I am a firm believer in the electric sun hypothesis. Check out http://thesurfaceofthesun.com for some background. There are two inventions by experienced scientists that are reportedly over-unity by taking advantage of plasma discharges. The excess energy cannot be explained with conventional physics. Aether physics modeling is more appropriate. Many believe the same phenomenon occurring in these experiments also happen in the plasma atmosphere of our sun. Since both inventions appear to be drawing energy from the vacuum, I'll refer to them as zeropoint energy devices.
First invention: SAFIRE project plasma experiments:
Montgomery Childs from the SAFIRE project; (8:13 minutes) "This cloud of ions got so dense it blew off into the chamber atmosphere. There was a pressure spike during these events. Even more importantly is that although we limited the power to only 1800 watts DC, the oscilloscopes measured a short lived power surge of over 2 million watts. At times, at over 10 million watts. To offer some perspective on this, the Bruce Nuclear power plant in Canada, the largest one we have, produces 7 million watts. " https://www.youtube.com/watch?v=CFsTttzh0oA
Second invention is by Dr. Paulo & Alexandra Correa known as the PAGD (Pulsed Abnormal Glow Discharges) that utilizes very specific types of plasma discharges. It was endorsed by the late Dr. Eugene Mallove. There are two successful independent replications at this time. We need more replications and hopefully improvements. Inventor mentioned achieving greater yields but hasn't disclosed details.
http://overunity.com/15081/moray-and-correa-tube-experiments/dlattach/attach/145645/
https://www.overunityresearch.com/index.php?topic=17.0
http://overunity.com/1965/correas-pagd-in-action/
Note: Correa patents are expired.