Solar Plant
The Solar Plant converts sunlight into electricity. It is the primary energy source for early and mid-game planets. No fuel required — unlike the Fusion Reactor, it runs indefinitely at zero operating cost.
Base Stats
| Property | Value |
|---|---|
| Base cost | 75 Metal · 30 Crystal |
| Cost factor | 1.5× per level |
| Prerequisites | none |
Cost Formula
Cost Table
| Level | Metal | Crystal |
|---|---|---|
| 1 | 75 | 30 |
| 5 | 379 | 151 |
| 10 | 2,883 | 1,153 |
| 15 | 21,894 | 8,757 |
| 20 | 166,262 | 66,505 |
| 25 | 1,262,558 | 505,023 |
| 30 | 9,587,552 | 3,835,021 |
Energy Production Formula
Energy Table
| Level | Energy |
|---|---|
| 1 | 22 |
| 5 | 161 |
| 10 | 519 |
| 15 | 1,329 |
| 20 | 3,007 |
| 25 | 6,349 |
| 30 | 12,883 |
Tips
Build one Solar Plant level for every 2–3 mine levels. Running a deficit cuts all mine production — an energy surplus is never wasted.
Around Solar Plant level 16–20, the Fusion Reactor starts becoming more cost-efficient per energy unit, especially if you have a Deuterium Synthesizer on that planet.
Solar Satellites provide ~26 × (maxTemp/4 + 20) energy each and are cheap to build in bulk. Useful on hot inner planets where solar efficiency is high.
Unlike the Solar Plant, Solar Satellites can be destroyed in battle. Never rely on them as your sole energy source on a contested planet.
See Also
Fusion Reactor · Solar Satellite · Metal Mine · Crystal Mine · Deuterium Synthesizer