PES Supply Newsroom
Technical guides, product reviews, code updates, and industry news for installers, EPCs, and project managers
Generator Install Specification Guide for Electricians
Generator Install Specification Guide for Electricians (7-2000 kW) Standby generator specification, ATS selection, fuel-line sizing, exhaust routing, load calculations, NEC 700/701/702 code compliance, and the Generac, Kohler, Cummins, and Caterpillar SKUs stocked...
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EV Charger Installer Certification Guide
EV Charger Installer Certification Guide (EVITP, NABCEP, Manufacturer) How electrical contractors become certified EV charger installers — EVITP...
Industrial Cabinet + Enclosure Selection Guide
Industrial Cabinet + Enclosure Selection Guide (NEMA / UL / IEC IP) NEMA 1 through NEMA 12/13 selection,...
Service Entrance Equipment Multi-Brand Comparison
Service Entrance Equipment Multi-Brand Comparison (2026) Head-to-head comparison of Square D I-Line, Eaton Pow-R-Line, Siemens P-series, GE Spectra,...
Motor Control Selector for Electrical Contractors
Motor Control Selector for Electrical Contractors — DOL, Soft-Start, VFD Select the right starter for any three-phase induction...
Commercial Panel Upgrade Contractor Guide
Commercial Panel Upgrade Contractor Guide — 200A to 3000A Service Bid, permit, and install commercial service upgrades from...
Louisville Electrical Contractor Supply Guide
Louisville Electrical Contractor Supply Guide (2026 Edition) Same-day pickup coverage, bulk copper pricing, Kentucky Board of Housing amendments,...
Electrical Contractor NEC Code Compliance Library
Electrical Contractor NEC Code Compliance Library (NEC 2023) The 40 NEC 2023 articles commercial electrical contractors reference on...
Level 2 vs DCFC Charger Selection for Commercial Sites: The Dwell-Time Rule
The L2 vs DCFC decision reduces to one variable — how long the vehicle sits at your site....
Load Management for EV Charging Sites: The Engineer's Field Guide
Dynamic load management (EVEMS) is what lets EV sites run on a constrained service without a utility upgrade....
ChargePoint vs Wallbox vs Enphase IQ EV Charger: 2026 L2 Head-to-Head
Three of the most-specified commercial L2 platforms compared spec-by-spec — power output, load management, solar integration, warranty, and...
Commercial EV Fleet Electrification Buyer Guide: TCO, Infrastructure, and Deployment Timeline
Fleet electrification pencils by year 3 for Class 1–4 fleets when the infrastructure is sized right. Full buyer...
NEVI Compliance for EV Charging Deployments: The 2026 Field Guide
The National Electric Vehicle Infrastructure program funds up to 80% of DCFC deployments — but only if you...
EV Charging Site-Prep Distributor Guide: The Whole BOM, Not Just the Charger
PES Supply is a full-line distributor for EV site prep — transformer, switchgear, feeders, chargers, load management, and...
Contractor Tool Buying Guide 2026: Cordless Platforms, Testers, Benders, and ROI-First Kit Building
Battery platform economics, per-crew tool packages, test equipment thresholds, and specialty tool ROI. Milwaukee vs DeWalt vs Makita...
Contractor Safety and PPE Buying Guide 2026: Arc Flash, Fall Protection, Cut, and Respiratory
OSHA and NFPA 70E in practice: arc-rated clothing by cal/cm² incident energy, harness and SRL selection, cut-A rating...
Fasteners and Anchors for Electrical Installations: Contractor's Complete Selection Guide
Substrate-first fastener selection for electricians. Concrete, block, drywall, wood stud, steel stud, unistrut. Pull-out math, coating for corrosion,...
Contractor Consumables Subscription Program: Auto-Reorder Math for Electrical and Mechanical Trades
Wire nuts, tape, fasteners, blades, and marking paint on a scheduled drop. Cadence sheets, SKU baseline, freight math,...
Pallet Deals + Wholesale Bulk Pricing — Contractors, Installers, Resellers
Pallet Deals + Wholesale Bulk Pricing — Contractors, Installers, Resellers PES Supply offers pallet-quantity + bulk discount pricing...
LED Lighting Distributor: Lithonia, Cooper, Hubbell, RAB, WAC, Sylvania, Feit, Ledvance
LED Lighting Distributor: Lithonia, Cooper, Hubbell, RAB, WAC, Sylvania, Feit, Ledvance Direct-distributor coverage of 13+ stocked LED lighting...
Wire, Cable & Conduit Distribution: THHN, THWN, XHHW, MC, EMT, RMC, PVC — Southwire, Encore, Cerro | PES Distribution
Building wire (THHN, THWN-2, XHHW-2), service cable (SER, USE-2, UF-B), MC cable, and conduit (EMT, IMC, RMC, PVC...
Motor Control: Starters, VFDs, Contactors — Square D 8536, Eaton Freedom, Siemens SIRIUS, Schneider Altivar | PES Dis...
Sizing motor starters (NEMA vs IEC), spec'ing VFDs (Schneider Altivar, Eaton PowerXL, Siemens SINAMICS), and picking the right...
Load Center + Meter Combo Selector: Residential Meter Mains, Commercial Switchgear, Utility Approval | PES Distribution
Residential meter mains, commercial switchgear, amp-rating bands, main-lug vs main-breaker, indoor vs outdoor NEMA ratings, and utility-approved meter...
Circuit Breakers: Square D vs Eaton vs Siemens vs GE — QO / BR / QP / THQL and Powerpact / Series C / Sentron / Spect...
Head-to-head comparison of residential (QO, BR, QP, THQL) and commercial molded-case (Powerpact, Series C, Sentron, Spectra) circuit breakers...
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LADWP and Investor-Owned Utility RFPs - A Bidder's Guide for Electrical and Renewable Equipment Supply
LADWP and Investor-Owned Utility RFPs -A Bidder's Guide for Electrical and Renewable Equipment Supply Responding to Los Angeles Department of Water and Power, Southern California Edison, PG&E, ConEd, Duke, TVA,...
LADWP and Investor-Owned Utility RFPs - A Bidder's Guide for Electrical and Renewable Equipment Supply
LADWP and Investor-Owned Utility RFPs -A Bidder's Guide for Electrical and Renewable Equipment Supply Responding to Los Angeles Department of Water and Power, Southern California Edison, PG&E, ConEd, Duke, TVA,...
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Federal Contractor Buy-American Electrical Requirements - FAR 52.225 Compliance for Electrical, Solar, and Grid Equip...
Federal Contractor Buy - American Electrical Requirements - FAR 52.225 Compliance for Electrical, Solar, and Grid Equipment How Buy American Act (FAR 52.225-1) applies to electrical distribution equipment, solar modules,...
Federal Contractor Buy-American Electrical Requirements - FAR 52.225 Compliance for Electrical, Solar, and Grid Equip...
Federal Contractor Buy - American Electrical Requirements - FAR 52.225 Compliance for Electrical, Solar, and Grid Equipment How Buy American Act (FAR 52.225-1) applies to electrical distribution equipment, solar modules,...
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State Cooperative Purchasing Programs for Electrical Equipment - Sourcewell, OMNIA, TIPS, NASPO ValuePoint
State Cooperative Purchasing Programs for Electrical Equipment - Sourcewell, OMNIA, TIPS, NASPO A working guide to the four cooperative purchasing programs that dominate state and local electrical procurement - Sourcewell,...
State Cooperative Purchasing Programs for Electrical Equipment - Sourcewell, OMNIA, TIPS, NASPO ValuePoint
State Cooperative Purchasing Programs for Electrical Equipment - Sourcewell, OMNIA, TIPS, NASPO A working guide to the four cooperative purchasing programs that dominate state and local electrical procurement - Sourcewell,...
