According to the Solar Energy Industries Association, solar developers completed $6.8 billion in large-scale installations last year. The investments were primarily driven by U.S. tax incentives and the lower costs of imported panels, which made solar power competitive with fossil fuels like natural gas and coal.

Solar Was Going to Take Off

“Solar was really on the cusp of being able to completely take off,” Zoe Hanes, chief executive of solar developer Pine Gate Renewables, told Reuters.

However, in response to the new tariffs, GTM Research, a clean energy research firm, lowered its 2019 and 2020 utility-scale solar installation forecasts for the U.S. by 20% and 17%, respectively.

Solar developers project the tariffs will initially incrase the cost of major installations by 10%.

More companies are tightening their belts as a way to adapt to the sudden changes. For example, utility-scale developer Cypress Creek Renewables said was forced to cancel or freeze $1.5 billion in projects. Developer Southern Current made a similar decision on about $1 billion in projects.

For more information on the photovoltaic panel industry, visit our solar category.