Stepping up to a 12kW solar power system means serious capacity for a full household or a busy property. Sixteen options are in stock from $5,399, with BigBattery, Sungold Power, EG4, and Anker offerings, including the EG4 PowerPro 12kW 28.7kWh 48V backup system and Anker SOLIX F3800 PLUS bundles. They range from turnkey battery cabinets to portable-station-based kits. The main choice is how much stored energy you need versus how much power you draw at once, since those are separate numbers. Compare kWh and continuous watts side by side below, and ask us for sizing advice.
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A 12kw solar system is the size most full-size US homes need to run everything at once: central air, a well pump, an electric range and the usual lights and electronics. The 12kW figure refers to continuous inverter output at 120/240V split-phase. What sits behind that inverter varies: some packages here are inverter-plus-battery only, ready for panels you already own, and others include the full array, batteries, breakers and rapid shutdown.
This collection holds 20 products from EG4, BigBattery, Sungold Power and Anker, priced from about $5,300 for a two-station Anker SOLIX kit to about $16,700 for a Sungold hybrid kit with 48.21kWh of outdoor storage and 10,620W of panels.
| Product | Key numbers | Best for | Price from |
|---|---|---|---|
| 2x Anker SOLIX F3800 Smart Home Power Kit | 12,000W, 7,680Wh | Plug-in home backup, app control | $5,300 |
| EG4 12kW System with 48V 15.4kWh ETHOS Battery | 12,000W, 15,360Wh, 8,000 cycles | Tiny homes and cabins | $7,467 |
| EG4 PowerPro 12kW 28.7kWh | 12kW continuous, 28.6kWh, 2 batteries | Full-size off-grid home, bring your own panels | $8,685 |
| Sungold Power 12kW Off-Grid Kit, 30.72kWh, 16 x 590W | 12,000W, 30.72kWh, 9,440W PV | Complete off-grid build with RSD and breakers | $13,150 |
How many panels does a 12kW system need? The kits here include 12 to 20 panels of 415W to 590W each. Full 12kW of array is not required; the Sungold FR-12K20CP pairs a 12kW inverter with 7,200W of panels and 20.48kWh of battery.
Can I expand later? Yes on most. The EG4 PowerPro line moves from two to three batteries (28.6kWh to 42.9kWh), and the Anker F3800 Plus kits take solar input up to 3,200W.
Is a 12kw solar kit enough for a home with an EV? For overnight charging on a Level 2 charger, choose a system with 20kWh or more of storage or a hybrid that pulls from the grid at night.
Every system ships free to the mainland US from our brand partner warehouses, usually within a few business days, with 30-day returns. Call us with your utility bill in hand and we will match the inverter, battery and panel count to your house.
