Key Takeaways

• The U.S. solar industry achieved a record 9.3 GW of new module manufacturing capacity in Q3 2024, bringing total capacity to nearly 40 GW.
• 8.6 GW of new electricity generation capacity was installed, marking a 21% year-over-year increase, with Texas leading in deployment.
• Projected growth anticipates a cumulative total of nearly 450 GW by 2029, powered by strong demand despite facing various industry challenges.

Record Growth in U.S. Solar Manufacturing

The U.S. solar market has witnessed unprecedented growth in the third quarter of 2024, adding 9.3 GW of new solar module manufacturing capacity. This expansion includes the establishment of five new or expanded factories across states such as Alabama, Florida, Ohio, and Texas. As a result, the total solar module manufacturing capacity in the U.S. now approaches 40 GW, positioning domestic production to nearly meet the country’s solar energy demand.

According to the U.S. Solar Market Insight Q4 2024 report from the Solar Energy Industries Association (SEIA) and Wood Mackenzie, for the first time since 2019, solar cell manufacturing has resumed in the U.S., marking a significant step for the industry. The report highlighted that the solar sector installed 8.6 GW of new electricity generation capacity in the third quarter, a year-over-year increase of 21%, making it the largest third quarter on record.

The utility-scale sector led this growth, contributing 6.6 GW of new projects, as utilities and businesses increasingly adopt solar technology to meet rising electricity demands. The commercial solar market also thrived, with a 44% increase compared to the prior year, while community solar grew by 12%.

Texas remains the frontrunner in solar energy development, adding 2.4 GW of new capacity in Q3 2024 alone. The state now accounts for 26% of the total new solar capacity installed in 2024. Following Texas, Florida has made significant strides in solar adoption, with nearly 30,000 households installing solar systems during the year.

In the past two years, approximately 1.4 million American households have benefited from federal incentives to install solar energy systems, helping to reduce their energy costs. This widespread adoption is expected to continue, with projections indicating that total solar deployment will exceed 40 GW again in 2024 and maintain an annual growth rate of at least 43 GW in subsequent years.

Michelle Davis, head of solar research at Wood Mackenzie and the report’s lead author, expressed an optimistic outlook, stating that the U.S. solar industry is anticipated to grow at an average annual rate of 2 percent, ultimately reaching a cumulative total of nearly 450 GW by the end of 2029. Despite the robust demand, the growth forecast is tempered by challenges such as interconnection issues, labor shortages, supply constraints, and evolving policy landscapes.

By 2029, the cumulative solar capacity is projected to be sufficient to power over 71 million homes across the U.S., underscoring the potential of solar energy as a critical fixture in the nation’s energy landscape.

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