MySunROI

Microinverter vs String Inverter — Which Is Better?

Published 2026-02-20 · Updated 2026-07-07 · MySunROI Research Team

Free quote comparison

Compare solar quotes in your area

Free — compare pre-screened local installers. No obligation.

MySunROI may earn a fee if you request quotes through partner links. See our disclaimer.

Microinverters optimize each panel individually — better for partial shade. String inverters cost less and work well on unshaded roofs. Both are proven technologies.

Microinverters (Enphase)

  • Per-panel optimization
  • Better shade tolerance
  • Higher cost (~$0.20–$0.40/W more)
  • Easier single-panel replacement

String inverters

  • Lower cost
  • Centralized — one failure point
  • Optimizers (SolarEdge) bridge the gap
  • Best on clean, unshaded roofs

Solar costs by state

Frequently Asked Questions

Which lasts longer?

Both last 10–25 years. Microinverters have more components; string inverters are simpler.

Related tools & pages

More solar guides

View all 52 guides →