PES Supply Newsroom
Technical guides, product reviews, code updates, and industry news for installers, EPCs, and project managers
Best Solar Panels for Cloudy Climates: What Actually Matters
Cloud cover doesn't kill solar economics — but panel choice matters more. Efficiency, low-light behavior, and temperature coefficient separate good picks from great ones.
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Best Solar Panels for Cloudy Climates: What Actually Matters
Cloud cover doesn't kill solar economics — but panel choice matters more. Efficiency, low-light behavior, and temperature coefficient...
Canadian Solar 445W vs 435W: TOPHiKu6 Model Guide | PES
PES PES Supply Editorial Team Trade expertise from 50,000+ SKUs and 169 authorized brands Canadian Solar 445W vs...
Solar System Sizing Calculator: From kWh Usage to Array Size (2026) | PES
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. 2026 product line update...
Most Efficient Solar Panels of 2026: A Buyer's Guide for Installers & Homeowners
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. I've been speccing modules...
Batteries & Storage
View all Batteries & Storage →New batteries & storage coverage is in the works — browse all batteries & storage articles →
Generators
View all Generators →New generators coverage is in the works — browse all generators articles →
Electrical & Code
View all Electrical & Code →
REC Alpha Debuts at Intersolar: HJT Cells Hit Mass Production
REC Alpha Debuts at Intersolar: HJT Cells Hit Mass Production By Portlandia Electric Supply Technical Editorial Team ·...
HVAC
View all HVAC →New hvac coverage is in the works — browse all hvac articles →
Industry Desk
View all Industry Desk →New industry desk coverage is in the works — browse all industry desk articles →
The Latest
Canadian Solar 445W vs 435W: TOPHiKu6 Model Guide | PES
PES PES Supply Editorial Team Trade expertise from 50,000+ SKUs and 169 authorized brands Canadian Solar 445W vs...
Solar System Sizing Calculator: From kWh Usage to Array Size (2026) | PES
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. 2026 product line update...
Most Efficient Solar Panels of 2026: A Buyer's Guide for Installers & Homeowners
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. I've been speccing modules...
REC Alpha Debuts at Intersolar: HJT Cells Hit Mass Production
REC Alpha Debuts at Intersolar: HJT Cells Hit Mass Production By Portlandia Electric Supply Technical Editorial Team ·...
SunPower X-Series vs LG NeON R: Flagship Panels of 2019
A detailed head-to-head comparison of the two flagship residential solar panels of 2019: SunPower X-Series and LG NeON...