Dyson Sphere Program Power Grid explained In Dyson Sphere Program, you need to harness energy of various kinds to power your factories. A power grid, at its core, is amazingly simple. All you need is: A building that generates power (such as a Wind Turbine); A building that consumes power (such as a Mining Machine); A building that connects the generators to the consumers (such as a Tesla Tower); (Optional) A building that stores energy (such as an Accumulator). Every power-generating building (like Wind Turbines), and every range-extender (like Tesla Towers) produce a circle of "energy" around them. A building is considered "powered" if its central tile is covered by one of these circles. It's best to build big blocks of power generators away from your production buildings, and then connecting one to the other with lines of Tesla Towers.