When we originally launched the Lawrencium cluster project, we said there might be a possibility of a charge for CPU cycles to recover some of the costs. Unfortunately, that time has come and we will start recharging for cycles. The good news is that the charge will only be $0.01 per cpu-hour in addition to the monthly $25/user account fee so we anticipate a minor impact to everyone's budget. For further information, visit the SCS project page.