PES Supply Newsroom
Technical guides, product reviews, code updates, and industry news for installers, EPCs, and project managers
Wholesale Solar Equipment & Complete Energy Solutions | PES Supply
Last Updated: September 2026 • A Buyer's Overview for Contractors, EPCs, Developers, and Facility Teams Most electrical and energy projects don't fail on the big decisions — they stall on procurement. Panels...
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Solar
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Wholesale Solar Equipment & Complete Energy Solutions | PES Supply
Last Updated: September 2026 • A Buyer's Overview for Contractors, EPCs, Developers, and Facility Teams Most electrical and...
This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown...
Enphase IQ8 vs APsystems QS1: Cost-Per-Watt Breakdown (2026)
Enphase IQ8 vs APsystems QS1: Cost-Per-Watt Breakdown (2026) One microinverter per panel versus one box per four panels...
MidNite Hawke's Bay vs Victron MPPT RS: 100A Face-Off
Hawke's Bay 120A vs SmartSolar MPPT RS 450/100: 600V vs 450V strings, US-made vs ecosystem, and live cost-per-amp...
Batteries & Storage
View all Batteries & Storage →
This Week in Power & Solar: Factory Paper, Tandem Clocks, and the Tariff Floor (Oct 11)
US solar factory capacity is still mostly announcements, tandem cells got a real timeline, tariffs keep writing module...
LFP Battery Prices in 2026: The Floor Is Close — What to Buy Now
LFP cell prices hit RMB 0.34–0.41/Wh and pack prices $70–125/kWh in 2026. Why the decline is flattening, what...
Battery Runtime Calculator: Ah to Hours With DoD & Inverter Losses
Interactive battery runtime calculator: capacity in Ah or Wh, derated by depth of discharge and inverter efficiency, divided...
Off-Grid Battery Bank Sizing Calculator: kWh, Amp-Hours & Autonomy Days
Interactive battery bank sizing calculator: daily kWh, autonomy days, DoD, and inverter efficiency in — bank kWh, amp-hours,...
Generators
View all Generators →
This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown...
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...
Generator Sizing Calculator: Running + Starting Watts to the Right kW
Interactive generator sizing calculator with a build-your-own load list: running watts plus largest starting surge plus 25% headroom,...
Electrical & Code
View all Electrical & Code →
This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown...
NEC 310.16 Ampacity Table (2026): Copper & Aluminum by Gauge
NEC 310.16 Ampacity Table (2026): Copper & Aluminum by Gauge The full 60°C / 75°C / 90°C conductor...
EV Charger Breaker Sizing Chart (NEC 625)
EV Charger Breaker Sizing Chart Breaker and wire sizes for every Level 2 EV charger, using the NEC...
Friday Floor Scan: 5 Quiet Workhorses Worth a Second Look
No new arrivals this week, so we scanned the floor instead: five proven SKUs — refrigerant to breakers...
HVAC
View all HVAC →Flex Duct CFM Chart: Every Size from 4″ to 18″ (2026 Guide)
Flex Duct CFM Chart: Every Size from 4″ to 18″ (2026) How much air each flex duct size...
Friday Floor Scan: 5 Quiet Workhorses Worth a Second Look
No new arrivals this week, so we scanned the floor instead: five proven SKUs — refrigerant to breakers...
Service Entrance Load Calculator: NEC 220 Standard Method (Sq Ft + Appliances + HVAC)
Interactive NEC Article 220 standard-method load calculator: square footage, appliances, range, dryer, HVAC, and EV charging in —...
HVAC Contractor Pallet Freight and LTL Guide: Hazmat Routing, DOT Compliance, and Landed Cost Economics
How refrigerant and HVAC parts actually move through the freight network -- and how contractors cut $1,500-4,000 per...
Industry Desk
View all Industry Desk →
This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown...
MidNite Hawke's Bay vs Victron MPPT RS: 100A Face-Off
Hawke's Bay 120A vs SmartSolar MPPT RS 450/100: 600V vs 450V strings, US-made vs ecosystem, and live cost-per-amp...
Friday Floor Scan: 5 Quiet Workhorses Worth a Second Look
No new arrivals this week, so we scanned the floor instead: five proven SKUs — refrigerant to breakers...
This Week in Power & Solar: Factory Paper, Tandem Clocks, and the Tariff Floor (Oct 11)
US solar factory capacity is still mostly announcements, tandem cells got a real timeline, tariffs keep writing module...
The Latest
This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown...
Enphase IQ8 vs APsystems QS1: Cost-Per-Watt Breakdown (2026)
Enphase IQ8 vs APsystems QS1: Cost-Per-Watt Breakdown (2026) One microinverter per panel versus one box per four panels...
NEC 310.16 Ampacity Table (2026): Copper & Aluminum by Gauge
NEC 310.16 Ampacity Table (2026): Copper & Aluminum by Gauge The full 60°C / 75°C / 90°C conductor...
EV Charger Breaker Sizing Chart (NEC 625)
EV Charger Breaker Sizing Chart Breaker and wire sizes for every Level 2 EV charger, using the NEC...
Flex Duct CFM Chart: Every Size from 4″ to 18″ (2026 Guide)
Flex Duct CFM Chart: Every Size from 4″ to 18″ (2026) How much air each flex duct size...
MidNite Hawke's Bay vs Victron MPPT RS: 100A Face-Off
Hawke's Bay 120A vs SmartSolar MPPT RS 450/100: 600V vs 450V strings, US-made vs ecosystem, and live cost-per-amp...
Friday Floor Scan: 5 Quiet Workhorses Worth a Second Look
No new arrivals this week, so we scanned the floor instead: five proven SKUs — refrigerant to breakers...
This Week in Power & Solar: Factory Paper, Tandem Clocks, and the Tariff Floor (Oct 11)
US solar factory capacity is still mostly announcements, tandem cells got a real timeline, tariffs keep writing module...
Smart Load Management: EV Charging on a 100A Panel (No Service Upgrade)
A smart load manager lets a Level 2 EV charger live legally on a 100A panel — NEC...
LFP Battery Prices in 2026: The Floor Is Close — What to Buy Now
LFP cell prices hit RMB 0.34–0.41/Wh and pack prices $70–125/kWh in 2026. Why the decline is flattening, what...
How Wind Loads Affect Solar Panel Selection and Mounting
Last Updated: September 2026 • A Design Reference for Installers, Designers, and Project Developers A solar array is,...
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...
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...
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...
String Inverter vs Microinverter vs Power Optimizer: How the Architecture Changes
Last Updated: September 2026 • A Technical Comparison for Installers, Contractors, and System Owners Every grid-tied solar system...
Low-Light Solar Performance: Which Panels Produce More Energy on Cloudy Days?
Last Updated: September 2026 • A Technical Buying Guide for Cloudy and Overcast Climates A panel's datasheet efficiency...
Solar Panel Pallets vs Containers: Which Buying Option Saves More Money?
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. September 2026 update: the...
Solar Panels + EV Charging: How to Build an Energy-Efficient Home
Last Updated: August 2026 • A Practical Guide for Homeowners Combining Solar and EV Charging An electric vehicle...
Solar Panel Wholesale Pricing: What Installers Should Know in 2026
Last Updated: August 2026 • A Procurement Guide for Installers, EPCs, and Contractors Panel pricing is rarely the...
Solar Microgrids: How Communities Can Build More Resilient Energy Systems
Last Updated: August 2026 • A Practical Overview for Municipalities, Campuses, and Community Organizers A single home with...
AI + Solar Energy: How Artificial Intelligence Is Changing Solar System Design
Last Updated: August 2026 • An Industry Overview for Installers, Contractors, and Property Owners Solar system design used...
Volts to Amps Conversion: How to Calculate Amps from Volts (Calculator 2026)
Updated September 2026 — refreshed against the live PES catalog; product pricing verified 2026-09-26. Volts to Amps: How...
MWh to kWh Conversion: Megawatt-Hours to Kilowatt-Hours Calculator (2026)
MWh to kWh: Calculator, Formula & Chart Megawatt-hours to kilowatt-hours in one step — with the storage and...
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Wholesale Solar Equipment & Complete Energy Solutions | PES Supply
Last Updated: September 2026 • A Buyer's Overview for Contractors, EPCs, Developers, and Facility Teams Most electrical and energy projects don't fail on the big decisions — they stall on...
Wholesale Solar Equipment & Complete Energy Solutions | PES Supply
Last Updated: September 2026 • A Buyer's Overview for Contractors, EPCs, Developers, and Facility Teams Most electrical and energy projects don't fail on the big decisions — they stall on...
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This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown rules, and standby demand keeps climbing.
This Week in Power & Solar — October 20, 2026
The $0.38/W module price floor lands Dec 4, China's export rebate is gone, NEC 2026 rewrites generator shutdown rules, and standby demand keeps climbing.
