1) Dielectric elastomers are promising materials for artificial muscles and can be used to generate power from mechanical energy through their elastic properties and ability to store and release electrical energy. 2) When stretched, dielectric elastomers store mechanical energy that can be converted to electrical energy upon contraction if connected to a load. Research is optimizing this process for applications like power generation from human motion or ocean waves. 3) The electrical energy generated is proportional to the square of the applied voltage and the ratio of contracted to stretched dimensions. DARPA has demonstrated heel-strike generators producing up to 0.8J per step, with potential for 1W average power from walking. EAP