Hydro-Electric Barrel Design Uses Moving Water to Generate Energy

A new design for a hydroelectric generator could cheaply light up off-grid areas. The Hydro-Electric Barrel is a spinning water wheel that floats on the water surface and turns in the current. The spinning motion drives permanent magnet generators inside. It could generate enough power to light banks of LEDs and light up bridges, buoys, or even charge mobile devices in off-grid areas and developing countries. And, because it sits on the surface, it doesn’t disrupt the environment as much as other hydro-power technologies.



 

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Aquamarine Power Breaks Ground on Oyster Wave Energy Farm in Orkney

Aquamarine Power recently announced the first step towards the installation of its second Oyster wave energy generator with the arrival of the ‘Excalibur’ jack-up barge in the Orkney Islands. The operation will see the barge begin to drill piles into the seabed in order to create foundations for the next-generation wave energy device. The new Oyster is the first of ten potential units that are planned for the area, and each Oyster will be capable of producing 300-600 KW of electricity. Once completed, the farm will be able to provide enough energy for 3000 homes.

 

The Oyster will capture energy from waves and convert it into clean, sustainable electricity – in essence, it is a wave-powered pump that pushes high-pressure water to drive a conventional onshore hydro-electric turbine. The innovative device use an on-shore base that is much easier to maintain than standard offshore wave power designs. The system is also capable of operating at shallow depths, making it more consistent than systems that operate far out at sea.

The Oyster is scheduled to be installed off the Orkney Islands at the end of July, when it is transported from Methil to EMEC by barge. Once the Oyster is on the site, it will be fixed to the seabed around 500 metres from shore. This will be followed by a commissioning process which will see the device connected to an onshore hydro-electric generator via sub-sea pipelines.

Speaking about the project, Martin McAdam, Chief Executive Officer of Aquamarine Power said: “The installation of our second full-scale Oyster will be another major milestone for Aquamarine Power. Our team will be working very hard over the next few months to complete the project for sea trials to begin in the autumn. “We have been made to feel very welcome in Orkney since we installed our first Oyster at Billia Croo in 2009. We have worked with more than 30 local firms and spent directly over £2 million in the local economy since we began working in Orkney.

“We believe wave energy offers a very positive future to Orkney and we look forward to continuing to build on those relationships with our second Oyster project.”

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Global power company Fotowatio Renewable Ventures (FRV, Madrid, Spain) on June 18th, 2011 announced with its consortium partners BP Solar and Pacific Hydro that it has won an Australian Government tender to build and operate Australia’s first large-scale solar photovoltaic (PV) power station.

The 150 megawatt (MW) PV facility will be located in the New South Wales Tablelands near the regional town of Moree and will be known as the Moree Solar Farm.

FRV reference PV plant in Magasquilla, Spain

 

650,000 PV panels to generate enough electricity to fully power approximately 45,000 homes

The Moree Solar Farm is part of the Federal Government’s Solar Flagships Program which has committed USD 1.5 billion to support the construction and operation of solar power stations around Australia. The project, the first solar large scale power station to be built in Australia, will also be one of the largest solar facilities in the World.

FRV has been awarded the contract against stiff international competition of more than 50 consortiums worldwide. Construction of the plant is due to begin in 2012 with electricity produced to be sold into Australia’s National Electricity Market.

Once completed, the Moree Solar farm will comprise around 650,000 PV panels and generate enough electricity to fully power approximately 45,000 homes (roughly the size of Darwin).
The farm will also deliver significant benefits to the local economy including job creation during the four-year construction phase.

 

Consortium comprises FRV, BP Solar and Pacific Hydro

FRV CEO Rafael Benjumea said FRV – the consortium’s majority equity stakeholder – is delighted to be a part of this landmark solar project. “The Moree Solar Farm is a very exciting project for FRV and provides a platform for FRV to expand in Australia,” Mr. Benjumea said. “Australia has enormous and largely untapped potential as a major solar power producer so we see our investment in Australia as a long-term commitment.

The Moree Solar Farm will be built, owned and operated by a consortium comprising three partners with complementary skills: FRV, BP Solar and Pacific Hydro.

 

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Latin America — Hydroelectricity projects are set to balloon in Latin America as the region is expect to invest hugely in the technology in coming years, followed by biomass and wind power, according to industry observers.

“We are only using 22% of our hydroenergy potential,” says Eduardo Noboa, renewable energy coordinator at the Latin American energy organization Olade, based in Quito, Ecuador. “This is the region’s main resource for clean energy generation and where most renewable investments will concentrate in the short and medium term to generate hydroelectricity.”

As of 2010, 57% of electricity in Latin America and the Caribbean stems from hydro sources while another 40% comes from thermoelectric power plants using fossil fuels and natural gas. Of the remainder, 2% comes from nuclear stations and 1% from wind, solar and geothermal plants.

According to Noboa, 94% of the region’s electricity potential could stem from hydroenergy while another 6% could come from alternative renewable sources

Of course, new technologies could change future investment trends but as it is now hydroenergy output could rise five times by 2020, Noboa predicts. Bioenergy production could soar 14 times, largely driven by a plethora of planned ethanol projects, while wind power could see capacity rise eight fold. Currently, there are 147,879 MW of installed hydro capacity south of the border. Meanwhile, the region produces 28 m3 (about 7,400 US gallons) of bioethanol and about 5m3 (1320 US gallons) of biodiesel while wind capacity stands 1,000 MW, according to Olade.

Hydroenergy projects have high public acceptance and make use of the region’s large river and waterway resources. Brazil is the powerhouse of hydroelectric generation with 80 GW of installed capacity and is expected to lead the investment frenzy in this conventional renewable resource.

Observers predict Argentina, Mexico and Costa Rica will follow closely behind with several projects on the drawing board. Other countries expected to lift capacity are Uruguay, Colombia and Venezuela which generation matrix is also mainly supported by hydro resources. Mexico generates 80% of its electricity from thermal stations while Argentina and Chile also draw more than half of their power needs from thermal plants. Cuba is mostly a thermal-based energy economy.

Colombia, Argentina Advance in Biofuels

The biofuels race, meanwhile, is mostly making headlines in Colombia and Argentina, which have several large-scale projects up their sleeves. Brazil is the leader with a massive ethanol and flex-fuel car industry but Argentina continues to make gains in efforts to become the region’s biodiesel hub. Government officials recently announced the nation will churn out 3.2 million tonnes of biodiesel and export $2.2bn worth of it this year.

Meanwhile, Colombia is targeting the creation of 1 million jobs as it works to elevate the country’s biodiesel production to 1 million tonnes by 2013. Guatemala is also moving to build its bioenergy industry and is expected to lead the way in Central America.

Mexico has made great strides in wind power but fresh criticism of the government’s “poor compensation rates” are expected to put a lid on new projects in the near to medium term.

Raul Felix, climate change and renewable energy practice coordinator at Baker & McKenzie in Mexico City, expects Chile and Central American to witness strong growth in the technology though other countries, notably Uruguay and Venezuela, are also hoping to develop wind parks in coming years.

Chile certainly has hammered out an eye-catching plan. The country hopes to deploy projects that will install as much as 800 MW of capacity by 2012, led by the 500 MW Ovalle juggernaut slated to come online this year. Overall, South America should see the installation of 1,300 MW of wind capacity this year, according to the Latin American Wind Power Association (LAWEA).

In the next two years, Uruguay, a small nation bordering Argentina’s north, is planning 500 MW worth of projects by 2015 while Venezuela raised headlines recently with a scheme to develop its wind energy resources. A 100-MW project in Paraguana is expected to be powered up in 2011 or early 2012 but Caracas hopes to install at least 1,600 MW of wind capacity by 2015-20.

Geothermal development is forecast to take place in Mexico and Central America though South America also has some interesting potential, according to observers.

Felix says Latin America’s poor interconnection links will present a future challenge to the development of renewable power.

“Our interconnection and transmission capacity is very low compared to North America and Europe so there is much to do in this regard,” he points out.

The region must also improve and expand its regulatory framework to include all renewables. Many countries have drafted a legislative and incentives program to support certain technologies but none have a single, cohesive framework to govern all renewables.

Unsurprisingly, Brazil is also the leader in this regard though Mexico and Chile have also made important advances.

 

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