scholarly journals A Multi-Objective Optimization Model for a Non-Traditional Energy System in Beijing under Climate Change Conditions

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1692 ◽  
Author(s):  
Xiaowen Ding ◽  
Lin Liu ◽  
Guohe Huang ◽  
Ye Xu ◽  
Junhong Guo
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Supply And Demand ◽  
Energy System ◽  
Renewable Energies ◽  
Energy Structure ◽  
Electricity Supply ◽  
Multi Objective Optimization ◽  
Structure Adjustment ◽  
The Impact

In recent years, with the increase of annual average temperature and the decrease of annual precipitation in Beijing, the fragility of Beijing’s energy system has become more and more prominent, especially the balance of electricity supply and demand in extreme weather. In the context of unstable supply of new and renewable energies, it is imperative to strengthen the ability of the energy system to adapt to climate change. This study first simulated climate change in Beijing based on regional climate data. At the same time, the Statistical Program for Social Sciences was used to perform multiple linear regression analysis on Beijing’s future power demand and to analyze the impact of climate change on electricity supply in both the RCP4.5 and RCP8.5 (representative concentration pathway 4.5 and 8.5) scenarios. Based on the analysis of the impact of climate change on energy supply, a multi-objective optimization model for new and renewable energy structure adjustment combined with climate change was proposed. The model was then used to predict the optimal power generation of the five energy types under different conditions in 2020. Through comparison of the results, it was found that the development amount and development ratio of various energy forms underwent certain changes. In the case of climate change, the priority development order of new and renewable energies in Beijing was: external electricity > other renewable energy > solar energy > wind energy > biomass energy. The energy structure adjustment program in the context of climate change will contribute to accelerating the development and utilization of new and renewable energies, alleviating the imbalance between power supply and demand and improving energy security.

scholarly journals Environmental and social issues on energy policy in indonesia

2018 ◽  
Vol 73 ◽  
pp. 02002
Author(s):  
Sudharto Prawata Hadi ◽  
Bulan Prabawani ◽  
Hartuti Purnaweni
Keyword(s):  
Climate Change ◽  
Mineral Resource ◽  
Renewable Energy ◽  
Social Issues ◽  
Secondary Data ◽  
Energy System ◽  
Fossil Energy ◽  
Crucial Problem ◽  
New Energy ◽  
The Impact

One crucial problem faced by Indonesia is the dependence on fossil energy reaching to 93,3%, while the share of renewable energy is only 7,7%. This causes two implications. Firstly, Indonesia is at the situation of insecurity energy due to the limitation of the availability of fossil energy. Since 2004, Indonesia is net importer oil country. Secondly, the use of fossil energy creates CO2, a component of green house gases stimulating global warming and climate change. One strategy to deal with this problem is by implementing new energy system consisting of developing renewable energy and energy efficiency. This paper observes the impact of the use of fossil energy, the measures taken to deal with these problems and the issues of implementing the measures. This research relies on secondary data available at the Ministry of Energy and Mineral Resource, Ministry of Environment and Forestry specifically at by Proper Secretariat, and other relevant sources.

scholarly journals Renewable energy and adaptation to climate change

2021 ◽  
Vol 3 (2) ◽  
pp. 111-121
Author(s):  
Marta Stoian
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Renewable Energy ◽  
Energy Transition ◽  
Clean Energy ◽  
Energy System ◽  
Adaptation To Climate Change ◽  
Current Climate ◽  
Holistic Understanding ◽  
The Impact

Climate change is an unprecedented challenge in human history. It requires further immediate and concerted action. Understanding the stage of development of each energy resource, as the impact on the energy system to make informed decisions and prescribe a healthy energy future has thus become a priority. Decisions such as the phasing out of fossil fuels and the transition to an efficient and 100% renewable energy system, as well as increasing the storage capacity of greenhouse gases using environmentally sustainable approaches, maintaining natural ecosystems that generate environmental services, and restoring the degraded ones are now a top issue. Therefore, the relationship between energy and environmental policy is becoming essential. Accordingly, this paper will focus on the transition to renewable energy, the adaptation to climate change and the energy transition at EU level being strenuously debated, in order to build a holistic context of the actual situation. Adaptation to climate change requests a complex scientific study, given the diversity of uncertainties involved, and the interconnections between different areas, such as agriculture, sustainable development or energy industry. Therefore, the aim of research is to provide holistic understanding of the current climate issues, according to the mentioned fields. In this context, it is emphasized the benefits of clean energy by investigating the methods for achieving a prolific energy transition, from a conventional to a sustainable one. Carefully analysing the commitments and the transition to a low-carbon electricity system looking behind the causes and studying closely the underlying elements of all these topics, using the qualitative research method as a basis to indulge in further analysis and research, it was outlined a detailed analysis of the current climate context. In conclusion, the effect of the pressure brought into play by human exploitation of goods and services on the ecosystems was associated with the ongoing concerns of environmental degradation, climatic variations, natural and ecological distortions, and financial setbacks. Taking into account the drive toward accomplishing sustainable development and environmental quality, powerful policies are being implemented, but given the variety of investment conditions in each country and including the different characteristics of the financial markets, there is no unique solution that works for everybody. Therefore, the transition to a more sustainable energy system has a verity of implications but it is an essential condition for sustainable development.

scholarly journals The impact of small and medium-sized businesses in Cameroon on the development of the energy system

2019 ◽  
Vol 140 ◽  
pp. 03003
Author(s):  
Nyemb Bekoume Nyemb ◽  
Olga Novikova
Keyword(s):  
Power Grid ◽  
Rapid Development ◽  
Supply And Demand ◽  
Electric Energy ◽  
Electricity Consumption ◽  
Energy System ◽  
Electricity Supply ◽  
The Impact

The development of Cameroon’s power grid is linked to the electricity supply and demand market. In recent years, small and medium-sized businesses, due to their rapid development, begin to significantly affect the balance of consumption. According to the results of the analysis, the paper presents the classification of the share of electricity consumption by small and medium-sized enterprises by industry. The forecast of self-generation of electric energy by enterprises from biogas is estimated.

scholarly journals Promoting Renewable Energy to Cope with Climate Change—Policy Discourse in Israel

2021 ◽  
Vol 13 (6) ◽  
pp. 3170
Author(s):  
Avri Eitan
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Climate Change Mitigation ◽  
Renewable Energies ◽  
Mitigation Strategies ◽  
Policy Discourse ◽  
Policy Makers ◽  
Change Mitigation

Evidence shows that global climate change is increasing over time, and requires the adoption of a variety of coping methods. As an alternative for conventional electricity systems, renewable energies are considered to be an important policy tool for reducing greenhouse gas emissions, and therefore, they play an important role in climate change mitigation strategies. Renewable energies, however, may also play a crucial role in climate change adaptation strategies because they can reduce the vulnerability of energy systems to extreme events. The paper examines whether policy-makers in Israel tend to focus on mitigation strategies or on adaptation strategies in renewable energy policy discourse. The results indicate that despite Israel’s minor impact on global greenhouse gas emissions, policy-makers focus more on promoting renewable energies as a climate change mitigation strategy rather than an adaptation strategy. These findings shed light on the important role of international influence—which tends to emphasize mitigation over adaptation—in motivating the domestic policy discourse on renewable energy as a coping method with climate change.

scholarly journals The Impact of Temporal Complexity Reduction on a 100% Renewable European Energy System with Hydrogen Infrastructure

2019 ◽  
Author(s):  
Dilara Gulcin Caglayan ◽  
Heidi Ursula Heinrichs ◽  
Detlef Stolten ◽  
Martin Robinius
Keyword(s):  
Renewable Energy ◽  
Wind Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Promising Alternative ◽  
Renewable Energy System ◽  
Hydrogen Infrastructure ◽  
Storage Technologies ◽  
The Impact

The transition towards a renewable energy system is essential in order to reduce greenhouse gas emissions. The increase in the share of variable renewable energy sources (VRES), which mainly comprise wind and solar energy, necessitates storage technologies by which the intermittency of VRES can be compensated for. Although hydrogen has been envisioned to play a significant role as a promising alternative energy carrier in a future European VRES-based energy concept, the optimal design of this system remains uncertain. In this analysis, a hydrogen infrastructure is posited that would meet the electricity and hydrogen demand for a 100% renewable energy-based European energy system in the context of 2050. The overall system design is optimized by minimizing the total annual cost. Onshore and offshore wind energy, open-field photovoltaics (PV), rooftop PV and hydro energy, as well as biomass, are the technologies employed for electricity generation. The electricity generated is then either transmitted through the electrical grid or converted into hydrogen by means of electrolyzers and then distributed through hydrogen pipelines. Battery, hydrogen vessels and salt caverns are considered as potential storage technologies. In the case of a lull, stored hydrogen can be re-electrified to generate electricity to meet demand during that time period. For each location, eligible technologies are introduced, as well as their maximum capacity and hourly demand profiles, in order to build the optimization model. In addition, a generation time series for VRES has been exogenously derived for the model. The generation profiles of wind energy have been investigated in detail by considering future turbine designs with high spatial resolution. In terms of salt cavern storage, the technical potential for hydrogen storage is defined in the system as the maximum allowable capacity per region. Whether or not a technology is installed in a region, the hourly operation of these technologies, as well as the cost of each technology, are obtained within the optimization results. It is revealed that a 100 percent renewable energy system is feasible and would meet both electricity demand and hydrogen demand in Europe.

scholarly journals What role will climate change play in EU agricultural markets? An integrated assessment taking into account carbon fertilization effects

2017 ◽  
Vol 15 (3) ◽  
pp. e0115 ◽  
Author(s):  
Pilar Martinez ◽  
María Blanco ◽  
Benjamin Van Doorslaer ◽  
Fabien Ramos ◽  
Andrej Ceglar
Keyword(s):  
Climate Change ◽  
Supply And Demand ◽  
Agricultural Markets ◽  
Climate Projections ◽  
Baseline Scenario ◽  
Market Uncertainty ◽  
Agricultural Market ◽  
Carbon Fertilization ◽  
Fertilization Effects ◽  
The Impact

Recent studies point to climate change being one of the long-term drivers of agricultural market uncertainty. To advance in the understanding of the influence of climate change on future agricultural market developments, we compared a baseline scenario for the year 2030 with alternative simulation scenarios that differ regarding: (1) emission scenarios; (2) climate projections; and (3) the consideration of carbon fertilization effects on crop growth. For each simulation scenario, the CAPRI model provides global and EU-wide impacts of climate change on agricultural markets. Results showed that climate change would considerably affect agrifood markets up to 2030. Nevertheless, market-driven adaptation strategies (production intensification, trade adjustments) would soften the impact of yield shocks on supply and demand. As a result, regional changes in production would be lower than foreseen by other studies focused on supply effects.

scholarly journals The Climate Action Simulation

2019 ◽  
Vol 51 (2) ◽  
pp. 114-140 ◽  
Author(s):  
Juliette N. Rooney-Varga ◽  
Florian Kapmeier ◽  
John D. Sterman ◽  
Andrew P. Jones ◽  
Michele Putko ◽  
...  
Keyword(s):  
Climate Change ◽  
Focus Group ◽  
Energy Systems ◽  
Role Playing ◽  
Energy System ◽  
Initial Evaluation ◽  
Emotional Engagement ◽  
Action Simulation ◽  
Climate Action ◽  
The Impact

Background. We describe and provide an initial evaluation of the Climate Action Simulation, a simulation-based role-playing game that enables participants to learn for themselves about the response of the climate-energy system to potential policies and actions. Participants gain an understanding of the scale and urgency of climate action, the impact of different policies and actions, and the dynamics and interactions of different policy choices. Intervention. The Climate Action Simulation combines an interactive computer model, En-ROADS, with a role-play in which participants make decisions about energy and climate policy. They learn about the dynamics of the climate and energy systems as they discover how En-ROADS responds to their own climate-energy decisions. Methods. We evaluated learning outcomes from the Climate Action Simulation using pre- and post-simulation surveys as well as a focus group. Results. Analysis of survey results showed that the Climate Action Simulation increases participants’ knowledge about the scale of emissions reductions and policies and actions needed to address climate change. Their personal and emotional engagement with climate change also grew. Focus group participants were overwhelmingly positive about the Climate Action Simulation, saying it left them feeling empowered to make a positive difference in addressing the climate challenge. Discussion and Conclusions. Initial evaluation results indicate that the Climate Action Simulation offers an engaging experience that delivers gains in knowledge about the climate and energy systems, while also opening affective and social learning pathways.

scholarly journals Characteristics Analysis of the Heat-to-Power Ratio from the Supply and Demand Sides of Cities in Northern China

Energies ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 242 ◽  
Author(s):  
Shunyong Yin ◽  
Jianjun Xia ◽  
Yi Jiang
Keyword(s):  
Supply And Demand ◽  
Northern China ◽  
Energy System ◽  
Energy Structure ◽  
Supply Side ◽  
Power Ratio ◽  
Demand Side ◽  
Demand And Supply ◽  
Heating Method ◽  
Urban Energy

Combined heat and power (CHP), an efficient heating method with cascades use of energy, accounts for approximately 50% of the heat sources in northern China. Many researchers have made significant efforts to improve its energy efficiency and environmental effects with important achievements. Given that the system produces heat and electricity at the same time, this study focuses on the role of CHP in the holistic urban energy system and points out the mismatch between the demand and supply sides of urban energy systems by using the heat-to-power ratio as a parameter. The calculation method and characteristics of the supply side heat-to-power ratio of eight heating methods and the maximum demand side heat-to-power ratio for 19 cities in northern China are displayed. After the analysis, it is concluded that (1) the maximum demand side heat-to-power ratio in the cities varies from 1.0 to 5.9, which is affected by the location and social, economic, and industrial structures. (2) In most of the cities, with the current energy structure, the demand side heat-to-power ratios are always larger than the supply side heat-to-power ratios. (3) The reduction in heating demand, surplus heat recovery, and the use of a highly efficient electric heating method, such as the heat pump, can help solve the mismatch of the heat-to-power ratio between the demand and supply sides. These conclusions can guide the urban energy planning and system construction.

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