scholarly journals The Need for Renewable Energy Resources and the Reasons Why the United States and Russia Lag Behind

2020 ◽  
Vol 15 (2) ◽  
Keyword(s):  
United States ◽  
Renewable Energy ◽  
The United States ◽  
Energy Resources ◽  
Renewable Energy Resources

Shooting for Perfection: Hawaii’s Goal of 100% Renewable Energy Use

2018 ◽  
Vol 2 (1) ◽  
pp. 1-9
Author(s):  
Barry D. Solomon ◽  
Adam M. Wellstead
Keyword(s):  
United States ◽  
Renewable Energy ◽  
Power Systems ◽  
Energy Use ◽  
Population Distribution ◽  
The United States ◽  
Renewable Portfolio Standard ◽  
Renewable Energy Resources ◽  
Almost All

In the United States, 29 states, Washington, D.C. and three territories have adopted a mandatory Renewable Portfolio Standard (RPS) for their electric power systems, while eight states and one territory have set renewable energy goals. Many foreign nations have adopted an RPS as well. Thus far, almost all RPSs across the United States have met their interim goals with targets and timetables that vary widely. Hawaii’s RPS is the most ambitious, with a 100% target set for 2045 (though Vermont set a 75% target for 2032). This paper provides a case study of the Hawai’i RPS. The paper focuses on geographical issues and perspectives that may tease out the course of the states’ electricity future: sensitivity to climate change, population distribution, interisland rivalries, as well as the need for greater energy storage and complementary policies. An important complexity is the challenge of meeting electricity demand on six separate Hawaiian Islands (because of the lack of an interisland transmission cable), although all of them have substantial renewable energy resources.

Importance of Turning to Renewable Energy Resources with Hydrogen as a Promising Candidate and on-board Storage a Critical Barrier

2005 ◽  
Vol 895 ◽  
Author(s):  
Anne C. Dillon ◽  
Brent P. Nelson ◽  
Yufeng Zhao ◽  
Yong-Hyun Kim ◽  
C. Edwin Tracy ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Hydrogen Storage ◽  
Fossil Fuels ◽  
Storage System ◽  
The United States ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Hydrogen Storage System ◽  
World Energy ◽  
Storage Technologies

AbstractThe majority of the world energy consumption is derived from fossil fuels. Furthermore, the United States (US) consumption of petroleum vastly exceeds its production, with the majority of petroleum being consumed in the transportation sector. The increasing dependency on foreign fuel resources in conjunction with the severe environmental impacts of a petroleum-based society dictates that alternative renewable energy resources be developed. The US Department of Energy's (DOE's) Office of Energy Efficiency and Renewable Energy and the Office of Basic Energy Sciences are currently promoting a vehicular hydrogen-based energy economy. However, none of the current on-board storage technologies are suitable for practical and safe deployment. Significant scientific advancement is therefore still required if a viable on-board storage technology is to be developed. A detailed discussion of the benefits of transitioning to a hydrogen-powered automotive fleet as well as the tremendous technical hurdles faced for the development of an on-board hydrogen storage system are provided here. A novel class of theoretically predicted nanostructured materials that could revolutionize hydrogen storage materials is also presented.

scholarly journals Facilitating Power Grid Decarbonization with Distributed Energy Resources: Lessons from the United States

2021 ◽  
Vol 46 (1) ◽  
Author(s):  
Bo Shen ◽  
Fredrich Kahrl ◽  
Andrew J. Satchwell
Keyword(s):  
United States ◽  
Renewable Energy ◽  
Business Models ◽  
Regulatory Reform ◽  
The United States ◽  
Energy Resources ◽  
Distributed Energy Resources ◽  
Annual Review ◽  
Publication Date ◽  
Distributed Energy

Decarbonizing power grids is an essential pillar of global efforts to mitigate climate change impacts. Renewable energy generation is expected to play an important role in electricity decarbonization, although its variability and uncertainty are creating new flexibility challenges for electric grid operators that must match supply with constantly changing demand. Distributed energy resources (DERs)—including distributed generation, demand response, and distributed energy storage—can play an important role in providing the flexibility needed to integrate high penetrations of renewable energy. This article examines federal and state enabling policies and regulations for DER, market strategies and business models that have facilitated DER expansion, and key emerging challenges for DER in the United States. Based on a review of the US experience, the article offers lessons for other countries, focusing on the role and limits of policy, the facilitative role of utility regulatory reform, the need to balance different interests in tariff design, the benefits of DER participation in wholesale markets, and the importance of proactive interconnection policies. Expected final online publication date for the Annual Review of Environment and Resources, Volume 46 is October 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

scholarly journals Economic Evaluation of “Green Energy” Potential in Nagorno-Karabakh and Neighboring Regions

2021 ◽  
Vol 15 (3) ◽  
pp. 71
Author(s):  
Nargiz Hajiyeva ◽  
Ali Karimli
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
The United States ◽  
Green Energy ◽  
Energy Resources ◽  
Energy Sources ◽  
Gradual Transition ◽  
Renewable Energy Resources ◽  
Energy Potential ◽  
The World

The paper focuses on the economic opportunities of renewable energy resources (RES) in Azerbaijan's liberated territories. Armenia illegally exploited energy and other natural resources in Nagorno-Karabakh and its surrounding areas during its 30-year occupation. As a result, it is not surprising that the establishment of a "green energy" zone in the territories has been given high priority in the post-liberation period. Traditional energy sources are currently the most common source of electricity generation in the world. In this regard, the world's ever-increasing energy demand accelerates nation-states' gradual transition to green energy. Electricity generation from renewable energy sources is increasing in many countries, including the United States. In Nagorno-Karabakh and seven neighboring regions, the state is focusing on the production and effective use of renewable energy resources. As a result, ensuring harmony in the gradual use of renewable and traditional energy resources will be essential to the country's socioeconomic development, environmental sustainability, and energy security. The economic analysis of renewable energy potential and the establishment of a “green energy” industry are conducted in the article.

Renewable Energy Resources for Better Economics and Sustainable Living in Rural and Desert Areas

2019 ◽  
Vol 10 (12) ◽  
pp. 1165-1171
Author(s):  
Karl Gatterer ◽  
◽  
Salah Arafa ◽  
Keyword(s):  
Renewable Energy ◽  
Poverty Reduction ◽  
Energy Resources ◽  
Green Economy ◽  
Renewable Energy Resources ◽  
Economic Activities ◽  
Energy Materials ◽  
Sustainable Living ◽  
Sustainable Community Development ◽  
Access To Knowledge

Reliable and affordable energy is the key for the socio-economic development in rural and desert communities worldwide. While energy can be used for consumption purposes such as Lighting, Access to Information, Comfort and Entertainment, productive use of renewable energy is the key enabler for SMEs and Economy to grow. The paper examines the complex interactions among Energy, Materials, Water, Food, Building, Employment and Environment. It also discusses the implementation of renewable energy technologies to overcome some of barriers faced by rural villages and desert communities. It shows some of the special applications and approaches used over the past few decades in energy conversion, consumption and conservation to achieve poverty reduction, social justice and sustainable development. Field experiences in Basaisa projects, Egypt showed that open free dialogues with all stakeholders, site-specific education and training, appropriate local financing systems and access to knowledge are key-elements and essential factors for achieving green economy and sustainable community development. The coming decade will see a continued expansion of knowledge about renewable energy resources and its useful applications as systems friendly to the environment and as tools for economic activities, sustainable living and growth in rural and desert communities.

Management of Renewable Energy Resources in India

2012 ◽  
Vol 2 (11) ◽  
pp. 121-124
Author(s):  
Savitha C Savitha C ◽  
◽  
Dr. S. Mahendrakumar Dr. S. Mahendrakumar
Keyword(s):  
Renewable Energy ◽  
Energy Resources ◽  
Renewable Energy Resources

THE ANALYSIS OF OPERATION MODES OF ENERGY STORES IN AUTONOMOUS HYBRID POWER PLANTS WITH RENEWABLE ENERGY RESOURCES

2018 ◽  
pp. 55-67
Author(s):  
S. G. Obukhov ◽  
I. A. Plotnikov ◽  
V. G. Masolov
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Low Frequency ◽  
Rechargeable Batteries ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Hybrid Power ◽  
Operation Modes ◽  
Energy Stores ◽  
Energy Store

The paper presents the results of the comparative analysis of operation modes of an autonomous hybrid power complex with/without the energy store. We offere the technique which defines the power characteristics of the main components of a hybrid power complex: the consumers of the electric power, wind power and photo-electric installations (the last ones have been constructed). The paper establishes that, in order to compensate the seasonal fluctuations of power in autonomous power systems with renewable energy resources, the accumulative devices are required, with a capacity of tens of MWh including devices that are capable to provide energy storage with duration about half a year. This allows abandoning the storage devices for smoothing the seasonal fluctuations in the energy balance.The analysis of operation modes of energy stores has shown that for a stock and delivery of energy on time intervals, lasting several hours, the accumulative devices with rather high values of charging and digit power aren't required. It allows using the lead-acid rechargeable batteries of the deep category for smoothing the daily peaks of surplus and a capacity shortage. Moreover, the analysis of operation modes of energy stores as a part of the hybrid complexes has demonstrated that in charging/digit currents of the energy store the low-frequency and high-frequency pulsations of big amplitude caused by changes of size of output power of the renewable power installations and loading are inevitable. If low-frequency pulsations (the period of tens of minutes) can partially be damped due to the restriction of size of the maximum charging current of rechargeable batteries, then it is essentially impossible to eliminate high-frequency pulsations (the period of tens of seconds) in the power systems with the only store of energy. The paper finds out that the combined energy store having characteristics of the accumulator in the modes of receiving and delivery of power on daily time intervals, and at the same time having properties of the supercondenser in the modes of reception and return of impulses of power on second intervals of time is best suited to requirements of the autonomous power complexes with renewable energy resources.

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.

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