Large-scale electricity storage utilizing reversible solid oxide cells combined with underground storage of CO2 and CH4

2015 ◽  
Vol 8 (8) ◽  
pp. 2471-2479 ◽  
Author(s):  
S. H. Jensen ◽  
C. Graves ◽  
M. Mogensen ◽  
C. Wendel ◽  
R. Braun ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Large Scale ◽  
Fossil Fuels ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Solid Oxide ◽  
Energy Sources ◽  
Underground Storage ◽  
Electricity Storage

Electricity storage is needed on an unprecedented scale to sustain the ongoing transition of electricity generation from fossil fuels to intermittent renewable energy sources like wind and solar power.

scholarly journals Modelling and Environmental Assessment of a Stand-Alone Micro-Grid System in a Mountain Hut Using Renewables

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 202
Author(s):  
Mitja Mori ◽  
Manuel Gutiérrez ◽  
Mihael Sekavčnik ◽  
Boštjan Drobnič
Keyword(s):  
Renewable Energy ◽  
Environmental Impacts ◽  
Energy Demand ◽  
Electricity Generation ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Minor Effect ◽  
Lifecycle Assessment ◽  
Micro Grid

Mountain huts are stand-alone micro-grid systems that are not connected to a power grid. However, they impact the environment by generating electricity and through day-to-day operations. The installed generator needs to be flexible to cover fluctuations in the energy demand. Replacing fossil fuels with renewable energy sources presents a challenge when it comes to balancing electricity generation and consumption. This paper presents an integration-and-optimization process for renewable energy sources in a mountain hut’s electricity generation system combined with a lifecycle assessment. A custom computational model was developed, validated with experimental data and integrated into a TRNSYS model. Five different electricity generation topologies were modelled to find the best configuration that matches the dynamics and meets the cumulative electricity demand. A lifecycle assessment methodology was used to evaluate the environmental impacts of all the topologies for one typical operating year. The carbon footprint could be reduced by 34% in the case of the actually implemented system upgrade, and by up to 47% in the case of 100% renewable electricity generation. An investment cost analysis shows that improving the battery charging strategy has a minor effect on the payback time, but it can significantly reduce the environmental impacts.

Clean Power from Deserts

Green ◽  
2011 ◽  
Vol 1 (3) ◽  
Author(s):  
Michael Düren
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Water Desalination ◽  
Energy Sources ◽  
Scale Production ◽  
Large Power ◽  
Economic Implications ◽  
Economic Wealth

AbstractSolar power from deserts can contribute significantly to a future renewable energy system. The technically accessible solar potential in deserts exceeds the global energy demand by a factor of 20. In the DESERTEC concept, a smart super grid based on HVDC technology interconnects wind, solar and other renewable energy sources with distant consumers on a scale of several thousand kilometres. The large grid averages out the natural fluctuations of renewable energy sources to a large extend. Remaining fluctuations have to be compensated by storage systems. Two competing technologies, CSP and PV, are available for large-scale solar power production in desert countries. CSP technology can be combined with thermal energy storage and water desalination. A large-scale production of solar energy in desert countries has important socio-economic implications. The interconnection of continents by large power grids introduces new economical interdependencies, which can help to reduce the North-South gradient of economic wealth.

Integrative Analysis of Non-Renewable and Renewable Energy Sources for Electricity Generation in U.S.: Demand and Supply Factors, Environmental Risks and Policy Evaluation

2010 ◽  
Author(s):  
Ramesh Agarwal ◽  
Ping Wang ◽  
Lee Chusak
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Supply And Demand ◽  
Energy Sources ◽  
Electricity Supply ◽  
Energy Prices ◽  
Biomass Waste ◽  
Demand And Supply

An equilibrium economic model for policy evaluation related to electricity generation has been developed; the model takes into account the non-renewable and renewable energy sources, demand and supply factors and environmental constraints. The non-renewable energy sources include three types of fossil fuels: coal, natural gas and petroleum, and renewable energy sources include nuclear, hydraulic, wind, solar photovoltaic, biomass wood, biomass waste and geothermal. Energy demand sectors include households, industrial manufacturing and commercial enterprises (non-manufacturing businesses such as software firms, banks, restaurants, service organizations, universities, etc.). Energy supply takes into account the electricity delivered to the consumer by the utility companies at a certain price which maybe different for retail and wholesale customers. Environmental risks primarily take into account the CO2 generation from fossil fuels. The model takes into account the employment in various sectors and labor supply and demand. Detailed electricity supply and demand data, electricity cost data, employment data in various sectors and CO2 generation data are collected for a period of seventeen years from 1990 to 2006 in U.S. The model is calibrated for the aggregate data. The calibrated model is then employed for policy analysis experiments if a switch is made in sources of electricity generation, namely from fossil fuels to renewable energy sources. As an example, we consider a switch of 10% of electricity generation from coal to 5% from wind, 3% from solar photovoltaic, 1% from biomass wood and 1% from biomass waste. It should be noted that the cost of electricity generation from different sources is different and is taken into account. The consequences of this switch on supply and demand, employment, wages, and emissions are obtained from the economic model under three scenarios: (1) energy prices are fully regulated, (2) energy prices are fully adjusted with electricity supply fixed, and (3) energy prices and electricity supply both are fully adjusted.

scholarly journals Determining Optimal Solar Power Plant Locations Based on Remote Sensing and GIS Methods: A Case Study from Croatia

2019 ◽  
Vol 11 (12) ◽  
pp. 1481 ◽  
Author(s):  
Iva Gašparović ◽  
Mateo Gašparović
Keyword(s):  
Sensitivity Analysis ◽  
Renewable Energy ◽  
Power Plants ◽  
Fossil Fuels ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Energy Sources ◽  
Geomorphological Parameters ◽  
Weight Coefficients

In the last few years, the world has been turning to the exploitation of renewable energy sources due to increased awareness of environmental protection and increased consumption of fossil fuels. In this research, by applying geographic information systems and integrating them with multi-criteria decision making methods, an area suitable for the construction and exploitation of renewable energy sources is determined. The research uses not only climate, spatial, environmental, and geomorphological parameters but also socioeconomic parameters, population, unemployment, and number of tourist nights as well as electricity consumption. By applying spatial analysis, rasters of all parameters were created using GRASS GIS software. Using the analytic hierarchy process, the calculated rasters are assigned with weight coefficients, and the sum of all those rasters gives the final raster of optimal locations for the construction of solar power plants in Croatia. To test the accuracy of the obtained results, sensitivity analysis was performed using different weight coefficients of the parameters. From the sensitivity analysis results, as well as a histogram and statistical indicators of the three rasters, it is apparent that raster F1 gives the best results. The most decisive parameters in determining the optimal solar plant locations that result from this research are GHI, land cover, and distance to the electricity network.

scholarly journals An Optimization Strategy for Sustainable Development of Renewable Energy System

2019 ◽  
Vol 9 (2S2) ◽  
pp. 629-636
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Large Scale ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Transport Sector ◽  
Energy Sources ◽  
Optimization Strategy ◽  
Renewable Energy System

The main objective of this paper is to present the detailed information about various renewable energy sources for creating a technique used for sustainable development. Such kind of technique comprises of energy saving, increasing energy production and replacing fossil fuels using different renewable energy sources. It is motivated to include various novel techniques with large-scale renewable energy plants for integrating and measuring the efficiency of the plants. According to India, this paper discussed about the various problems and issues associated with converting available energy systems into complete renewable energy system. From the overall discussion, it is concluded that converting total energy system into renewable energy system is possible. Also, what are all the requirements, current available resources and future methods to improve the energy system are discussed. But converting the transport sector into flexible energy system methods is difficult.

scholarly journals Selection of optimal places for constructions of renewable energy stations in Myanmar using analytic hierarchy process (AHP) method

2021 ◽  
Vol 270 ◽  
pp. 01022
Author(s):  
Thu Yein Min ◽  
Michael Tyagunov ◽  
He Haiyang
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Fossil Fuels ◽  
Oil And Gas ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Ahp Method ◽  
Analytic Hierarchy ◽  
Funding Sources ◽  
Resource Degradation

The article discusses the formulation of the problem of choosing the optimal places for building renewable energy stations in Myanmar using the analytical hierarchical process (AHP) method. Today Myanmar is a developing country in Southeast Asia. Myanmar possesses a variety of energy resources, including renewable and non-renewable energy sources. Humans have especially used, and are now using, fossil fuels. After 2010, Myanmar began to focus heavily on renewable energy sources (RES). The Ministry of Electricity and Energy (MOEE) is the responsible ministry for the energy sector in Myanmar. MOEE is also responsible for the production, production and transportation of oil and gas. Myanmar has long been isolated from international markets, and funding sources have historically limited development and therefore pressure on its environment. Many of its resources remain relatively intact despite the lack of effective environmental regulations. However, as the country integrates into the world economy and its economic development are accelerating, resource degradation is growing rapidly. Deforestation of closed forests in recent years has been the fastest growing among large Southeast Asian countries, most of which are driven by plantation concessions and other large-scale projects. In order to reduce the use of fossil fuels and increase the use of renewable energy sources in Myanmar, it is necessary to investigate where and which RES are optimal depending on all situations.

Comparison of the Possibility of Using the Accumulation Underground Storage under Buildings

2013 ◽  
Vol 649 ◽  
pp. 139-142 ◽  
Author(s):  
Radek Partika ◽  
Miloš Kalousek
Keyword(s):  
Renewable Energy ◽  
Solar Radiation ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Extended Period ◽  
Heat Energy ◽  
Energy Sources ◽  
Underground Storage ◽  
Effective Utilization ◽  
Surplus Energy

The article focuses on a comparison of storage of heat energy to the underground soil tank located under the building or in the immediate vicinity. Effective utilization of surplus energy from solar radiation that would be stored in a tank under the buildings and subsequently used for an extended period of time is one of the factors that significantly related to the reduction of environmental burden, and elimination of non-renewable energy sources, especially fossil fuels.

Renewable Energy Sources,Technologies and Protection Challenges in Indian Context:A Comprehensive Review

2021 ◽  
pp. 6332-6346
Author(s):  
Anjan Kumar Sahoo,Girija Sankar Panigrahi, Krushna Keshab Baral, Sudhansu Kumar Samal
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Fossil Fuels ◽  
Economic Condition ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Environment Friendly ◽  
Indian Context ◽  
Populous Country

The prime requirement for the improvement of quality of life and the socio-economic condition of any nation is the clean and environment friendly energy harvesting. India, the 2nd highest populous country with a population of 1.39 billion is one of the largest consumers of using fossil fuels in the world. Limited availability of the fossil fuels may obstruct the future socio-economic development. Hence India government motivates the use of renewable energy sources. The renewable energy sources like solar, wind and biomass etc will never diminish their availability. Sunlight is used to meet ever increasing energy need. The literature analysis shows that in India fossil fuels still continues to contribute 80% and renewable energy sources around 20% of the total electricity generation. It is now of prime importance to focus on the technologies and the protection challenges of renewable energy sources in Indian context. The author has reviewed more than 300 research articles and presented various analysis reports. This will definitely help the researchers to find the lacuna behind less contribution of the renewable energy sources.

Nigeria: Advancing the Cause of Renewable Energy in Nigeria’s Power Sector Through its Legal Framework

2021 ◽  
Vol 50 (4-5) ◽  
pp. 433-444
Author(s):  
Olusola Joshua Olujobi ◽  
Temilola Olusola-Olujobi
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Legal Framework ◽  
Comparative Approach ◽  
Energy Sources ◽  
Power Sector ◽  
Alternative Source ◽  
Regulatory Policies ◽  
Oil Sector

Fossil fuels have been the mainstream of energy supply and a major source of foreign exchange earnings for the Federal Government of Nigeria, in spite of being an unrenewable and unsustainable source of energy. Nigeria is yet to tap into the full benefits after privatising its power sector, including the new global evolution in the energy sector and the resulting increasing demand for renewable energy sources, which some consider to be cheaper and more environmentally friendly than fossil fuels and their allied products. Energy security is a challenge to socio-economic development in Nigeria, due to the country’s over-dependency on fossil fuels. In terms of their impact and the potentials to preserve energy sources for longevity and sustainability, however, fossil fuels will come to be seen as an out-dated alternative in the power sector as the energy industry evolves. The implications for Nigeria’s oil sector will not be limited to dwindling crude oil prices. The concerns include poor energy utilisation in Nigeria and the need to promote energy efficiency and sustainability. They have led to the formulation of new energy policies around the world to serve as a vehicle for translating solutions into reality. This study has adopted a library-based legal research method with a comparative approach. The study reveals that it is the lack of a coherent legal framework with incentives for using renewable energy that is largely seen as the key issue causing slow uptake of renewable energy as an alternative source of energy in Nigeria. As well as the need for a coherent legal framework on energy and incentives for using renewable energy sources, the study advocates stringent enforcement of existing energy regulatory policies.

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