Wind Turbine Danger of Greenhouse Gas SF6 Sulphur Hexafluoride

Falmouth Massachusetts 3 Vestas V-82 type 1.65 megawatt wind turbines should we worry about Greenhouse Gas SF6 Sulphur Hexafluoride in older wind turbines?

How many turbines have MSDS safety sheets - 

Please ensure that this MSDS is received by the appropriate person

Vestas Wind Turbine Greenhouse gas SF6 Sulphur hexafluoride

Vestas Material restricted list Document ID: 0064-0319

 Valid from: 15 March 2017
2017.01.30 New document, information comes from the old Version 6. Vestas Chemical and Material Blacklist
1. Purpose The purpose of this document is to provide information about which products Vestas has restricted the use of based on regional or local legislation, and which products Vestas restricts the use of due to their special hazard classification. The overall aim of the list is to protect employees and ensure the future production by limiting the use of products which are expected to be prohibited by authorities in the future. 
2. Area of Validity The Material Restricted List is applicable for chemicals and materials used in Vestas products, for testing, maintaining or servicing Vestas’ products, in Vestas’ production, in Vestas’ buildings as well as in all business units of Vestas Wind Systems. 
3. Coming into force This Material Restricted List is coming into force with the 7th version of the Vestas Blacklist, since the information in the Material restricted list was previously located in the Vestas Chemical and Material Blacklist. This Material Restricted List is valid for all newly introduced chemicals and materials that are not already in use in Vestas. Materials already in use in Vestas that are restricted according to the restricted list must be reevaluated and, if necessary, have an action plan created for their continued use. This action plan must be prepared by 1st of September 2017. Restricted Materials must be evaluated for the possibility of using an alternative product. Evaluations and Action Plans for the restricted product must be prepared by 1st of September 2017. 
4. Legal considerations Even if a product is not prohibited in a country, there can still be a lot of restrictions on its use. For example, Carcinogenic, Mutagenic and Reproductive toxic substances, also known as CMR compounds are not illegal to use in countries such as Spain, Denmark, and China. However, there are several restrictions and requirements for using these substances. Examples of these are special requirements for storage of the materials under lock, special training or requirements of employees and special permits for the factory or location. It is therefore important to investigate the specific legal requirements in the specific countries where the product is to be used. 
5. Vestas Material Restricted list The Vestas Material restricted list contains two tables. The first contains specific overall hazards classifications which makes a product restricted according to the list. The second table contains specific substances with very high focus from the authorities for being phased out and is likely to be prohibited in the future and these are therefore also restricted. 
Table 2: Substances  Group Substance CAS-no. Remarks/ reference
                               Greenhouse gas SF6 (Sulphur hexafluoride) (Insulator in switch gear)
Notes about SF6 gas 
Most of the wind turbines contain SF6 gas, which is 23,500 times more potent greenhouse gas than carbon dioxide and remains in the atmosphere for at least 1,000 years.
Turbines leak a small amount of gas during normal operation
Sulphur hexafluoride, or SF6, is widely used in the electrical industry to prevent short circuits and accidents.
Cheap and non-flammable, SF6 is a colourless, odourless, synthetic gas. It makes a hugely effective insulating material for medium and high-voltage electrical installations.
It is widely used across the industry, from large power stations to wind turbines to electrical sub-stations in towns and cities. It prevents electrical accidents and fires.
Just one kilogram about of SF6 warms the Earth to the same extent as 24 people flying London to New York return.
It also persists in the atmosphere for a long time, warming the Earth for at least 1,000 years.
As renewable projects are getting bigger and bigger, we have had to use it within wind turbines specifically,
Another concern is that SF6 is a synthetic gas and isn't absorbed or destroyed naturally. It will all have to be replaced and destroyed to limit the impact on the climate.

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Maine Center For Public Interest Reporting – Three Part Series: A CRITICAL LOOK AT MAINE’S WIND ACT


(excerpts) From Part 1 – On Maine’s Wind Law “Once the committee passed the wind energy bill on to the full House and Senate, lawmakers there didn’t even debate it. They passed it unanimously and with no discussion. House Majority Leader Hannah Pingree, a Democrat from North Haven, says legislators probably didn’t know how many turbines would be constructed in Maine if the law’s goals were met." . – Maine Center for Public Interest Reporting, August 2010 Part 2 – On Wind and Oil Yet using wind energy doesn’t lower dependence on imported foreign oil. That’s because the majority of imported oil in Maine is used for heating and transportation. And switching our dependence from foreign oil to Maine-produced electricity isn’t likely to happen very soon, says Bartlett. “Right now, people can’t switch to electric cars and heating – if they did, we’d be in trouble.” So was one of the fundamental premises of the task force false, or at least misleading?" Part 3 – On Wind-Required New Transmission Lines Finally, the building of enormous, high-voltage transmission lines that the regional electricity system operator says are required to move substantial amounts of wind power to markets south of Maine was never even discussed by the task force – an omission that Mills said will come to haunt the state.“If you try to put 2,500 or 3,000 megawatts in northern or eastern Maine – oh, my god, try to build the transmission!” said Mills. “It’s not just the towers, it’s the lines – that’s when I begin to think that the goal is a little farfetched.”

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Hannah Pingree on the Maine expedited wind law

Hannah Pingree - Director of Maine's Office of Innovation and the Future

"Once the committee passed the wind energy bill on to the full House and Senate, lawmakers there didn’t even debate it. They passed it unanimously and with no discussion. House Majority Leader Hannah Pingree, a Democrat from North Haven, says legislators probably didn’t know how many turbines would be constructed in Maine."

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