Hungary vs Slovenia: Electricity Compared
Hungary generated 40.2 TWh of electricity in 2025 and Slovenia 14.8 TWh, according to Ember. Nuclear was the largest source in both, at 40.1% in Hungary and 39.4% in Slovenia. Each kWh generated emitted 163 gCO2/kWh in Hungary and 182 gCO2/kWh in Slovenia. These are Ember annual statistics for 2025, compiled from national sources; they are not real time.
Why this comparison: neighbours by land border or interconnector.
Key Facts
- Hydro supplied 27.5% of Slovenia's electricity in 2025, against 0.6% in Hungary.
- Electricity demand rose 5% in Hungary between 2020 and 2025, while it fell 4% in Slovenia.
- Low carbon sources supplied 75.3% of Hungary's electricity in 2025 and 79.0% of Slovenia's.
- Electricity demand in 2025 was 49.2 TWh in Hungary and 14.3 TWh in Slovenia.
Key Figures, 2025
Ember annual statistics| Measure | Hungary | Slovenia |
|---|---|---|
| Total generation | 40.2 TWh | 14.8 TWh |
| Electricity demand | 49.2 TWh | 14.3 TWh |
| Demand per person | 5.11 MWh | 6.80 MWh |
| Carbon intensity | 163 gCO2/kWh | 182 gCO2/kWh |
| Power sector emissions | 6.53 MtCO2 | 2.70 MtCO2 |
| Low carbon share | 75.3% | 79.0% |
| Largest source | Nuclear 40.1% | Nuclear 39.4% |
Generation Mix, 2025
Share of generation| Source | Hungary | Slovenia |
|---|---|---|
| Nuclear | 40.1% | 39.4% |
| Hydro | 0.6% | 27.5% |
| Solar | 27.1% | 10.2% |
| Gas | 20.3% | 6.4% |
| Coal | 3.4% | 14.7% |
| Bioenergy | 6.0% | 1.9% |
| Wind | 1.5% | 0.1% |
| Other fossil | 1.0% | 0.0% |
| Other renewables | 0.1% | 0.0% |
Carbon Intensity, 1990 to 2025
Ember annual statisticsAnnual statistics through 2025, gCO2/kWh
| Year | Hungary | Slovenia |
|---|---|---|
| 1990 | 415 gCO2/kWh | 376 gCO2/kWh |
| 1991 | 417 gCO2/kWh | 325 gCO2/kWh |
| 1992 | 443 gCO2/kWh | 406 gCO2/kWh |
| 1993 | 454 gCO2/kWh | 419 gCO2/kWh |
| 1994 | 445 gCO2/kWh | 384 gCO2/kWh |
| 1995 | 450 gCO2/kWh | 382 gCO2/kWh |
| 1996 | 452 gCO2/kWh | 367 gCO2/kWh |
| 1997 | 459 gCO2/kWh | 387 gCO2/kWh |
| 1998 | 463 gCO2/kWh | 384 gCO2/kWh |
| 1999 | 466 gCO2/kWh | 362 gCO2/kWh |
| 2000 | 451 gCO2/kWh | 362 gCO2/kWh |
| 2001 | 439 gCO2/kWh | 366 gCO2/kWh |
| 2002 | 432 gCO2/kWh | 386 gCO2/kWh |
| 2003 | 469 gCO2/kWh | 394 gCO2/kWh |
| 2004 | 431 gCO2/kWh | 364 gCO2/kWh |
| 2005 | 383 gCO2/kWh | 371 gCO2/kWh |
| 2006 | 390 gCO2/kWh | 383 gCO2/kWh |
| 2007 | 386 gCO2/kWh | 389 gCO2/kWh |
| 2008 | 376 gCO2/kWh | 351 gCO2/kWh |
| 2009 | 344 gCO2/kWh | 341 gCO2/kWh |
| 2010 | 341 gCO2/kWh | 353 gCO2/kWh |
| 2011 | 341 gCO2/kWh | 360 gCO2/kWh |
| 2012 | 333 gCO2/kWh | 359 gCO2/kWh |
| 2013 | 318 gCO2/kWh | 336 gCO2/kWh |
| 2014 | 300 gCO2/kWh | 245 gCO2/kWh |
| 2015 | 298 gCO2/kWh | 317 gCO2/kWh |
| 2016 | 300 gCO2/kWh | 326 gCO2/kWh |
| 2017 | 290 gCO2/kWh | 319 gCO2/kWh |
| 2018 | 284 gCO2/kWh | 305 gCO2/kWh |
| 2019 | 266 gCO2/kWh | 299 gCO2/kWh |
| 2020 | 257 gCO2/kWh | 277 gCO2/kWh |
| 2021 | 239 gCO2/kWh | 269 gCO2/kWh |
| 2022 | 229 gCO2/kWh | 258 gCO2/kWh |
| 2023 | 196 gCO2/kWh | 224 gCO2/kWh |
| 2024 | 184 gCO2/kWh | 230 gCO2/kWh |
| 2025 | 163 gCO2/kWh | 182 gCO2/kWh |
Demand per Person, 1990 to 2025
Ember annual statisticsAnnual statistics through 2025, MWh
| Year | Hungary | Slovenia |
|---|---|---|
| 1990 | n/a | n/a |
| 1991 | n/a | n/a |
| 1992 | n/a | n/a |
| 1993 | n/a | n/a |
| 1994 | n/a | n/a |
| 1995 | n/a | n/a |
| 1996 | n/a | n/a |
| 1997 | n/a | n/a |
| 1998 | n/a | n/a |
| 1999 | n/a | n/a |
| 2000 | 3.79 MWh | 6.19 MWh |
| 2001 | 3.89 MWh | 6.39 MWh |
| 2002 | 3.99 MWh | 6.76 MWh |
| 2003 | 4.06 MWh | 7.02 MWh |
| 2004 | 4.08 MWh | 7.28 MWh |
| 2005 | 4.17 MWh | 7.41 MWh |
| 2006 | 4.29 MWh | 7.56 MWh |
| 2007 | 4.38 MWh | 7.58 MWh |
| 2008 | 4.39 MWh | 7.31 MWh |
| 2009 | 4.14 MWh | 6.55 MWh |
| 2010 | 4.27 MWh | 6.92 MWh |
| 2011 | 4.29 MWh | 7.10 MWh |
| 2012 | 4.30 MWh | 7.07 MWh |
| 2013 | 4.26 MWh | 7.06 MWh |
| 2014 | 4.34 MWh | 7.00 MWh |
| 2015 | 4.47 MWh | 7.16 MWh |
| 2016 | 4.55 MWh | 7.30 MWh |
| 2017 | 4.68 MWh | 7.53 MWh |
| 2018 | 4.75 MWh | 7.55 MWh |
| 2019 | 4.80 MWh | 7.47 MWh |
| 2020 | 4.78 MWh | 7.08 MWh |
| 2021 | 5.03 MWh | 7.25 MWh |
| 2022 | 4.95 MWh | 7.00 MWh |
| 2023 | 4.82 MWh | 6.63 MWh |
| 2024 | 5.04 MWh | 6.75 MWh |
| 2025 | 5.11 MWh | 6.80 MWh |
Hungary history · Slovenia history
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025.