The energy situation is actually changing very quickly precisely because renewables and storage are so cheap. Building a new natural gas plant today is really hard to justify in most places in the world.

Capitalism will actually save the day, because a bunch of capitalists advanced renewable technology to the point where it was cheap.

The biggest impediment to change right now is actually political interference in deployment of cheaper renewables. You see this all across the US both in intentional and unintentional ways. Trump explicitly cancels permits for wind, tries to ban solar on federal lands, and forces coal plants to keep running even when they are super expensive and raise the cost electricity.

Unintentional political impediments are also endemic in the US; permitting and interconnection of residential solar makes it 5x-6x more expensive than places like Australia, even in places like California that should be accelerating residential solar and storage.

There's a lot to be hopeful about when it comes to climate change, in addition a lot to be scared about.