Reports

In the first quarter of 2026, actual investment in US clean technology manufacturing fell for a sixth consecutive quarter to $8 billion.

A report from MIT's Center for Energy and Environmental Policy Research uses evidence from the Clean Investment Monitor

This report marks the expansion of the Clean Investment Monitor to every country around the world, tracking clean investment from 2018 through 2025.

In the final quarter of 2025, clean energy and transportation investment in the United States totaled $60 billion, a 23% decline from Q3.

In the third quarter of 2025, clean energy and transportation investment in the United States totaled $75 billion, representing the highest quarter of investment on record.

In the second quarter of 2025, clean energy and transportation investment in the United States totaled $68 billion, a 0.3% decrease from the previous quarter, but a 1% increase from the same period in 2024. Clean investment accounted for 4.8% of total private investment in structures, equipment, and durable consumer goods.

In this first edition of the Clean Investment Monitor's new global database, we explore how EVs and batteries have been catapulted into mass commercialization.

In the first quarter of 2025, clean energy and transportation investment in the United States totaled $67.3 billion, a 6.9% increase from the same period in 2024 but a 3.8% decrease from the previous quarter.

Since the IRA's enactment, manufacturing has emerged as the fastest-growing segment of investment in clean energy technologies. We assess the state of supply chains for solar, wind, batteries, and electric vehicles.

In the final quarter of 2024, clean energy and transportation investment in the United States totaled $70 billion, reflecting a slight 1% decline from the previous quarter but a 6% increase from the same period in 2023.

Clean energy and transportation investment in the United States continued its record-setting growth in Q3 of 2024, reaching a new high of $71 billion.

As the United States approaches the two-year anniversary of the Inflation Reduction Act, this report provides a comprehensive analysis of actual investments in clean technologies and infrastructure since its enactment.

Investment in manufacturing clean energy and transportation technology continued to be the main driver of clean investment and growth.

The Biden administration’s recent decision to raise tariffs on imports of electric vehicles and batteries from China raises the question of how the levels of projected domestic EV and battery manufacturing capacity compare to projected demand.

Clean energy and transportation investment reached a new high in Q4 of 2023, at $67 billion.

In new joint analysis with Energy Innovation and the REPEAT Project, we compare on-the-ground investment progress with projections of the IRA's impact.

Investment in clean technologies is continuing at record levels in the United States, as demonstrated by new data from the third quarter of 2023.

Community-level clean investment trends in the first year after passage of the Inflation Reduction Act

Clean energy is quickly becoming one of the largest industries in the U.S. In our inaugural report, we introduce the Clean Investment Monitor and highlight key trends in investments in emission-reducing technologies.