An orbital mirror could be a relatively simple option to allow acceleration during the night and multiply the solar energy during the day. Plenty large target, less atmospheric distortion/losses so shouldn't be all that hard to hit.
Hopefully you don't own a house in the path under the ship. It would be really annoying to have bright flashes of day light sweep through randomly at night. Also probably not great for global warming and insect life.
You could adjust the focal point and use multiple reflector satellites and it likely wouldn't be super noticeable from the ground.