# US solar manufacturing expansion

> Live situation record from CLSTR: https://clstr.news/situations/us-solar-manufacturing-expansion
> Updated: 2026-09-23T04:42:00.000Z. Sources: 5. Developments: 2.

The United States solar manufacturing sector is undergoing a period of rapid expansion in both capital investment and production capacity. 

Individual companies are securing significant funding to scale operations, such as Suniva, which raised $835 million in debt and equity to build a new 4.5 GW facility in South Carolina. This project is expected to increase the company’s total domestic capacity to 5.5 GW by 2028.

On a broader scale, cumulative capital expenditure in the domestic solar photovoltaic sector is projected to reach $12.2 billion by the end of 2026, a surge largely attributed to the 2022 Inflation Reduction Act. This investment has translated into tangible output, with domestic factories reaching a milestone of 100 gigawatt-peak of cumulative module production by the second quarter of 2026. Analysts indicate that the pace of production is accelerating, suggesting the next 100 GW could be achieved in as little as three years.

## Timeline

### 2026-09-23: U.S. solar manufacturing capex to reach $12.2 billion by 2026

U.S. solar manufacturing capex is projected to hit $12.2 billion by 2026, while cumulative domestic production has reached the 100 GW milestone, fueled by the Inflation Reduction Act.

2 sources. https://clstr.news/cluster/us-solar-manufacturing-capex-to-reach-122-billion-by-2026

### 2026-09-09: Suniva raises $835 million to expand U.S. solar cell capacity

Suniva has raised $835 million to build a new 4.5 GW solar cell manufacturing facility in South Carolina, aiming to increase its total U.S. production capacity to 5.5 GW by 2028.

3 sources. https://clstr.news/cluster/suniva-raises-835-million-to-expand-us-solar-cell-capacity

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Cite as: US solar manufacturing expansion. CLSTR, https://clstr.news/situations/us-solar-manufacturing-expansion