PES Supply Newsroom
Technical guides, product reviews, code updates, and industry news for installers, EPCs, and project managers
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500 Watt Solar Panel Buyer's Guide: Best Models, Specs & Prices for 2026
The 500-watt solar panel went from commercial curiosity to the default residential format in about four years. In...
Pure Sine Wave Inverter: 2026 Buyer's Guide for Installers & Off-Grid Builders
The inverter is the component your appliances actually talk to. Get the waveform wrong and the symptoms show...
Enphase vs Tigo 2026: Microinverters vs Selective MLPE Deployment
Tigo says put MLPE only where you need it. Enphase says put it everywhere. Both are right —...
AC Condenser Electrical Requirements — 2026 Contractor Guide
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. AC Condenser Electrical Requirements...
REC Alpha Pure-RX vs Qcells Q.TRON: Premium Residential Panels 2026
Premium panel shootout — REC Alpha Pure-RX (HJT) vs Qcells Q.TRON (TOPCon) on temperature coefficient, degradation, warranties, US...
Furnace — 2026 Contractor Guide
Furnace guide for contractors and installers — NEC requirements, sizing, and product selection. Updated June 2026.
Level 2 EV Charger Buyer's Guide 2026: Amperage, NEMA 14-50 vs Hardwire, and Electrical Requirements
🇺🇸/🇲🇽 Versión en español → "EV charger" covers everything from a $200 portable cord to a six-figure DC...
Top 10 Solar Industry Trends Shaping Q3 2026
Q3 2026 finds the solar industry in one of its periodic phase transitions: module technology generations are turning...
NEC 2026 Code Changes: Top 10 Updates Affecting Solar Installers
NEC 2026 Code Changes: Top 10 Updates Affecting Solar Installers Published July 28, 2026 · PES Supply Technical...
EG4 Solar Equipment Guide: 18kPV & XP Inverters, Batteries & Chargeverter Explained
EG4 solar equipment explained — 18kPV, 6000XP and 12000XP inverters, LL/LiFePower4 and PowerPro batteries, Chargeverter and GridBOSS, with...
12kW vs 16kW vs 20kW vs 24kW Standby Generator: Which Size Does Your Home Actually Need?
The four most-quoted standby generator sizes — 12, 16, 20, and 24 kW — differ by about $1,000–$1,500...
Natural Gas vs Propane vs Diesel Standby Generators
After a week-long ice-storm outage, nobody cares what their generator cost. They care whether it started at 2...
Build a 2026 residential solar simulator: calculate output gains from bifacial panels and AI-tracking vs standard TOP...
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. Build a 2026 Residential...
Compare 2026 solar tech: TOPCon vs HJT vs Tandem - efficiency, temperature coefficients, and ROI for your roof space
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. TOPCon vs HJT vs...
Victron vs OutBack 2026: MPPT Charge Controllers Compared
Victron SmartSolar vs OutBack FLEXmax — the ecosystem leader against the legacy off-grid workhorse. What changed, what did...
Victron vs Morningstar 2026: MPPT Charge Controllers Compared
Victron SmartSolar vs Morningstar TriStar — Bluetooth ecosystem polish against industrial/telecom-grade -40C durability.
Victron MultiPlus vs Sol-Ark 2026: Component vs All-in-One Hybrid Design
The deepest DIY/pro component ecosystem vs the simplest all-in-one box. Both build serious off-grid and backup systems —...
Solar Ballast Blocks Guide: Types, Sizing, Installation, and Safety Best Practices
Updated September 2026 — content reviewed and refreshed by the PES team. For current pricing and availability, see...
Trina vs JinkoSolar 2026: Vertex S+ vs Tiger Neo
Trina Vertex S+ vs Jinko Tiger Neo — #3 vs #1 globally, 25-year warranty vs 24% efficiency ceiling.
TOPCon vs HJT Solar Panels 2026: N-Type Cell Technology Compared
TOPCon vs HJT — the volume king against the efficiency aristocrat. What the cell technology actually changes on...
SolarEdge vs Tigo 2026: Full Optimizer Systems vs Selective MLPE
SolarEdge locks you into its inverter. Tigo works with almost anyone's. When does the lock-in pay, and when...
SolarEdge vs Hoymiles 2026: Optimizers vs 4-in-1 Microinverters
Centralized optimization vs distributed conversion — the two cheapest credible paths to module-level solar, compared honestly.
Sol-Ark vs Sungrow 2026: Hybrid Inverter Philosophies Compared
The US-native whole-home hybrid vs the global Tier-1 giant: battery freedom, pass-through power, and which one your AHJ...
Sol-Ark vs Generac PWRcell 2026: Open Hybrid vs Ecosystem Storage
The battery-agnostic whole-home hybrid vs the generator company's integrated energy ecosystem. The deciding factor is what else you...
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Solar Panel Fire Safety: What Installers and Building Owners Should Know
Last Updated: September 2026 • A Safety Reference for Installers, Contractors, and Building Owners Solar PV systems have a strong overall safety record, and the vast majority of installations operate...
Solar Panel Fire Safety: What Installers and Building Owners Should Know
Last Updated: September 2026 • A Safety Reference for Installers, Contractors, and Building Owners Solar PV systems have a strong overall safety record, and the vast majority of installations operate...
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New on the Floor: Five Project Kits That Just Landed
Five new project kits hit the PES catalog this week — from a $591 balcony solar pack to a full Enphase storage BOM. Real specs and live prices, verified October...
New on the Floor: Five Project Kits That Just Landed
Five new project kits hit the PES catalog this week — from a $591 balcony solar pack to a full Enphase storage BOM. Real specs and live prices, verified October...
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Winter Storm Season: Portable Generator Demand Climbs — What to Stock Now
Cold-weather outages drive the year's sharpest spike in generator demand. Here's what contractors and homeowners are buying, and how to beat the rush.
Winter Storm Season: Portable Generator Demand Climbs — What to Stock Now
Cold-weather outages drive the year's sharpest spike in generator demand. Here's what contractors and homeowners are buying, and how to beat the rush.
