Simulation Based Grid Optimization to Enhance Renewable Energy Storage in Iceland

2014 ◽  
Author(s):  
Michael Sugar ◽  
Runar Unnthorsson
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy Balance ◽  
Large Scale ◽  
Performance Metrics ◽  
Tidal Energy ◽  
Transmission System ◽  
Transmission Model ◽  
Renewable Energy Resources ◽  
Peak Shaving

Renewable energy resources are contributing evermore to the generation mix worldwide, however, expanding grids in size and complexity have given rise to unforeseen complications such as frequency oscillations, voltage sags and spikes, and power outages. In 2013, nearly 100% of electricity generation in Iceland was from hydropower and geothermal sources; there is also high potential for wind and tidal energy, both options are being explored and would benefit from additional technologies to manage fluctuations and store energy surplus. Landsnet is the sole transmission system operator (TSO) responsible for energy balance in Iceland. On the consumer side, load variations represent difficulties for utilities to meet ever-changing demand. Research indicates high-capacity electricity energy storage (EES) has the potential to be economically beneficial as well as carbon neutral, all while improving power and voltage quality, peak-shaving, reducing the number of grid failures and reducing natural fluctuations in renewable energy (RE) sources. Two complex resource deployment scenarios are modeled using GridCommand™ Distribution: (1) large-scale 10 MWh capacity EES evenly distributed across the transmission system, and (2) large-scale 10 MWh capacity EES clustered at targeted substations in the transmission system. Results reveal 10 MWh capacity battery EES at a density of 60% in the transmission model provides optimal performance conditions. Optimal conditions are defined by EES performance metrics, and signify improvements in power quality, energy balance, and peak-shaving when electricity demand is at its highest. EES technologies are presented and tested at different locations across the Icelandic grid to predict which solutions are best for the future development of the electricity system.

Thermodynamic Analysis and Performance Enhancement of Air and CO2 Based Compressed Gas Storage Systems

2019 ◽  
Author(s):  
Abhishek Dahiya ◽  
Jishnu Bhattacharya ◽  
Nitin D. Banker
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Large Scale ◽  
Performance Enhancement ◽  
Storage Systems ◽  
Research Work ◽  
Renewable Resource ◽  
Performance Comparison ◽  
Renewable Energy Resources ◽  
Compressed Gas

Abstract Due to the depletion of fossil fuels and their adverse effects on the environment, there is a need of hour to shift towards the renewable energy resources. However, the most promising renewable resources such as wind power and solar power are intermittent in nature. Thus, a sustainable shift requires economical and efficient energy storage systems. Use of batteries is the widely accepted storage systems for such resources and significant research work has been carried out in last few decades to improve the cycle life of batteries but they are still unsuitable for large scale systems and disposal of discarded batteries is also a major environmental concern. In view of this, researchers found compressed gas energy storage (CGES) system as one of the potential alternatives to store renewable energy at large spatial and temporal scales. The current study provides a comparison between air and carbon dioxide (CO2) based CGES systems from a thermodynamic standpoint. In an effort of improving efficiency of system, it is proposed to supply additional heat via renewable resource to CO2 based system before the expansion of gas in the turbine. The performance comparison of six different systems has been carried out using first and second law efficiencies.

Application of LiMn2O4 Nanostructures as Efficient Cathodes for Energy Storage Devices

2021 ◽  
pp. 204-228
Author(s):  
Shabir Ahmad Akhoon ◽  
Ashaq Hussain Sofi ◽  
Rayees Ahmad Khan ◽  
Ab. Mateen Tantray ◽  
Seemin Rubab
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Large Scale ◽  
Fossil Fuels ◽  
Lithium Ion ◽  
Energy Utilization ◽  
Renewable Energy Resources ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
End Use

Renewable energy resources have been investigated as alternatives to fossil fuels. Though the energy density of these renewable sources is not comparable to the fossil fuels, their abundance make them highly interesting. There are three main steps in the renewable energy utilization: harvesting, conversion, and storage. Thus, after harvesting renewable energy, storing this energy is an important aspect for its large-scale end use. Considering the fact that the energy is a basic need for life on earth, there has been a strong scientific temperament towards the renewable energy utilization. The electrical energy storage maintains the key to promote the use of renewable energy. Among the storage devices, the rechargeable lithium ion batteries (LIBs) are the most promising energy storage devices. Among various cathodes proposed for LIBs, the most promising one is the spinel lithium manganese oxide (LiMn2O4). Its non-toxicity, low cost, abundance, and ease of synthesis, besides being environmentally friendly, make it suitable for next generation green LIBs.

scholarly journals Stand-Alone Microgrid with 100% Renewable Energy: A Case Study with Hybrid Solar PV-Battery-Hydrogen

2020 ◽  
Vol 12 (5) ◽  
pp. 2047 ◽  
Author(s):  
Furat Dawood ◽  
GM Shafiullah ◽  
Martin Anda
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy Balance ◽  
Rural Communities ◽  
Storage System ◽  
Economic Feasibility ◽  
Solar Pv ◽  
Economic Optimization ◽  
Renewable Energy Resources ◽  
Hybrid Energy

A 100% renewable energy-based stand-alone microgrid system can be developed by robust energy storage systems to stabilize the variable and intermittent renewable energy resources. Hydrogen as an energy carrier and energy storage medium has gained enormous interest globally in recent years. Its use in stand-alone or off-grid microgrids for both the urban and rural communities has commenced recently in some locations. Therefore, this research evaluates the techno-economic feasibility of renewable energy-based systems using hydrogen as energy storage for a stand-alone/off-grid microgrid. Three case scenarios in a microgrid environment were identified and investigated in order to select an optimum solution for a remote community by considering the energy balance and techno-economic optimization. The “HOMER Pro” energy modelling and simulating software was used to compare the energy balance, economics and environmental impact amongst the proposed scenarios. The simulation results showed that the hydrogen-battery hybrid energy storage system is the most cost-effective scenario, though all developed scenarios are technically possible and economically comparable in the long run, while each has different merits and challenges. It has been shown that the proposed hybrid energy systems have significant potentialities in electrifying remote communities with low energy generation costs, as well as a contribution to the reduction of their carbon footprint and to ameliorating the energy crisis to achieve a sustainable future.

Assessment of bioenergy development potential in agricultural enterprises

2020 ◽  
pp. 165-171
Author(s):  
Iryna Hryhoruk
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Agricultural Waste ◽  
General Structure ◽  
Geographical Location ◽  
Economic Assessment ◽  
Energy Resources ◽  
Industrial Complex ◽  
Renewable Energy Resources ◽  
Energy Potential

Exhaustion of traditional energy resources, their uneven geographical location, and catastrophic changes in the environment necessitate the transition to renewable energy resources. Moreover, Ukraine's economy is critically dependent on energy exports, and in some cases, the dependence is not only economic but also political, which in itself poses a threat to national security. One of the ways to solve this problem is the large-scale introduction and use of renewable energy resources, bioenergy in particular. The article summarizes and offers methods for assessing the energy potential of agriculture. In our country, a significant amount of biomass is produced every year, which remains unused. A significant part is disposed of due to incineration, which significantly harms the environment and does not allow earning additional funds. It is investigated that the bioenergy potential of agriculture depends on the geographical distribution and varies in each region of Ukraine. Studies have shown that as of 2019 the smallest share in the total amount of conventional fuel that can be obtained from agricultural waste and products suitable for energy production accounts for Zakarpattya region - 172.5 thousand tons. (0.5% of the total) and Chernivtsi region - 291.3 thousand tons. (0.9%). Poltava region has the greatest potential - 2652.2 thousand tons. (7.8%) and Vinnytsia - 2623.7 thousand tons. (7.7%). It should be noted that the use of the energy potential of biomass in Ukraine can be called unsatisfactory. The share of biomass in the provision of primary energy consumption is very small. For bioenergy to occupy its niche in the general structure of the agro-industrial complex, it is necessary to develop mechanisms for its stimulation. In addition, an effective strategy for the development of the bioenergy sector of agriculture is needed. The article considers the general energy potential of agriculture, its indicative structure. The analysis is also made in terms of areas. In addition, an economic assessment of the possible use of existing potential is identified.

scholarly journals Scaling up: Renewable energy on Aboriginal lands in north west Australia

2021 ◽  
Author(s):  
Brad Riley
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Scaling Up ◽  
Benefit Sharing ◽  
Small Community ◽  
Renewable Energy Resources ◽  
North West ◽  
The North ◽  
History Of ◽  
Aboriginal Lands

This paper examines renewable energy developments on Aboriginal lands in North-West Western Australia at three scales. It first examines the literature developing in relation to large scale renewable energy projects and the Native Title Act (1993)Cwlth. It then looks to the history of small community scale standalone systems. Finally, it examines locally adapted approaches to benefit sharing in remote utility owned networks. In doing so this paper foregrounds the importance of Aboriginal agency. It identifies Aboriginal decision making and economic inclusion as being key to policy and project development in the 'scaling up' of a transition to renewable energy resources in the North-West.

scholarly journals Energy Storage as a System Resource

2020 ◽  
Author(s):  
Ramon Leon ◽  
Maria Camila Ochoa ◽  
Alejandro Gutierrez
Keyword(s):  
Energy Storage ◽  
Electricity Markets ◽  
Large Scale ◽  
Business Models ◽  
Power Grids ◽  
Renewable Energy Resources ◽  
Grid Resource ◽  
Electric Industry ◽  
Sustainable Business ◽  
System Resource

The origins of the electric industry can be traced back to the invention of the battery. However, Energy Storage Systems (ESS) have never been considered as a part of the electricity supply chain. Even though there has been an increase of government mandated storage investments in power grids, market driven investments are still lacking sustainable business models. Now, with the possibility that cost reductions of the technology make it viable for widespread utilization, multiple efforts have been devoted by the academia and industry to design its incorporation into electricity markets. A large majority of the proposals have been devoted to develop mechanisms for their incorporation in ancillary services markets or for arbitrage, considering storage as another market player, both still with little success in providing sustainable benefits to energy consumers and investors alike. In this paper, we demonstrate that Large Scale Energy Storage excels when incorporated as a service provider in electricity markets. Our proposal considers ESS as a grid resource, available to the ISO to achieve the optimal mix of resources in the day ahead dispatch. We demonstrate that in the Colombian system, a large ESS used in this manner may achieve high benefit-cost ratios. The results also indicate that current market designs need to evolve in order to take better advantage of energy storage and renewable energy resources.

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