I'm not sure I understood your question, but let me try to answer it.
One of the things that's paramount is that the private sector needs to sense an inevitability of the direction of the government. I mentioned the Japanese example. When they see where the world is going, they will invest in helping to realize that world. In the economies that are most successful today, the signals line up.
The challenge in some economies is that you get confusing signals, and then investors do not want to invest, because the 20- or 30-year investment might not actually be allowed to operate. This can be applied to both high-fossil assets and low-energy, low-carbon assets. What's needed is the sense of inevitability about the transition. The responsibility for that starts with the government, but then, of course, involves corporations and the private sector.