US clean energy and transportation investment reached $75 billion in the second quarter of 2026 — the second-highest quarterly figure on record and up 22% from the prior three-month period.
The results, published by the Clean Investment Monitor, were largely driven by retail investment, with residential battery storage installations, in particular, reaching $12 billion, double that of the first quarter, and coinciding with a long period of solar price decline.
Manufacturing investment also increased 4% compared to the last three-month period, breaking a six-quarter streak of consecutive declines, largely driven by the elimination of tax incentives following Trump’s One Big Beautiful Bill Act. However, while investment increased, project cancellations also rose by 4% from Q1, equivalent to $1.7 billion.
