Solar Inverters: Guides, Comparisons & Sizing Tools
Choosing an inverter is the highest-leverage decision in a solar build — it sets your monitoring platform, your battery options, your shading tolerance, and a decade of service calls. This hub collects every inverter resource on PES Supply in one place: brand-vs-brand comparisons written for installers, sizing guides grounded in NEC rules, calculators for DC/AC ratio and capacity, and direct links into the live catalog. Start with a comparison if you're deciding between ecosystems, or jump to the sizing tools if the decision is made and you need numbers.
Head-to-Head Comparisons
The matchups installers actually ask about — spec-for-spec, no marketing fluff.
The defining MLPE debate — architecture, shading behavior, monitoring, and which fits which roof.
QS1/QT2 vs IQ8 — where the price gap is real and where the ecosystem premium pays off.
The honest decision guide: when panel-level electronics earn their cost and when a string box wins.
Which microinverter generation to buy in 2026 — output, pairing limits, and availability.
Which IQ8 variant for which module wattage — the per-job picker.
15K vs 18Kpv — the off-grid hybrid head-to-head for whole-home backup builds.
Where to move your installs if you're leaving the optimizer ecosystem.
Warranty paths, like-for-like swaps, and upgrade routes for aging IQ7 fleets.
Buying & Sizing Guides
Frameworks for choosing topology, sizing the inverter, and reading a datasheet.
Topology, efficiency, warranty, and grid features — how to choose the right inverter class.
A decision framework for matching inverter architecture to roof, budget, and utility rules.
Our ranked picks across residential, hybrid, and commercial classes.
DC/AC ratios, clipping trade-offs, and NEC sizing rules in one place.
Tools & Calculators
Run the numbers before you quote.
Match inverter capacity to your array size and target DC/AC ratio.
Find the right inverter for your system size, voltage, and phase.
Shop Inverters by Type & Brand
Live catalog — contractor pricing on volume orders.
The full inverter catalog — string, micro, hybrid, and off-grid.
Panel-level electronics from Enphase, APsystems, and Hoymiles.
Battery-ready all-in-ones for backup and off-grid systems.
Residential through utility-scale string and central units.
IQ8-series microinverters, IQ Batteries, gateways, and accessories.
HD-Wave and Home Hub inverters with power optimizers.
The 12K/15K hybrid line for serious off-grid and backup builds.
18Kpv, 12Kpv, and XP hybrids — the value-leader off-grid line.
QS1 and QT2 multi-module microinverters at aggressive pricing.
Latest Guides & Comparisons
Newest long-form articles in this topic, straight from the blog.
- Enphase Brand Guide: IQ7/IQ8, IQ Battery & Installer EcosystemAug 12, 2026
- Enphase vs Tigo 2026: Microinverters vs Selective MLPEAug 10, 2026
- Solar Inverter Clipping: Causes, Impact, and How to Avoid ItJul 31, 2026
- Hybrid vs Off-Grid Inverter: Choosing the Right SystemJul 31, 2026
- String Inverter Sizing: Match Inverters to Your ArrayJul 31, 2026
- Microinverters vs String Inverters: Which Is Better?Jul 31, 2026
- Hybrid Inverter Guide: How They Work, Sizing & Best ModelsJul 23, 2026
- EG4 Equipment Guide: 18kPV & XP Inverters, BatteriesJul 23, 2026
- Victron MultiPlus vs Sol-Ark 2026Jul 6, 2026
Buying for a project? Get contractor pricing.
Tell us what the job needs — panels, inverters, storage, wire, racking — and we'll price the whole BOM with bulk discounts and freight options.
Every link above is maintained by the PES Supply editorial team. Missing something? Ask us — sourcing questions are free.