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Archive for the ‘Wind Energy’ Category

In the wake of the Vineyard Wind turbine blade incident, it’s important to note that marine debris is a significant risk factor for mammals. This is a particular concern for baleen whales, like the endangered right whale, which filter large amounts of water. Per NOAA:

Marine Mammals: Many species of marine mammals have also been confirmed to eat marine debris. A review by Kühn and van Franeker found that 69 species of marine mammals have been found to ingest debris – that’s 56% of all marine mammals! This includes 44 species of odontocetes (toothed whales), manatees, and multiple seal species. Marine mammals are highly protected, which can make it difficult to research them. Most research on marine mammals takes place after an animal dies, making it difficult to understand what marine debris live animals eat. However, we do know that because baleen whales filter extremely large amounts of water while feeding, they may get plastic debris entangled in their baleen plates. 

An Argentinian study describes the “finding of plastic litter in the digestive tract of a southern right whale (Eubalaena australis) juvenile male, which was found dead on the shores of Golfo Nuevo, Chubut, Argentina in 2014.”

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Nantucket Current photo

Appropriate response by BSEE.

Late Tuesday afternoon, the Bureau of Safety and Environmental Enforcement said all operations are shut down until further notice.

“A team of BSEE experts is onsite to work closely with Vineyard Wind on an analysis of the cause of the incident and next steps,” the agency said in a statement.  

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Photo by Capt. Carl Bois shared with the Nantucket Current
Ack4whales photo of the damaged turbine

On Sunday (7/14), Capt. Carl Bois, of the fishing charter Topspin out of Nantucket, told the Current he noticed a significant amount of debris in the Vineyard Wind lease area.

“There was so much debris at the wind farm,” Bois said. “We covered many miles and only saw the debris at the wind farm site: big sheets of fiberglass with foam core and lots of loose foam.”

On Saturday night (7/13) the Coast Guard warned Mariners as follows: “Coast Guard received a report of 03 floating debris 10 meters by 2 meters in the vicinity of approximately 26 NM SE of Marthas Vineyard and 22 NM SW of Nantucket in position 40 59.559N 070 25.404W. All marines are requested to use extreme caution while transiting the area.

On Monday (7/15), Vineyard Wind confirmed that a turbine blade incident occurred on 7/13: “On Saturday evening, Vineyard Wind experienced blade damage on a wind turbine in its offshore development area. No personnel or third parties were in the vicinity of the turbine at the time, and all employees of Vineyard Wind and its contractors are safe and secure.”

On 7/16, Vineyard Wind issued another statement advising that they were deploying teams to Nantucket to clean up debris from the incident.

Comments:

  • Not a good look for the first large-scale offshore wind project in the US.
  • It’s unclear what the status of operations was at the time of the incident.
  • Vineyard Wind seems to be passing the buck a bit when they note that “GE, as the project’s turbine and blade manufacturer and installation contractor, will now be conducting the analysis into the root cause of the incident.” While GE’s findings are critical, Vineyard Wind, as operator, is fully responsible and accountable for the incident and should be leading the analysis.
  • Was their a third party review of the turbine design?
  • Was the incident reported to BSEE, the safety regulator for offshore wind? State and local government?
  • BSEE and the Coast Guard should ensure that Vineyard Wind’s findings and their own independent report are made publicly available in a timely manner. Ditto for Safety Alerts.
  • What other incidents have occurred during offshore wind facility construction and operations?
  • In 2017, Vineyard Wind requested to defer providing the full amount of the required financial assurance until year 15 of actual operations. That request was denied, but was approved when resubmitted in 2021. The regulations have now been revised to allow such deferrals of financial assurance on all offshore wind projects.

Vineyard Wind is a joint venture between Avangrid, a Spanish company, and Copenhagen Infrastructure Partners. They were

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BOEM’s land rush approach to offshore wind leasing will add up to 1086 turbine towers and 28 offshore substations (OSSs) in the Atlantic just from active projects with approved Records of Decision (RODs). (See the table below.) Another 17 active Atlantic commercial projects have yet to reach the ROD stage. Those projects should increase the total number of structures to >3000. Five more Atlantic wind lease sales are scheduled.

projectturbine towersoffshore substations
Coastal VA Offshore Wind2023
Revolution Wind1002
Sunrise Wind941
Atlantic Shores South200up to 10
Ocean Wind 198up to 3
Vineyard Wind 11002
Empire Wind 1 & 21472
New England Wind (phases 1&2)1505

Per the Construction and Operations Plan (COP) for Vineyard Wind, the topsides for a conventional electrical service platform (ESP) (also known as an offshore substation or OSS) are 45 x 70 x 38 m, which is larger in surface area than a typical 6-pile oil and gas platform (~30 x 30 m), and is comparable in size to a large jackup drilling rig.

The Atlantic Shores plan calls for 10 small, 5 medium, or 4 large OSSs. (Uncertainty regarding the number and types of structures seems rather common in wind COPs.) The large OSSs have topsides that are 90 m by 50 m and rise to 63 m above MLLW. These are large offshore structures whether for wind or oil and gas.

Vineyard Wind ESP

Despite the looming decommissioning obligations, BOEM’s financial assurance requirements have been relaxed to facilitate wind development.

Per BOEM, the “Rule to Streamline and Modernize Offshore Renewable Energy Development” is intended to “make offshore renewable energy development more efficient, [and] save billions of dollarsUnfortunately, the savings associated with relaxed financial assurance requirements translates to increased risk for power customers and taxpayers.

BOEM signaled their intentions on offshore wind (OSW) decommissioning three years ago when they granted a precedent setting financial assurance waiver to Vineyard Wind. Despite compelling concerns raised by commenters, the “streamlining” regulations codified this decision.

No one knows what the financial future will be for wind projects and the responsible companies. Financial assurance should therefore be established when the structures are installed, not years into the future as allowed by the revised regulations. What leverage will BOEM have then?

Nordsee One substation, Germany. Rystad Energy projects 137 new power substations offshore continental Europe this decade, requiring $20 billion in total investment.

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Rick Carrier became the first allied soldier to discover the Buchenwald concentration camp. The next day, April 11, 1945, he marched into the camp with Patton’s Third Army and liberated the prisoners.

More than a half century later, and after leading a successful effort to protect the American bald eagle, he was the first person to submit an offshore wind application to the Minerals Management Service.

Rick Carrier with life partner Lynn Ramsey, in Poland, following the 2012 March of the Living. Photo courtesy Lynn Ramsey.

Rick wanted nothing from the government except the opportunity to demonstrate his green hydrogen concept with a single turbine in the Atlantic. He did not ask for any subsidies or research grants. This war hero from the greatest generation just wanted to continue doing great things for the country and the world.

Unfortunately, the Energy Policy Act of 2005 had yet to be enacted, and the framework for permitting such projects had not been established. While we tried to find a way to make the project possible, the legal obstacles were too great.

It was an honor to have worked with Rick on his green hydrogen initiative. RIP.

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Illustration credit: Kellen Riell / The New Bedford Light
Glauconite has been identified within the boundaries of lease areas marked with green. Credit: Kellen Riell / The New Bedford Light

Anastasia Lennon has published several informative articles in the New Bedford Light on the challenges posed by the presence of glauconite on North Atlantic wind leases. The above illustrations explain those challenges and identify where glauconite has been found to date. Per her latest article:

Preliminary geotechnical analysis for New England Wind, an Avangrid project, showed a risk of turbine pile foundation refusal in 50 of nearly 130 turbine locations, or about 40%, according to 2023 records obtained through a Freedom of Information Act request. 

The mineral’s behavior poses a “significant risk” to offshore wind development, said BOEM, the federal regulator of offshore wind, in a paper last year. 

The potential for foundation problems associated with glauconite and other geotechnical factors are among the reasons why decommissioning financial assurance should be demonstrated in full when turbines and other facilities are installed, not years later.

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Decommissioning Vindeby wind project, Denmark

BOEM’s “Rule to Streamline and Modernize Offshore Renewable Energy Development” is intended to “make offshore renewable energy development more efficient, [and] save billions of dollars. Unfortunately, the savings associated with relaxed decommissioning financial assurance requirements translates to increased risk for customers and taxpayers.

BOEM signaled their intentions on offshore wind (OSW) decommissioning three years ago when they granted a precedent setting financial assurance waiver to Vineyard Wind. Despite compelling concerns raised by commenters, the “streamlining” regulations have codified this decision.

Cape May County, New Jersey, was among the commenters objecting to BOEM’s departure from the prudent “pay as you build” financial assurance requirement. The County commented as follows (full comment letter attached):

“[e]nergy-utility projects are in essence traditional public-private partnerships where technical and financial risks are transferred to the private sector in exchange for the opportunity to generate revenues and profit. Under the proposed rule, the Federal government is instead transferring risks associated with decommissioning to the consumer rather than to the private sector.

Cape May added:

[w]hile BOEM believes that if a developer becomes insolvent during commercial activity that a solvent entity would assume or purchase control, the County believes this is a risky assumption as the most likely reason for default is that a constructed wind farm developer is unable to meet its contractual obligations set forth under a Power Purchase Agreement (PPA) because its energy production revenues are not in excess of its operating costs. A change of hands would not remove these circumstances or make the project profitable.”

Cape May and others also commented on the threat of premature decommissioning as a result of storm damage. In response, BOEM asserts that these risks have been addressed in the latest standard for North American offshore wind turbines (Offshore Compliance Recommended Practices: 2022 Edition (OCRP-1-2022)). However, design standards, particularly those for offshore facilities, are not static. The recommended practice for OSW is likely to change multiple times in the coming years as storm, operating, and turbine performance data are updated and analyzed. The design standard for Gulf of Mexico platforms has been repeatedly refined and improved and is now in its 22nd edition.

In their response to public comments on the decommissioning risks, BOEM repeatedly asserts that they can adjust the amount and timing of required financial assurance as they monitor a lessee’s financial health. Unfortunately, a company’s finances can change quickly and BOEM’s options will be limited when it does. Increasing the financial burden on a struggling company that is providing power to a regional power grid will not be a simple proposition.

Strong comments from Cape May County:

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… and you deniers are fully responsible. There’s a reason why Texas is the most affected state 😉

But fear not, we will line our shores with wind turbines, restrict offshore oil and gas leasing, and subsidize carbon disposal in the Gulf of Mexico. All of this “help” will have a negligible effect on the climate, which will continue to change as it always has and always will.

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Add Dunkelflaute to the list of interesting and expressive compound German words. Die Dunkelflaute is a dark lull, a period of time in which minimal energy can be generated by the sun or wind. More specifically in German:

Die Dunkelflaute als sogenanntes Kofferwort beschreibt das gleichzeitige Auftreten von Dunkelheit und Windflaute. Diese Wetterlage entsteht typischerweise im Winter und sorgt für geringe Erträge aus Solar- und Windenergie bei gleichzeitig saisonal hohem Strombedarf. Eine Dunkelflaute kann mehrere Tage andauern. Kommen zu Dunkelheit und Windflaute noch niedrige Temperaturen hinzu, die für gewöhnlich den Strombedarf weiter ansteigen lassen, spricht man auch von “kalter Dunkelflaute.”

Note the prolonged Dunkelflaute (below) during which renewables provided minimal power in the middle of winter.

Unsurprisingly, wind and solar output are the lowest when the temperatures are the coldest. See the Danish summary for 2023 below. Note that wind output was also low when temperatures were above 15 deg. C.

Regional wind energy grids are not always an effective solution as Danish physicist Jens Christiansen, a nuclear energy advocate, has illustrated:

‘The wind always blows somewhere.’ Is that really true though? Here I’ve looked at the capacity factors of wind from five northern European countries in August The winds seem highly correlated, and there is almost a week-long period without significant wind anywhere.

Christiansen illustrates Denmark’s reliance on imported electricity:

Paraphrasing Margaret Thatcher: “The problem with electricity imports is that you eventually run out of other people’s electricity.” In the U.S., California imports more electricity than any other state and typically receives between one-fifth and one-third of its electricity supply from outside of the state.

Given that massive battery storage is well beyond current capabilities and restrictions on electricity consumption and economic growth are undesirable, redundant or complementary power sources are essential for a reliable grid. Natural gas power generation is most responsive to variable demand, and is thus a good complement to variable sources like wind turbines and solar panels.

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(2) the Secretary may not issue a lease for offshore wind development under section 8(p)(1)(C) of the Outer Continental Shelf Lands Act (43 U.S.C.1337(p)(1)(C)) unless
(A) an offshore lease sale has been held during the 1-year period ending on the date of the issuance of the lease for offshore wind development; and (B) the sum total of acres offered for lease in offshore lease sales during the 1-year period ending on the date of the issuance of the lease for offshore wind development is not less than 60,000,000 acres.

‘Inflation Reduction Act of 2022,” p. 646

Lease Sale 261 was held on 12/20/23. Absent legislative action, no wind leases may be issued after 12/20/24 unless another oil and gas lease sale is held prior to that date. Given that the minimalist 5 year oil and gas leasing plan, which is being challenged, does not propose a sale until 2025, wind lease issuance will likely be suspended at the end of the year. (Note: I wonder if the legislative restriction also applies to lease assignments from existing owners to new owners? Probably not, but that would be very significant given the current state of the offshore wind industry.)

The legislative restriction may be a partial explanation for the apparent rush to issue wind leases. 16 new wind leases were issued in 2022 and 2023, bringing the total number of active leases to 36. The philosophy seems to be this: issue as many leases as you can, as fast as you can, wherever you can (ala James Watt’s failed strategy for the oil and gas program.) Coastal residents are not entirely thrilled.

Perhaps the wind program should be required to develop 5 year leasing plans, as is the case for the oil and gas program. This might facilitate a more holistic approach to wind energy development and ease concerns about cumulative impacts.

Morro Bay protest

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