Accurate by design
Every result accounts for conversion losses, depth of discharge, surge loads, and practical equipment sizes.
Solar design, made clear.
Helios gives homeowners, installers, and engineers a fast starting point for designing dependable solar power systems. Our calculations use established electrical sizing practices and transparent safety margins.
Simple to use
Complex relationships are translated into clear inputs and useful recommendations that update instantly.
Independent guidance
Helios is equipment-agnostic, helping you understand your needs before requesting installer proposals.