in rural areas and realization of investments for improvement of export-import possibilities of NEPS will be necessary. Challenges for transmission and distribution system operators in area of network development are performed. They concern mainly investment sphere and area connected with preparation and construction of network investments.
Highlights
The electric power network infrastructure is the link between generation sources and customers and includes: 400 and 220 kV transmission grid, 110 kV distribution grid, MV distribution grid (6, 10, 15, 20 and 30 kV) and low voltage (0.4 kV) distribution grid
It includes both overhead and cable lines as well as power substations. The former is responsible for the transmission of electricity, and is supervised by the transmission system operator (TSO) – the company Polskie Sieci
The current transmission grid infrastructure will prove insufficient, and ensuring the security of the electricity supply will require the implementation of investments consisting in the expansion and modernization of the transmission grid, the 110 kV distribution grid in the area of large urban agglomerations as well as investments aimed at increasing export and import capacities of the National Electric Power System (NEPS) [5].The necessity to expand and modernize the grid infrastructure is connected with the intensive development of renewable energy sources (RES), the planned development of nuclear power and the need to build modern, environmentally friendly, conventional generation sources [5]
Summary
The electric power network infrastructure is the link between generation sources and customers (consumers of electricity) and includes: 400 and 220 kV transmission grid, 110 kV distribution grid, MV distribution grid (6, 10, 15, 20 and 30 kV) and low voltage (0.4 kV) distribution grid. It includes both overhead and cable lines as well as power substations. Due to its location in the National Electric Power System (NEPS) and the function it plays therein (transmission, distribution), the national electric power network plays a key role in the NEPS and is of strategic importance for its operation. The aim of the paper is to draw attention to risks and challenges faced by the national transmission and distribution network in aspect of electric energy supply security
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
