US second quarter utility solar capacity additions declined 25% to 2.13GW on an alternating current basis from a year earlier as supply chain constraints, tax policy uncertainty, and trade restrictions hampered industry efforts to ramp project development, according to S&P Global Market Intelligence.

New additions were also below 2.38GW in the first quarter that, in turn, were about half the 4.75GW seen in the fourth quarter 2021.

In early June, the industry received some federal policy clarity after President Joe Biden’s administration proposed a 24-month waiver on potential duties linked to an ongoing solar trade probe involving China’s alleged evasion of US tariffs by dumping low-cost product in southeast Asia.