scholarly journals Cost-effective Electro-Thermal Energy Storage to balance small scale renewable energy systems

2021 ◽  
Vol 41 ◽  
pp. 102829
Author(s):  
Sampson Tetteh ◽  
Maryam Roza Yazdani ◽  
Annukka Santasalo-Aarnio
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Energy Systems ◽  
Cost Effective ◽  
Small Scale ◽  
Renewable Energy Systems

scholarly journals Self-Sufficiency and Energy Savings of Renewable Thermal Energy Systems for an Energy-Sharing Community

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4284
Author(s):  
Min-Hwi Kim ◽  
Youngsub An ◽  
Hong-Jin Joo ◽  
Dong-Won Lee ◽  
Jae-Ho Yun
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Energy Systems ◽  
Hot Water ◽  
Pump System ◽  
Ground Source Heat Pumps ◽  
Self Sufficiency ◽  
Energy Sharing

Due to increased grid problems caused by renewable energy systems being used to realize zero energy buildings and communities, the importance of energy sharing and self-sufficiency of renewable energy also increased. In this study, the energy performance of an energy-sharing community was investigated to improve its energy efficiency and renewable energy self-sufficiency. For a case study, a smart village was selected via detailed simulation. In this study, the thermal energy for cooling, heating, and domestic hot water was produced by ground source heat pumps, which were integrated with thermal energy storage (TES) with solar energy systems. We observed that the ST system integrated with TES showed higher self-sufficiency with grid interaction than the PV and PVT systems. This was due to the heat pump system being connected to thermal energy storage, which was operated as an energy storage system. Consequently, we also found that the ST system had a lower operating energy, CO2 emissions, and operating costs compared with the PV and PVT systems.

Fe, Ni-codoped W18O49 grown on nickel foam as bifunctional electrocatalyst for boosted water splitting

2021 ◽  
Author(s):  
Guojuan Hai ◽  
Jianfeng Huang ◽  
Liyun Cao ◽  
Koji Kajiyoshi ◽  
Long Wang ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Water Splitting ◽  
High Performance ◽  
Solvothermal Method ◽  
Nickel Foam ◽  
Energy Systems ◽  
Cost Effective ◽  
Bifunctional Catalysts ◽  
Renewable Energy Systems ◽  
Bifunctional Electrocatalyst

Designing cost-effective bifunctional catalysts with high-performance and durability is of great significance for the renewable energy systems. Herein, a typical Fe, Ni-codoped W18O49/NF was prepared via a simple solvothermal method....

scholarly journals Demonstrating Cost Effective Thermal Energy Storage in Molten Salts: DLR’s TESIS Test Facility

2017 ◽  
Vol 135 ◽  
pp. 14-22 ◽  
Author(s):  
Christian Odenthal ◽  
Freerk Klasing ◽  
Thomas Bauer
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Molten Salts ◽  
Cost Effective ◽  
Test Facility

Empowering the smart grid: can redox batteries be matched to renewable energy systems for energy storage?

2013 ◽  
Vol 6 (3) ◽  
pp. 1026 ◽  
Author(s):  
Jonathan E. Halls ◽  
Amanda Hawthornthwaite ◽  
Russell J. Hepworth ◽  
Noel A. Roberts ◽  
Kevin J. Wright ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Smart Grid ◽  
Energy Systems ◽  
Renewable Energy Systems

Smart Grids and Hybrid Energy Storage Systems

2022 ◽  
pp. 779-804
Author(s):  
Muhammad Asif Rabbani
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Smart Grid ◽  
Storage Systems ◽  
Control Strategies ◽  
Energy Systems ◽  
Energy Storage Systems ◽  
Renewable Energy Systems ◽  
Hybrid Energy ◽  
Hybrid Energy Storage

It is very important that the installed renewable energy system should produce the maximum power outputs with minimum costs, and that can only be achieved with the selection of the best optimization technique applied for the best control strategies along with the introduction of the hybrid energy storage systems (HESS). This chapter presents some optimization techniques applied in control strategies for hybrid energy storage systems in distributed renewable energy systems. The integration of energy production and consumption component through the smart grid concept enables increased demand response and energy efficiency. Hybrid energy storage systems and their applications in the renewable energy systems are extensively discussed besides control strategies involved. The storages systems will play an important role in future related to smart grid.

scholarly journals A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 755 ◽  
Author(s):  
Umashankar Subramaniam ◽  
Sridhar Vavilapalli ◽  
Sanjeevikumar Padmanaban ◽  
Frede Blaabjerg ◽  
Jens Bo Holm-Nielsen ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy Systems ◽  
System Response ◽  
Renewable Energy Systems ◽  
Remote Locations ◽  
Power Fluctuations ◽  
Uninterruptible Power ◽  
Grid Side ◽  
Power Balancing

In remote locations such as villages, islands and hilly areas, there is a possibility of frequent power failures, voltage drops or power fluctuations due to grid-side faults. Grid-connected renewable energy systems or micro-grid systems are preferable for such remote locations to meet the local critical load requirements during grid-side failures. In renewable energy systems, solar photovoltaic (PV) power systems are accessible and hybrid PV-battery systems or energy storage systems (ESS) are more capable of providing uninterruptible power to the local critical loads during grid-side faults. This energy storage system also improves the system dynamics during power fluctuations. In present work, a PV-battery hybrid system with DC-side coupling is considered, and a power balancing control (PBC) is proposed to transfer the power to grid/load and the battery. In this system, a solar power conditioning system (PCS) acts as an interface across PV source, battery and the load/central grid. With the proposed PBC technique, the system can operate in following operational modes: (a) PCS can be able to work in grid-connected mode during regular operation; (b) PCS can be able to charge the batteries and (c) PCS can be able to operate in standalone mode during grid side faults and deliver power to the local loads. The proposed controls are explained, and the system response during transient and steady-state conditions is described. With the help of controller-in-loop simulation results, the proposed power balancing controls are validated, for both off-grid and on-grid conditions.

scholarly journals The Capacity Optimization of Wind-Photovoltaic-Thermal Energy Storage Hybrid Power System

2019 ◽  
Vol 118 ◽  
pp. 02054
Author(s):  
Jingli Li ◽  
Wannian Qi ◽  
Jun Yang ◽  
Yi He ◽  
Jingru Luo ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Power System ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Electric Heater ◽  
Transmission Channel ◽  
Capacity Optimization ◽  
Hybrid Power System ◽  
Hybrid Power

This paper proposes a Wind-Photovoltaic-Thermal Energy Storage hybrid power system with an electric heater. The proposed system consists of wind subsystem, photovoltaic subsystem, electric heater, thermal energy storage and steam turbine unit. The electric heater is used to convert the redundant electricity from wind or photovoltaic subsystem into heat, which is stored in thermal energy storage. When the system output is less than the load demand, thermal energy storage system releases heat to generate electricity. In this paper, the optimal objective is to minimize the levelized cost of energy and maximize the utilization rates of renewable energy and transmission channel. The fitness function is compiled according to the scheduling strategy, and the capacity optimization problem is solved by particle swarm optimization algorithm in MATLAB. The case analysis show that the proposed system can effectively increase the utilization rate of renewable energy and transmission channel.

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