Solar Panels

Solar panels at PES Supply: Tier 1 monocrystalline, bifacial, and N-type TOPCon modules from Silfab, Canadian Solar, JA Solar, REC, Trina, LONGi, Mission Solar, and Qcells — residential and commercial PV modules from 300W to 700W+ with 25-year power output warranties.

Whether you're pricing a single replacement panel, a 20-panel residential array, or a multi-pallet commercial job, start with wattage class: 300-399W for budget and off-grid, 400-459W for residential rooftops, 460-549W for premium residential and light commercial, and 550W+ for ground mounts and commercial builds. Pallet and truckload pricing available on every line.

Frequently Asked Questions

{"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What wattage solar panel should I buy?", "acceptedAnswer": {"@type": "Answer", "text": "Match wattage class to the project. Budget builds, RVs, and off-grid: 300-399W. Standard residential rooftops: 400-459W (the industry sweet spot). Premium residential and small commercial: 460-549W. Ground mounts and commercial roofs: 550-709W. The right answer maximizes watts per square foot of usable mounting area, not watts per panel."}}, {"@type": "Question", "name": "Monocrystalline, bifacial, TOPCon — what's the difference?", "acceptedAnswer": {"@type": "Answer", "text": "Monocrystalline PERC is today's value standard at ~21% efficiency. TOPCon N-type adds efficiency and degrades more slowly (about 0.4%/year vs 0.55%). Bifacial glass-glass modules harvest reflected light on the rear side for 5-15% extra yield on ground mounts — but gain almost nothing on a flush rooftop. Buy TOPCon for the warranty curve, bifacial for ground mounts, PERC for the price."}}, {"@type": "Question", "name": "How do solar panels ship?", "acceptedAnswer": {"@type": "Answer", "text": "Single panels and small lots ship by the most economical carrier for their size; pallet quantities (typically 31-36 panels) ship LTL freight with curbside delivery. Panels are glass — we palletize and corner-protect every shipment, and we recommend inspecting at delivery and noting any damage on the freight receipt before signing."}}, {"@type": "Question", "name": "What warranty do solar panels carry?", "acceptedAnswer": {"@type": "Answer", "text": "Two warranties matter: product (defects) and performance (output). Product warranties run 12-25 years depending on brand — Silfab and REC sit at the long end. Performance warranties are linear 25-30 year guarantees, typically promising 84-87% of rated output at the end of term on N-type modules."}}, {"@type": "Question", "name": "Do I need permits or utility approval to install panels?", "acceptedAnswer": {"@type": "Answer", "text": "Grid-tied systems require a building/electrical permit from your AHJ and an interconnection agreement with your utility before energizing — plan on both. Off-grid systems generally skip the utility but still need electrical permits in most jurisdictions. Panels themselves carry the UL 61730 listing inspectors look for."}}, {"@type": "Question", "name": "Is pallet pricing worth it if I don't need 30+ panels?", "acceptedAnswer": {"@type": "Answer", "text": "Usually, yes — pallet per-panel pricing plus one freight charge often beats small-quantity pricing plus parcel shipping, and spare panels are cheap insurance against breakage or future expansion. Contractors buying for multiple jobs should ask about multi-pallet and truckload quotes."}}]}