History of changes to: In-Stream Turbine
Date Action Change(s) User
Nov. 27, 2023, 2:12 p.m. Added 35 {"external_links": []}
Nov. 20, 2023, 2:02 p.m. Added 35 {"external_links": []}
Nov. 13, 2023, 1:33 p.m. Added 35 {"external_links": []}
Nov. 6, 2023, 1:31 p.m. Added 35 {"external_links": []}
Aug. 14, 2023, 1:30 p.m. Added 35 {"external_links": []}
Aug. 7, 2023, 1:31 p.m. Added 35 {"external_links": []}
July 31, 2023, 1:33 p.m. Added 35 {"external_links": []}
July 24, 2023, 1:35 p.m. Added 35 {"external_links": []}
July 17, 2023, 1:34 p.m. Added 35 {"external_links": []}
July 10, 2023, 1:25 p.m. Added 35 {"external_links": []}
July 3, 2023, 1:26 p.m. Added 35 {"external_links": []}
June 26, 2023, 1:25 p.m. Added 35 {"external_links": []}
June 19, 2023, 1:27 p.m. Added 35 {"external_links": []}
June 12, 2023, 1:29 p.m. Added 35 {"external_links": []}
June 5, 2023, 1:32 p.m. Added 35 {"external_links": []}
May 29, 2023, 1:27 p.m. Added 35 {"external_links": []}
May 22, 2023, 1:28 p.m. Added 35 {"external_links": []}
May 15, 2023, 1:31 p.m. Added 35 {"external_links": []}
May 8, 2023, 1:36 p.m. Added 35 {"external_links": []}
May 1, 2023, 1:27 p.m. Added 35 {"external_links": []}
April 24, 2023, 1:34 p.m. Added 35 {"external_links": []}
April 17, 2023, 1:29 p.m. Added 35 {"external_links": []}
April 10, 2023, 1:24 p.m. Added 35 {"external_links": []}
April 3, 2023, 1:26 p.m. Added 35 {"external_links": []}
Jan. 28, 2023, 11:08 a.m. Created 43 [{"model": "core.projectfund", "pk": 25133, "fields": {"project": 2320, "organisation": 4, "amount": 99300, "start_date": "2012-01-01", "end_date": "2013-06-29", "raw_data": 39561}}]
Jan. 28, 2023, 10:51 a.m. Added 35 {"external_links": []}
April 11, 2022, 3:45 a.m. Created 43 [{"model": "core.projectfund", "pk": 17236, "fields": {"project": 2320, "organisation": 4, "amount": 99300, "start_date": "2012-01-01", "end_date": "2013-06-29", "raw_data": 10117}}]
April 11, 2022, 3:45 a.m. Created 41 [{"model": "core.projectorganisation", "pk": 64692, "fields": {"project": 2320, "organisation": 2857, "role": "PARTICIPANT_ORG"}}]
April 11, 2022, 3:45 a.m. Created 41 [{"model": "core.projectorganisation", "pk": 64691, "fields": {"project": 2320, "organisation": 2857, "role": "LEAD_ORG"}}]
April 11, 2022, 3:45 a.m. Created 40 [{"model": "core.projectperson", "pk": 39890, "fields": {"project": 2320, "person": 3197, "role": "PM_PER"}}]
April 11, 2022, 1:47 a.m. Updated 35 {"title": ["", "In-Stream Turbine"], "description": ["", "\nAlthough the turbine could be used in river and even ocean currents, the most immediate\npotential use is in tidal streams. The British Isles are surrounded by millions of tons of\nmoving water twice per day, with concentrations in the Pentland Firth, the Channel Islands,\nand many localised sites.\nThere is no market yet, but the need for tidal power is well recognised - it is probably the\ncleanest and certainly the most reliable form of renewable energy.\nOnce our turbine is established, there is a potential worldwide market of many billions of\npounds.\nOther stream turbines are marginally economic, at best, only in absolutely optimal sites, but\neven then they have to be considered wasteful because it is simply not possible for any of\nthem to maximise the resource (e.g: 8% max possible extraction vs 20% 'allowable' by\nenvironmental standards).\nIt is easiest to provide an example from a specific case study that we have carried out for the\nCorran Narrows in Loch Linnhe, NW Scotland. Here the tide is 'only' some 1.3 metres/sec\nroot mean cube velocity (rmcv) and is considered uneconomic by MCT, the longestestablished\ntidalstream developer.\nHowever, Corran is a very sheltered site that borders the A82 and a major power line is\nalready in place, so, without affecting the leisure boat traffic, an initial investment of only\n£5m would produce annual profits of some £11.5m. It represents a Net Present Value of\n£110m at a discount rate of 7%. All figures derived from a DTI study by Edinburgh\nUniversity and the Government ROC (Renewables Obligation Certificates) scheme.\nAll of this with minimal harm to the underwater environment or the visual amenity - only a\nfew pontoons would be showing.\nSo, the opportunity is undoubtedly there once we can prove the concept and produce\nmeaningful amounts of electricity from a prototype.\nThere will obviously be technical problems to be overcome but the main difficulties have\nusually been environmental (see Severn Barrage). Our turbine is very acceptable\nenvironmentally, and socially with the promise of local jobs and a devolved power supply.\n\n"], "extra_text": ["", "\n\n\n\n"], "status": ["", "Closed"]}
April 11, 2022, 1:47 a.m. Added 35 {"external_links": [8351]}
April 11, 2022, 1:47 a.m. Created 35 [{"model": "core.project", "pk": 2320, "fields": {"owner": null, "is_locked": false, "coped_id": "6270fe61-e276-4237-bfec-451e332a0314", "title": "", "description": "", "extra_text": "", "status": "", "start": null, "end": null, "raw_data": 10030, "created": "2022-04-11T01:33:39.831Z", "modified": "2022-04-11T01:33:39.831Z", "external_links": []}}]