Yes. We did refurbish the facility back in 2008. It was returned to commercial operation at the end of 2012-13. Yes, predominantly, the refurbishment was focused on the reactor side of the plant, which we call the primary side of the plant. We replaced the pressure tubes and some of the primary instrumentation. There was also money invested in replacing the low-pressure turbine rotors, as well as in putting in a digital control system for the turbine generator.
Most of the other secondary side, conventional side, power plant components are original. Basically, the difficulty we had last year was around our equipment reliability. We're improving our equipment reliability by having a more aggressive, preventive maintenance cycle. We're evaluating every component and subcomponent, determining its failure mechanism, and determining how to prevent failure and anticipate failure to make the plant more reliable in the long run.
We're undergoing that process right now. If you look at our power history for the five months into 2016, this year, we ran continuously until the outage. We had a good outage. It went a few weeks long because we had some additional work that we had to do based on discovery, but we came out of the outage and, with the exception of one upset, we've run continuously to this point. So, the effort that we're putting into improving our equipment reliability is paying off, and it will get more reliable and more predictable as we finish this process.
The process of equipment reliability is not directly related to the refurbishment of the pressure tubes and the reactor proper.