A contract between Wave Star A/S and EnergiNet.dk was established in July 2010 with the project title “En-ergy production on Roshage test systems (WSE-02)”, project no. 2009-1-10305. The aim of the project was to document that the Wavestar wave energy converter at Roshage was able to deliver the expected power according to the actual wave climate. The project is part of the so-called ForskVE-programme, and it is completed with Aalborg University as partner. Since 1 May 2010 Wave Star A/S has been measuring the waves at the location and the power produced by the Wavestar prototype. Every month a report and ac-companying data file containing the raw measurements are submitted to EnergiNet.dk for approval.
The project was split in two phases:
- Phase 1, May 2010 to September 2011: Focus was to demonstrate that the hydraulic power was higher than a specified target power performance curve. Phase 1 was finished in September 2011 where 14754 valid ten minute records with power production higher than the specifications, were recorded, documented and approved by EnergiNet.dk.
- Phase 2, October 2012 to December 2012 (three months): Emphasis was on the electrical energy. In phase 2 the capability of the machine to deliver at least 14.0[electrical MWh] in a three month period was documented. Phase 2 was completed after phase 1 was completed when the machine was ready for automatic continuous unmanned operation.
This document is the final report which presents the power measurements from both phase 1 and phase 2. Table 1 and 2 summarizes the measured results. The total electrical energy produced by the two generators was 52.9[MWh] in the period from May 2010 to December 2012. However, the largest amount of energy per month was produced during the three months in phase 2 where 15.6[MWh] was delivered by the gen-erators. In phase 1 the absorbed hydraulic energy was high but the produced electricity and the operational time was low. However, in phase 2 the operational time and the PTO efficiency was high resulting in a high electrical energy production. Details on measurements of the power production during phase 1 are given in Section 3, and phase 2 results are given in Section 4.