نتایج جستجو برای: renewable energy resources

تعداد نتایج: 918714  

2014
Nils Koldrack

The energy revolution in Germany is a nationally and internationally highly acclaimed and debated topic. The phase-out of nuclear energy by the end of 2022 opens the door to enter the age of renewable energy. Energy system of the future should be eco-friendly and secure. Currently, Germany is a pioneer of this global development. The implementation of the energy revolution implicates increased ...

2012
Kwok W. Cheung

The restructured electric power industry has brought new challenges and concerns for the secured operation of stressed power systems. As renewable energy resources, distributed generation, and demand response become significant portions of overall generation resource mix, smarter or more intelligent system dispatch technology is needed to cope with new categories of uncertainty associated with ...

Journal: :محیط شناسی 0
داوود منظور دانشیار دانشکدۀ اقتصاد، دانشگاه امام صادق مجید فرمد دکتر مهندسی برق، دانشگاه تهران، دانشکدۀ مهندسی برق وحید آریان پور کارشناس ارشد انرژی، دانشگاه صنعتی شریف، دانشکدۀ مکانیک احسان الدین شفیعی دکتر مکانیک، دانشگاه صنعتی شریف، دانشکدۀ مهندسی مکانیک

introduction despite the abundant renewable energy sources, the iranian energy sector relies almost entirely on fossil fuel energy resources. power sector is dominant source of co2emissions and responsible for about 35% of total co2 emissions in the country. additionally, long-term electricity demand of iran is expected to grow quickly, which in turn requires extensive investment to meet the gr...

2011
Lu Wang Dingguo Chen

Introduction Climate change and environmental concerns are tremendously influencing and shaping the future of the power industry. As a positive consequence, there has been a remarkable, rapid increase in the past several years in the megawatts produced by renewable energy resources across the globe, and this trend will continue for the next decades. These renewable energy resources, including w...

2015
Andrea Vallati Stefano Grignaffini Pietro Buzzini

Optimization of energy production systems is a relevant issue that must be considered in order to follow the fossil fuels consumption reduction policies and CO2 emission regulation. Increasing electricity production from renewable resources (e.g., photovoltaic systems and wind farms) is desirable but its unpredictability is a cause of problems for the main grid stability. A system with multiple...

2013
Mehtap Dursun

Although conventional energy resources are widely used for electricity generation globally as well as in Turkey, the renewable energy resources that do not deteriorate environmental quality and economic efficiency are increasingly favored to meet the energy demands in a sustainable way. Alternatively, limitations on land availability and high initial investment costs impede the development of r...

2016
Avtar Singh

Renewable energy sources i.e., energy generated from solar, wind, biomass, hydro power, geothermal and ocean resources are considered as a technological option for generating clean energy. This paper presents the Solar-Wind hybrid Power system that harnesses the renewable energies in Sun and Wind to generate electricity. System control relies mainly on micro controller. It ensures the optimum u...

Journal: :African Journal of Environmental Science and Technology 2020

2013
Sheng S. Zhang

INTRODUCTION Today’s electricity generation and transportation depend heavily on fossil fuels. As such, electricity generation and transportation have become two major sources of CO2 emissions leading to global warming. The concerns over environmental pollution and finite fossil fuel resources have spurred great interest in generating cleaner electricity from renewable energy sources such as so...

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