Strategic planning and decision making, nonetheless making energy policies and strategies, is very extensive and has to follow multiple and often contradictory objectives. During the preparation of the new Slovenian National Energy Programme proposal complete update of the technology and sector oriented bottom up model REES-SLO (Reference Energy and Environmental System of Slovenia) has been done. Within the new model the comparison and assessment of various strategies on the demand and supply side with calculations of long term energy and emission balances and economic evaluation has been enabled. A linear network model of the national energy system for decision support was developed in MESAP (Modular Energy System Analysis and Planning) environment. MESAP open structure was used to build the model addressing the most relevant questions. During the model development, special attention was given to the aggregation of the data in accordance with statistical standards for data classification, also fully compatible with international reporting standards. Economic activities are disaggregated by branches, manufacturing industry and service sectors are further disaggregated on the sub-branch level. Parallel competitive technologies have been included in the model. This was done where fuel switching is expected or where considerable energy efficiency improvements may differ significantly by strategies. Parallel modelling enabled accurate estimation of induced costs and environmental impacts. Technology - oriented model REES-SLO was used in the energy policy development process as a framework for consistent and equal approach to the identification of instruments, measures and impacts in various energy sectors and subsectors.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 25501223Energy development is facing major challenges: transition to the low carbon society, enabling competitiveness despite growth of international energy prices, assuring energy security by sovereign and interconnected energy systems and building capacities to deal with changing global circumstances. Impact assessment to support decisions process for National energy programme comprises different energy strategies options and expected responses of actors. Scenarios are compared considering main energy policy objectives: (1) environmental sustainability, (2) energy security and (3) improvement of competitiveness of the society and economy, with indicators supporting trade-off analysis. The paper presents procedure and results of the analysis: a comparative assessment of scenarios with an emphasis on climate-energy package targets, reliability and security of supply indicators, particularly indicators related to the power sector, and the effects on the competitiveness of the Slovenian economy. In the national energy program (NEP), an intensive strategy of promoting sustainable and local services (RUE, RES, CHP and local energy) was selected and proposed. The priorities of this strategy, compared to other analyzed reference strategies are: lower emissions and greater robustness to meet the objectives of the climate-energy package – particularly the 25-percent share of renewables in gross final energy consumption - and in the Kyoto Protocol, less energy consumption and slower growth of electricity consumption, a higher share of RES in 2030, lower net imports and lower energy dependency, greater improvement of energy intensity, better (improved) all other indicators of energy security, greater the reduction of GHG emissions relative to a reference scenario. Weaknesses of the intensive strategy are slightly higher emissions of nitrogen oxides and particulate matter, due to greater use of wood biomass. Intensive strategy represents also a better development basis for long-term transition to low carbon society.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 25042983U-238, Th-230, Ra-226 and Pb-210 activity concentrations were determined in soil and grass samples collected from sites at the uranium mill tailings waste pile, which lies near the former uranium mine at Žirovski vrh in Slovenia. Soil-to-plant transfer factors were determined and the potential use of grass as a monitor of radionuclide migration from the waste pile was evaluated. It was found that grass was not suitable for monitoring Th-230 and Pb-210 migration but has potential in predicting U-238 and Ra-226 migration. Soil-to-plant transfer factors for grass were in the range from 0.0014 – 0.015 kg/kg dry mass for U-238, 0.0039 – 0.012 kg/kg dry mass for Th-230, 0.035 – 0.46 kg/kg dry mass for Ra-226 and 0.098 to 1.52 kg/kg dry mass for Pb-210.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 25525799