Difference between revisions of "Wave energy"

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Latest revision as of 03:04, 15 February 2020


Carnegie Wave Energy

Carnegie wave energy

CETO wave energy technology that converts ocean swell into zero-emission renewable power and desalinated freshwater.
Uses seafloor-tethered buoys. CETO 6 ~1MW will contain hydraulic - electrical generators, earlier ones seem to have had hydraulic to shore, electrical conversion onshore(?)

CETO commercial scale unit

The CETO 6 design builds on the experience gained in all previous CETO generations and incorporates some important improvements.
The diameter of the buoyant actuator has the most significant influence on power output and has been increased to approximately 20m from the 7m diameter 80kW unit successfully tested at the Garden Island site in 2011 (pictured below) and the most recent 11m diameter, 240kW units tested in 2015 at the same site (pictured below).
Apart from being larger, CETO 6 will also incorporate the power generation offshore, inside the buoy rather than onshore as with the current CETO 5 generation being deployed for the Perth Wave Energy Project. Locating the power generation within the buoy removes the need to attach pumps, accumulators and other hydraulic components to the seabed, avoiding the requirement for offshore heavy lift vessel capacity and reducing the offshore installation and maintenance time and cost.The demonstration of CETO incorporating subsea generation and transmission of electrical power will allow Carnegie to take advantage of deeper, more distant to shore wave resources and significantly increases the size of the commercial market for CETO and allow greater responsiveness in the CETO control system.
The Perth Wave Energy Project involved the design, construction and operation of three 240kW CETO 5 units which produced and sold both power and water to the Australian Department of Defence who operate Australia’s largest naval base, HMAS Stirling, on Garden Island and operated for over 14,000 cumulative hours across four seasons.
Work began in 2013 on the next generation CETO 6 design which has a targeted capacity of 1MW. The CETO 6 generation will again be demonstrated first at Carnegie’s Garden Island site in Western Australia ahead of international installations.

EcoWavePower

Eco Wave Power

talks about 1MW

Gibraltar

Gibraltar wave power project surfs up possibilities across Europe Nnamdi Anyadike; Power Technology; 4 Oct 2016

Eco Wave Power’s (EWP) energy project in Gibraltar - the first such grid-connected plant and the only wave energy plant in Europe operating multiple units under commercial power purchase agreement (PPA) terms
in 2014, EWP signed a PPA with Gibraltar for delivery of a 5MW ocean power plant. Phased construction of the Gibraltar plant, located at the Ammunition Jetty, began last year and it is already exporting electricity into the power grid. The system is currently composed of eight ocean energy converter units that supply 100kW, but when completed, with the help of an EU grant, the array will produce 5MW. It is then expected to meet 15% of Gibraltar’s electricity demand. Although currently still in the design phase, the additional units will be much larger than the existing ones.