Solar Power: Panels, Kits, Sizing Guides & Top Brands

Everything PES Supply has published on solar power, organized by intent. Start with the sizing guides — how many panels your kWh usage actually requires, what a 25 kW array looks like on a roof, and what a 3,000-watt system can really run. Then dig into the architecture decisions: microinverters vs DC optimizers, string vs hybrid inverters, and premium panel shootouts like REC vs Qcells. Our brand guides carry dealer-level specs on the modules, inverters, and racking we stock, and the shop links jump straight to live inventory at wholesale pricing. Whether you are a contractor building a BOM or a homeowner checking a quote's math, this page is the fastest route to the right guide.

Start here

Solar Panels for 1500 kWh/Month: Complete Sizing Guide →

The most-visited solar guide on the site — turn a utility bill into a panel count, array square footage, and equipment shortlist using real sun-hour data.

Sizing Guides

From monthly kWh to panel count, roof area, and realistic output — the math before the quote.

Comparisons

Architecture and brand shootouts — the decisions that change the quote.

Brand Guides

Dealer-spec guides to the panel, inverter, and racking lines we stock — cell technology, datasheets, and spec-for-spec positioning.

  • REC Group — Alpha Pure-RX HJT modules — premium residential with top-tier degradation rates.
  • Jinko Solar — Tiger Neo TOPCon modules — the volume leader's residential and commercial lines.
  • Trina Solar — Vertex series with 210mm cells — high-wattage modules for every segment.
  • Canadian Solar — HiKu and HiHero TOPCon — installer-friendly specs across residential and C&I.
  • LONGi Solar — Hi-MO series with back-contact cell technology — efficiency leaders.
  • JA Solar — DeepBlue TOPCon series — value-tier pricing with Tier-1 bankability.
  • Silfab Solar — Premium North American-made mono PERC modules.
  • Mission Solar — Made-in-USA modules — BABA-compliant options for federal projects.
  • SolarEdge — Power optimizers and HD-Wave inverters — the DC-optimized architecture.
  • Sol-Ark — Hybrid and off-grid inverters — the contractor favorite for battery-ready systems.
  • SMA — Sunny Boy and Tripower — German-engineered string inverters.
  • Sungrow — Residential through utility-scale inverters from the global shipment leader.
  • Fronius — GEN24 Plus hybrid and SnapInverter lines — Austrian build quality.
  • GoodWe — Hybrid inverters, ESA all-in-one, and SEMS monitoring.
  • Hoymiles — Microinverter specialist — module-level power electronics at sharp pricing.
  • IronRidge Racking — XR rails and FlashFoot2 — the racking standard for pitched roofs.
  • Unirac Racking — SolarMount and FlashLoc — UL 3741-compliant racking systems.
  • SnapNrack — Ultra Rail and TopSpeed — installer-driven racking design.
  • Quick Mount PV — QBase flashing systems — waterproof roof attachments done right.

Shop Solar

Panels, kits, and inverters in stock — residential through commercial, wholesale pricing with freight nationwide.

Why contractors source from PES Supply. We are a wholesale supplier, not a content farm — every guide on this page exists because we sell and support the equipment it covers. That means real model numbers, real warranty terms, and honest limitations instead of affiliate-listicle rankings. Order through any collection link and you get contractor pricing, consolidated freight on multi-pallet orders, and a support line staffed by people who can read a spec sheet.

Get a wholesale quote. Quoting a residential or commercial array? Send us the utility bill or load profile — we'll spec panels, inverter architecture, and racking as a complete BOM at wholesale. Request a quote →

Portlandia Electric Supply stocks generators, solar, battery storage, EV charging, and electrical supplies at wholesale — browse all collections or explore our other hubs: Generators · Solar · Battery Storage · EV Charging · Electrical.