Market update · Global
US Solar Market Faces Quality Challenges Amid Expanding Global Manufacturing
The US solar industry is experiencing variable module quality as new suppliers enter the market, driven by complex procurement policies and rapid expansion of manufacturing capacity globally. While the US has sufficient domestic module capacity, the influx of new factories, especially in emerging markets, has led to increased defect rates and quality concerns. Established manufacturers, including those in China, are also facing quality issues due to cost-cutting measures. Industry experts highlight the ongoing chal
SolTraCo market update · · 3 min readExpansion of Global Solar Manufacturing and US Market Capacity
The global solar manufacturing landscape has rapidly evolved, with many countries outside China emerging as manufacturing hubs. The US and India are among the fastest-growing markets with enough domestic module capacity to cover their own demand. As of May 2026, the US had 66GW of annual nameplate capacity for modules, supplemented by globally available FEOC-compliant and non-tariffed capacity.
Many new manufacturing facilities in Asia, Africa, and the Middle East are being established specifically to serve the US market.
Quality Challenges from New and Established Manufacturers
The entry of numerous new manufacturers has introduced quality and reliability issues, with new factories experiencing higher defect rates during ramp-up periods. Testing laboratories report record-high failure rates, a trend observed not only in new markets but also among established Chinese manufacturers.
Chinese manufacturers are reportedly using thinner materials and faster processing times to mitigate financial losses, contributing to increased defects. Industry experts note that growth and change typically reduce quality temporarily, with defects more prevalent in regions with newer production facilities.
Impact of Trade Policies and Market Dynamics on Quality
Complex US protectionist policies and trade scrutiny, such as those affecting Ethiopian manufacturers, are pushing buyers toward new tariff-free markets where production is still ramping up. This dynamic complicates efforts to achieve stable, high-quality manufacturing throughput.
Batch and pre-shipment testing reveal significant defects in some modules, with a competitive market environment and low barriers to entry encouraging some manufacturers to cut corners. Despite these challenges, some regions have shown rapid improvements in quality.
Sources
This update is an original SolTraCo synthesis of the linked industry sources. Reported facts and commercial interpretation are kept separate. It does not contain confidential deal information and is not investment, legal or technical advice.