scholarly journals Evaluation of the energy demands for a floating O&M-hub

2021 ◽  
Author(s):  
F. Wittmann ◽  
C. Schmitt ◽  
F. Adam ◽  
P. Dierken
Keyword(s):  
Software Tool ◽  
Energy System ◽  
Spare Parts ◽  
Simulation Software ◽  
Offshore Wind ◽  
Baseline Scenario ◽  
Horizon 2020 ◽  
Energy Supply System ◽  
The North ◽  
Energy Demands

AbstractThe Energyhub@Sea concept is one of the four research applications of the Space@Sea project funded by the EU’s Horizon 2020 research program (GA number: 774253). The focus of this paper is the evaluation of the energy demands of an energy self-sufficient maintenance platform at the location of Helgoland in the North Sea. In view of this, a standardized modular floater was developed as an offshore wind operation and maintenance base, which in the following paper is referred to as an O&M hub. The O&M hub is intended to be equipped with accommodation facilities and various renewable energy infrastructure as well as spare parts logistics, enabling the platform to perform maintenance of offshore gearless wind turbines with a capacity of up to 10 MW. To be energy self-sustaining, an energy supply system for the hub was developed and simulated at a resolution of ten minutes by means of the Top-Energy simulation software, a commercial software tool. As a basis for the simulation, an approach for the automated determination of flexible load profiles, in resolutions of up to ten minutes was developed. This load profile generator creates load profiles on the basis of environmental conditions, technical characteristics, and expected behaviors of the inhabitants. On the basis of the generated load profiles, a first layout (referred to as baseline scenario) for the different components of the energy system was evaluated and tested through simulation. In a second step, three optimization scenarios were developed and simulated with regards to the financial feasibility of the Energyhub.

scholarly journals North Sea region energy system towards 2050: integrated offshore grid and sector coupling drive offshore wind installations

2020 ◽  
Author(s):  
Matti Koivisto ◽  
Juan Gea-Bermúdez ◽  
Polyneikis Kanellas ◽  
Kauhshik Das ◽  
Poul Sørensen
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
North Sea ◽  
Energy System ◽  
Offshore Wind ◽  
Wind Power Plant ◽  
Offshore Wind Power ◽  
The North ◽  
The North Sea ◽  
Wind Curtailment

Abstract. This paper analyses several energy system scenarios towards 2050 for the North Sea region. With focus on offshore wind power, the impacts of meshed offshore grid and sector coupling are studied. First, a project-based scenario, where each offshore wind power plant is connected individually to onshore, is compared to a meshed grid scenario. Both the amount of offshore wind installed and the level of curtailment are assessed. Then, these results are compared to a scenario with sector coupling included. The results show that while the introduction of a meshed grid can increase the amount of offshore wind installed towards 2050, sector coupling is expected to be a more important driver for increasing offshore wind installations. In addition, sector coupling can significantly decrease the level of offshore wind curtailment.

scholarly journals Going offshore or not: Where to generate hydrogen in future integrated energy systems?

2021 ◽  
Author(s):  
Juan Gea Bermúdez ◽  
Matti Juhani Koivisto ◽  
Lena Kitzing ◽  
Andrés Ramos ◽  
Rasmus Bo Bramstoft Pedersen
Keyword(s):  
Hydrogen Generation ◽  
Cost Effective ◽  
Energy System ◽  
Offshore Wind ◽  
Solar Pv ◽  
Integrated Energy Systems ◽  
The North ◽  
Integrated Energy System ◽  
Pv Generation

Hydrogen can be key in the energy system transition. We investigate the role of offshore hydrogen generation in a future integrated energy system, and its interaction with other system elements. By performing energy system optimisation in a model application of the Northern-central European energy system and the North Sea offshore grid towards 2050, we find that offshore hydrogen generation may likely only play a limited role, and that offshore wind energy has higher value when sent to shore in the form of electricity. Forcing all hydrogen generation offshore would lead to increased energy system costs (9-28 b\EUR2016/year by 2045). Under the assumed scenario conditions, hydrogen generation - both onshore and offshore - follows solar PV generation patterns. Combined with hydrogen storage, this is the most cost-effective solution to satisfy future hydrogen demand. Overall, we find that the role of future offshore hydrogen generation should not simply be derived from minimizing costs for the offshore sub-system, but by also considering the value that such generation would create for the whole integrated energy system. Based on our results, a stronger political effort to promote the integration of offshore wind in onshore energy markets via electrical connection is called for.

scholarly journals North Sea region energy system towards 2050: integrated offshore grid and sector coupling drive offshore wind power installations

2020 ◽  
Vol 5 (4) ◽  
pp. 1705-1712
Author(s):  
Matti Koivisto ◽  
Juan Gea-Bermúdez ◽  
Polyneikis Kanellas ◽  
Kaushik Das ◽  
Poul Sørensen
Keyword(s):  
Wind Power ◽  
North Sea ◽  
Energy System ◽  
Offshore Wind ◽  
Wind Power Plant ◽  
Offshore Wind Power ◽  
The North ◽  
The North Sea ◽  
Wind Curtailment ◽  
Power Installations

Abstract. This paper analyses several energy system scenarios towards 2050 for the North Sea region. With a focus on offshore wind power, the impacts of meshed offshore grid and sector coupling are studied. First, a project-based scenario, where each offshore wind power plant is connected individually to the onshore power system, is compared to a meshed grid scenario. Both the amount of offshore wind power installed and the level of curtailment are assessed. Then, these results are compared to a scenario with sector coupling included. The results show that while the introduction of a meshed grid can increase the amount of offshore wind power installed towards 2050, sector coupling is expected to be a more important driver for increasing offshore wind power installations. In addition, sector coupling can significantly decrease the level of offshore wind curtailment.

scholarly journals Going offshore or not: Where to generate hydrogen in future integrated energy systems?

2021 ◽  
Author(s):  
Juan Gea Bermúdez ◽  
Rasmus Bo Bramstoft Pedersen ◽  
Matti Juhani Koivisto ◽  
Lena Kitzing ◽  
Andrés Ramos
Keyword(s):  
Hydrogen Generation ◽  
Cost Effective ◽  
Energy System ◽  
Offshore Wind ◽  
Solar Pv ◽  
Integrated Energy Systems ◽  
The North ◽  
Integrated Energy System ◽  
Pv Generation

Hydrogen can be key in the energy system transition. We investigate the role of offshore hydrogen generation in a future integrated energy system, and its interaction with other system elements. By performing energy system optimisation in a model application of the Northern-central European energy system and the North Sea offshore grid towards 2050, we find that offshore hydrogen generation may likely only play a limited role, and that offshore wind energy has higher value when sent to shore in the form of electricity. Forcing all hydrogen generation offshore would lead to increased energy system costs (9-28 b\EUR2016/year by 2045). Under the assumed scenario conditions, hydrogen generation - both onshore and offshore - follows solar PV generation patterns. Combined with hydrogen storage, this is the most cost-effective solution to satisfy future hydrogen demand. Overall, we find that the role of future offshore hydrogen generation should not simply be derived from minimizing costs for the offshore sub-system, but by also considering the value that such generation would create for the whole integrated energy system. Based on our results, a stronger political effort to promote the integration of offshore wind in onshore energy markets via electrical connection is called for.

scholarly journals Solar Energy System for Brunei Residence

2021 ◽  
Vol 6 (4) ◽  
pp. 312-318
Author(s):  
Mohammad Yeakub Ali ◽  
Ahmad Syahmi Rahim ◽  
Seri Rahayu Ya'akub
Keyword(s):  
Solar Energy ◽  
Energy System ◽  
Simulation Software ◽  
Production Performance ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Energy Demands ◽  
Brunei Darussalam ◽  
Electrical Demand ◽  
Solar Photovoltaic System

Brunei Darussalam is a country that receives high amounts of solar irradiation annually as it is located near the equator. With the abundance of oil & natural gas resources, the country has one of the cheapest electricity costs in the world. This would in turn make solar power underutilized. The purpose of this project is to design a solar system for Brunei’s medium sized residence to meet the daily energy demands. A comprehensive analysis was conducted on the solar photovoltaic system for determining the optimum sized parts and components. The design process was divided into detailed sections so that the values are calculated using PVSyst simulation software. The simulation also predicted the specific energy production, performance evaluation, and the losses. Cost analysis was also conducted to find the efficiency and the feasibility of the system. The designed solar energy system has a capacity of 60 kWp, producing 75 MWh of usable energy annually. This system uses 66% of the energy available from the sun to generate electricity which covers the electrical demand of Brunei’s residences.

scholarly journals Going offshore or not: Where to generate hydrogen in future integrated energy systems?

2021 ◽  
Author(s):  
Juan Gea Bermúdez ◽  
Matti Juhani Koivisto ◽  
Lena Kitzing ◽  
Andrés Ramos ◽  
Rasmus Bo Bramstoft Pedersen
Keyword(s):  
Hydrogen Generation ◽  
Cost Effective ◽  
Energy System ◽  
Offshore Wind ◽  
Solar Pv ◽  
Integrated Energy Systems ◽  
The North ◽  
Integrated Energy System ◽  
Pv Generation

Hydrogen can be key in the energy system transition. We investigate the role of offshore hydrogen generation in a future integrated energy system, and its interaction with other system elements. By performing energy system optimisation in a model application of the Northern-central European energy system and the North Sea offshore grid towards 2050, we find that offshore hydrogen generation may likely only play a limited role, and that offshore wind energy has higher value when sent to shore in the form of electricity. Forcing all hydrogen generation offshore would lead to increased energy system costs (9-28 b\EUR2016/year by 2045). Under the assumed scenario conditions, hydrogen generation - both onshore and offshore - follows solar PV generation patterns. Combined with hydrogen storage, this is the most cost-effective solution to satisfy future hydrogen demand. Overall, we find that the role of future offshore hydrogen generation should not simply be derived from minimizing costs for the offshore sub-system, but by also considering the value that such generation would create for the whole integrated energy system. Based on our results, a stronger political effort to promote the integration of offshore wind in onshore energy markets via electrical connection is called for.

scholarly journals The use of simulation modelling for determining the capacity of railway lines in the Czech conditions

2020 ◽  
Vol 10 (1) ◽  
pp. 224-231
Author(s):  
Erik Tischer ◽  
Petr Nachtigall ◽  
Jaromír Široký
Keyword(s):  
Czech Republic ◽  
Traffic Flow ◽  
Software Tool ◽  
Simulation Modelling ◽  
Energy Performance ◽  
Simulation Software ◽  
The Czech Republic ◽  
Railway Line ◽  
Specialized Software ◽  
Railway Infrastructure

AbstractSimulation modelling is one way to determine the capacity of railway lines. The specialized software tool OpenTrack was used for simulation. The aim of this paper was to find out whether the OpenTrack simulation software can be used for the calculation of headway, and to compare the results with the methodology of the Railway Infrastructure Administration (SŽDC). Using the software tool, a detailed transport network model can be created including all its important characteristics. The simulation follows the movements and behaviour of trains with predefined parameters on the modelled railway line. OpenTrack allows for monitoring a range of parameters including not only train delays, train conflicts and train traffic flow, but also for instance train energy performance and headways. During the first stage of work with OpenTrack, a simulation model was created, not reflecting any existing infrastructure but including parameters typical of railway lines in the Czech Republic, such as the configuration of gridirons, length of station tracks, size of block sections, etc. This model was subsequently used for the simulation of type train set journeys, and a headway calculator was used for the calculation of headway values. These values were compared with the methodology used by the Railway Infrastructure Administration. The paper is concluded by the comparison of the above mentioned approaches.

scholarly journals Exergy Assessment and Thermo-Economic Analysis of Hybrid Solar Systems with Seasonal Storage and Heat Pump Coupling in the Social Housing Sector in Zaragoza

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1279
Author(s):  
Amaya Martínez-Gracia ◽  
Sergio Usón ◽  
Mª Teresa Pintanel ◽  
Javier Uche ◽  
Ángel A. Bayod-Rújula ◽  
...  
Keyword(s):  
Heat Pump ◽  
Social Housing ◽  
Energy System ◽  
Simulation Software ◽  
Solar Panels ◽  
Solar Systems ◽  
Under Construction ◽  
The Cost ◽  
Solar Resource ◽  
Solar Field

A real case study of an energy system based on a Solar Assisted Heat Pump (SAHP) fed by hybrid photovoltaic-thermal solar panels (PVT) and seasonal storage (SS) is presented in this paper. Exergy and exergy cost analyses are proposed as complementary methods for the assessment and better understanding of the efficiency of this cogeneration solar configuration. The system performance takes advantage of storage heat in summer, when the solar resource is high in Spain, and is then later consumed during the cold winter (heating season). The building is devoted to social housing, and it is currently under construction. The assessment is based on simulations developed using TRNSYS, a dynamic simulation software for energy systems. Results show that the unit exergy cost of the solar field is around 6. The cost of the seasonal storage is higher, about 13, and its formation is affected both by its own irreversibility and by the irreversibility of the PVT solar field. The cost of the heat delivered by the heat pump is around 15, being affected by all the upstream units and even by the grid. Besides, the analysis points out strategies for improving the system efficiency, such as increasing the size of the storage tank or improving the control strategy of the boiler.

scholarly journals Changing Technology or Behavior? The Impacts of a Behavioral Disruption

2021 ◽  
Vol 13 (11) ◽  
pp. 5861
Author(s):  
Marianne Pedinotti-Castelle ◽  
Pierre-Olivier Pineau ◽  
Kathleen Vaillancourt ◽  
Ben Amor
Keyword(s):  
Energy Transition ◽  
Energy System ◽  
Behavior Changes ◽  
Ghg Emission ◽  
The North ◽  
Behavioral Disruption ◽  
Transportation Sector ◽  
Key Factor ◽  
Additional Costs

Transportation is a key factor in the fight against climate change. Consumer behavior changes in transportation are underrepresented in energy policies, even if they could be essential to achieve the fixed GHG emission reduction targets. To help quantify the role of behaviors in energy transition and their implications on the dynamics of an energy system, this study is conducted using the North American TIMES Energy Model, adapted to Quebec (Canada). A behavioral disruption scenario (an increase in carpooling) is introduced in the model’s transportation sector and is compared to a massive electrification scenario. Our results highlight the fact that a behavioral disruption can lead to the same GHG emission reductions (65%) by 2050 as an electrification policy, while alleviating different efforts (such as additional electrical capacity and additional costs) associated with massive electrification. Moreover, the results are sensitive to behavior-related parameters, such as social discount rates and car lifetimes.

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