hydropower electrical system Articles

  • 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, ...

  • Intro to Hydropower Part:2 Measuring head & flow

    Measuring the stream course—Anna and Joe work downstream, shooting vertical drop (head) with a sight level, and getting a rough measurement of the pipe run at the same time. Small-scale hydro is the only renewable energy source that works for you 24 hours a day, 7 days a week. In the first article in this series (HP103), I explained the basics of hydroelectric system theory, and ...

  • How to make hydropower more environmentally friendly

    Hydropower provides 85 percent of the world’s renewable electricity, but comes with a hefty environmental price tag. Here’s what some are doing to fix that. Humanity got its first large-scale electricity thanks to hydropower. On Aug. 26, 1895, water flowing over Niagara Falls was diverted to spin two generators, producing electricity to manufacture aluminum and carborundum. Since ...


    By Ensia

  • Anti-islanding protection and islanding operation of grid-connected hydropower distributed generation

    Salient issues associated with the connection of hydropower distributed generation (HPDG) into distribution networks include operation and voltage regulation, grid connection and control interaction, anti-islanding protection and islanding operation, and operation of protective devices. Better understanding of these issues and finding solutions to these problems are timely and important to the ...


    By Inderscience Publishers

  • The potential impacts of climate change on hydropower generation in Mid Wales

    Hydropower is a potential large source of electricity supply in Wales. The Upper River Severn in Mid Wales is a typical stream where a high head hydropower scheme could be developed and the river system at Plynlimon has some of the longest records for weather and flow in Wales. A micro-hydropower potential of 99 kW is demonstrated at Plynlimon and the potential impacts of climate change are ...


    By IWA Publishing

  • Large-scale hydropower system optimization using dynamic programming and object-oriented programming: the case of the Northeast China Power Grid

    This paper examines long-term optimal operation using dynamic programming for a large hydropower system of 10 reservoirs in Northeast China. Besides considering flow and hydraulic head, the optimization explicitly includes time-varying electricity market prices to maximize benefit. Two techniques are used to reduce the ‘curse of dimensionality’ of dynamic programming with many ...


    By IWA Publishing

  • Study: 100% Renewable Electricity System is the Cheapest Option for South America

    Transitioning to a fully renewable electricity system is possible for South America by 2030. A study by Lappeenranta University of Technology (LUT) and VTT Technical Research Centre of Finland Ltd. also shows that a 100 percent renewable system (100% RE) is the cheapest electricity production option and can be achieved with very little energy storage. "South America has a unique renewable energy ...


    By Smart Grid Observer

  • Background: EU electricity and gas directives

    3.rd Energy Market Package, proposed September 2007 September 2007 the EU Commission proposed a revision of the electricity and gas market directives with amendmets of the directives on electricity and gas markets and the directives on cross-border trade of electricity and gas. The main changes are that all countries must have independant regulators of the electricity and gas markets, that these ...

  • As Global Demand for Electricity Grows, Geothermal Energy Heats Up

    January 9, 2017 — At 2:46 p.m. local time on Friday, March 11, 2011, Japan was rocked by the largest earthquake ever to strike its shores. The 9.1 magnitude quake triggered a devastating tsunami that killed more than 15,000 people. It also took out the back-up emergency generators that cooled the reactors at the Fukushima Daiichi nuclear power plant complex, causing a series of ...


    By Ensia

  • Upcoming EU electricity and gas directives should be changed to support EU`s new energy and climate policies

    It is important that the coming electricity and gas market directives ensures that renewable energy is given priority in the electricity and gas networks. This is both important when the energy is sold from local producers to the network and when the network is used for transport of energy from a renewable energy production unit to its owners. It applies to both electricity and gas networks, and ...

  • Building a resilient system

    Africa is the second largest continent in the world, with the majority of its people surviving every day with little or no access to electricity – 50% of the 1.2bn people lacking access to electricity globally are in Africa, earning less than $2/d and living in remote locations where conventional grid extension makes little economic sense. Tackling energy poverty is the key to ensuring ...


    By Energy Institute (EI)

  • Renewable Power Generation Costs in 2014

    Executive Summary The competiveness of renewable power generation technologies continued improving in 2013 and 2014. The cost-competitiveness of renewable power generation technologies has reached historic levels. Biomass for power, hydropower, geothermal and onshore wind can all now provide electricity competitively compared to fossil fuel-fired power generation (Figure ES 1). ...

  • Hydro energy: techno-economic and social aspects within new climate regime

    Small hydro systems can provide electricity for: central-grid, isolated-grids, and/or remote power supplies. Small hydraulic power also provides an extra contribution to national electrical production in the case of consumption peaks. Although hydro is currently the second most used renewable energy source in the world, still there is a significant unexploited potential. The clean development ...


    By Inderscience Publishers

  • Chile Renewables Report Q1 2013

    We have downgraded our non-hydropower renewable generation growth forecast for 2013 from 6.2% to 5.6% due to new data from the government. Conversely, we have revised up our long-term growth forecast from 5.5% to 6.3%, due to our expectations of economic growth and the country’s current power situation. That said, we note that economic viability could be lacking in many renewable energy ...


  • Effluent to Energy and It Is Renewable

    The Systems Conveyance and Operations Program (SCOP), located in Clark County, Nevada, will enable the Clean Water Coalition (CWC) to improve the water quality of Lake Mead, the main water source for the Las Vegas Valley, and to meet the increasing water demands of its four member agencies: the City of Las Vegas (CLV), the Clark County Water Reclamation District (CCWRD), the City of Henderson ...

  • Energy Poverty Entraps Economy In Developing Countries

    Energy Poverty is lack of access to energy services, mainly electricity for basic needs such as lighting and cooking.  Prevalent in the developing countries, the situation is inversely related to the well-being of almost 1.3 billion people worldwide.  Around 95% of Sub-Saharan and developing Asia’s population and 84% of their rural dwellers lack access to grid either because the ...


    By Greenshine New Energy LLC

  • Are renewables approaching a tipping point?

    The REN21 Renewables 2007 Global Status Report presents information about the current status of renewable energy around the world. The report is a joint project of the Worldwatch Institute and REN21 (the Renewable Energy Policy Network for the 21st Century) and was initiated in 2005. The 2007 edition is the third in the series. Investment Trends: This year’s report finds a dynamic, rapidly ...


    By Worldwatch Institute

  • Introduction to some kinds of renewable energy

    Clean energy is a kind of energy which does not produce pollutants in the use procedure. It includes nuclear energy and "renewable energy". Renewable energy refers to a kind of inexhaustible energy such as hydropower, wind power, solar energy, biomass energy (biogas), water energy, and tidal energy and so on. Renewable energy doesn’t have the possibility of energy depletion, and ...


    By Greenshine New Energy LLC

  • 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 ...


    By Ensia

  • The Global Arc Towards Renewable Energy

    Introduction Given the United States’ recent election results, America’s future on climate and energy policy is uncertain, but global progress on mitigating climate change will continue with or without us. We have reason to be optimistic because countries around the world have demonstrated their commitments to taking action on global warming. Already, 114 countries have ...


    By Climate Institute

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