the catenary extended a year later to Kemeri and in 1966 to Tukums, completing the electrification of the entire railway line. Riga–Jelgava Railway – Electrificted in 1972. Zemitāni–Skulte Railway – In 1957 ended electrification from Riga to Mangaļi Station, then in 1971 extended to Zvejniekciems Station and then more work was completed in 1991 to Skulte Station. Riga–Daugavpils Railway – In 1959 electrficted part Riga – Ogre. In 1961 extended traction network to Pārogre Station, and them in 1968 to Jumprava Station and them electrification ended to Aizkraukle Station. The electrification schedule for the following railway lines was planned for 2015–2020: Aizkraukle – Krustpils Krustpils – Rezekne Krustpils – Daugavpils Krustpils – Jełgawa Jełgawa – Tukums 2 Tukums 2 – Ventspils The project was not implemented according to the schedule, and in March 2020 it was decided to limit it for financial reasons. By 2040, electrification of the entire railway network in the country is planned, along with a voltage change to 25 kV AC. Lithuania On 29 December 1975 put into use traction network on Vilnius–Kaunas Railway and in 1979 electrficted line Nowe Wilno – Kaunas i Lentvaris – Trakė. Moldova/Transnistria Moldova is one of three European countries without any electrified railway line. Russia After the Soviet Union fell apart in 1991, railway traffic in Russia sharply declined and new major electrification projects were not undertaken but work continued on some unfinished projects. The line to Murmansk was completed in 2005. Electrification of the last segment of the Trans-Siberian Railway from Khabarovsk to Vladivostok was completed in 2002. By 2008, the tonne-kilometres hauled by electric trains in Russia had increased to about 85% of rail freight. Tajikistan Tajikistan does not have any electrified railway line. Turkmenistan Turkmenistan does not currently have any electrified railway line. There are plans to electrify the line Turkmenabat – Turkmenbashi. Ukraine In summer 2021 the electrification of the Kovel – Izov railway line began which was scheduled to end on June 1 next year. Works are stoped in 24 February due to Russian invasion. In March work on electrification was resumed, which was completed on June 15. By 2024, Ukrainian railways planed to electrify 500 kilometers of railway lines. Energy-efficiency Compared to diesels Partly due to inefficient generation of electricity in the USSR (only 20.8% thermal efficiency in 1950 vs. 36.2% in 1975), in 1950 diesel traction was about twice as energy efficient as