Full Off Grid Solar Power Systems

Off Grid Solar Power Systems: Complete Kits for Cabins, Homesteads and Backup

Off grid solar power systems in this collection bundle the three things a home needs to run without a utility line: an inverter that makes 120V or 120/240V household power, a lithium battery bank that carries you through the night, and enough solar panels to refill that bank the next day. Buying them as a matched kit removes the usual headache of checking that the inverter's charge voltage, the battery's communication protocol and the panel string voltage all agree.

The collection holds 135 systems from Sungold Power, EG4, BigBattery and Anker, priced from $2,920 for a 5.12kWh battery-and-inverter pair to $15,725 for a 16,000W, 25.6kWh system with 32 panels. Some kits ship with panels; others are battery-plus-inverter cores you pair with the array you already own or plan to buy.

Buying guide: not sure which size fits your home? Our best off-grid solar kits guide compares seven in-stock kits by home size, with the battery, array and inverter sizing math.

How to choose an off grid solar kit

• Inverter continuous watts. Add up what runs at once. A cabin with a fridge, well pump, microwave and lights lands around 3,000 to 5,000W; a full house with an electric range or a mini-split climbs past 6,000W. The Sungold Power 5,000W SGM-5K5E covers the first case at $3,145; the Sungold Power 8,000W SGR-8K10E covers the second.
• 120V or 120/240V. Well pumps, dryers and central AC are 240V. The SGM series is 120V only; the SGR-6510E, SGR-8K10E and SGR-16K25E are split-phase 120/240V.
• Battery kWh for the night. Usable storage should cover evening through sunrise plus a cloudy day. 5.12kWh suits a weekend cabin; 10.24kWh suits a lived-in home; 14 to 25kWh suits a homestead with a freezer and a well. The NEXUS 14.3kWh + EG4 6000XP pairs 14.3kWh with a 6,000W inverter for $4,544.
• Panel wattage. The SGR-8K10E carries a 3.32kW array of eight 415W panels, which refills its 10.24kWh bank on a good day in most of the US. Kits without panels, such as the HUSKY 2 10.24kWh + Victron MultiPlus-II 5000, let you size the array to your roof.
• Room to grow. The 16,000W system is two 8,000W inverters in parallel; the EG4 and Victron cores accept more batteries later.

Popular picks in this collection

Sizing tips

• Start with the Solar Kit Calculator. Enter each appliance and your ZIP code and it estimates battery, inverter and panel size from your local sun hours, which is the number that changes most between Arizona and Maine.
• Winter decides the array. A 3.32kW array that is generous in July may cover half the load in December; plan panels for your worst month or budget for a generator input.
• Count surge, not just running watts. A well pump can draw three times its nameplate on start; the 6,500W and 8,000W Sungold Power inverters give you that margin.
• Check the label on the battery kWh. The EG4 314Ah systems list 16kWh nominal and 12.86kWh recommended usable; size on the usable figure.
• Panels ship on pallets and the batteries are heavy; make sure a truck can reach your site and someone is there to receive the freight.

Frequently asked questions

Is a full off grid solar system enough to drop the utility entirely? Yes, if the inverter, battery and array are all sized for your worst season. Most homeowners keep a small generator for long cloudy stretches; the Victron inverter/chargers in the HUSKY 2 kits accept an AC input for that.

Can I install off grid solar systems myself? Many buyers do the racking and panel wiring, then hire an electrician for the inverter-to-panel connection. Local code often requires a permit for the AC side, so check before ordering.

What if I already have panels? Pick a battery-and-inverter core such as the HUSKY 2 and Victron kits or the EG4 6000XP systems and confirm your string voltage matches the inverter's MPPT range.

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 load list and we will help you settle on the right off grid solar power kit.