This is actually a combined heat and power system. The PiggyPower Cell 125 is built around a simple idea. When heat is moving through the cell and cold water is pulling that heat away on the other side, that temperature difference can be turned into usable DC electricity. Heat the bottom, cool the top, and now that heat flow has a second job. In this test, I am charging a phone, charging headphones, and running a WiFi router at the same time, and that is barely touching the total capacity of the

EP12 — Powerwall vs. Generator 3