3D printing could slash costs for offshore wind projects

first_img FacebookTwitterLinkedInEmailPrint分享Greentech Media:The towers and foundations for offshore wind turbines currently being deployed at sea, and the even larger machines under development, are so massive that shipping the components via road or rail is becoming increasingly difficult, if not impossible.To address the issue, a startup founded by a former National Renewable Energy Laboratory engineer aims to use concrete additive manufacturing, also known as 3D concrete printing, to build turbine towers and foundations at or near ports for less money and in less time than with conventional methods.Last month, JC Solutions LLC, an RCAM Technologies company, received a $150,000 grant from a U.S. Department of Energy small business R&D program to develop the “first-ever conceptual design and techno-economic assessment of an additively manufactured concrete offshore wind turbine foundation and tower.”The offshore project builds upon similar research under way in California, which was reported on by Greentech Media last November. There, the California Energy Commission awarded RCAM Technologies a $1.25 million grant to develop and test 3D concrete printing technology for onsite manufacturing of ultra-tall towers for land-based turbines.With the new offshore project, “I don’t have any plans to construct towers and foundations at sea, where the turbines are installed,” said Jason Cotrell, RCAM Technologies founder and CEO, in an interview. “All construction work would be done at the port, or near the port at a staging area—like a pre-cast concrete plant,” he added. “Such plants exist in nearly every region of the country. For near-site construction, the parts would be designed in sections that could be cost-effectively transported over local roads or rail.”For comparison, he said, each steel jacket foundation for the 6-megawatt turbines installed at Rhode Island’s Block Island offshore wind farm cost up to $10 million. Cotrell is shooting for $2 million per installed foundation using 3D concrete printing. He thinks he can build the components faster than with conventional methods, too. In his proposal for the DOE grant, Cotrell cited a figure stating it can take up to 135 days to manufacture the concrete or steel gravity-based foundation for an offshore turbine deployed in shallow water in Europe.More: How 3D concrete printing could slash time and cost in building offshore wind projects 3D printing could slash costs for offshore wind projectslast_img read more

Govt distances self from Imran Khan’s Facebook post

first_imgPIO Conference in India– even as Khan continues rampageDirector of the Department of Public Information (DPI), Imran Khan, continues to face fire for a comment made on his social media platform – Facebook – against the Indian Mission here, with Minister of State Joseph Harmon on Friday, saying that the personal view expressed by the State official does not reflect that of theDPI Director, Imran Khancoalition Government.Harmon distanced Khan’s actions from Government’s position at this week’s post-Cabinet press briefing at the Ministry of the Presidency.“It does not represent the position of the Government. We have excellent relations with India and we continue to work on those relations. It’s a mutually beneficial arrangement that we have with that country and we would like to work towards ensuring that it gets better,” he said.Minister Harmon further noted that while Government does not have much control over what persons post on their personal social media accounts, he said all they can do is ask holders of Government offices to restrain from making such statements.“This is the distinction I would want to make, where someone is in a GovernmentMinister of State Joseph Harmonoffice but expresses a personal view, that we as a Government cannot basically agree that this is the view of the Government. It is not a view of the Government, it is an individual view and that is the distinction I want to make,” the Government’s spokesperson noted.Khan on Wednesday posted a comment on his Facebook page, questioning whether the Indian High Commission in Guyana was interfering in the country’s internal affairs and was attempting to engage in destabilisation of the coalition Government.His statement was in relation to the recently concluded Persons of Indian Origin (PIO) Parliamentary Conference held in New Delhi on Tuesday, where a 23-member Guyanese delegation attended upon invite from the Indian Government.The delegation, which was the largest at the conference, comprised of 17 Opposition and three Government parliamentarians as well as three mayors – allIndian High Commissioner Venkatachalam Mahalingamof Indian heritage.The DPI Director, in the post, asked whether the Indian High Commission deliberately invited only three Government backbenchers and specifically ignored Government Ministers of Indian heritage.In response, however, resident Indian High Commissioner Venkatachalam Mahalingam, who was tagged by Khan on the post, explained that the top hierarchy of both the Indian and Guyana Governments are aware that the invitations were for 23 Members of Parliament and three Mayors of Indian origin who are not Ministers.“Hence reckless comments on such a serious issue on social media with the clear intention to mislead the general public by none other than the Director of Public Information is unfortunate, irresponsible, unprofessional and to say the least, mischievous given the excellent bilateral relations being enjoyed by both India and Guyana and the ongoing friendly cooperation in various multilateral fora,” Mahalingam commented on the post by the Government’s Information Chief. Meanwhile on Friday, Minister Harmon further outlined that the invitations from the Indian Government were to Members of Parliament and the respective Chief Whips on both the Government and Opposition sides were engaging the High Commission on the selection process of who would attend the conference.While there were several arguments pertaining to whether Khan should be asking these questions, or whether it was a direct attack on the Indian High Commissioner, several people found it strange that Khan, a public office bearer, would raise these concerns with a foreign mission in such a forum. In fact, Public Health Minister Volda Lawrence also took umbrage at the statement made by Khan, saying, “Imran Khan, this is distasteful and not in keeping with how this Government treats their guests. PLEASE REMOVE THIS POST.” However, instead of heeding the advice of the senior Government Minister, Khan went on to continue his rampage on the matter, subsequently posting a series of comments suggesting that the “lopsided invitation to Guyanese Parliamentarians” was part of the Indian Government’s “naked hegemonic ambitions” that is “not restricted within the borders of India”.Nevertheless, the State Minister disclosed that the matter has since engaged the attention of Prime Minister Moses Nagamootoo.last_img read more