System Components

The Hardware Behind Every High-Performance Solar Build

A solar energy system is only as reliable as its weakest component. This collection covers the balance-of-system hardware that connects, converts, protects, and monitors your installation — inverters, charge controllers, transfer switches, mounting hardware, wiring, and monitoring equipment from SunGoldPower, Growatt, Sol-Ark, MidNite Solar, Jackery, and Nature's Generator.

What You'll Find Here

Inverters & Inverter-Chargers

Pure sine wave inverter-chargers convert stored DC battery power to clean AC for sensitive electronics and appliances, while simultaneously handling AC battery charging. Solar charger inverters combine MPPT charge control and load output in a single unit. Hybrid solar inverters connect to the grid, battery storage, and solar simultaneously — maximizing self-consumption while providing seamless backup switching. Available from 3kW single-phase up to 20kW split-phase 120/240V configurations. All SunGoldPower hybrid models are UL1741 listed. Sol-Ark and Growatt inverters carry UL certification for U.S. grid interconnection.

MPPT Solar Charge Controllers

Maximum Power Point Tracking (MPPT) controllers regulate energy flow from solar panels to battery banks, maintaining optimal charge efficiency across changing light conditions. Standalone controllers are appropriate for off-grid systems where a separate inverter is already in place. Available in 60A and 100A ratings. The MidNite Solar Classic 150 and Classic 250 are among the highest-performing standalone MPPT controllers available for residential off-grid systems.

Transfer Switches

Automatic transfer switches (ATS) detect grid failure and route critical circuits to backup power without manual intervention — typically within 30 milliseconds. Available in 30A, 50A, and 125A ratings from Nature's Generator for portable and whole-home backup systems. Manual transfer switches (30A and 50A, 4- to 12-circuit configurations) provide a lower-cost option for planned switching between grid and generator power. The Jackery Smart Transfer Switch pairs specifically with the Explorer 5000 Plus for automatic circuit-level coverage without a dedicated electrician's panel work.

Mounting Hardware & Racking

Rail-less rooftop mounting systems from Sunmodo NanoRack — compatible with standard 60- and 72-cell panel formats on asphalt shingle and metal roof surfaces. Ground-mount frames from IntegraRack in 15°, 30°, and 45° tilt configurations for fixed and adjustable installations. The Nature's Generator Universal Solar Panel Mount rounds out semi-portable panel positioning for generator-paired setups.

Wiring, Cables & Connectors

Pre-terminated battery-to-inverter cables in 4/0 AWG and 1/0 AWG, 10 AWG copper PV wire, MC4-compatible connectors and crimping tools, and Jackery DC extension, car charging, and Anderson connector cables. Correct wire sizing and connector quality directly affect system efficiency and safety — undersized wiring generates resistive heat under load and degrades both output and component longevity.

Battery Racks, Cabinets & Monitoring

5-layer battery racks and enclosed server-rack cabinets for organized, ventilated lithium battery installations. Wi-Fi monitoring modules for SunGoldPower inverters, Tigo rapid shutdown and power optimization units, Growatt smart meters, and MidNite Solar communications modules and combiners for full system-level monitoring and rapid shutdown compliance.

Compatibility Comes First

Inverters, batteries, and controllers must be matched by voltage class (12V, 24V, or 48V), current rating, and communication protocol. If you are building a system from individual components rather than a complete kit, our energy team can verify compatibility before you order — saving you a return shipment and a project delay. Call 1-(210) 900-2018 or browse our matched-kit bundles in the Energy Storage collection.