Solar Generator 10,000 Watts: Loads, 240V Setup & Picks

Quick picks

First, separate watts from watt-hours

Watts measure power at a moment. Watt-hours measure stored energy over time. The two answer different questions:

• Output (W or kW) decides what can run at once. A 10,000 W inverter can carry 10,000 W of appliances simultaneously.
• Capacity (Wh or kWh) decides how long they run. Divide usable watt-hours by the load.

A system can have high output and a small battery, or a big battery behind a modest inverter. Listings that say "10,000 watts" sometimes mean continuous output, sometimes peak or "lifting" output, sometimes battery capacity, and sometimes the maximum of a product family with several units linked together. Read each number separately.

Runtime formula

Hours ≈ battery Wh × 0.9 ÷ load watts. The 0.9 is an assumed ~90% inverter efficiency. It's a planning estimate, not a test result, and real runtime also depends on depth of discharge, temperature and how the load cycles. Our runtime calculator does the same math for any battery size.

240V loads: why 10 kW systems are split-phase

Most US homes get 120/240V split-phase power. Lights and plugs run on 120V. Central AC, many well pumps, electric ranges, dryers, water heaters and Level 2 EV chargers run on 240V. A big 120V-only power station can't run them, however many watts it lists.

Large systems handle this in two ways:

• One unit with native 240V. The Apex 300 has a NEMA 14-50R outlet that delivers 120/240V from a single unit, but the whole unit is still limited to 3,840 W.
• Several units through a parallel box. The Hub A1 combines two or three Apex 300 units into one 120/240V output (NEMA L14-30R 30A and NEMA 14-50R 50A outlets). That's how the system climbs to 7,680 W or 11,520 W.

To power home circuits rather than single appliances, the output has to go through approved transfer equipment: an inlet and transfer switch, an interlock, a sub panel or a smart panel installed by a licensed electrician. Never backfeed a panel through a wall outlet. It can energize utility lines and endanger line workers. Bluetti sells its own panel options (the AT1 Smart Distribution Panel and an Apex 300 Home Integration Kit with a 50A inlet sub panel). Any transfer switch or interlock your electrician approves for the inlet rating does the same job.

What can a 10,000W solar generator run?

The figures below are typical, approximate values for common US appliances, rounded. Your own appliance's nameplate is the better number. Runtimes assume about 90% inverter efficiency (9,000 / 18,000 / 27,000 usable Wh) with each load running on its own.

Dryer, water heater and sump pump figures follow Honda's generator wattage guide (dryer 5,400 W running / 6,750 W starting, water heater 4,500 W, 1/2 HP sump pump 1,050 / 2,150 W). Others are typical rounded ranges, not measurements of a specific model.

Two things jump out of that table:

1. 10 kW of output is plenty; 10 kWh of storage is not. A dryer, a water heater and central AC running together can use most of a 10 kW inverter, and they would drain a 10 kWh battery in well under two hours.
2. The EV charger alone would take the whole output of a two-unit system. Charging a car from a battery bank works, but it's an expensive way to move a few kilowatt-hours. Treat it as an occasional load.

An example whole-home outage load

Say you want central AC (~3,500 W), a well pump (~1,200 W), a fridge (~200 W) and lights, internet and a TV (~500 W) at the same time. That's about 5,400 W running, which fits a 7,680 W two-unit system. The tight spot is starting: if the AC compressor and the well pump kick on together, the combined spike can exceed what you'd expect from the running total. A third unit (11,520 W) gives real headroom, and an HVAC soft starter on the AC is worth asking about.

For a full house, the bigger issue is energy. The U.S. EIA puts the average US home at 10,791 kWh a year, about 30 kWh a day. An 11 kWh battery covers a third of that, so whole-home backup usually means shedding the big resistive loads (dryer, range, water heater) during outages or adding batteries and solar. To total up your own list, use the wattage calculator.

How to build ~10 kW: parallel units on a Hub A1

Here's how the currently sold Bluetti route stacks up, using figures from Bluetti's US product pages and the Hub A1 user manual (read October 31, 2026):

How the parallel setup works:

• Each Apex 300 is a full inverter plus battery. The Hub A1 combines their outputs into one 120/240V feed. Two units give 7,680 W and three give 11,520 W. Bluetti doesn't list a fourth-unit option.
• Batteries stack behind each unit. Each Apex 300 takes up to six B300K packs (2,764.8 Wh each). Spread them evenly across units so one doesn't run flat first.
• The hub also charges. Its rated input is 6 kW at 120V or 12 kW at 240V.
• Cables. The Hub A1 is sold with two or three parallel cables. If you're going to three units, confirm you have the third cable. The bundle listing doesn't state its cable count, so check before you order.
• Surge vs "lifting" power. Bluetti lists 7,680 W "Lifting Power" for a single Apex 300. That's a lifting figure, not a separate motor-surge rating we could verify, so size motor starts conservatively against the continuous 3,840 W per unit. (For two units on the hub, 7,680 W is the continuous rating.)
• Home connection. Run the hub's 50A output to an inlet and transfer switch or a smart panel. That's electrician work.

Other Apex 300 specs from Bluetti's page: LiFePO₄ cells rated for 6,000+ cycles to 80%, a 0/20 ms UPS switchover, a 12 kW pass-through bypass, a 5-year warranty and 83.78 lb per unit. Plan the floor space and weight. Three units plus batteries is a garage or utility-room installation, not something you carry around.

Solar input sizing

A 10 kW system needs a lot of solar to refill it in a day:

• Apex 300 direct: up to 2,400 W per unit through two 1,200 W XT60 inputs at 12–60V. Two units take 4,800 W and three take 7,200 W.
• SolarX 4K add-on: a high-voltage charge controller (150–500V) that adds up to 4,000 W, for up to 6,400 W per Apex 300. Bluetti says it needs at least one B300K attached, and a single Apex without a battery tops out at 3,200 W with it.
• B300K packs also have their own 600 W solar input (13–50V).

Rough planning math: a 4,800 W array that delivers ~75% of its rating for 4 peak sun hours makes about 14 kWh in a day. That's enough to refill the 11 kWh bundle in good weather, but not a 30 kWh bank. These are planning estimates. Panel output varies with season, tilt, shade and heat. Bluetti's own figure is that an Apex 300 plus a B300K and a SolarX 4K on 4 kW of solar fills in about 1.9 hours. For wiring the array, see solar panels in series or parallel. Use outdoor-rated MC4 extension cables sized for the run.

AC charging is faster. Bluetti lists 80% in 45 minutes in the Apex 300's Turbo mode (3,840 W).

Best 10,000 watt solar generator picks

All specs come from Bluetti's official US pages, read on October 31, 2026. They are manufacturer specs, not our test results.

Bluetti 2x Apex 300 + 2x B300K + Hub A1: best for whole-home backup

This is the most complete large-system package Bluetti currently sells. You get 7,680 W of 120/240V output through the Hub A1's NEMA 14-50R (50A) and L14-30R (30A) outlets and 11,059.2 Wh of LiFePO₄ storage, and it expands to 38,707.2 Wh with more B300K packs. On its own it's a 7.7 kW system, which covers the example whole-home load above. To cross 10 kW, add a third Apex 300 to the hub for 11,520 W.

Choose it if: you want 240V whole-home or multi-circuit backup with central AC or a well pump, and you're willing to have an electrician install the transfer equipment.

Watch out for: it's on pre-order (see below), and two units don't reach 10 kW by themselves.

Bluetti Apex 300: best for an off-grid cabin or a start-small build

A single Apex 300 gives 3,840 W and 2,764.8 Wh, with 120/240V from one NEMA 14-50R outlet. That covers a well pump or a 240V mini-split at a cabin without a hub. It grows to 19,353.6 Wh with six B300K packs, takes 2,400 W of solar directly (up to 6,400 W with a SolarX 4K and a B300K), and it's the unit you'd add later to reach 7,680 W or 11,520 W on a Hub A1.

Choose it if: you need 240V for one or two big loads, or you want to buy one unit now and grow toward 10 kW later.

Watch out for: 3,840 W is shared across the whole unit, so it won't run central AC and a dryer at the same time.

Availability and discontinued models

Pre-order status. As of Oct 31, 2026, the Apex 300 and the bundles built on it were available for pre-order, with shipping expected around Nov 20, according to Bluetti's US product page. Pre-order dates can slip. If you're preparing for hurricane or winter-storm season, don't count on equipment you haven't received and tested, and check the current shipping date before you order.

Models you'll still see recommended elsewhere, but can't buy new from Bluetti's US store:

• AC500: every variant shows as unavailable or out of stock, and the AC500 + B300K variants are marked discontinued.
• AC300: discontinued.
• AC200L: discontinued. It was a 2 kWh, 120V-only station and was never a 10 kW path.
• EP800 and EP900: not sold online. Bluetti lists them as installer or contact-us systems.
• EP760: no longer listed on the US store.

The AC300/AC500 Fusion Box is still listed, but it's only useful if you already own those units, and per Bluetti it tops out at 6,000 W (2x AC300) or 7,200 W (2x AC500). Bluetti's installed EnergyPro 13K home battery was listed but out of stock on October 31, 2026. The Elite 400 (2,600 W, 120V) is a large portable station, not a 10 kW system.

How we chose

• Sold now (or on pre-order) in the US. We dropped anything discontinued or unavailable on Bluetti's US store as of October 31, 2026.
• A real path to 240V and toward 10 kW. Both picks deliver 120/240V and are building blocks of the 11,520 W three-unit setup.
• Complete official specs. Every number on this page comes from Bluetti's US product pages or the Hub A1 manual, or from the appliance sources noted.
• What we didn't do. We haven't bench-tested these systems, and we don't publish prices or ratings. Other brands' paralleled systems can also work. Compare continuous output, 240V capability, Wh and solar input the same way.

Solar vs gas for 10 kW

A gas or dual-fuel generator in the 10 kW class costs less up front for the same output and runs as long as you have fuel. A 10 kW battery system is silent, has no exhaust, can sit in a garage or utility room, recharges from solar and switches over in milliseconds. The trade-off is that its runtime is capped by watt-hours. Many whole-home owners pair the two. See solar generator vs gas generator for noise, runtime and safety.

Smaller systems may be enough

If your list doesn't include 240V appliances or central air, you're probably overbuying:

• Solar generator 5,000 watts: outage essentials plus one big load.
• 3000 watt solar generator for home: fridge, sump pump, furnace fan and electronics.
• Portable power station 2000W: single 120V appliances and short outages.
• Load-specific guides: air conditioner and sump pump.
• Building your own instead? Read the DIY solar generator for home safety guide first.

FAQ

Sources

• Bluetti US, Apex 300 product page, spec table and FAQ (3,840 W; 7,680 W "Lifting Power"; 2,764.8 Wh LiFePO₄; NEMA 14-50R 120/240V 50A; 19,353.6 Wh with 6x B300K; solar 2,400 W, 12–60V; SolarX 4K up to 6,400 W; Turbo AC charging 80% in 45 min; 6,000+ cycles; 12 kW bypass; 0/20 ms UPS; 83.78 lb; "ships from November 20th").
• Bluetti US, 2x Apex 300 + 2x B300K + Hub A1 bundle (7,680 W; 11,059.2 Wh; 38,707.2 Wh max).
• Bluetti US, Hub A1 Parallel Box page and user manual (120/240V; NEMA L14-30R and 14-50R; 2 units 7,680 W, 3 units 11,520 W; input 6 kW at 120V / 12 kW at 240V).
• Bluetti US, B300K (2,764.8 Wh; 600 W solar input) and SolarX 4K (150–500V, +4,000 W).
• Bluetti US, AC500, AC300, AC200L, EP800 and EP900 pages (availability status checked October 31, 2026).
• U.S. Energy Information Administration, How much electricity does an American home use? (10,791 kWh per year in 2022).
• Honda Power Equipment, generator wattage guide (dryer, water heater and sump pump figures).
• Other appliance wattages are typical, rounded values, not measurements of specific products.