Hydropower

New Hydro

Issue 6 and Volume 21.

U.K. government rejects Severn Estuary tidal power proposal

The United Kingdom recently rejected a proposal for a US$40 billion tidal project that would have been located in the Severn Estuary, according to a statement issued by Parliament’s Energy and Climate Change Committee.

The government said the Halfren Power Proposal “does not demonstrate that it could deliver the benefits it claims it would achieve.” Halfren Power’s most recent plan was a slightly modified version of one previously rejected by Parliament in October 2010. Halfren said the project could have been capable of providing as much as 5% of the U.K.’s energy.

However, the committee said the barrage was “unproven” and that it posed a “high risk of unintended and possibly damaging consequences.” “The Severn Estuary has great potential,” Parliament said. “However, the government recognizes that a traditional tidal barrage is not the only way of exploiting the outstanding resources of the Severn Estuary.”

Nonetheless, the committee said it would be open to again assessing Halfren Power’s proposal should the company provide “much more detailed, credible evidence” with regard to the project’s environmental impact, turbine modeling, job creation, navigation considerations, flood impact figures, technical feasibility and more.

Fortum, DCNS, AW-Energy agree on wave project in France

A research and development agreement signed by Fortum, DCNS and AW-Energy in September will lead to a new 1.5 MW wave energy project off the Brittany coast in northwest France.

Per the agreement, Fortum will be responsible for the project’s development and serve as owner of the demonstration park. DCNS will manage the site development and construction work, and AW-Energy will contribute its “WaveRoller” generating units.

The WaveRoller is a submerged unit that relies on back-and-forth wave movements to move a hinged panel. AW-Energy and Metso have previously tested a WaveRoller unit off the coast of Peniche, Portugal.

Alstom, ScottishRenewable Power sign MOU for tidal project

Alstom will provide tidal devices for an installation in the Sound of Islay, between Islay and Jura off Scotland’s west coast, following the recent signing of a memorandum of understanding with ScottishPower Renewables.

Alstom said the site will include up to four of its 1 MW tidal units — one is currently being tested at the European Marine Energy Centre in Orkney, Scotland.

The first unit is set to deploy in late 2015, Alstom said, with the remainder being completed in 2016. Operations are planned for 25 years, during which time the plant will serve as a building block for a potential 95 MW marine and hydrokinetic project off the north coast of Caithness at Duncansby.

ScottishPower Renewables received approval for the tidal power array from the Scottish government in 2011. The site will also host a turbine being developed by the company in conjunction with Andritz Hydro Hammerfest.

MacDermid to supply fluids for Carnegie project

Global fluid firm MacDermid Offshore Solutions has signed an agreement with Carnegie Wave Energy to provide hydraulic fluid for Carnegie’s marine hydrokinetic project in west Australia.

MacDermid said the project will make use of its WECS Fluid, which is a newly designed water-based formula.

The project will be located off the Perth coast and use Carnegie’s “CETO” generating system. The system uses a fully submerged buoy that relies on the vertical motion of waves to drive a pump, which in turn delivers pressurized water to an onshore turbine via a submerged pipeline.

Carnegie and partner Triton Renewable Energy completed tests of a CETO unit off Bermuda’s south shore in May 2012.

The project is being funded by a number of entities and low emissions energy development programs. Carnegie said installation of the foundation will begin by the end of this year.

OPT expanding its technology to offshore oil and gas sector

Wave energy developer Ocean Power Technologies Inc. has been selected by Offshore Europe to launch its “PowerBuoy” generating devices into the global oil and gas sector.

OPT said its PowerBuoy wave energy system has already been successfully utilized in the defense, renewable and utility sectors, with installations producing energy at several sites around the globe.

The company said it envisions its units being used in a number of ways in the hydrocarbon production industry. For example, OPT cited diesel replacement for energy generation on oil and gas platforms, the control of electric trees for CO2/water field injection, and security cordons for offshore developments.

Briefly…

Wave power developer Sustainable Marine Energy relocated its offices and workshops from London to the Isle of Wight this past summer. The move came after the company determined the Isle of Wight has the support system to continue developing its tidal energy turbine platform, PLAT-O. … Government utility Societe National d’Electricite (Senelec) in Senegal plans to study integration and implementation of renewable energy. The work is to include small hydropower, tidal power, biomass and wind and is to be performed from March to June 2014.

For more ocean/tidal/stream news, see the Hydro Project Activity tab at HydroWorld.com