I was sent a link for transformer explosions in Fort Worth, Texas, which happened a few days ago. The video shows amazing coloured explosions which were attributed to lightning strikes on the power lines somewhere out of shot.
The comments on the video on YouTube draw attention to the orbs/spheres/things which can be seen in the sky at the beginning of the film. Some people questioned the authenticity of the film, but it seems to be borne out by eyewitnesses and news reports around Fort Worth and I see no reason for assuming it is fabricated.
In the comments on the video, some people drew attention to the fact that there had been transformer explosions around the US in the days around the Fort Worth explosions. SheilaAliens has gathered reports of four here.
There are also reports of transformer explosions in Germany, Brazil and Portugal. It made me wonder if this sort of thing is going on all the time and we simply don't notice it, or whether this is a new phenemenon... or maybe tied to the age of the transformers? Seems odd, anyway. I will add to this post as I find more videos of thesame phenomenon.