

About 100 years ago there was only human and animal muscle strength to put things into motion, but now we use fossil fuel to move mountains.
This is a blessing for man and animal. We no longer need to do heavy physical labor from early in the morning till late in the evening. With more free time and more possibilities, our freedom has increased dramatically.
However, fossil fuel is falling out of grace. There is a lot more, but we are increasingly aware that further unrestrained use can destroy our planet. We need to be sustainable: sun, wind and derivatives.
In this transition we discover that sun and wind don’t fit in a jerrycan. We really need to think about storage!