renewable energy system Articles
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Hydrogen production on Utsira
The hydrogen plant on Utsira has started producing electricity. This means that the 10 households in the island community west of Karmøy are one step closer to becoming a selfsufficient hydrogen society. From the summer, 10 of the households on the island of Utsira will get all their electricity in the form of renewable energy. This is the world's first full-scale autonomous renewable ...
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Renewable energy systems: the environmental impact approach
High energy consumption and the world population increase will lead to shrinking reserves of fossil fuels. Concern about carbon dioxide emissions may discourage widespread dependence on fossil fuels and encourage the development and use of renewable energy systems employing a variety of technologies Renewable energy systems have themselves an environmental impact. Land use and material employed ...
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Financial incentives to promote renewable energy systems in European electricity markets: a survey
Renewable energy systems may contribute to sustainable development. Therefore, one of the challenges for energy policy is to ensure that renewable energy options have a fair opportunity to compete with other supply resources. This paper presents a survey on promotion mechanisms to enhance the market penetration of renewable energies in European electricity markets. Strategies include rebates and ...
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Collaborative Development and Demonstration of an Optimised Model for Remote Village Electrification Using Renewable Energy
This project aims to develop and demonstrate a highly replicable model for remote village electrification in India, using solar PV and other technologies. In doing so, Partner countries plan to build capacity within India’s renewable energy technical service provider network, and also improve the technical support for, and increase the sustainability of decentralized generation and renewable ...
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Renewable Energy Systems - Case Study
Overview Generating renewable electricity is an important way to reduce carbon dioxide (CO2) emissions and many countries are installing wind and solar power plants to help meet targets for cutting CO2. One drawback of these energy sources is their variability: the wind tends to blow intermittently and solar power is only available during the daytime. Hence renewable power plants either have to ...
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Optimal sizing of a hybrid energy system for a semi-arid climate using an evolutionary algorithm
The use of a genetic algorithm (GA) for optimal sizing of an off-grid hybrid renewable energy system (HRES) is reported. As a pre-feasibility analysis and to determine the appropriate HRES type to be studied, wind energy potential and solar irradiation are first examined for the considered region (Tehran, Iran). These are inputs of the algorithm, and are assessed throughout a year utilising ...
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Flywheel energy storage control for use with intermittent energy source
Systems used to extract renewable energy often are subject to suboptimal working conditions due to the intermittent nature of most renewable energy sources. The flywheel energy storage system suggested in this paper utilises an electronic clutch that engages and disengages the generator from the flywheel of the renewable energy system in an attempt to prevent the generator rotor from coming to a ...
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Quality Renewable Training Program in China and India
China’s and India’s demand for energy is increasing rapidly. Renewable energy is seen by both countries as an important component in satisfying future energy demand. Nevertheless, delivering affordable and reliable renewable energy services and achieving national goals set for renewable energy technologies to future power generation will be challenging without an extensive pool of knowledgeable ...
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Economic impact of the valuation of life cycle CO2 emissions from renewable and fossil energy systems
We use a Life Cycle Analysis (LCA) methodology and the Hotelling rule [1,2] to calculate the economic value of CO2 emissions reductions attained through a substitution of renewable energy systems for conventional energy systems in isolated power generation applications. The CO2 abatement value calculated in this way is used to estimate savings in electricity cost associated with PV and Wind ...
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Microhydro-Electric Systems Simplified
If you have a suitable site, harnessing the energy in a stream or creek can be the most cost-effective way to make renewable electricity. Compared to the sun and wind’s variability, a stream’s flow is relatively consistent, making microhydro-electric system output the most predictable of all the renewable energy (RE) electrical ...
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Take Your Bedroom Off the Grid
In recent years there has been a growing interest in renewable energy. The problem is that many people cannot afford to implement a complete renewable energy system all at once. As interest grows and renewable energy equipment prices fall, people will not be ready to take advantage unless the industry and non-profits undertake serious public education. Redwood Alliance, an environmental ...
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Performances of natural dye–sensitised solar cells - a brief review
Dye–sensitised solar cells (DSCs), also called as photoelectrochemical cells, have the potential of commercial viability and are the most promising photovoltaic devices among the new generation of renewable energy systems. The dye used is responsible for the light harvesting efficiency and electron injection efficiency of the DSC. Vast amount of work has been done on the performance of DSCs with ...
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Increasing of the quality of energy from stochastic fluctuating sources using dynamic power conditioning
The stochastic fluctuating offer of wind energy limits the capacity of supply in electrical grids for technical and economical reasons. To increase the supply, a concept of dynamic conditioning with the objective of increasing the quality of supply was developed. The concept envisages supporting and managing the electrical grid, respectively by compensating of active and reactive power with ...
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How sustainable are our energy technologies? Photovoltaics and wind energy systems as examples
The energy sector plays a key role within the concept of Sustainable Development. Therefore, sustainability aspects should be considered when new energy systems are assessed. How does a specific supply option contribute to a desired sustainable development of the energy system? To answer this question, indicators are needed. These should cover the most significant sustainability issues of the ...
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Energy technologies for rural areas ? decentralised power generation through MARKAL modelling: a case study
Due to shortage of power, extremely subsidised tariffs, poor financial recovery, long transmission lines, there exists a very poor demand-supply balance in the rural energy sectors of India. MARKAL bases analysis of a village-group in western India reveals that there is a potential of reducing the electricity demand by about 18% as compared to the business-as-usual case through adopting energy ...
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Are solar farms threatening feed-in-tariffs?
A Government review is expected to clarify how feed-in-tariff will proceed without undermining confidence in the PV industry. A government announcement is expected this week on the fate of the feed-in-tariff (FIT) scheme, with a review of the policy, originally planned for 2012. This has been brought forward in response to an increasing number of solar farms being granted planning permission. ...
By Vital Energi
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Adiabatic compressed air energy storage plants for efficient peak load power supply from wind energy: the European project AA-CAES
With the continuing expansion of electricity generation from fluctuating wind power the grid-compatible integration of renewable energy sources is becoming an increasingly important aspect. Adiabatic compressed air energy storage power plants have the potential to make a substantial contribution here. The present article describes activities and first results relating to this technology that are ...
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Solar thermal power plants for the Spanish electricity market
Solar thermal power plants are at present the cheapest technology for solar electricity production. At good sites Levelised Electricity Costs (LEC) of 11 Ct/kWh have been achieved in commercially operated power plants. Economy of scale and further technical improvements will reduce the LEC for future projects. On the 27th of March 2004 in Spain the existing feed-in-law has been modified in order ...
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Project - Emerging Technologies Initiative
The Climate Institute seeks partnerships with startup initiatives and emerging technology development efforts that transform renewable energy systems. We welcome initiatives and demonstration projects to help advance meaningful climate solutions. The Climate Institute supports our colleagues and partners working on emerging technologies by providing research assistance, intern support, ...
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Power management policies and control of hybrid electric vehicle
With increasing concern over the environment and ever-stringent emission regulations, the use of hybrid electric vehicle (HEV) is being investigated as an alternative form of transportation. A hybrid vehicle combines the advantages of an electric drive and an internal combustion engine. This paper proposes the necessary hardware and software needed for an effective control of the electrical part ...
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