Space Solar power?

The advantage of space-based solar power is that satellites would enjoy nearly continuous sunshine, which is the main disvantage of Earth-based solar power, very inconstant, it isn't available at night or when skies are cloudy.
But I still think that it would be cheaper, at least for now, finding the way to store energy for later use instead of launching stuff into space.
It is nice dreaming, but it has limits.