** U.S.-listed shares of solar companies fall premarket
** President Donald Trump on Monday directed federal agencies to strengthen provisions in the One Big Beautiful Bill Act that repeal or modify tax credits for solar and wind energy projects
** The order directs the Treasury department to enforce the phaseout of tax credits for wind and solar projects that were rolled back in the budget bill passed by Congress and signed into law by Trump last week
** SunRun RUN.O fall 6.8% and SolarEdge Technologies SEDG.O tumble 7.7%
** Enphase Energy ENPH.O down 4.1% and First Solar FSLR.O falls 3.4%
** "We believe the review...could create at least temporary disruption for solar and wind safe harbor order activity, potentially more significant depending on potential revisions," - J.P. Morgan analyst Mark Strouse
** RBC Capital Markets analyst Christopher Dendrinos expects industry to accelerate safe harbor activity in the interim
** "We believe the Trump administration is looking for Treasury to increase the safe harbor threshold for the current 5% rule," Dendrinos adds