Board Thread:Questions and Answers/@comment-63.232.109.6-20130410142703/@comment-6294495-20130410144415

Sorry, no way to make an infinite lava source like you can with water. There is a lava fabricator that requires power to make lava, but it uses more energy than the lava creates for a Geothermal Generator, so it isn't practical for a power station. You can make lava cells or buckets in the nether and send them back with an Ender Chest.