Those questions are determined by how many solar panels and transmitters you have on the satellite?
For comparison, the ISS generates 240kW when in sunlight. So for the 7MW mentioned upthread to power an airliner (or half a Eurostar train), you need something 28 times larger than the ISS.
For comparison, the ISS generates 240kW when in sunlight. So for the 7MW mentioned upthread to power an airliner (or half a Eurostar train), you need something 28 times larger than the ISS.