Since 2009, ARPA-E has funded over 500 potentially transformational energy technology projects. Many of these projects have already demonstrated early indicators of technical and commercial success. ARPA-E has begun the process of analyzing and cataloging some of the agency’s most successful projects. This document is a compilation of the first volume of these impactful technologies. Click below to go directly to individual projects within the compilation. 

Grid-Scale Batteries

• Fluidic (GRIDS) – Enhanced Metal-Air Energy Storage System with Advanced Grid-Interoperable Power Electronics Enabling Scalability and Ultra-Low Cost
• CUNY (GRIDS) – Low-Cost Grid-Scale Electrical Storage Using a Flow-Assisted Rechargeable Zinc-Manganese Dioxide Battery
• Harvard Flow Battery (OPEN 2012) – Small Organic Molecule Based Flow Battery+
• 24M (BEEST) – Semi-Solid Rechargeable Power Sources: Flexible, High Performance Storage at Ultralow Cost
• Energy Storage Systems (ESS) (GRIDS SBIR) – 25kW 200kWh Energy Storage System based on All-iron Hybrid Flow Battery
• Primus (GRIDS) – Low-Cost, High Performance Flow Cells
• UTRC (GRIDS) – Transformative Electromechanical Flow Storage System
• Alveo (OPEN 2012) - Open Framework Electrode Batteries for Cost-Effective Stationary Storage

Transportation

• Ford (AMPED) – High Precision Life Testing of Automotive Batteries and Grid Storage Batteries
• PARC (AMPED) – Smart Embedded Network of Sensors with Optical Readout
• Sila (SBIR) – Doubling the Energy Density Anodes of Lithium-ion Batteries for Transportation
• FastCap (OPEN 2009) – Open Low-Cost, High Energy and Power Density, Nanotube-Enhanced Ultracapacitors
• REL (MOVE) – Fully and Intricately Conformable, Single-Piece, Mass-Manufacturable High-Pressure Gas Storage Tanks
• Onboard Dynamics (MOVE) – Vehicle-integrated Natural Gas Compressor
• Plant Sensory Systems (OPEN 2012) – Development of High-Output, Low-Input Energy Beets
• University of Florida (PETRO) – Producing Terpene Biofuels in Pine Trees

Grid Operations

• Smart Wires (GENI) – Distributed Power Flow Control Using Smart Wires for Energy Routing
• Varentec (GENI) – Compact Dynamic Phase Angle Regulators for Transmission Power Routing
• Boston University (GENI) – Transmission Topology Control for Infrastructure Resilience to the Integration of Renewable Generation
• Autogrid (GENI) – Highly Dispatchable and Distributed Demand Response for the Integration of Distributed Generation

Power Electronics

• APEI (ADEPT) – Low-Cost, Highly-Integrated Silicon Carbide (SiC) Multichip Power Modules (MCPMs) for Efficient Electric Vehicle Chargers
• Transphorm (ADEPT) – High Performance GaN HEMT Modules for Agile Power Electronics
• Cambridge Electronics/MIT (ADEPT) – Advanced Technologies for Integrated Power Electronics
• Solarbridge Technologies (Solar ADEPT) – Scalable Submodule Power Conversion Methods for Power Density, Efficiency, Performance, and Protection Leaps in Utility-scale Photovoltaics
• Monolith Semiconductors (SWITCHES) – Advanced Manufacturing and Performance Enhancements for Reduced-cost Silicon Carbide MOSFETs
• Soraa (OPEN 2009) – Ammonothermal Bulk GaN Crystal Growth

Energy Efficiency and Clean Power – Direct and Enabling Technologies

• Makani (OPEN 2009) – Airborne Wind Turbine
• 1366 (OPEN 2009) – Direct Wafer: Enabling Terawatt Photovoltaics
• Foro (OPEN 2009) – Low-contact Drilling Technology to Enable Economical EGS Wells
• Brookhaven/AMSC & University of Houston/SuperPower (REACT) – Superconducting Wires for Direct-Drive Wind Generators
• Stanford Radiative Cooling (OPEN 2012) – Photonic Structures for High-Efficiency Daytime Radiative Cooling
• Harvard SLIPS (OPEN 2012) – Novel Slippery Coatings for Extreme Energy-savings
• UHV Technologies (METALS) – Low-Cost High-Throughput In-Line XRF Scrap Metal Sorter
• Phononic Devices (OPEN 2009) – Advanced Semiconductor Materials for High Efficiency Thermoelectric Devices
• Infinia Technology Corporation (ITC) (BEETIT) – An Advanced Cooler with Benign Refrigerants