Am I mistaken or are you making an intentional distinction when you refer to power rather than energy?
For example, a wind turbine doesn't have any power, but it can produce energy thanks to the power of wind. This energy, when twinned with a hydroelectric dam, can produce a continuous supply, by using the best of both worlds.
When you refer specifically to power and not energy, is that deliberate? Are the terms interchangeable in your vocabulary?