This dataset of electrical components was produced as part of the DTOceanPlus project. This is used in the Energy Delivery tool, and now can be used for other purposes. It comprises a range of components used in the design of offshore electrical networks for wave and tidal arrays: static and dynamic (umbilical) cables, wet-mate and dry-mate connectors, transformers, and collection points (both subsea hubs and surface substations). This dataset comprises a spreadsheet containing the data, and a technical note outlining the process of collating the data. For more information on the DTOceanPlus tools visit https://www.dtoceanplus.eu/.