Hydro Power

The flowing waters in the rivers and tidal waves can be a good source of alternative energy. With 70% of the earth's surface covered with water, a great amount of energy can be produced by placing turbines at strategic locations under strong currents. This method of generating electric power is called hydrokinetic power generation. In fact, plans are under way to install 875 submerged turbines inside the Niagara river. 1 Comment

Paul Taylor: World’s first commercial-scale tidal stream turbine set to be installed. Bristol-based Marine Current Turbines (MCT) is set to deploy its 1.2MW SeaGen Tidal System in Strangford Narrows, Northern Ireland on Easter Monday. Producing enough clean energy for 1000 homes (when fully operational), this will be the first, commercial scale, tidal stream turbine installed and operating anywhere in the world. It will generate one of the most environmentally-friendly forms of energy - it makes no noise, is almost completely below the surface, never runs out and has zero emissions. 11 Comments

Pakistan inventor Sarfraz Ahmad Khan has been working hard to develop new hydro technologies like this hydro power invention. His latest concept features the run of river active setup of micro hydro power generation blended with basic principals of hydraulics. This concept explores the possibility of transmitting the (collective) mechanical power gained from run-of-river hydro setup by converting it into hydraulic pressure. The sum-up of hydraulic pressure will make the main generators work. The basic concept requires hydraulic systems that can help to us to gain some reasonably good mechanical advantages. The hydro-mechanics will convert the mechanical force into hydraulic pressure. The collective hydraulic pressure shall be utilized to rotate the generator shaft. 7 Comments

Paul Taylor: Installation Of The World's First Commercial Tidal Current Power System Confirmed. Marine Current Turbines has today (June 6th 2007) confirmed that installation of its SeaGen commercial tidal energy system will commence during the week of August 20th in Northern Ireland's Strangford Lough. At 1.2MW capacity, SeaGen will be the world's largest ever tidal current device by a significant margin, and will generate clean and sustainable electricity for approximately 1000 homes. It is also a world first in being a prototype for commercial technology to be replicated on a large scale over the next few years. 8 Comments

A new hydro power technology is being developed by Sarfraz Ahmad Khan of Pakistan. In theory these hydro plants would not require a reservoir and would have a minimal impact on the environment. They could be run side-by-side in rows and would be much cheaper to build, operate and maintain. Sarfraz has high hopes that his ideas could revolutionize hydro power in his country and across the globe. He is currently seeking expert confirmation of his ideas; this article provides a brief summary of his ideas along with some of the 3D images he has created. You can help him by leaving your comments at the bottom of the page, or by joining the discussion that inspired this article. 17 Comments

The development of the first subsea commercial wave farm by a Scottish company took another important step forward today (Tuesday February 20th 2007) with news that Scottish wave energy company, AWS Ocean Energy Ltd. based in Alness, Ross-shire, has secured £2.128 million funding from the Scottish Executive. The funds will be used to develop and commercialise AWS' Archimedes Wave Swing, one of the few proven technologies worldwide for generating clean, renewable electricity from the ocean's waves. The support for AWS is part of a £13 million support package for Scottish marine energy developers funded by the Scottish Executive, which aims to establish Scotland as a world leader in marine energy. 7 Comments

The Ocean Renewable Energy Coalition (OREC) was founded in 2005 by Sean O'Neill (founder of Symmetrix) and Carolyn Elefant (Law Offices of Carolyn Elefant). The mission of OREC is the advancement and commercialization of offshore renewables, including offshore wind, ocean wave, OTEC and ocean and stream based tidal and current (hydrokinetic) technologies. In 2006 OREC lobbied for federal funding for offshore renewable projects and tax incentives to stimulate private investment. 1 Comment

Harnessing hydel energy can be an effective way of reducing poverty. China and India have already done that successfully. It is not a fruitful idea to keep discussing as to how much the number of people living below the poverty line has come down during the last five years. Considering that even with the reduced percentage, those suffering from acute poverty are still too many to be left on their own. Now is the time to move on and discuss the best strategy to reduce poverty and help the economy grow at the same time. Article submitted by Arshad H Abbasi. 3 Comments

BioPower Systems is developing a new ocean energy technology in Australia that will use bionics to mimic natural systems in order to produce energy. Both bioSTREAM and bioWAVE technologies use biomimicry, which refers to the adaptation of biological traits in engineered systems. BioPower Systems has copied many of the beneficial traits from natural systems in the development of the new ocean energy conversion systems. The company is researching this new technology for application. Laboratory testing will be completed in 2007, and full-scale ocean-based prototypes will be tested in 2008. Commercial units are expected to reach the market by the end of 2009. 1 Comment

Small tidal power companies are taking advantage of the rising interest in alternative energies. Large amounts of coastal waters are being reserved on both coasts of North America by small companies who plan to take advantage of ocean energy technologies, in the hopes that these sites will become profitable sources of electricity. Celeste Miller, spokeswoman for the Federal Energy Regulatory Commission, says that interest in tidal power technology began about two years ago. Her agency issues permits that give companies exclusive rights to study the tidal sites. Permit holders usually have first dibs on development licenses. No Comments

A Portuguese energy company called Enersis is funding a commercial wave energy project in Northern Portugal. Construction will begin at the end of October 2006. The project will use Pelamis wave generator technology (manufactured by Ocean Power Delivery) to harness energy from the ocean. After two decades of research and testing at the Lisbon Technical Institute, the first stage of this ocean energy project is intended to produce 2.25 megawatts and power homes through the nation's state-run electrical grid system. Ocean Power Delivery is considered to be the world's leading ocean energy company. No Comments

Small-scale micro hydro power is both an efficient and reliable form of energy, most of the time. However, there are certain disadvantages that should be considered before constructing a small hydro power system. It is crucial to have a grasp of the potential energy benefits as well as the limitations of hydro technology. There are some common misconceptions about micro-hydro power that need to be addressed. With the right research and skills, micro hydro can be an excellent method of harnessing renewable energy from small streams. This article will attempt to outline some of the advantages and disadvantages of small scale water turbines. 8 Comments

Mr. Sean O'Neill, President of Ocean Renewable Energy Coalition, on Renewable Ocean Energy: Tides, Currents, and Waves. Ocean Renewable Energy Coalition is a trade association founded to promote energy technologies from clean, renewable ocean resources. The coalition is working with industry leaders, academic scholars, and other interested NGO's to encourage ocean renewable technologies and raise awareness of their vast potential to help secure an affordable, reliable, environmentally friendly energy future. This is text of the Testimony before the Committee on Resources, Subcommittee on Energy and Mineral Resources, Unites States House of Representatives. 3 Comments