This bill aims to significantly alter the tax treatment of wind and solar energy projects by phasing out certain federal tax credits. It specifically targets the clean electricity production credit (Section 45Y) and the clean electricity investment credit (Section 48E) when they are attributable to electricity generated using wind or solar energy. Furthermore, the legislation restricts the transferability of these specific credits for wind and solar projects, meaning they cannot be sold to unrelated parties. The bill establishes a clear four-year phase-out schedule for both the production and investment credits for wind and solar. Beginning in the first calendar year after enactment, the credit amount will be reduced to 80 percent, then 60 percent in the second year, 40 percent in the third, and 20 percent in the fourth. After the fourth calendar year, the credit will be entirely eliminated for electricity produced or facilities placed in service using wind or solar energy.