Presented By :
N.M.Shyam prasad

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INTRODUCTION :
 In fact that a large percentage of electricity is being generated by using natural sources such as coal, gas etc. By the end of this century coal will be almost extinct.
 Among the various options of Non conventional sources of energy the WAVE ENERGY is considered as the best option for the production of electricity.
 PELAMIS WAVE POWER is the world’s first commercial scale machine to generate electricity in to the grid from offshore wave energy.
why wave energy?
 To protect the environment for future generations.
 To reduce the carbon emissions of greenhouse gases and consumption of limited resources.
 wave energy is the one of the most environmentally nature friendly form of electricity generation.
 Wave energy could play a major part in the world’s efforts to combat climate change.
 It potentially displaces 1–2 billion tonnes of CO2 per annum from conventional fossil fuel generating sources.
Pelamis Wave Power
 The Pelamis Wave Energy Converter is a semi-submerged, articulated structure composed of cylindrical sections linked by hinged joints.
 The wave-induced motion of these joints is resisted by hydraulic rams, which pump high-pressure fluid through hydraulic motors via smoothing accumulators.
 The hydraulic motors drive electrical generators to produce electricity.
PRODUCTION OF PELAMIS
 Power module fabrication
 Tube fabrication
 Final assembly
POWER MODULE FABRICATION :
 The power conversion modules contains the power capture systems.
 The module consists of a fabricated and a painted steel structure that is installed with motor generator set, hydraulic Cylinders, Accumulators, and electrical control cabins.
TUBE FABRICATION :
 The main structural fabrication consists of steel tubes, nose and yoke sections.
 The nose section is installed with transformer, switch gear and control system and is commissioned.
 Each tube is fitted with cabling and connecting transists to ensure the correct displacement.
FINAL ASSEMBLY :
 The completed module and tube segments are joined together to complete the assembly of the machine.
 These joints can be made both on the land and in the water depending upon facilities used.
 The fully assembled machine undergoes commissioning at on-site installation.
CONSTRUCTIONAL DETAILS :
 Each pelamis machine is of 140 mts long.
 It has a diameter of 3.5 mts.
 Each pelamis machine has three power conversion modules.
 Each machine is rated to produce 750 KW.
Depending on the wave resource, machines will on average produce 25-40% of the full rated output over the course of a year.