Public attitude toward the use of fuel in Slovenian traffic

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2025

2024

2020

SLEDI NAM

/ EIONET Slovenija

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Smart and sustainable mobility - What do we think about it?

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Slovenians are not the most energy efficient

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Large majority of registered passenger cars are still powered by conventional fuels (gasoline and diesel). Although the total share of alternative-fuel vehicles tripled in the period from 2019 to 2025, it still remains very small. More optimism comes from the forecasts of respondents in the Energy Efficiency Survey of Slovenia – REUS 2025 regarding the future purchase of an alternative-fuel car, and from statistical data on newly registered passenger cars last year, when the share of newly registered alternative-fuel vehicles exceeded one-third of all newly registered vehicles for the first time.

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Figure RE06-1: Types of alternative fuels familiar to households, Slovenia, 2019-2025

Sources:

Survey on Energy Efficiency in Slovenia, Informa Echo d.o.o., 2025 (12. 11. 2025)

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	2019[%]	2022[%]	2025[%]
Electricity	81.78	83.89	86.06
Liquefied petroleum gas	66.85	56.81	56.95
Biodiesel	60.44	53.90	56.01
Hydrogen	37.88	34.80	44.62
Biogas	40.36	37.34	39.33
Compressed natural gas	38.16	28.65	30.70
Ethanol	25.40	21.47	25.56
other	1.01	0.42	1.01

Figure RE06-2: Type of fuel used by current cars in households, Slovenia, 2010-2025

Sources:

Survey on Energy Efficiency in Slovenia, Informa Echo d.o.o., 2025 (12. 11. 2025)

Note:

Until 2022, we have collected data for up to 5 cars per household. In 2025, this was changed to 3 cars per household.

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	Petrol[%]	Diesel[%]	alternative fuels[%]
2010	66.36	33.18	0.16
2011	62.58	37.04	0.14
2012	62.72	36.80	0.43
2015	57.95	40.91	0.98
2017	57.66	39.96	2.25
2019	56.73	37.95	2.70
2022	48.48	40.09	6.91
2025	52.47	36.16	10.17

Figure RE06-3: Passenger cars by type of fuel – all household vehicles, Slovenia, 2014-2025

Sources:

Survey on Energy Efficiency in Slovenia, Informa Echo d.o.o., 2025 (12. 11. 2025)

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	Petrol[%]	Diesel, biodiesel, oil, fuel oil[%]	Alternative power[%]	Liquefied petroleum gas (LPG)[%]	Compressed natural gas (CNG)[%]	Hybrid[%]	Electric[%]
2014	57.02	42.16	0.82	0.68	0.01	0.10	0.01
2015	55.12	43.91	0.97	0.80	0.01	0.13	0.03
2016	53.24	45.66	1.10	0.86	0.01	0.17	0.04
2017	51.44	47.30	1.26	0.89	0.02	0.27	0.07
2018	49.97	48.59	1.44	0.89	0.02	0.40	0.11
2019	48	50	1.63	0.85	0.02	0.58	0.17
2022	46.35	50.13	3.52	0.77	0.03	2.05	0.66
2025	45	49	6	1	0	4	1

Figure RE06-4: Average fuel consumption of households – all household vehicles, Slovenia, 2010-2025

Sources:

Survey on Energy Efficiency in Slovenia, Informa Echo d.o.o., 2025 (12. 11. 2025)

Note:

Until 2022, we have collected data for up to 5 cars per household. In 2025, this was changed to 3 cars per household.

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	Up to 6 l [%]	6.0-6.5 l [%]	6.6 - 7.5 l [%]	7.6 - 9.0 l [%]	above 9.0 l [%]	I don't know [%]
2010	13.89	26.39	29.17	18.75	9.03	2.78
2011	14.61	22.90	25.77	21.31	9.97	5.45
2012	17.21	22.67	29.40	18.90	8.38	3.45
2015	21.49	25.82	27.40	15.93	3.43	5.94
2017	25.86	23.30	22.80	12.42	3.26	12.36
2019	31	27.70	21.37	10.47	2.76	7
2022	32.33	25.27	21.99	9.77	3.18	7.46
2025	31.97	29.80	22.59	10.46	1.55	3.62

Figure RE06-5: Type of fuel used by the car foreseen for purchase, Slovenia, 2010-2025

Sources:

Survey on Energy Efficiency in Slovenia, Informa Echo d.o.o., 2025 (12. 11. 2025)

Note:

The analysis of the results must take into account that from 2015 the respondents could only choose one fuel option, whereas in past surveys (2010-2012) they could choose several options at a time.

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	Petrol[%]	Diesel, biodiesel, oil, fuel oil[%]	Alternative fuels (total)[%]	I don't know	Liquefied petroleum gas (LPG)[%]	Compressed natural gas (CNG)[%]	Electric[%]	Hydrogen[%]	Hybrid[%]	Other[%]
2010	32.08	58.49	6.83	3	0	1.89	0.94	0	0	4
2011	44.00	47.14	6.16	3.12	0	0.77	0	0	4.39	1
2012	32.42	56.21	8.35	3.35	2.59	1.10	1.57	0	2.40	0.69

2015	30.71	54.18	9.70	5.41	2.32	1.00	3.01	0	1.87	1.50
2017	41.02	33.11	14.41	11.49	2.64	1.57	3.76	0	4.94	1.50
2019	35.43	33.62	18.52	12.43	1.38	0	8.77	1.22	4.95	2.20
2022	31	28	33	8	2.41	0.51	16.00	1.42	10.79	2.30
2025	29.73	20.30	38.60	10.75	1.19	1.08	12.25	2.65	17.39	4.70

Figure RE06-6: Passenger cars by fuel: first registrations – new vehicles, Slovenia, 2014-2025

Sources:

Survey on Energy Efficiency in Slovenia, Informa Echo d.o.o., 2025 (12. 11. 2025)

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	Petrol[%]	Diesel, biodiesel, oil, fuel oil[%]	Alternative fuels[%]	Liquefied petroleum gas (LPG)[%]	Compressed natural gas (CNG)[%]	Hybrid[%]	Electric[%]
2014	44.22	55.03	0.75	0.43	0.09	0.21	0.02
2015	47.86	51.15	0.99	0.33	0.07	0.39	0.20
2016	48.43	50.21	1.36	0.45	0.01	0.66	0.23
2017	52.75	44.72	2.54	0.46	0.06	1.60	0.41
2018	64.74	32.04	3.22	0.20	0.02	2.31	0.70
2019	65	29.57	4.50	0.12	0.04	3.38	0.96
2022	56	18	26	1.40	0	19.40	4.90
2025	51	16	33	1.60	0	25.70	5.90

Figure RE06-7: Share of households with cars that consume less than 6.5 l of fuel per 100 km (by merged statistical regions), Slovenia, 2025

Sources:

Survey on Energy Efficiency in Slovenia, Informa Echo d.o.o., 2025 (12. 11. 2025)

Note:

Due to the small sample size the information for specific regions have been merged. The merged regions in the attached regions map are separated by a dotted line.

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	2019	2022
	2019	2022
pomurska, podravska	56 (N=195)	59 (N=193)
koroška, savinjska, zasavska	63 (N=178)	53 (N=174)
posavska, jugovzhodna Slovenija	51 (N=97)	58 (N=93)
osrednjeslovenska, gorenjska	62 (N=340)	57 (N=346)
primorsko-notranjska, obalno-kraška, goriška	56 (N=102)	66 (N=102)

Methodology

Other sources and literature

Evropski parlament, 2025: Uredba (EU) 2023/1804 Evropskega parlamenta in Sveta z dne 13. septembra 2023 o vzpostavitvi infrastrukture za alternativna goriva ter razveljavitvi Direktive 2014/94/EU, URL: https://eur-lex.europa.eu/eli/reg/2023/1804/oj (12.11.2025).

SURS, 2025: Osebni avtomobili, avtobusi, miniavtobusi in tovorna vozila konec leta (31. 12.) ter prve registracije teh vozil po vrsti vozila ter vrsti pogona in goriva (Podatkovna baza: SI-STAT, ID tabele: 2222109S), Ministrstvo za infrastrukturo in prostor, Statistični urad Republike Slovenije (2014-2025), URL:https://pxweb.stat.si/SiStatData/pxweb/sl/Data/Data/2222109S.px/ (12.11.2025).