Renewable energy sources (RES) are traditionally one of the strategic sources of energy in Slovenia due to very limited domestic energy resources and relatively high import dependency. Wood biomass is the most dominant RES, followed by hydro energy and in much smaller volume liquid RES, geothermal energy, biogas and solar energy. With significant increase of energy efficiency, RES could take larger and larger role in long-term energy supply in Slovenia, based on existing natural resources and own RES technology development. This is a huge development challenge for the whole society with several positive effects on all branches of economy but requests a systematic approach and good support for the quality implementation. The key priority for RES electricity generation is exploration of all environmentally acceptable hydro energy potentials, where domestic technology and almost complete own implementation could be provided. By decrease of technology costs, solar potential is growing fast and would significantly increase with expected storage technology development and breakthrough linked also to the development of e-mobility. Wood biomass gasification is a huge potential for high efficient utilisation of domestic wood biomass resources in high efficient cogeneration in district heating systems, industry and services. District heating and cooling (DHC) systems will enable a larger volume of waste heat utilisation in industry and utilisation of different RES (wood biomass, geothermal energy, solar thermal, etc.). Technology solutions for RES utilisation for high temperature heat supply in industry are still a huge challenge for the future. Following recent technology development, electricity and hydrogen that could be generated from RES will replace liquid fuels in transport, whereas advanced third generation biofuels could be an alternative for the air transport.
F.30 Professional assessment of the situation
COBISS.SI-ID: 29863719The methodology for determination of support for electricity produced from renewable energy sources and in cogeneration with high efficiency, gives methodological framework for the calculation of reference costs of electricity (RCE) and support for the production unit (PU) for the production of electricity from renewable energy sources (RES) and cogeneration with high efficiency (CHP), joining the support scheme since 2016. Support scheme includes a wide array of different technologies of PU, where a huge technological progress has been recently seen, which is reflected in increasing of market offer and rapid price changes of technologies. Together with the highly dynamical situation on the market of electricity and other types of energy, therefore the support scheme works in an extremely dynamical environment, which for high quality and cost-effective implementation, requires a regular monitoring of the scheme operation and the rapid correction of imperfection with the aim of achieving the set goals of RES and EE with minimal means. The methodology for determining RCE is based on a determination of the total annual operating costs of RES and CHP production units. For calculation of RCE the technological and operational parameters, variables, and cost categories and revenues will be taken in consideration.
F.01 Acquisition of new practical knowledge, information and skills
COBISS.SI-ID: 30230055Carbon footprint of mechanized orchard production in Slovenia was determined. An analysis of the carbon footprint in the case of conventional, integrated and organic fruit production for the three sizes of orchard farms (small, medium and large) and five fruit productions (apple, pear, peach, apricot and olive) was made. In all mechanized working operations in fruit production, energy of mineral diesel fuel is used to power tractors aggregated with implements. The analysis covered the equivalent CO2 emissions from the consumption of mineral diesel fuel to power tractors aggregated with implements (direct energy consumed in the process of orchard production). In addition to the CO2 emissions from the mineral diesel fuel used in the fruit production, also were covered greenhouse gas emissions resulting from the use of organic and mineral fertilizers in the production and converted to equivalent CO2. In the case of conventional production in orchards, provided is use of mineral fertilizers, in integrated orchard production combination of mineral and organic fertilizers and in organic orchard production only usage of organic fertilizers. The sum of equivalent CO2 emissions resulting from using mineral diesel fuel for mechanized working operations and CO2 equivalent emissions from fertilizers used in the orchard production process, results in the total emissions of CO2equ./t of fruit produced. It has been found that emissions of CO2equ. /t of fruit, are the lowest in integrated, higher in conventional and highest in the organic fruit production.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 4972136Achievement presents mentorship of the programme group leader to a young researcher that successfully finished a doctoral work and consequently defended her doctoral dissertation at the Jožef Stefan International Postgraduate School. In her work, the candidate studied influence of the initial part of nuclear fuel cycle onto vegetables, potentially contaminated by an uranium mine and mill plant operation.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 287885056Road traffic contributes a major share of emissions and energy consumption. A shift to other transportation modes is often seen as an approach to combat the emissions. A shift is not always possible in some regions where other transportation modes are not sufficiently developed due to low population density or other reasons. This paper discusses possibility of combating emissions and energy consumption by optimization of traffic management. Traffic microsimulation models were used to obtain vehicle trajectories for calculation of emissions. It has been shown that traffic volume and management have significant impact on vehicle emissions. A possibility of application of an emissions model and of vehicle specific power (VSP) model was used in a case study. The VSP has several benefits over conventional emission models in cases where vehicles are powered by alternative drive-trains.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 2772835