Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Benefits and problems of rail electrification based on Harvey (1977), Amos and Galbraith (1985), Krastev et al_ (2016), Zhan (2024)_
| Impact | Cause | |
|---|---|---|
| Benefits of electrification for | railway system | - reduced operating costs for carriers (easier maintenance of rolling stock and less susceptibility to breakdowns) |
| carrier | - lower energy consumption (higher energy efficiency) | |
| environment | - reduction of air pollutant emissions (particulate matter, greenhouse gases and others) and noise pollution | |
| customers | - improving service quality (travel time, travel comfort) | |
| Challenges and problems | high initial capital costs | - construction of overhead line installations and power substations |
| infrastructure maintenance costs | - the need for regular maintenance of equipment such as transformers and converters | |
| dependence on electricity supply | - the need to ensure continuity of electricity supply for traction purposes | |
| tailored to transport requirements | - electrification is economically justifiable on high-traffic routes | |
The electrified railway network in Poland, according to network managers, in 2024 (based on Railway data by Office Rail Transport, Raport Roczny 2024, 2025ab, Jastrzębska Spółka Kolejowa S_A_, PMT Linie Kolejowe Sp_ z o_o_, Infra Silesia S_A_)_
| Railway network operator | Length (km) | Percentage of network |
|---|---|---|
| Total | 12,251 | 62.3 |
| PKP Polskie Linie Kolejowe S.A. | 12,150 | 64.2 |
| Warszawska Kolej Dojazdowa Sp. z o.o.* | 34.5 | 91.6 |
| PKP Szybka Kolej Miejska w Trójmieście Sp. z o.o.* | 32.4 | 100.0 |
| Pomorska Kolej Metropolitalna S.A. | 18.3 | 100.0 |
| Jastrzębska Spółka Kolejowa Sp. z o.o. | 10.2 | 25.1 |
| PMT Linie Kolejowe Sp. z o.o. | 1.8 | 4.5 |
| Infra Silesia S.A. | 1.7 | 5.9 |
| Other managers | 2.1 | no data |
The railway electrification level and power systems in Europe in 2023 based on Eurostat database and Open Rail Map_
| Traction power systems | Electrification level of railway network in 2023 | |||
|---|---|---|---|---|
| 75.0–100% | 50.0–74.9% | 25.0–49.9% | 1.0–24.9% | |
| 1.5 kV DC | – | – | – | Irelandb |
| 3 kV DC | – | Poland, Slovenia | – | Latviab, Estoniab |
| 15 kV. | Liechtenstein, Switzerland, Swedena | Austriaa, Germanya | – | – |
| 25 kV 50 Hz AC | Luxembourg | Bulgaria, Croatia, Finlandab, Montenegro, Bosnia and Herzegovina | Hungary, Greece, Croatia, Romania, Serbia, North Macedonia | Lithuaniab |
| 3 kV DC | Belgiuma | Italya, Portugalb, Spainab, Ukraineb | Slovakia, Czechia, | – |
| 1.5/1.7 kV DC | – | Netherlandsa, Francea | Denmarka | – |