scholarly journals In-Stream Tidal Energy Resources in Macrotidal Non-Cohesive Sediment Environments: Effect of Morphodynamic Changes at Two Bays in the Upper Gulf of California

2020 ◽  
Author(s):  
Anahí Bermúdez-Romero ◽  
Vanesa Magar ◽  
Markus S. Gross ◽  
Victor M. Godínez ◽  
Manuel López-Mariscal ◽  
...  
Keyword(s):  
High Resolution ◽  
Gulf Of California ◽  
Energy Production ◽  
Energy Resource ◽  
Tidal Energy ◽  
Potential Effect ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Error Statistics ◽  
High Resolution Models

While many in-steam tidal energy resource studies have been carried out globally, very few studies have assessed the effect of seabed changes on tidal energy resources. For coastal regions in particular, where the seabed is generally more mobile than in deep waters, bathymetric evolution could have a significant effect on tidal energy production. Here two high-resolution models, one purely hydrodynamic and one morphodynamic, are used to analyse the potential effect of natural morphodynamic evolution on tidal energy resources at two macro-tidal sandy bays, Adaír Bay and San Jorge Bay, in the Upper Gulf of California, Mexico. The high-resolution models are validated using a low-resolution model and ADCP observations to assess the agreement between model predictions and observations of tides at three ADCP moorings within the domain of interest. The models’ skill is evaluated using several error statistics such as the mean relative error, the root mean square error (RMSE), and the correlation coefficient. It was found that the regions with the largest bed changes, and also the largest renewable energy resources, were near the shore. Moreover, the results indicated a good correlation between a) regions with the most significant depth changes, and b) the regions where the difference in annual energy production with and without depth change was largest. Finally, the morphodynamic model was run for two years, and the evolution of a zonal profile (in the west-east direction) off the coast at the southeastern corner of Adaír Bay was inspected. This profile evolved towards a featureless equilibrium profile, in good agreement with the morphological classification for macro-tidal sandy environments and with the model assumptions. But most importantly, this natural evolution would not be detrimental to tidal energy exploitation at the site.

scholarly journals In-Stream Tidal Energy Resources in Macrotidal Non-Cohesive Sediment Environments: Effect of Morphodynamic Changes at Two Bays in the Upper Gulf of California

2021 ◽  
Vol 9 (4) ◽  
pp. 411
Author(s):  
Anahí Bermúdez-Romero ◽  
Vanesa Magar ◽  
Markus S. Gross ◽  
Victor M. Godínez ◽  
Manuel López-Mariscal ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Gulf Of California ◽  
Energy Production ◽  
Energy Resource ◽  
Region Of Interest ◽  
Tidal Energy ◽  
Potential Effect ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Error Statistics

Because of the need to diversify the renewable energy matrix and because hydrokinetic tidal energy technologies are mature, many in-stream tidal energy resource studies are available globally. Still, there are many questions regarding the effect of seabed changes on tidal energy resources. For coastal regions in particular, where the seabed is generally more mobile than in deep waters, bathymetric evolution could significantly affect tidal energy production. Here, two models are used to analyse the potential effect of natural morphodynamic change on tidal energy resources at two macro-tidal sandy bays, Adaír Bay and San Jorge Bay, in the Upper Gulf of California, Mexico. One of the models is (purely) hydrodynamic, and the other is a morphodynamic model (with hydrodynamic–morphodynamic coupling). The models are validated against tidal current observations obtained with acoustic Doppler current profilers in the region of interest, using three different error statistics, which showed good agreement between models and observations. The results also showed that the most significant bed changes and the largest renewable energy resources are located near the shore. Moreover, there was a good correlation between (a) regions with the most significant depth changes and (b) the areas where the difference in annual energy production with and without depth change was largest. Finally, a two-year simulation with the morphodynamic model permitted to analyse the seabed evolution of a zonal profile off Punta Choya, the headland between the two bays. This profile evolved towards a featureless equilibrium, as expected from the morphological classification for macro-tidal sandy environments under a dominant tidal forcing. However, most importantly, this natural evolution would not be detrimental to tidal energy exploitation at the site.

scholarly journals Exploring the Grid Value of Offshore Wind Energy in Oregon

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4435
Author(s):  
Travis C. Douville ◽  
Dhruv Bhatnagar
Keyword(s):  
Wind Energy ◽  
Cost Model ◽  
Energy Resource ◽  
Energy Resources ◽  
Offshore Wind ◽  
Offshore Wind Energy ◽  
Renewable Energy Resources ◽  
Energy Potential ◽  
Resource Complementarity ◽  
Wind Energy Potential

The significant offshore wind energy potential of Oregon faces several challenges, including a power grid which was not developed for the purpose of transmitting energy from the ocean. The grid impacts of the energy resource are considered through the lenses of (i) resource complementarity with Variable Renewable Energy resources; (ii) correlations with load profiles from the four balancing authorities with territory in Oregon; and (iii) spatial value to regional and coastal grids as represented through a production cost model of the Western Interconnection. The capacity implications of the interactions between offshore wind and the historical east-to-west power flows of the region are discussed. The existing system is shown to accommodate more than two gigawatts of offshore wind interconnections with minimal curtailment. Through three gigawatts of interconnection, transmission flows indicate a reduction of coastal and statewide energy imports as well as minimal statewide energy exports.

Energy Optimization and Power Stack Shed Reduction of Oil Depots by using Renewable Energy Resources

2021 ◽  
Vol 4 (2) ◽  
pp. 125-130
Author(s):  
Muhammad Azhar Mahmood ◽  
Muhammad Kamran Liaqat Bhatti ◽  
S. Raza ◽  
M. Riaz
Keyword(s):  
Renewable Energy ◽  
Wind Energy ◽  
Energy Management ◽  
Unit Cost ◽  
Research Work ◽  
Energy Resource ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Oil Sector ◽  
Continuous Power

Most of the industries including the oil sector are looking forward towards the renewable energy resources with proper energy management system (EMS) as it is the need of time. For this purpose, solar and wind energy are the renewable energy resources, which are obtained from natural resources and produce clean and environment -friendly electrical energy and can be used for oil depots. The proper utilization of solar and wind energy from natural resource may result in economical and cost-effective EMS. In the proposed research work, an effective energy management demonstration is delivered to ensure the ceaseless flexibility of power. Furthermore, reduction of production per unit cost to the oil sector industry by utilizing multiple objectives streamlining. In the proposed oil depot, connected loads are divided into Shiftable and Non-Shiftable loads and then apply Branch and Bound Algorithm (BnB) with binary integer linear programming (BILP). By using the BnB technique, selected shiftable loads are shifted to the low cost energy resource automatically and resultantly, we get the low price unit cost and continuous power supply. Simulation results for the above-mentioned research work are performed on MATLAB. The proposed technique helps to reduce the power stack shedding issue as well.

scholarly journals Green Economy and Renewable Energy Focusing on the Biomass Energy Source

2016 ◽  
Vol 9 (3) ◽  
pp. 56 ◽  
Author(s):  
Mohammed Ebrahim Hussien ◽  
Chamhuri Siwar ◽  
Rashidah Zainal Alam ◽  
Abdul Hamid Jafar ◽  
Norasikin Ahmad Ludin
Keyword(s):  
Energy Source ◽  
Sustainable Development ◽  
Renewable Energy ◽  
Environmental Sustainability ◽  
Energy Resource ◽  
Biomass Energy ◽  
Energy Resources ◽  
Green Economy ◽  
Renewable Energy Resources ◽  
Energy And Environment

<p>Since conventional energy resources are major source of CO<sub>2</sub> emission, over reliance on fossil fuels has raised questions on environmental sustainability. On way to address these multi-faceted issues of conventional energy sources, the sustainability of energy and environment is through the green economy approach. As such, this paper aims to discuss the concept of green economy in relation with renewable energy. The interdependence of green economy and environmental quality as well as the compatibility of green economy approach with the notion of sustainable development are demonstrated in the paper. Green economy approach fulfils the methodological gaps that exist in the growth models. It is believed that the best economic tool to attain sustainable development goals is by integrating social, economic and environmental elements. Furthermore, energy is believed to be a significant player in determining the greenness of the economy and sustainability as it has economic and environmental value. In addition, this study illustrates the significance of biomass energy resource and CO<sub>2</sub> emissions from fossil fuel combustion. The illustration framework justifies that biomass is the determinant renewable energy source to be a proxy for renewable energy resources. Similarly, it justifies that CO<sub>2</sub> emission of energy sector is considerably significant to represent the CO<sub>2</sub> emissions of the atmosphere.</p>

Energy Efficient Strategies and Renewable Energy Technologies for Desalination

2011 ◽  
Author(s):  
Joseph G. Jacangelo ◽  
Joan A. Oppenheimer ◽  
Arun Subramani ◽  
Mohammad Badruzzman
Keyword(s):  
Renewable Energy ◽  
Reverse Osmosis ◽  
Energy Resource ◽  
High Energy ◽  
Energy Resources ◽  
Feed Water ◽  
Renewable Energy Resources ◽  
Renewable Energy Resource ◽  
Produce Water ◽  
The Cost

Energy is often the most significant factor in the affordability and sustainability of treating various different source waters with reverse osmosis membrane facilities. More than 33% of the cost to produce water using reverse osmosis (RO) technology is attributed to electrical demands. The largest energy-consuming component of the overall treatment are the high pressure pumps required to feed water to the process. Because of the high energy burden and production of greenhouse gas (GHG) emissions, renewable energy is being increasingly considered for desalination projects. The selection of the appropriate renewable energy resource depends on several factors, including plant size, feed water salinity, remoteness, availability of grid electricity, technical infrastructure, and the type and potential of the local renewable energy resource. The cost of desalination with renewable energy resources, as opposed to desalination with conventional energy sources, can be an important alternative to consider when reduced environmental impact and lower gas emissions are required. Considering the proposed climate protection targets that have been set and the strong environmental drivers for lowered energy usage, future water desalination and advanced water treatment systems around the world could be increasingly powered by renewable energy resources. In addition to renewables, energy optimization/minimization is deemed critical to desalting resource management. Methods employed include enhanced system design, high efficiency pumping, energy recovery devices and use of advanced membrane materials.

A Feasibility Study on Hybrid Use of Ocean Renewable Energy Resources Around Japan

2013 ◽  
Author(s):  
Tomoki Taniguchi ◽  
Shigesuke Ishida ◽  
Yoshimasa Minami
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Wind Energy ◽  
Energy Resource ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Japanese Coast ◽  
Ocean Renewable Energy ◽  
Resource Needs ◽  
Sea Area

This paper addressed assessing feasibility of hybrid use of ocean renewable energy, such as wave and wind energy around Japanese coast. At first, wave and wind energy theoretical potentials were calculated and, in the second step, correlation coefficient between wave and wind energy was computed around Japanese coast. Sea area suitable for hybrid use of ocean renewable energy resources is supposed to have high potential for some types of energy resources. Furthermore, correlation of power generation between wave and wind energy resources should be low because one energy resource needs to complement another one for stabilizing power generation. Based on the assumptions, feasibility of wind and wave energy was evaluated on some sea areas where R&D project are ongoing.

scholarly journals A Complete Power Demand Distribution using Renewable Electricity Generation System for India by Incorporating Solar, Wind, Thermal and Biomass Energy Resources

2019 ◽  
Vol 9 (2S2) ◽  
pp. 623-628
Keyword(s):  
Power Generation ◽  
Solar Wind ◽  
Electricity Generation ◽  
Energy Resource ◽  
Biomass Energy ◽  
Energy Resources ◽  
Power Demand ◽  
Renewable Energy Resources ◽  
Generation System ◽  
Demand Distribution

In India the electricity demand is growing rapidly day by day due to various increasing residential, official and organizational buildings which requires more power. Electricity generation system is dominated by a hybrid renewable energy resources like wind and solar, approximately 35% from 2007 to till now, still power shutdown is applied compulsory by the Indian Government. In order to improve the amount of power generation to 100% with increased thermal, fossil-fueled, and bio-gas power generation is converted into complete solar, wind and thermal including peaking options. In order to fulfil the demand, the wind capacity is increased from 35% into 100% by incorporating solar and thermal. Incorporating various energy systems into stand alone power grid, the highest power demand can be fulfilled. This paper applied an application for mixing various energy resource for increasing the power generation and production.

scholarly journals Eco-Friendly Education Facilities: The Case of a Public Education Building in South Korea

2018 ◽  
Vol 8 (10) ◽  
pp. 1733
Author(s):  
Eunil Park ◽  
Angel del Pobil
Keyword(s):  
Renewable Energy ◽  
South Korea ◽  
Energy Production ◽  
Technical Information ◽  
Energy Resources ◽  
Future Research ◽  
Renewable Energy Resources ◽  
Research Areas ◽  
Cost Of Energy ◽  
Renewable Energy Production

Since the importance and effects of national energy policies, plans, and roadmaps were presented in South Korea, the role of renewable energy resources has received great attention. Moreover, as there is significant reasoning for reducing and minimizing nuclear and fossil fuel usage in South Korean national energy plans, several academic scholars and implementers have expended significant effort to present the potential and feasibility of renewable energy resources in South Korea. This study contributes to these efforts by presenting potential sustainable configurations of renewable energy production facilities for a public building in South Korea. Based on economic, environmental, and technical information as well as the presented simulation results, it proposes an environmentally friendly renewable energy production facility configuration that consists of photovoltaic arrays, battery units, and a converter. Subsidies for installing and renovating such facilities are also considered. The potential configuration indicates $0.464 as the cost of energy, 100% of which is renewable. Potential limitations and future research areas are suggested based on the results of these simulations.

scholarly journals Exploring Renewable Energy Resources Using Remote Sensing and GIS—A Review

Resources ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 149 ◽  
Author(s):  
Avtar ◽  
Sahu ◽  
Aggarwal ◽  
Chakraborty ◽  
Kharrazi ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Renewable Energy ◽  
Case Studies ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Remote Sensing And Gis ◽  
Energy Resources ◽  
Geographical Information ◽  
Renewable Energy Resources ◽  
The World

Renewable energy has received noteworthy attention during the last few decades. This is partly due to the fact that fossil fuels are depleting and the need for energy is soaring because of the growing population of the world. This paper attempts to provide an idea of what is being done by researchers in remote sensing and geographical information system (GIS) field for exploring the renewable energy resources in order to get to a more sustainable future. Several studies related to renewable energy resources viz. geothermal energy, wind energy, hydropower, biomass, and solar energy, have been considered in this paper. The focus of this review paper is on exploring how remote sensing and GIS-based techniques have been beneficial in exploring optimal locations for renewable energy resources. Several case studies from different parts of the world which use such techniques in exploring renewable energy resource sites of different kinds have also been included in this paper. Though each of the remote sensing and GIS techniques used for exploration of renewable energy resources seems to efficiently sell itself in being the most effective among others, it is important to keep in mind that in actuality, a combination of different techniques is more efficient for the task. Throughout the paper, many issues relating to the use of remote sensing and GIS for renewable energy are examined from both current and future perspectives and potential solutions are suggested. The authors believe that the conclusions and recommendations drawn from the case studies and the literature reviewed in the present study will be valuable to renewable energy scientists and policymakers.

scholarly journals In-Stream Energy by Tidal and Wind-Driven Currents: An Analysis for the Gulf of California

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1095
Author(s):  
Vanesa Magar ◽  
Victor M. Godínez ◽  
Markus S. Gross ◽  
Manuel López-Mariscal ◽  
Anahí Bermúdez-Romero ◽  
...  
Keyword(s):  
Tidal Current ◽  
Gulf Of California ◽  
Energy Production ◽  
Three Dimensional ◽  
Energy Resources ◽  
Sediment Type ◽  
Tidal Power ◽  
Tidal Stream ◽  
Wind Driven Currents ◽  
Hycom Model

We analyzed the peak spring tidal current speeds, annual mean tidal power densities ( T P D ) and annual energy production ( A E P ) obtained from experiment 06.1, referred as the “HYCOM model” throughout, of the three dimensional (3D), global model HYCOM in an area covering the Baja California Pacific and the Gulf of California. The HYCOM model is forced with astronomical tides and surface winds alone, and therefore is particularly suitable to assess the tidal current and wind-driven current contribution to in-stream energy resources. We find two areas within the Gulf of California, one in the Great Island Region and one in the Upper Gulf of California, where peak spring tidal flows reach speeds of 1.1 m per second. Second to fifth-generation tidal stream devices would be suitable for deployment in these two areas, which are very similar in terms of tidal in-stream energy resources. However, they are also very different in terms of sediment type and range in water depth, posing different challenges for in-stream technologies. The highest mean T P D value when excluding TPDs equal or less than 50 W m−2 (corresponding to the minimum velocity threshold for energy production) is of 172.8 W m−2, and is found near the town of San Felipe, at (lat lon) = (31.006–114.64); here energy would be produced during 39.00% of the time. Finally, wind-driven currents contribute very little to the mean T P D and the total A E P . Therefore, the device, the grid, and any energy storage plans need to take into account the periodic tidal current fluctuations, for optimal exploitation of the resources.

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