The Advanced Research Projects Agency – Energy (ARPA-E) is inviting proposals for the Grid-free Renewable Energy Enabling New Ways to Economical Liquids and Long-term Storage (GREENWELLS) program, aimed at developing innovative reactor technologies that convert renewable energy into sustainable carbon-containing liquids. The program seeks to address the challenges of grid interconnection by promoting the use of renewable energy sources, such as wind and solar, for long-term energy storage and reducing emissions in transportation sectors. With an estimated total funding of $38 million, individual awards will range from $306,872 to $4.3 million, and applicants must submit concept papers by January 25, 2024, with full applications due by April 18, 2024. For more information, interested parties can visit the ARPA-E eXCHANGE website or contact ARPA-E at arpa-e-co@hq.doe.gov.