WECO - Offshore Energy Systems

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Wave energy conversion exploiting multiple renewable energy sources

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WECO - Offshore Energy Systems

  1. 1. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field SYSTEM FOR WAVE ENERGY CONVERSION EXPLOITING MULTIPLE RENEWABLE ENERGY SOURCES CH AND DEVELOPMENT Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr European Patent Office EP1734255
  2. 2. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul><ul><li>COMPANY ACTIVITIES PRODUCT AND SERVICES </li></ul><ul><li>FLOATING SYSTEMS </li></ul><ul><li>BOTTOM SUPPORTED PLATFORMS ON PILES </li></ul><ul><li>WAVE ABSORBING SYSTEMS </li></ul><ul><li>OFFSHORE ENERGY SYSTEMS </li></ul><ul><li>DESIGN OF SHIPS AND OFFSHORE STRUCTURES – SPECIAL SHIP SYSTEMS </li></ul><ul><li>PORT EQUIPMENT AND OUTFIT </li></ul><ul><li>RESEARCH AND DEVELOPMENT </li></ul><ul><li>RESEARCH AND DEVELOPMENT </li></ul>
  3. 3. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>ACTIVITIES RELATED TO WAVE ENERGY DEVELOPMENT OF OFFSHORE WIND PARKS Wind measurement systems Platforms supported on the sea bottom for relatively shallow waters Fitted with tower of big height using anemometers Fitted with low height tower using the LIDDAR system Floating Platforms of Intense Floatation Fitted with tower of big height using anemometers Fitted with low height tower using the LIDDAR system
  4. 4. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>THE BUILDING ELEMENT OF THE SYSTEM IS “ WECO – THE WAVE ENERGY CONVERTER” WECO IS AN OSCILLATING BODY COLUMN (OBC) AS OPPOSED TO OSCILLATING WATER COLUMN (OWC) WECO CONVERTS THE STOCHASTIC WATER MOTION TO A VERTICAL PALINDROMIC MOTION OF A BODY FLOATING INSIDE A COLUMN SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE FLACTUATING BODY DRIVES A PULLEY AND THROUGH IT THE PISTON OF AN AIR PUMP WHICH PRODUCES COMPRESSED AIR THE AIR PUMP IS OF DOUBLE ACTION AND PRODUCES COMPRESSED AIR IN ALL PHASES OF THE BODY MOTION THE COMPRESSED AIR IS LED TO AN AIR TANK OF INDERMEDIATE STORAGE THROUGH PIPES AND UNIDIRECTIONAL VALVES OF ADJUSTABLE OPERATING PRESSURE THE BUILDING ELEMENT OF THE SYSTEM
  5. 5. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>A CERTAIN NUMBER OF WECO WITH AN AIR TANK AND AN AIR MOTOR, DRIVING A GENERATOR , FORM THE BASIC UNIT OF ELECTRICITY PRODUCTION SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES BASIC UNIT STRUCTURE OF THE BASIC ELECTRICITY PRODUCTION UNIT
  6. 6. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>THE CARRIER IS AN INTENSE FLOATATION PLATFORM (TENSION LEG) <ul><li>MINIMISATION OF THE WAVE FORCES </li></ul><ul><li>ABSENCE OF ANGULAR MOTIONS </li></ul><ul><li>SMALL SECONDARY VERTICAL MOTION </li></ul><ul><li>THE MOVEMENTS OF THE CARRIER DO NOT AFFECT THE </li></ul><ul><li>OSCILLATING BODY OF THE WECO </li></ul><ul><li>CAPABILITY TO INSTALL IN DEEP AND VERY DEEP </li></ul><ul><li>WATERS </li></ul><ul><li>THE CARRIER CAN CARRY THE WHOLE EQUIPMENT </li></ul><ul><li>NEEDED FOR THE ELECTRICITY PRODUCTION </li></ul>BASIC CHARACTERISTICS – ADVANTAGES UNDER SOME CISCUMSTANCES THE NATURAL PERIOD OF THE PLATFORM (CARRIER) CAN BE TUNED TO BE OUTSIDE THE WAVE BAND OF THE PREVAILING WAVES IN THE AREA OF INSTALLATION SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE CARRIER OF A PRODUCTION UNIT
  7. 7. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>A PLATFORM (CARRIER) OF INTENSE FLOATATION WHICH CARRIES A BASIC PRODUCTION UNIT CONSIST A BASIC MACHINE FOR ELECTRICITY PRODUCTION - (MODULE) THE MODULES ARE CONNECTED TO BUILT A COMPLETE INSTALLATION TO PRODUCE ELECTRICITY FROM WAVES WITH THE PROPER ALLOCATION OF THE WECO INSIDE THE PLATFORM THE EXPLOITATION OF THE WAVE FIELD CAN BE MAXIMISED WITH THE PROPER CONNECTION OF BASIC UNITS BETWEEN EACH OTHER IT IS POSSIBLE TO DESIGN AN INSTALLATION THAT CAN EXPLOIT AT THE MAXIMUM THE WAVE FIELD OF A SPECIFIC AREA SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES UNIT FOR ELECTRICITY PRODUCTION (BASIC MACHINE)
  8. 8. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul><ul><li>THE PROPOSED WECO EXPLOITS THE MOTION OF AN OSCILLATING BODY AND </li></ul><ul><li>NOT DIRECTLY THE WATER MOTION AS IT HAPPENS IN THE OSCILLATING </li></ul><ul><li>WATER COLUMNS (OWC) </li></ul><ul><li>THE OSCILLATING BODY IS OF ADJUSTABLE NATURAL PERIOD SO THAT ITS </li></ul><ul><li>RESPONSE TO WAVES IS ENHANCED IN A WIDE RANGE OF WAVE FREQUENCIES </li></ul><ul><li>THE MECHANISM EXPLOITS ALL PHASES OF BODY MOTIONS, AS IT IS DONE ALSO </li></ul><ul><li>IN THE OWC’s, BUT IT NEEDS A UNIDIRECTIONAL AIR TURBINE OF HIGH </li></ul><ul><li>PERFORMANCE INSTEAD OF WELL’s TURBINE </li></ul><ul><li>IT CONVERTS THE WAVE ENERGY TO ENERGY OF COMPRESSED AIR AND NOT TO </li></ul><ul><li>KINETIC ENERGY OF LOW PRESSURE AIR, AS IT HAPPENS IN THE OWC’s . </li></ul><ul><li>THE IMPLICATIONS ARE OF GREAT IMPORTANCE. </li></ul>SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY BASIC INNOVATIVE CHARACTERISTICS
  9. 9. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul><ul><li>THE PRODUCTION OF COMPRESSED AIR AS AN INTERMEDIATE STAGE ECXIBITS </li></ul><ul><li>IMPORTAND ADVANTAGES AND OFFERS SERIOUS CAPABILITIES AS IS THE </li></ul><ul><li>EXPLOTATION OF OTHER RENEWABLE ENERGY SOURCES </li></ul><ul><li>IN ADDITION THE PRESSURE OF THE PRODUCED COMPRESSED AIR CAN BE SELECTED AT </li></ul><ul><li>THE DESIGN PHASE BUT ALSO CAN BE ADJUSTED DURING OPERATION WHICH GIVES </li></ul><ul><li>ADDITIONAL CAPABILITIES : </li></ul>CAPABILITY “1” TEMPORARY STORAGE OF ENERGY IN THE FORM OF COMPRESSED AIR IN AIR RESEVOIRS OF THE BALLON TYPE INSTALLED IN THE SEA BOTTOM CAPABILITY “2” EXPLOITATION OF OTHER RENEWABLE ENERGY SOURCES SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY THE COMPRESSED AIR AS THE ENERGY UNDERLAYER OF THE SYSTEM
  10. 10. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul><ul><li>WECO CAN PRODUCE COMPRESSED AIR AT PRESSURES EQUAL TO THE WATER PRESSURE AT THE SEA BOTTOM </li></ul><ul><li>IT IS POSSIBLE, THEREFORE, THAT THE AIR CAN BE STORED IN AIR RESERVOIRS OF BALLOON TYPE INSTALLED AT THE SEA BOTTOM </li></ul><ul><li>THE ENERGY CAN BE STORED AT HOURS OF LOW DEMAND AND TO BE USED AT PEAK TIMES </li></ul><ul><li>OPERATIONAL SCENARIA OF THE «8-8-8» TYPE ARE POSSIBLE, </li></ul><ul><li>OR THE USE OF THE STORED AIR TO NORMALISE THE ELECTRICITY </li></ul><ul><li>PRODUCTION IN THE AIR TURBINES IS ALSO POSSIBLE PRODUCING </li></ul><ul><li>ELECTRICITY OF “HIGH QUALITY” </li></ul>SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY TEMPORARY ENERGY STORAGE - NORMALISATION -
  11. 11. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>WITH THE COMPRESSED AIR TO BE THE ENERGY UNDERLAYER OF THE PROPOSED SYSTEM IT IS POSSIBLE TO EXPLOIT OTHER RENEWABLE ENERGY SOURCES. <ul><li>THE SUN ENERGY CAN BE USED TO HEAT THE COMPRESSED AIR BEFORE ITS EXPANSION IN THE AIR TURBINS </li></ul><ul><li>THE TEMPERATURE DIFFERENCE BETWEEN THE SEA SURFACE AND SEA BOTTOM IS AN ADDITIONAL SOURCE OF ENERGY </li></ul><ul><li>THE DAILY TEMPERATURE DIFFERENCE IS ANOTHER ENERGY SOURCE THAT CAN BE EXPLOITED IN CONJUCTION WITH TEMPORARY STORAGE OF AIR </li></ul>SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES
  12. 12. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>THE INSTALLATION OF WIND GENERATORS OFFSHORE CAN BE COMBINED WITH THE PARALLEL EXPLOITATION OF THE WAVE FIELD MAXIMISING THE OUTPUT AND MINIMISING THE COST OF THE INVESTMENT A SERIOUS POSSIBILITY IS SHOWING UP THAT THE SYSTEM OF TEMPORARY STORAGE OF ENERGY IN AIR RESERVOIRS CAN BE USED IN CONJUCTION WITH THE WIND ENERGY IT IS SHOWING UP, THEREFORE, THE POSSIBILITY TO BUILD UP HYBRID SYSTEMS IN WHICH INSTEAD OF WATER, AS THE MEANS OF STORAGE, THE COMPRESSED AIR WILL BE USED INSTEAD AND THE STORAGE TANKS WILL BE AIR RESERVOIRS OF BALLLOON TYPE INSTALLED AT THE SEA BOTTOM. SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE PROPOSED MECHANISM FOR CONVERTING THE WAVE ENERGY TO ELECTRICITY HYBRID SYSTEMS. ARE THEY POSSIBLE ?
  13. 13. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>IN THEORY THE SYSTEM IS POSSIBLE AND REALISTIC. WHAT ABOUT REAL LIFE, HOWEVER ? THE BASIC WECO OPERATION HAS BEEN TESTED AND ITS PERFORMANCE AGAINST THEORITICAL CALCULATIONS HAS BEEN CONFIRMED. COMPRESSED AIR WITH PRESSURE > 3 BARS WAS PRODUCED. THE TESTED SYSTEM WAS PRIMITIVE, WITH COLUMNS OF SMALL DIAMETER AND HEIGHT AND A BODY OF SMALL WEIGHT. HOWEVER IT WORKS. PLATFORMS OF INTENSIVE FLOATATION WHICH ARE CAPABLE TO CARRY WECO HAVE BEEN CONSTRUCTED AND TESTED IN REAL CONDITIONS OFFSHORE LAURION AREA IN GREECE. SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES IS THE PROPOSED SYSTEM A REALISTIC PROPOSITION ?
  14. 14. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>The calculation of the wave energy potential in a specific area is based on tables of wave heights and periods with their frequencyof occurrence during a year. Preliminary calculations for the proposed system give : <ul><li>Efficiency factor > 30% </li></ul>The wave energy content for a given wave is given as Ε=1/8 ρ gH 2 (Joule /m 2 ) and the power along a wave crest P = ½ Ε. C (W/m) <ul><li>Produced mean power > 7 KW/m of installation </li></ul><ul><li>Possibility of doubling the power by exploiting other </li></ul><ul><li>sources of renewable energy </li></ul>SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES WHICH CAN BE THE EFFICIENCY OF THE PROPOSED SYSTEM ?
  15. 15. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>The equations describing the motions of the body under the action of waves and of the belt (or chain) that drives the pulley are very complicated and require the development of time domain simulation programs. The force coming from the belt is complicated and it depends : At the design phase : from the pulley diameter, the piston diameter, the disk diameter, the desired pressure etc. During operation : from the piston position, the air compression, the tuning of the valves For illustration purposes the simplified form of the equations can be written : For the free floating body its natural frequency is given by the relation : SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE THEORETICAL BASIS OF WECO OPERATION
  16. 16. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>For the free floating body its natural frequency is given from the relation: Such a body presents high response factors ( RAO’s) at wave periods close to its natural period, but very poor outside a narrow band around its natural period. The body that we use in WECO is of adjustable natural period with high responses in a wide range of wave periods. The tuning is achieved by changing the mass of the body during operation, depending on the incoming wave characteristics. The tuning is performed automatically through a system using sensors to measure wave characteristics and a controller that drives a pump embedded in the body Such a body we call smart body or smart BuOY SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE SMART BuOY
  17. 17. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>Time domain simulation program “WAGEN” has been developed to study the responses of WECO to simple sinusoidal waves SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES THE SMART BuOY
  18. 18. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES DIAGRAMMATIC REPRESENTATION OF THE BASIC PRODUCTION UNIT
  19. 19. ΘΑΛΑΣΣΙΑ ΕΝΕΡΓΕΙΑΚΑ ΣΥΣΤΗΜΑΤΑ Α.Ε. OFFSHORE ENERGY SYSTEMS S.A. Smart, innovative and effective solutions in the marine and offshore field Address: 48 Karaoli & Dimitriou str., GR-152 32 Halandri, Greece Tel . +30 210 6775 003, Fax +30 210 6812 770, www.martech.gr , email : tech @ martech . gr <ul><li></li></ul>THE WAVE ENERGY CONVERTER OF “OFFSHORE ENERGY SYSTEMS” IS UNDER DEVELOPMENT WITH THE AIM VERY SOON A PILOT INSTALLATION TO BE READY SYSTEM FOR WAVE ENERGY CONVERSION AND EXPLOITATION OF MULTIPLE RENEWABLE ENERGY SOURCES COOPERATION ON THE PROJECT IS DESIRABLE European Patent Office EP1734255

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