First Solar, Inc. (NASDAQ: FSLR) shares have tripled since June 2022 — largely due to inflation. When President Biden signed the Inflation Reduction Act (IRA) of 2022 into law last summer, it put a range of provisions in motion to lower prices, reduce the deficit and strengthen a shaky economy. On top of pouring billions into home energy efficiency upgrades and supply improvement, the law extended the solar tax credit by 10 years.