- EcoBot (Ecological Robot), energetically autonomous robots, Bristol robotics laboratory, Bristol, United Kingdom
- E4, solar cleaning robot, Ecoppia Ltd., Herzlia, Israel
- Miscellaneous
- Compact Fusion Research, Lockheed Martin, Bethesda, Maryland, USA
- SWIFT project
- Urine-tricity++: Electricity from Urine, energetically autonomous robots, BRL, Bristol, United Kingdom
- Definitions
- Row-Bot, energetically autonomous artificial water boatman, Bristol robotics laboratory, Bristol, United Kingdom
- Hybrid integrated biological–solid-state system powered with adenosine triphosphate, Columbia Engineering, New York, USA