Came across this today. Deadline for applications is Friday November 15th. If you have an annual taxsaver ticket you can get parking in the parkbytext car parks at stations for €150.
As dereko1969 says, monthly and annual taxsaver tickets are available but only if your employer offers them, they are not obliged to offer either and some places will only allow annual tickets though the cost can generally be spread over the year. An annual ticket is generally the same price as ten monthly tickets. http://www.taxsaver.ie/Ticket-Types/