Energy innovation can take many forms, and the variety in energy research was on display this week at the 2025 ARPA-E Energy Innovation Summit just outside Washington, DC. ARPA-E, part of the US Department of Energy, provides funding for high-risk, high-reward research projects. The summit gathers projects the agency has funded, along with investors, policymakers, and journalists.
Hundreds of projects were exhibited in a massive hall during the conference, featuring demonstrations and research results. Here are four of the most interesting innovations *MIT Technology Review* spotted on site:
* Steel made with lasers
* Rocks that can make fuel
* An electric guitar powered by iron nitride magnets
* Batteries for powering high-performance data centers
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**From the article:**
Energy innovation can take many forms, and the variety in energy research was on display this week at the 2025 ARPA-E Energy Innovation Summit just outside Washington, DC. ARPA-E, part of the US Department of Energy, provides funding for high-risk, high-reward research projects. The summit gathers projects the agency has funded, along with investors, policymakers, and journalists.
Hundreds of projects were exhibited in a massive hall during the conference, featuring demonstrations and research results. Here are four of the most interesting innovations *MIT Technology Review* spotted on site:
* Steel made with lasers
* Rocks that can make fuel
* An electric guitar powered by iron nitride magnets
* Batteries for powering high-performance data centers