So...........do you do this kind of engineering for a living? This is a lot of stuff and I can't believe you implemented so much in the jam timeframe!
I went in blind and was pretty confused as to what did what. I understood the basic concepts, but since the initial lights are so dim and sparse, you don't easily see the effects of your actions, including mirrors. After capping out around 1k W/s, I took a look at your screenshots. That was VERY helpful, and from there I could start to engineer my own designs. My suggest to you is to somehow make those early light rays easier to see. Might be tricky since that'll change the balance as well.
After that point, this game got very fun. I was enjoying tweaking setups to squeeze out more output. The upgrades just seemed to flow in readily because I was usually absorbed in the core gameplay to notice I could buy one. I haven't played a factory optimization puzzle like this before. You tackle new kinds of problems, like having "2 solar panels and 2 filters, how can you maximize this since it's hard to catch a lot of light with the filters?"
In addition, the fact that you have limited space was a good decision. It really forces the player to figure out how to make this big chains of prisms and shifters without losing too much energy, whether it's due to the natural energy loss or trying to get the correct distance and angle on your concave lens. These are novel problems to solve.
I didn't expect to enjoy this one as much as I did. I'm not a huge fan of factory setup type games, but the addition of unique incremental mechanics really took this to the next level. Awesome job!
