From muscle power, to burning wood, using steam and nuclear energy, humanity has found ways to produce more power for more people and their activities. However, to save the living planet from potentially calamitous ecological harm legislative decisions are being made to stop generating power from environmentally unsound energy sources. These include, but are not limited to, sources that produce carbon emissions, damage the geological structure of the Earth, or generate hazardous wastes. Moreover, in many cases, such sources cannot be renewed and so, as their availability diminishes, alternatives are needed to meet the energy demands of future generations. Energy and power play crucial roles in the provision of the necessities of life; breathable air, nutritious food, clean water and adequate housing. If these essentials are to be enjoyed by all people, they must be affordable. Can all these needs be met and sustained in the near-future and for subsequent generations? A modest goal may be the adoption of the Haudenosaunee principle of seven generations by which decisions made today should result in a sustainable future for the next seven generations. But it appears that the decisions made seven generations ago, at the start of the modern industrial period, have led, probably inadvertently, to the ostensibly grim environmental and climate issues of today. Can the drastic mistakes made then be corrected now for future generations by using power generated from sustainable external energy sources and celestial phenomenon over which we have no direct influence, other than the methods of conversion?