The apartment is powered by solar panels and an unspecified source of wind power. It relies on an array of fuel cells to store the generated electricity.
房子主要由太阳能电池板和不知何处而来的风能供电，并装有一排燃料电池储存电力。
2
If we re-render the fuel into the array every frame, we can simulate a solid piece of evaporating fuel.