Let's start at the beginning

Once upon a time, in a land far away, lived a man called Keef.
With his fair maiden Mogaret he enjoyed a simple rural idyll beneath the sunny Australian skies.
However
There was a problem.
He was bereft of power. He had no energy and was entirely gridless.
Keef was not silly, looking upward to the sky he quickly realised that the answer was simple.... SOLAR POWER.

He rushed out to his nearest supplier and purchased some batteries and a 100Watt panel.
He also procured some high efficiency LED lights and accoutrements and he said
Let There Be Light
And there was light.

SO FAR SO GOOD