Q. Do your generators need fuel? No, Power X Generators capture the sun’s energy allowing you to store energy and utilize it. No fuel needed. Q. Do you custom make your generators? Yes each generator is custom made to our client specifications. Q. What type of technology do you use? We utilize LTO Technology to power our generators. The batteries in our generators can last for up to 30 years Q. What is the difference between a Lithium generator and AGM generator? Lithium generators are lighter in weight. The recovery on Lithium is 3x faster than AGM.