Design of a Sure Transition Scenario on Energy Mix and Consumption Structure for Japan to Reduce CO2 Emission by more than 90% by Year 2050

2020 ◽  
Vol 46 (4) ◽  
pp. 91-107
Author(s):  
Manabu Utagawa ◽  
Masayuki Horio
Author(s):  
Osamah A. Alsayegh ◽  
Fotouh A. Al-Ragom

With population of 3.9 million and area of 17,818 km2, the State of Kuwait holds about 8% and 1% of the world proven oil and gas reserves, respectively. Its total primary energy (oil and gas) production is about 3.5 million barrel oil equivalent per day (Mboe/d). Yet, Kuwait is facing energy challenges as a result of high and rapid growth of domestic energy consumption that has reached 18% of its total primary energy production. Therefore, adopting policies to transform the present energy system to a sustainable system has become indispensable national requirement. In this paper, a transition scenario for Kuwait’s energy system is proposed. The transition scenario addresses both the supply and demand sides through diversifying primary energy mix and energy demand management measures. The energy mix scenario is the optimum outcome of MARKAL-TIMES model of the energy system of Kuwait. Modeling results show that meeting 10% of the country’s energy demand through the exploitation of solar and wind energies by 2030 is the technical and economical optimal scenario. While the demand management measures are based on pilot energy conservation and efficiency study that shows energy saving could reach 24% and leading to savings of 4% reduction in power installation capacity. Utilization of efficient water desalination systems can reduce national energy consumption by 5%. The paper concludes with policy implications that are essential to launch the transformation toward sustainability.


Author(s):  
José Ángel Gimeno ◽  
Eva Llera Sastresa ◽  
Sabina Scarpellini

Currently, self-consumption and distributed energy facilities are considered as viable and sustainable solutions in the energy transition scenario within the European Union. In a low carbon society, the exploitation of renewables for self-consumption is closely tied to the energy market at the territorial level, in search of a compromise between competitiveness and the sustainable exploitation of resources. Investments in these facilities are highly sensitive to the existence of favourable conditions at the territorial level, and the energy policies adopted in the European Union have contributed positively to the distributed renewables development and the reduction of their costs in the last decade. However, the number of the installed facilities is uneven in the European Countries and those factors that are more determinant for the investments in self-consumption are still under investigation. In this scenario, this paper presents the main results obtained through the analysis of the determinants in self-consumption investments from a case study in Spain, where the penetration of this type of facilities is being less relevant than in other countries. As a novelty of this study, the main influential drivers and barriers in self-consumption are classified and analysed from the installers' perspective. On the basis of the information obtained from the installers involved in the installation of these facilities, incentives and barriers are analysed within the existing legal framework and the potential specific lines of the promotion for the effective deployment of self-consumption in an energy transition scenario.


2017 ◽  
Vol 19 (2) ◽  
pp. 73-122
Author(s):  
Kun-oh Jung ◽  
Jaepil Kim ◽  
Eungsoon Lim

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 878 ◽  
Author(s):  
Oliwia Pietrzak ◽  
Krystian Pietrzak

This paper focuses on effects of implementing zero-emission buses in public transport fleets in urban areas in the context of electromobility assumptions. It fills the literature gap in the area of research on the impact of the energy mix of a given country on the issues raised in this article. The main purpose of this paper is to identify and analyse economic effects of implementing zero-emission buses in public transport in cities. The research area was the city of Szczecin, Poland. The research study was completed using the following research methods: literature review, document analysis (legal acts and internal documents), case study, ratio analysis, and comparative analysis of selected variants (investment variant and base variant). The conducted research study has shown that economic benefits resulting from implementing zero-emission buses in an urban transport fleet are limited by the current energy mix structure of the given country. An unfavourable energy mix may lead to increased emissions of SO2 and CO2 resulting from operation of this kind of vehicle. Therefore, achieving full effects in the field of electromobility in the given country depends on taking concurrent actions in order to diversify the power generation sources, and in particular on increasing the share of Renewable Energy Sources (RES).


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