The decrease in SO₂ emissions from transport is significantly influenced by the tightening of legislation governing the concentration of sulphur in liquid fuels (since 2009, it has been limited to 10 mg/kg for both petrol and diesel). The limit value of concentration of sulphur in fuels used in road transport in 2015 was not exceeded in Slovenia or in the EU-28; the same applies to air and maritime transport.

In 2014, an important change in the structure of electricity production occurred. For the first time since 1994, most electricity was no longer produced from nuclear energy but from RES, while the third place was taken by solid fuels. The share of production from gaseous fuels was small. The share of electricity production from domestic sources was 93%, which was above the target share set in the Resolution on the National Energy Programme. Total production of electricity in Slovenia exceeded gross consumption by 21%.

It is estimated that in Slovenia, more than EUR 324 million of subsidies were allocated in the energy sector in 2014 (EUR 212 million expressed in constant prices with 2000 as a reference year). In 2014, subsidies for energy generation from fossil fuels, which have the most harmful impact on the environment, and for the use of fossil fuels, represented 37% of all subsidies in the energy sector, while in 2005, the share of such subsidies was 74%.

The limit value for environmental noise for playgrounds (55dB(A)) determined by the WHO was exceeded at the most exposed facade at 12 primary schools. However none of 34 kindergartens and 22 primary schools was exposed to excess noise limit at all four facades. There were 4,097 pupils in 12 schools and 2,909 children in 24 kindergartens where the high noise levels at most exposed facades were determined in the school year 2013/2014.