In 2019, renewables accounted for 16.9% of total energy consumption. The share is 0.2% higher in comparison to the previous year, only because of lower total energy consumption.

In 2012, the share of electricity generated from renewable sources in gross electricity consumption was 29.5%, which was 4.1 percentage points below the target value set for 2010. The share increased in comparison to the previous year. This is largely a consequence of higher generation of electricity from renewable sources, particularly due to higher river discharges, as gross electricity consumption was almost the same as a year earlier. In 2012, electricity generation from hydropower represented 90% of total electricity generated from RES, while its share has been in gradual decline.

Energy prices increased in the period 2008-2012. In the same period, the most raised the price of the natural gas industry (almost 53 %), followed by price for natural gases for households by 38%, the price of heating oil, for household electricity, the price of petrol NMB 95, diesel D2, at least has raised the price of electricity for industry, for less than 6%.

In recent years, energy taxes have increased mainly due to higher excise duties and taxes. The share of tax in the price of energy in industry has reached the same level as in the price paid by households. In Slovenia, taxes on transport fuels and electricity were below the EU-27 average, while taxes on natural gas in industry and households were above that average, exceeded only by Austria, Italy, Denmark and Sweden. 

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%.

In Slovenia, in 2020 the external costs estimate of electricity production ranges from 0.8 - 2.8 € c2000 / kWh. Despite growing environmental awareness, the price of electricity still does not reflect all external costs. Due to incorrect price signals, which are the result of the current situation on the electricity markets, energy sources in Slovenia remain suboptimally used.

In 2021, taking into account only the production of energy from RES in Slovenia, Slovenia achieved a 24.6% share of RES in gross final energy consumption, which is 4.8 percentage points more than in 2005. To achieve a binding 25% national target share of RES under the Directive 2009/28/EC, Slovenia purchased the missing production from RES. The increase in the share of RES in 2021 is primarily the result of an increase in the use of RES in the heating and cooling sector. The share in electricity production still lags behind the planned development significantly.

Slovenia's import dependence is not decreasing and is about 50%. In 2020 it was exceptionally lower than in previous years due to the epidemiological situation. The most problematic is the import dependency on gaseous fuels, as Slovenia is heavily dependent on fuel imports from Russia.

In Slovenia, final users have at their disposal only around 73% of primary energy. In 2015 the rate reached its highest level. The efficiency of electricity and heat production is largely influenced by this share in far.

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%.