Design screen says that adding solar panels to a ship decreases its range

[ekolis]

Describe the bug
When adding solar panels to a ship design, the design screen reports its range as decreased instead of increased, at least until the range becomes infinite.

Steps to reproduce

1. Design a ship
2. Add a solar panel

Expected behavior
The ship's range stat increases

Actual behavior
The ship's range stat decreases

Screenshots

Related issues
N/A

Testing plan
Tests for range calculations

Additional context
N/A