Adds higher tiers of solar panels and accumulators. (Default production multiplier *10, *100, *1000. Configurable). Makes space efficient solar farms viable and reduces the hassle to place as many panels.
I'm currently right before space science, and the option of researching ultimate solar panels despite the fact I'm nowhere close to Fulgora is available. you aren't alone in this boat as I've forgotten to set science pack techs as prerequisites before as well as a Modder :p