The world needs a new source of energy, an unspillable source.

Do I only need solar panels to have energy in day and through the night?

So I want to go completely solar. Do I need the connected solar panels alone for after sundown hours; Do I need something else in order to have energy to run my entire house throughout the night?

In other words do solar panels store the energy for after sun-down or do I need other devices to store the energy?