Ps3 – My PS3 will not start

I was able to solve this by resetting all the PS3 settings and all the controllers. It's not the greatest thing reconfiguring everything for your PS3, but at least it doesn't delete any game or save data.

Apparently the PS3 kept thinking it was receiving a signal when there was no signal being sent, like it was trapped in there constantly trying to connect something that wasn't there. After the power outage, I tried to start my PS3 via the controller but it didn't work. Then when I started the PS3 via the power button on the front (moments later), the controller turned itself off and I had to attempt to reconnect it again. Weird issues, all is good now though.

You could try the procedure found on this page. Repeating the instructions here:

Hold down the power button until the PS3 turns off. Then hold the button down while it turns on. Hold it while you hear a first beep, a second beep, and a third beep. That will cause it to power off again.

Then hold the power button again through two single beeps and finally release it after a double beep. This will give a menu of safe mode options, some of which may help you resolve the issue. You'll need a USB attached controller to use, and some options may erase the data stored on the hard drive.