Core Insights - The U.S. Treasury Department clarified eligibility for clean energy tax credits under the "One Big Beautiful Bill," easing investor concerns with clear qualification criteria [1] - The legislation phases out tax credits for new renewable energy projects unless construction begins by July 4, 2026 [1] Group 1: Tax Credit Guidelines - Projects remain eligible under the 5% "safe harbor" rule if developers invest at least 5% of total project costs and complete construction within four years [2] - Larger installations must demonstrate that "physical work of a significant nature" has begun to qualify for tax credits, moving away from the 5% safe harbor for these projects [2] Group 2: Analyst Reactions - Analysts at Jefferies viewed the update as a "clear win" for residential solar, alleviating fears of stricter rules and retroactive changes [3] - Citi analysts noted the guidance was "better than anticipated," as it was not retroactive and the investment threshold did not increase above 10% [3] Group 3: Market Performance - Clean energy ETFs, such as Wilderhill Clean Energy Invesco ETF (PBW) and Nasdaq Green Energy Index ETF (QCLN), are at a 52-week high [4] - Electric vehicle ETFs have rallied due to favorable clean energy regulations and Ford's $5 billion U.S. investment plan, alongside a potential rate cut by Fed Chair Powell [5] - Tesla shares rose over 6% in one day, contributing to a 3% weekly gain, positively impacting EV ETFs like iShares Self-Driving EV and Tech ETF (IDRV) [6]