Dyson Sphere does not affect Terra Palus. After installing the energy repeater in orbit and getting it confirmed by the message in the chat (after 100 rocket launches), the energy connectors (MK1) do not provide any energy to the grid (no other energy sources applied). (I have about 5k satellites around the sun)
https://mods.factorio.com/mod/slp-dyson-sphere-reworked/
(installed with Enable All Planet Mods)
https://mods.factorio.com/mod/kry-all-planet-mods/discussion/68964cd97a08ab261eb526f6
One more thing - even though there is an 8-minute day-night cycle and 20% solar power in the atmosphere (according to Space Map), the solar panels never generate any power.