Choose power for the demand you have.
Compare solar, satellites and fusion through useful power, fuel cost, fields and resilience.
Evidence reviewed 9 November 2026. Read the linked reference for formulas, sources and version limits; current account settings remain the final check.
What this guide covers
- Calculate solar and fusion output on the same baseline.
- Understand why Energy Technology improves every reactor.
- Plan a transition without losing mine production.
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Compare three different power sources
Solar Plants provide durable power without fuel. Satellites save fields but are vulnerable and temperature-dependent. Fusion offers dense, durable output at a Deuterium operating cost. The best mix depends on the demand, resources and infrastructure you already have.
Understand the scaling
Fusion output depends on reactor level and account-wide Energy Technology. Economy speed scales baseline fuel consumption, not energy output. Energy Technology does not raise Solar Plant or satellite output. Exact formulas and display-rounding assumptions are in the reference.
Read the worked comparison
The full-output comparison separates generated energy, fields and hourly fuel at ×1 and ×8 economy. It establishes output and field efficiency, not equal-cost superiority. Use the seven-row worked table before pricing an actual transition.
Why the same reactor becomes better
A shared Energy Technology upgrade can benefit several reactors, while a reactor upgrade helps one planet. At a common demand, compare total support costs and the resources retained after fuel. Spare power alone is not the financial benefit.
Switch in a controlled sequence
Keep existing production powered until replacement supply works. Compare net Deuterium and the next mine or crawler demand, retain recovery capacity, and verify any partial reactor setting in the resource screen. The reference preserves a transition checklist.
The decision rule
Prefer a system that meets useful demand with affordable construction, sustainable fuel and acceptable exposure. Existing solar, fusion and a modest satellite reserve can coexist. Do not demolish working infrastructure solely because a fresh-build calculation favors another option.
Detailed reference
Solar, satellites and fusion at a common demand, with account-wide research, fuel and recovery costs.
Quick checks
Review the key points. Ticks stay in this browser when storage is available.
Sources & version context
Evidence reviewed 9 November 2026. Read the linked reference for formulas, sources and version limits; current account settings remain the final check. Planning workflows and examples are Skie guidance. Game rules and interface requirements should be checked against the linked references and your current account.