Eamon Ryan (Dublin Bay South, Green Party)
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The regulations establishing a minimum 5.5% ethanol in petrol placed upon the market by renewable transport fuel obligation account holders were made on 1 April 2023. In making the regulations consideration was given to the responses received through a statutory consultation on the draft regulations, the impact on fuel prices, and other economic and environmental impacts.

The policy and regulation supporting the move to E10 takes into account the overriding consideration of the public good in decarbonising transport through increasing renewable fuels. Moving to E10 will bring an immediate climate-change mitigation measure using the existing vehicle fleet. Ethanol (E5) in petrol currently accounts for almost 10% of annual tailpipe carbon emission savings (8.5% in 2022).

The experience from jurisdictions where E10 and higher ethanol blends have been widely used for a prolonged period has not indicated issues of damage to petrol engines as a result of E10 use. Recent analysis published on the website of the US Department of Energy indicates no reliability or operability issues concerning E10, which has been in use in the US since the late 70s. The AA has also issued guidance assuring the use of E10, with advice for the maintenance, use and storage of some older vehicles and equipment. All vehicle owners and operators are required to maintain their vehicles to operating and roadworthy standards.

My Department continues to run an E10 public information and awareness campaign through advertising and the gov.ie/E10 website remains the main point of reference for further information.

The regulations will be kept under review within the context of the development and implementation of the Renewable Transport Fuel policy.