Shares of several solar companies, including Canadian Solar Inc. (NASDAQ: CSIQ), Enphase Energy, Inc. (NASDAQ: ENPH), First Solar, Inc. (NASDAQ: FSLR), and SolarEdge Technologies, Inc. (NASDAQ: SEDG), are trading higher Wednesday afternoon, possibly in response to President Joe Biden's recent announcement of increased tariffs on Chinese imports, which included a significant hike on solar cells.