Amazon Web Services has set up an online marketplace where customers can sell their excess EC2 Reserved Instances to other AWS customers.
Reserved Instances cost less because buyers make a one-time payment to reserve compute capacity for a specified term and get a discount on the hourly charges for that instance.
Amazon will charge sellers a 12% fee.
Interested parties can browse the site for term lengths and pricing options outside the standard one-year and three-year term lengths.
AWS suggests owners may want to move instances to a new AWS Region, change to a new instance type or sell capacity for projects that end before the term expires.