Meter reads "0" over 6 months after solar install

Our Solar system has been up and running for over six months, and this photo shows that our meter is only now reading "0" (it started out at exactly 50,000). For the whole summer, we've been producing more electricity than we were consuming, and now that the days are shorter, and since the sun has moved, we're producing about 1/5th of the electricity that we used to, so we're using up our 'credit'.