Long time lurker here. On the solar sails I thought it was amusing that it would take 125,000,000,000 m² or 12.5 Million km² just to get one measly ton of force, For reference the Earth's total surface area is 510,072,000 km² so it would be 2.45% of that. Assuming that it is carbon nanotubes with a weave tighter then half the wavelength of the light hitting it at 0.1 gram/m² your looking at 12,500 tons of carbon and a acceleration of a maximum of 0.00008 G's your payload will not be significant if its anything less than 125 tons. The power potential for a surface that large is immense, at 1.321 KW/m² in earth orbit you end up with 165.125 Terrawatts of power potential for reference mankind's total power usage as of 2012 (everything including the plankton that feed our fish we eat.) was 4700 TW in other words our solar sail could provide for 3.5% of the worlds needs. @FractalUK is there any chance of a Statite like functionality being possible with this module?