PES Supply Newsroom
Technical guides, product reviews, code updates, and industry news for installers, EPCs, and project managers
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 — on different roofs.
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AC Condenser Electrical Requirements — 2026 Contractor Guide
AC Condenser Electrical Requirements — 2026 Contractor Guide | PES AC Condenser Electrical Requirements — 2026 Contractor Guide...
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
15 min read Top 10 Solar Industry Trends Shaping Q3 2026 📋 Key Takeaways Bifacial module adoption has...
NEC 2026 Code Changes: Top 10 Updates Affecting Solar Installers
15 min read NEC 2026 Code Changes: Top 10 Updates Affecting Solar Installers 📋 Key Takeaways The 2026...
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?
Last Updated: July 2026 • Based on Cummins, Kohler, Generac, and Norwall Sizing Standards Standby generator sizing comes...
Natural Gas vs Propane vs Diesel Standby Generators
Last Updated: July 2026 • Based on Generator Pros, TT Power Group, and Ferrellgas Fuel Comparisons The right...
Build a 2026 residential solar simulator: calculate output gains from bifacial panels and AI-tracking vs standard TOP...
Last Updated: July 2026 • Based on NREL PVWatts Methodology, Bifacial Gain Field Studies, and 2026 Tracker Hardware...
Compare 2026 solar tech: TOPCon vs HJT vs Tandem - efficiency, temperature coefficients, and ROI for your roof space
Last Updated: July 2026 • Based on NREL Cell Efficiency Records, Manufacturer Datasheets, and Oxford PV Tandem Pilot...
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
When critical loads cannot tolerate interruption, a properly specified 80 kW Cummins emergency generator bridges the gap...
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...
Top 10 Solar Inverters That Deliver Maximum Savings in 2026
Last Updated: June 2026 • Based on Manufacturer Specifications, EnergySage Market Data, and NREL Performance Testing Your solar...
Sol-Ark vs EG4 Hybrid Inverters: 12K/15K vs 12KPV/18KPV
Hybrid inverter shootout — Sol-Ark 12K/15K vs EG4 12KPV/18KPV on continuous output, MPPTs, battery comms, listings, monitoring, and...
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Solar Module Sourcing in 2026: Regional Costs, Tariff Stacking, and the Domestic Content Math
Where solar modules are made in 2026, what they actually cost by region, how tariffs stack, and when domestic content pays for itself. Real numbers for contractors and developers.
Solar Module Sourcing in 2026: Regional Costs, Tariff Stacking, and the Domestic Content Math
Where solar modules are made in 2026, what they actually cost by region, how tariffs stack, and when domestic content pays for itself. Real numbers for contractors and developers.
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Module Prices Hit $0.34/W — So Why Did Your Commercial Quote Go Up?
Solar module prices dropped to $0.34/W in Q1 2026, but commercial system prices rose 4%. The real story is balance-of-system inflation — racking, wire, and labor.
Module Prices Hit $0.34/W — So Why Did Your Commercial Quote Go Up?
Solar module prices dropped to $0.34/W in Q1 2026, but commercial system prices rose 4%. The real story is balance-of-system inflation — racking, wire, and labor.
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The Safe Harbor Deadline Passed. Here's What Actually Happened.
The July 4, 2026 safe harbor deadline for full ITC has passed. We break down what developers got right, what they missed, and what the 60% credit means for projects...
The Safe Harbor Deadline Passed. Here's What Actually Happened.
The July 4, 2026 safe harbor deadline for full ITC has passed. We break down what developers got right, what they missed, and what the 60% credit means for projects...
