The objective of this project is to advance the Technology Readiness Level of the x1 Wave Energy Converter (WEC) developed by CalWave Power Technologies Inc. through advanced numerical simulations, dynamic hardware tests, and ultimately a scaled open water demonstration deployment. Key outcomes include deployment and operation of the demonstration unit at an open water site which replicates full scale ocean conditions, and performance and load measurements which are used to validate the high techno-economic performance of the full-scale device. This report briefly describes the x1's final system design but, as a final test report, mainly focuses on the open water testing. For further description of the WEC system the reader is referred to CalWave's system content models, which will become publicly available at the end of 2027. The full version of this Final Test Report will become available on 8/10/2028. This WEC pilot project was done at Scripps in San Diego, California, USA.

The objective of the project is to advance the Technology Readiness Level (TRL) of the Wave Energy Converter (WEC) developed by CalWave Wave Power Technologies Inc (CalWave) through advanced numerical simulations, dynamic hardware tests, and ultimately a scaled open water demonstration deployment while continuing to exceed DOE's target ACE threshold of 3m/M$. The outcomes of Budget Period 1 will be a detailed design of the scaled demonstration unit and bench testing of the critical hardware components.

The objective of the project is to advance the Technology Readiness Level (TRL) of the Wave Energy Converter (WEC) developed by CalWave Wave Power Technologies Inc (CalWave) through advanced numerical simulations, dynamic hardware tests, and ultimately a scaled open water demonstration deployment while continuing to exceed DOE's target ACE threshold of 3m/M$. The outcomes of Budget Period 1 will be a detailed design of the scaled demonstration unit and bench testing of the critical hardware components.

CalWave has developed a submerged pressure differential type Wave Energy Converter (WEC) architecture called xWave. The single body device oscillates submerged, is positively buoyant, and taut moored to the sea floor and integrates novel features such as absorber submergence depth control. Since participation in the US Wave Energy Prize, CalWave has evolved the design and successfully concluded a scaled 10-month open ocean pilot. CalWave recently concluded the final design phase of a scaled up WEC version for PacWave and started component order/build of the WEC towards the grid-connected demonstration at PacWave. Documentation here includes a Non-Commercially Sensitive Project Report for BP1 of CalWave's xWave Demonstration Project.

This submission contains a summary of tank test derived WEC device behavior in different irregular sea states. CalWave sought to conduct experimental tank testing of scaled prototype units early on in the design process to obtain a first estimation of device performance for sea states of importance and to perform system identification/PTO tests. These experimental tests primarily aim to assess the wave to structure conversion efficiency and device behavior. Moreover, distinct model parameters of high interest were experimentally tested to validate numerical device modeling and optimization. These tests focused on system identification rather than performance maximization.

This submission contains a summary of tank test derived WEC device behavior in different irregular sea states. CalWave sought to conduct experimental tank testing of scaled prototype units early on in the design process to obtain a first estimation of device performance for sea states of importance and to perform system identification/PTO tests. These experimental tests primarily aim to assess the wave to structure conversion efficiency and device behavior. Moreover, distinct model parameters of high interest were experimentally tested to validate numerical device modeling and optimization. These tests focused on system identification rather than performance maximization.

This submission of data includes all the 1/50th scale testing data completed on the Wave Energy Prize for the CalWave team, and includes: 1/50th test data (raw & processed) 1/50th test data video and pictures 1/50th Test plans and testing documents SSTF_Submission (summarized results)

CalWave is developing a wave energy converter (WEC) called xWave, which operates fully submerged and is classified as a submerged pressure differential type. As ocean waves pass over the submerged wave buoy, a pressure differential is created, exciting the absorber in multiple degrees of freedom to oscillate in resonance with the ocean waves. Energy is efficiently extracted using multiple independently controllable power take-off (PTO) units. Based on CalWave's 2 body WEC technology, multiple improvements on absorber geometry and PTO controls have been achieved. This submission includes a final report including results and conclusions of the New Technology Qualification (NTQ) review of CalWave Power Technologies Inc's xWave technology, performed by American Bureau of Shipping. Project is part of the TEAMER RFTS 3 (request for technical support) program.

CalWave is developing a wave energy converter (WEC) called xWave, which operates fully submerged and is classified as a submerged pressure differential type. As ocean waves pass over the submerged wave buoy, a pressure differential is created, exciting the absorber in multiple degrees of freedom to oscillate in resonance with the ocean waves. Energy is efficiently extracted using multiple independently controllable power take-off (PTO) units. Based on CalWave's 2 body WEC technology, multiple improvements on absorber geometry and PTO controls have been achieved. This submission includes a final report including results and conclusions of the New Technology Qualification (NTQ) review of CalWave Power Technologies Inc's xWave technology, performed by American Bureau of Shipping. Project is part of the TEAMER RFTS 3 (request for technical support) program.

Experimental tank testing report for CalWave's 1:20 & 1:30 scale prototype testing at the Lir National Ocean Test Facility in Ireland. Testing was completed in January 2018. Test report includes description of the scaled prototype, primary testing objectives, instrumentation and basin calibration.