Major scientific breakthroughs don’t come cheap for taxpayers.
Check this out:

The U.S. Energy Department this week announced it plans to spend an additional $75 million to renew a project that seeks to “harness solar energy” for the production of transportation fuels.

The $75 million will go to the Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub established in 2010. If Congress appropriates the money, that is.

Without taxpayer funding, such a project would not be cost effective. It’s still not clear if such a project will ever be commercially viable, although that is the goal.