Mobile and robust solar panels provide 500 Watts power at 24 volts when the sun is shining strongly. This energy is stored in batteries with enough capacity to power sound and lighting for three hours or more nights or on cloudy days.
500 Watts does not seem like much. But with modern LED technology both sound and lighting are possible for less than that. The RGB theatre spots can create hundreds of colors. This intelligent use of modern design allows versatile stage lighting with the energy needed for just one modest halogen spot.
The double skin (a water-resistant, light-reflective outer canvas and a dark theater inner tent), combined with the air vents in the cupola ventilate and cool as once the indian tepees did.
The feasibility of sustainable technology is here not just a promise but reality.