Solar Panel Efficiency: What's New for 2026

Tier-1 module efficiency continues to climb. Here's what that means for your roof.

Leading panel manufacturers now ship residential modules with conversion efficiencies above 22%. Higher efficiency means more kilowatts on a smaller roof footprint — useful for DFW homes with limited south-facing exposure.

TOPCon and heterojunction cell technologies are now mainstream, replacing older PERC designs. They offer better performance in the high heat that defines a Texas summer, and they degrade more slowly over 25 years.

If you got a quote even two years ago, today's equipment can produce noticeably more power from the same roof area.