Here is a wonderful quote from Raniero Cantalamessa in the book Come, Creator Spirit. This could be the basis for a whole comparision between why the “world” hasn’t been able to ‘convert” to solar (or wind) energy and why the church has difficulty using the energy of the Spirit for its life and practice:

This is what we need most of all: supernatural power and effectiveness in serving the reign of God. The main problem that the Church is facing is the same as the problem facing the world as a whole, but on a different level. It is the question of the supply of energy. How do we make sure of energy supplies sufficient to sustain life? Where will we find this energy, from below of from above? In the case of physical energy, to seek it from below means to drill wells for oil, but we know that oil not onlyis not a renewable resource, but that its use also causes all sorts of pollution. For these reasons, we are searching anxiously for power “from above,” in this case, how to harness solar energy. the energy that comes to the earth in the form of light is thousands of times better than the energy we get from burning fossil fuels. It has been calculated that the energy of the sun’s rays falling during one year on the roads and streets of America alone could deliver twice the energy derived from all the world’s consumption of fossil fuels in the same length of time. There is no comparison between the one form of energy and the other; the energy “from heaven” is immeasurably more powerful than the energy “of the earth.”

But on the spiritual level too, we stand before a choice: Do we look for the energy we need “from below,” in ourselves and the resources of our intelligence and our entrepreneurial spirit, or do we look for it “from on high,” from the risen Christ, the Sun of Justice? The world is frantically trying to convert from one source of energy to another, from fossil fuels and nuclear resources to solar power which is infinitely cleaner and also free. The church is constantly in need of the same “conversion.

(see Zech 4:6-7)“