That's been the joke of Solar for a while. Engineers could have told you all the way back in the 1970s (really, the 1910s) that it costs less money to leave a big plate out in the bright sun than to drill a giant hole and hope there's enough spicy rocks at the bottom of it to justify the expense.
We should have crested this hill a lot sooner, but the heavy emphasis on subsidized fossil fuels during the 80s, 90s, and 00s kept these fuels artificially cheap. Meanwhile, fossil fuel firms actually did invest in Green Energy R&D but only for the purpose of erecting "patent thickets" that would hinder competitive growth of these alternatives.
This “patent thicket” can create barriers to innovative low-carbon technologies, particularly in markets requiring expensive licensing fees or with complex patent litigation (Cannuscio 2008). A strengthened IPRP can increase market concentration and reduce competition (Liu et al. 2018), with large corporations able to maintain market control in such environments through patents on key technologies. This control not only restricts the entry of emerging low-carbon technologies into the market but also perpetuates the reliance on existing high-carbon technologies.
This has lead to big surges in the development and deployment of Green Energy grids outside of the countries doing most of the cutting edge research. Americans are only now catching up.