| Development | Tidal technology collaborationMorlais Demonstration Zone | Development Context | Morlais tidal technology development; individual deployment proposals |
| Planning | O2-X developer and technology providerOrbital Eday 3 | Turbine Design Context | Orbital Eday 3, EMEC Fall of Warness - Tidal Energy Project |
| Consented | O2-X technology developerOrbital Eday 4 | Turbine Supply | Orbital Eday 4 |
| Consented | Tidal turbine development partnerPerpetuus Tidal Project | Turbine Supply | Proposed technology deployment option within the 30 MW consented site. |
| Decommissioned | Prototype developer and operatorSR2000 tidal turbine | Development And Operation | SR2000 prototype programme |
| Planning | DeveloperOrbital Eday 3 | Tidal stream | Orbital Eday 3, EMEC Fall of Warness - Tidal Energy Project |
| Consented | DeveloperOrbital Eday 4 | Tidal stream | Orbital Eday 4, EMEC Fall of Warness - Tidal Energy Project |