Switched On Clean Tech’s US Tariff Whiplash: Analyst Reaction
Feb 23, 2026
Matthew Hales, BloombergNEF trade analyst on supply-chain impacts; Derrick Flakoll, BloombergNEF policy associate specializing in North America trade. They unpack the Supreme Court tariff ruling, who benefits in solar and battery supply chains, potential blanket tariffs from the administration, which countries stand to gain, and the legal and timing limits shaping clean-tech trade shifts.
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Supreme Court Removed Quick Tariff Authority
- The Supreme Court struck down the use of the International Emergency Economic Powers Act to impose tariffs, removing a quick tool the Trump administration used.
- That decision cut roughly 15–20 percentage points from many tariff rates and reduced the administration's fast unilateral leverage on energy-related trade deals.
Solar And Stationary Batteries Were Hit Hardest
- The IEPA ruling most directly affects two clean-tech sectors: solar panels and stationary (non-EV) batteries used in energy storage.
- Other sectors like EV batteries and wind remain under different tariff authorities and were not impacted by the court decision.
Administration Response Could Undo Rate Cuts
- The administration moved to reimpose tariffs quickly, announcing a 10% across-the-board plan then threatening 15%, which would largely erase the court-created rate cuts.
- A 15% blanket would nullify gains for countries like Japan and South Korea and could raise net rates for others depending on exemptions.