Over the past four quarters, $275 billion was invested across the US in the manufacture and deployment of clean energy, clean vehicles, building electrification, and carbon management technology, up 2% from the prior year. $61 billion of this investment occurred in the first quarter of 2026, reflecting an 9% decrease relative to the same period in 2025. These figures report real dollars spent on new facility construction or retail purchases.
Rhodium Group and MIT CEEPR’s Clean Investment Monitor is a comprehensive database, updated each quarter, of actual investment across the United States in:
Manufacturing: The construction or expansion of factories that manufacture clean energy, clean vehicle, building electrification, or carbon management technology.
Energy and Industry: New or expanded facilities to produce clean energy, capture carbon dioxide emissions, or decarbonize industrial activity.
Retail: The purchase and/or installation of clean electricity generation and storage, clean vehicles or building electrification technology by individual households and businesses.
To create a historical baseline against which to assess recent clean investment developments in the US, CIM includes all investments in our covered technologies since 2018. This results in a database with roughly 22,000 individual facilities, 5 million zero-emission vehicle registrations, 28 million heat pump sales, and 4.5 million distributed electricity generation or storage installations as of Q1 2026. Greenfield facilities are included in our actual investment estimates only when it’s confirmed that they have broken ground, regardless of originally reported timelines.
In the past two years, companies have invested $86 billion in clean energy and vehicle technology manufacturing projects, up significantly from $50 billion invested over the previous two years, though investment has slowed in recent quarters. The dominant driver of this spending is the electric vehicle supply chain, from critical mineral production to battery and charger manufacturing to final vehicle assembly.
The pipeline of new clean energy and transportation manufacturing investment—measured by new announcements in manufacturing projects—totaled $44 billion over the past two years, down by 70% compared to $149 billion during the previous two years.
Investment in deploying technology to decarbonize energy and industrial production in the US totals $193 billion over the past two years, up by 35% compared to $143 billion during the prior two years. Energy technologies accounted for more than 97% of recent investment, with utility-scale solar and storage as the top two at $147 billion. Investment in emerging climate technologies—clean hydrogen, sustainable aviation fuels, carbon management and new approaches to decarbonizing the production of cement, iron and steel, and pulp and paper—totaled $6 billion over the past two years, 53% more than the $4 billion invested in prior period.
In the past two years, companies have announced a total of $347 billion in new investments in clean energy production and industrial decarbonization projects, an 16% increase compared to the previous two-year period.
In the past year, American businesses and households invested $131 billion in the purchase and installation of zero-emission vehicles (ZEVs), heat pumps, and distributed renewable energy generation, fuel cells, and energy storage systems. That’s a 3% decrease from the previous year.
Within Retail, the vast majority of investment has been in the purchase of ZEVs. American businesses and households invested $91 billion in ZEVs in the past year, a 5% decrease from the previous year. Purchase and installations of residential and commercial rooftop solar systems, other distributed renewables, fuel cells and battery storage totaled $19 billion, up 20% year-on-year. Heat pump purchases and installations were down by 10% relative to the prior four quarters at $21 billion.
