Consumer demand controls industry, and progress happens. Ask any unemployed harpooner.
The costs of producing electricity from dirty fuels is currently either remaining stable or rising due to the costs of carbon capture and storage.
Overall costs of producing electricity from solar and wind are projected to continue to fall. Battery costs are also expected to fall.
(The added costs of CCS technologies has almost doubled the cost of both gas and coal electricity generation.)
As the world moves towards a future no longer dependent on dinosaur juice, new coal power plants are becoming more expensive to finance, thus making them less likely to be built.
Pay attention to those who have expertise and a vested interest, not to ideologues blowing gas:
Hitherto oil-dependent Saudi Arabia has instituted a renewable energy policy - "
Vision 2030" - a strategic framework to reduce its economic dependence on its ever-depleting oil supply.
Norway has been a prosperous nation for quite some time, and hydropower has been the basis of its industrial development and prosperity for more than 100 years. Its plan to reduce its use of fossil fuels even further is not an unproven, quixotic pipe dream. For one of
those, see
Soyuz.
Where are the visionaries investing for the future? Elon Musk had the perspicacity to establish Tesla in 2003. He created countless jobs and spearheaded technological and engineering feats that dirty-fuelers had scoffed at.
In recent decades the cost of wind and solar power generation has dropped dramatically. This is one reason that the U.S. Department of Energy projects that renewable energy will be the fastest-growing U.S. energy source through 2050.