To dream of a power plant represents an area of your life that all else depends on. An enabler of status, leverage, or success that you embarrasses you if it’s removed from your life. Good times or happiness that can’t continue if something important is lost.
Example: A woman dreamed of a power plant being about to explode. In waking life she knew her engagement was about to end. The power plant being close to exploding reflected her feelings about the influence of her coming wedding on all her social interaction disappearing.