Hydro Energy Articles
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Understanding India-Pakistan water politics since the signing of the Indus Water Treaty
On 19 September 1960, the Indus Water Treaty (IWT) was signed between India and Pakistan, presumably resolving the conflict of Indus water sharing. Nevertheless, over the years the conflict has re-appeared, dragging both the riparian states into confrontation. This paper explores the reasons that lead to conflict despite the Indus water sharing having already been resolved by the IWT. ...
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A small island in the Indian Ocean offers big lessons on clean power
The Indonesian island Sumba is working to provide 100% renewable electricity to all 650,000 residents by 2025. As the sun sets on the small Indonesian island of Sumba, Danga Beru Haba begins weaving under the glow of a single incandescent lightbulb, the only one in her home. Although she is tired from working dawn to dusk in the fields surrounding her village of Kampung Kalihi, the sarong she is ...
By Ensia
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Modeling future changes in the North-Estonian hydropower production by using SWAT
Climate change is altering temperature, precipitation, and other climatic parameters, affecting sectors dependent on water resources, e.g. energy production. The purpose of this study is to analyze the possible influences of climate change on hydropower potential in North Estonia. In Estonian run-of-river hydropower plants, energy comes mainly from water volume. Thus, changes in hydropower ...
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EC support for UK power link raises Ireland’s offshore export potential
The European Commission (EC) announced November 18 it had given priority status to ISLES, a cluster of Irish Sea grid projects which would transmit power from proposed Irish offshore wind farms to the UK grid. There are currently five Irish offshore windfarm projects for a total 2.6 GW of capacity. The inclusion of ISLES in the EC’s list of “projects of common interest” allows ...
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Detection of inter-coil short circuits in coils of salient pole synchronous generator field winding on the basis of analysis of magnetic field in the machine
Abstract This paper deals with detection of inter-coil short circuits in coils of the salient poles synchronous generator excitement winding on the basis of the analysis of the magnetic field in the machine. Applying FEM to the generator model, magnetic field wave forms in the machine, on the points of interests, under both, faultless and faulty conditions were calculated. When results were ...
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Micro-Hydros Earn First Carbon Revenue in Nepal
MICRO-HYDROS EARN FIRST CARBON REVENUE IN NEPAL While the rugged mountains of rural Nepal don’t lend themselves to grid-fed electricity, their rivers, lakes, and glacial melt offer plenty of renewable resources for energy. Between 2007 and 2014, over 400 micro run-of-the-river hydropower plants were built by the Nepali government with help from the World Bank as part of the Nepal ...
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Energizing our green future
As world leaders come together at the UN General Assembly to adopt new sustainable development goals, climate change activists gear up for Climate Week in New York City and the Pope brings his message to the United Nations, a shared vision of our future is coming into clear focus. If we are to eradicate poverty, we need to tackle climate change. And since 2008, the $8.1 billion Climate ...
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The comparison of magnetic values obtained from hall probes and measuring coils in synchronous generators
Abstract This article gives a review of a part of measuring results obtained during factory tests and inspections of a wind mil power unit. Magnetic fields were measured by two different measuring methods and the results were compared consecutively. The article also gives the results of calculation of dynamic electromagnetic field by application of FEM to the model of a synchronous generator ...
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REN21 Renewables 2015 Global Status Report - Key Findings
There has been a rising awareness worldwide that renewable energy and energy efficiency are critical not only for addressing climate change, but also for creating new economic opportunities and for providing energy access to the billions of people still living without modern energy services. Over the past decade, and particularly in recent years, advances in renewable energy technologies, global ...
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The price of wind energy in the U.S. hits an all-time low
States hoping to increase their share of renewable energy to achieve the emissions reduction goals set forth in the President’s recently-announced Clean Power Plan may have just received an unexpected boost from wind energy. According to the U.S. Department of Energy’s “2014 Wind Technologies Market Report” released earlier this week, the prices offered by wind projects ...
By Ensia
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The impacts of organic matter on the distribution and methylation of mercury in a hydroelectric reservoir in Wujiang River, Southwest China
In order to understand the impacts of organic matter on geochemical process of Hg in hydroelectric reservoir, spatial and seasonal distributions of total mercury (THg) and methylmercury (MeHg) both in solid and liquid phases of sediment cores were investigated in Wujiangdu Reservoir (WJD) in Guizhou province, China. Four sampling sites with different intensities of cage aquaculture activities ...
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Department Of Energy awards $18 million to algae biofuel projects
On July 9, 2015, the U.S. Department of Energy (DOE) announced $18 million in funding for six projects to develop bioproducts and biofuels from algae. The funding is intended to reduce the cost of algae-based biofuels to less than $5 per gasoline gallon equivalent (gge) by 2019 to help reach DOE's target of $3 per gge for advanced algal biofuels by 2030. The projects that were selected for the ...
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Micropower system modeling with Homer
The HOMER Micropower Optimization Model is a computer model developed by the U.S. National Renewable Energy Laboratory (NREL) to assist in the design of micropower systems and to facilitate the comparison of power generation technologies across a wide range of applications. HOMER models a power system's physical behavior and its life-cycle cost, which is the total cost of installing and operating ...
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Three Pressure Retarded Osmosis (PRO) Processes
Abstract Pressure retarded osmosis (PRO) can be implemented on a number of water types, using different technologies and achieving various power outcomes. This paper presents the three most practical options: Option 1 - Seawater with river water, driving force 25 bar, power output 5-10 watt/m2 Option 2 - SWRO brine with wastewater, driving force 50 bar, power output 10-20 watt/m2 Option 3 - ...
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Hydropower installation
DSEP100 Mains Decoupling Relays for hydropower projects in remote locations in the Cumbrian Lake District, UK. Old decommissioned water wheels in Ambleside, Blencathra and Langdale have been recently refurbished and brought back into use as sophisticated hydropower turbines which are now working in parallel with the grid, supplementing the local electricity supply. The DSEP100 ...
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115. Calgary’s wind powered LRT an incredibly successful system: Nenshi
The C-train in Calgary is one of the greatest examples of electrified transport in Canada. It is overwhelmingly popular with residents – it boasts an average weekday ridership of 325,000. It has kick started smarter, denser development around its stations. And best of all it and the City of Calgary’s operations are 100 per cent powered by renewable energy. “It's hugely ...
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Implementation strategies and a cost/benefit comparison for compliance with an environmental flow regime in a Mediterranean river affected by hydropower
Compliance with the Water Framework Directive (WFD) of the European Union requires water managers to establish environmental flow regimes (EFR) in rivers across the continent. Few water agencies have examined the economic and social welfare impacts of implementing environmental flow requirements. We present the approach used by the Catalan Water Agency to calculate an EFR and estimate the ...
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Renewable energy progress report
What is the Renewable energy progress report and what is its purpose? The Renewable Energy Directive states that a progress report should be issued every two years. The purpose of this progress report is to assess Member States' progress in the promotion and use of renewable energy in line with the 2020 targets. In addition, it contains sections on thesustainability scheme for biofuels and ...
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How do you bring electricity to 620 million people?
Sub-Saharan Africa needs a more reliable energy supply. The way it chooses to meet that need will affect the entire planet. In South Africa, major cities are subject to regular power outages as electric utility Eskom periodically shuts down parts of its distribution system to take the pressure off the aging national grid. Whole areas of Cape Town and Johannesburg are without power for hours at a ...
By Ensia
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G7 Climate Vision requires Gargantuan Economic Shift
When leaders of the Group of Seven wealthy countries pledge to "decarbonize" the global economy, they're talking about a shift so dramatic that one analyst described it as a new Apollo mission. Like putting a man on the moon, it would require overcoming major hurdles related to technology and money and the political will - so far in short supply - to make it happen. Despite gains by renewable ...
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