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Solar Power Inverter for Home Picks Ranked by Watts per Dollar

Hybrid and off-grid inverters from EG4 Electronics and Sol-Ark, with store prices, output, surge and solar input for each.

Published October 14, 2026. Prices as of October 14, 2026; each product page shows today's prices.

Which solar inverter for home ranks first on value here?

Among these picks for a solar power inverter for home, the EG4 Electronics FlexBOSS21 Hybrid Inverter ranks #1 of 8 on value at A1 SolarStore prices, at 3.61 W/$. The EG4 Electronics FlexBOSS18 Hybrid Inverter comes next at #2 of 8 with 3.32 W/$. Third place goes to the Sol-Ark 5K-1P-N Hybrid Inverter, which sits at #3 of 8 and 3.20 W/$.

A value rank is a starting point, not the whole answer. Each inverter here was picked because its solar input is listed by the maker. Read the specs that fit your own panel, battery and loads before you choose.

At a glance
ProductBest current priceWatts per dollarValue rank
EG4 Electronics FlexBOSS21 Hybrid Inverter$4,435.59 at A1 SolarStore3.61 W/$#1 of 8
EG4 Electronics FlexBOSS18 Hybrid Inverter$3,919.55 at A1 SolarStore3.32 W/$#2 of 8
Sol-Ark 5K-1P-N Hybrid Inverter$1,499.92 at A1 SolarStore3.20 W/$#3 of 8
EG4 Electronics 6000XP Off-Grid Inverter$1,898.27 at A1 SolarStore3.16 W/$#4 of 8
Sol-Ark 30K-3P-208V Commercial Hybrid Inverter$10,899.33 at A1 SolarStore2.75 W/$#5 of 8
EG4 Electronics 12kPV Hybrid Inverter$3,036.50 at A1 SolarStore2.63 W/$#6 of 8
Sol-Ark Limitless 18K-2P-LV Hybrid Inverter$6,999.32 at A1 SolarStore2.57 W/$#7 of 8
EG4 Electronics 18kPV Hybrid Inverter$4,747.52 at A1 SolarStore--
  1. FlexBOSS21 Hybrid Inverter3.61 W/$
  2. FlexBOSS18 Hybrid Inverter3.32 W/$
  3. 5K-1P-N Hybrid Inverter3.20 W/$
  4. 6000XP Off-Grid Inverter3.16 W/$
  5. 30K-3P-208V Commercial Hybrid Inverter2.75 W/$
  6. 12kPV Hybrid Inverter2.63 W/$
  7. Limitless 18K-2P-LV Hybrid Inverter2.57 W/$
Watts per dollar at each product's best current price. A longer bar is better value.

What makes the FlexBOSS21 Hybrid Inverter the value leader?

The FlexBOSS21 Hybrid Inverter pairs 16000 W of continuous AC output with a price of $4,435.59 at A1 SolarStore, and it ranks #1 of 8 on value. On battery alone, EG4 Electronics rates it at 12000 W continuous. EG4 Electronics rates its surge at 24000 W for 0.5 s.

For solar, EG4 Electronics lists 3 MPPT trackers and a recommended maximum PV array of 21000 W. Grid sell-back and rapid shutdown both get a yes from EG4 Electronics. Grid sell-back is useful when your utility pays or credits you for power you send back.

EG4 Electronics lists the weight as 121 lb. That puts it in the heavy (over 50 lb) class. EG4 Electronics gives the enclosure a NEMA 4X rating, and the operating range runs from -25 C to 60 C.

  1. 6000XP Off-Grid Inverter52.9 lb
  2. 5K-1P-N Hybrid Inverter53 lb
  3. 12kPV Hybrid Inverter110 lb
  4. FlexBOSS18 Hybrid Inverter115 lb
  5. 18kPV Hybrid Inverter121 lb
  6. FlexBOSS21 Hybrid Inverter121 lb
  7. Limitless 18K-2P-LV Hybrid Inverter137 lb
  8. 30K-3P-208V Commercial Hybrid Inverter176 lb
Weight as the makers list it, lightest first. A shorter bar is lighter.

Strengths

  • Large-load output: 2000 W or more of continuous AC output
  • UPS switchover speed: 20 ms or less

Gaps

  • Weight class: heavy (over 50 lb)

How close does the FlexBOSS18 Hybrid Inverter come to the FlexBOSS21?

For the FlexBOSS18 Hybrid Inverter, EG4 Electronics gives 13000 W of continuous AC output, against 16000 W for the FlexBOSS21 Hybrid Inverter. It costs $3,919.55 at A1 SolarStore. EG4 Electronics lists 2 MPPT trackers on this one and battery charge current of up to 208 A.

Separate trackers help when panels face different ways or get shade at different times of day. EG4 Electronics lists a nominal battery voltage of 51.2 V and a CEC efficiency of 97 %. Its weight, as EG4 Electronics lists it, is 115 lb.

EG4 Electronics lists a UPS switchover of 20 ms at most.

Strengths

  • Large-load output: 2000 W or more of continuous AC output
  • UPS switchover speed: 20 ms or less

Gaps

  • Weight class: heavy (over 50 lb)

What do you get from the 5K-1P-N Hybrid Inverter?

Sol-Ark rates the 5K-1P-N Hybrid Inverter for 4800 W of continuous AC output at 120 V, single phase, and A1 SolarStore lists it at $1,499.92. Sol-Ark lists a UPS switchover of no more than 5 ms. Battery types listed as supported are lithium or lead-acid, at a nominal 48 V.

For generator input, the answer from Sol-Ark is yes. Sol-Ark gives an operating range down to -40 C and an IP65 / NEMA 3R enclosure. Sol-Ark puts its weight at 53 lb.

That places it in the heavy (over 50 lb) class.

Strengths

  • Large-load output: 2000 W or more of continuous AC output
  • UPS switchover speed: 20 ms or less

Gaps

  • Weight class: heavy (over 50 lb)

How long can the 6000XP Off-Grid Inverter hold a surge?

The 6000XP Off-Grid Inverter carries a 12000 W surge rating that lasts 3.5 s, according to EG4 Electronics. Motors such as well pumps pull a short burst at start, so check both the surge watts and how long the surge is rated to last. EG4 Electronics rates it for 6000 W of continuous AC output at 240 V.

A1 SolarStore lists it at $1,898.27, which works out to 3.16 W/$ and #4 of 8 on value. The maximum solar input is listed at 8000 W, and the recommended maximum PV array at 10000 W. For batteries, it lists lead-acid or lithium as supported at 48 V nominal, with charge current of up to 125 A.

The operating range EG4 Electronics lists runs from 0 C to 45 C, with an IP20 enclosure.

Strengths

  • Large-load output: 2000 W or more of continuous AC output
  • UPS switchover speed: 20 ms or less

Gaps

  • Weight class: heavy (over 50 lb)

Which phase and voltage does the 30K-3P-208V Commercial Hybrid Inverter use?

Sol-Ark lists 208 V three-phase output for the 30K-3P-208V Commercial Hybrid Inverter. Sol-Ark rates continuous output at 30000 W, and A1 SolarStore lists it at $10,899.33. That gives 2.75 W/$, ranked #5 of 8.

Sol-Ark lists a lithium-ion battery input from 160 V to 500 V, with 300 V nominal. Sol-Ark gives it 4 MPPT trackers and puts the recommended array at up to 39000 W. It weighs 176 lb, which puts it in the heavy (over 50 lb) class.

Strengths

  • Large-load output: 2000 W or more of continuous AC output
  • UPS switchover speed: 20 ms or less

Gaps

  • Weight class: heavy (over 50 lb)

How much solar can the 12kPV Hybrid Inverter take?

EG4 Electronics rates the 12kPV Hybrid Inverter for a maximum solar input of 12000 W and a recommended maximum PV array of 15000 W. The maximum PV input voltage is listed at 600 V, and the MPPT range runs from 120 V to 500 V. EG4 Electronics rates output at 8000 W continuous at 240 V, split phase.

A1 SolarStore lists it at $3,036.50, so it lands at 2.63 W/$ and #6 of 8. A higher PV voltage limit leaves room for longer strings of panels. EG4 Electronics lists these certifications: UL1741, SA, SB, PCS CRD.

EG4 Electronics gives 110 lb for weight, with a surge of 16000 W for 0.5 s.

Strengths

  • Large-load output: 2000 W or more of continuous AC output
  • UPS switchover speed: 20 ms or less

Gaps

  • Weight class: heavy (over 50 lb)

How much surge does the Limitless 18K-2P-LV Hybrid Inverter offer?

Sol-Ark rates the Limitless 18K-2P-LV Hybrid Inverter for a 36000 W surge that can last up to 10 s. Sol-Ark gives a continuous output of 18000 W and a maximum solar input of 28800 W. Sol-Ark lists a maximum battery charge current of 350 A and a maximum discharge current of 350 A, with a 48 V nominal battery.

It sells for $6,999.32 at A1 SolarStore, or 2.57 W/$, which places it #7 of 8 on value. Sol-Ark lists 3 MPPT trackers and a CEC efficiency of 97 %. The weight Sol-Ark gives is 137 lb.

Strengths

  • Large-load output: 2000 W or more of continuous AC output

Gaps

  • Weight class: heavy (over 50 lb)

What does the 18kPV Hybrid Inverter offer for solar input?

The EG4 Electronics 18kPV Hybrid Inverter takes a maximum solar input of 18000 W, with a recommended maximum array of 21000 W. EG4 Electronics lists a surge of 15500 W with a surge duration of 300 s. Continuous AC output is listed at 12000 W at 240 V.

The price at A1 SolarStore is $4,747.52. That price works out to 2.53 W/$. EG4 Electronics lists 3 MPPT trackers and a PV input of up to 600 V.

It lists lead-acid or lithium batteries as supported. EG4 Electronics gives this model a weight of 121 lb. That makes it another heavy (over 50 lb) unit.

Strengths

  • Large-load output: 2000 W or more of continuous AC output

Gaps

  • Weight class: heavy (over 50 lb)

How should you choose among these inverters?

Start with your main panel, and match the output voltage and phase to it before anything else. Then size continuous output to the loads you want to run at the same time. Make a list of the loads with motors, such as air conditioners and pumps, since those pull a burst of power when they start.

Check the battery voltage range so it fits the battery you plan to buy. Prices can change, so check the price on the day you buy.

Guides to help you choose

What size inverter do I need?Running and starting watts, headroom for heat, and the battery current it draws.Off-grid or hybrid inverter: which do you need?What each type does, and how to read output, surge, battery voltage and grid ratings.Pure sine wave vs modified sine waveHow the two waveforms differ, and which devices can have trouble on a modified sine wave.Solar panels in series or parallelWhich wiring suits your charger, your cable run and your roof.