Which solar hybrid inverter gives the best value right now?
Of the hybrid solar inverter picks here, the FlexBOSS21 Hybrid Inverter ranks #1 of 7 on value, at 3.61 W/$ for $4,435.59 at A1 SolarStore. EG4 Electronics rates the FlexBOSS21 Hybrid Inverter for 16000 W of continuous AC output.
The 12kPV Hybrid Inverter comes in at #2 of 7, with 2.63 W/$ and a price of $3,036.50.
| Product | Best current price | Watts per dollar | Value rank |
|---|---|---|---|
| EG4 Electronics FlexBOSS21 Hybrid Inverter | $4,435.59 at A1 SolarStore | 3.61 W/$ | #1 of 7 |
| EG4 Electronics 12kPV Hybrid Inverter | $3,036.50 at A1 SolarStore | 2.63 W/$ | #2 of 7 |
| Sol-Ark Limitless 18K-2P-LV Hybrid Inverter | $6,999.32 at A1 SolarStore | 2.57 W/$ | #3 of 7 |
| EG4 Electronics 18kPV Hybrid Inverter | $4,747.52 at A1 SolarStore | 2.53 W/$ | #4 of 7 |
| Sol-Ark Limitless 15K-2P-N Hybrid Inverter | $6,099.15 at A1 SolarStore | 2.46 W/$ | #5 of 7 |
| MidNite Power MN15-12KW-AIO Hybrid Inverter/Charger | $5,650.23 at A1 SolarStore | 2.02 W/$ | #6 of 7 |
| Sol-Ark Limitless 12K-2P-N Hybrid Inverter | $4,699.50 at A1 SolarStore | 1.92 W/$ | #7 of 7 |
What can the FlexBOSS21 Hybrid Inverter run at once?
The FlexBOSS21 Hybrid Inverter is rated for 16000 W of continuous AC output, or 12000 W from the battery alone. Its surge rating is 24000 W, with a surge duration of 0.5 s. EG4 Electronics lists AC start capacity as 5 tons.
The listed maximum is 16 units in parallel. On the solar side, the max PV input voltage is 600 V and the recommended max PV array is 21000 W. Grid sell back is listed as yes.
It weighs 121 lb, so it sits in the heavy (over 50 lb) class. EG4 Electronics lists the enclosure rating as NEMA 4X.
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 does the 12kPV Hybrid Inverter cost up front?
The 12kPV Hybrid Inverter costs $3,036.50 at A1 SolarStore. EG4 Electronics rates it for 8000 W of continuous output and a surge rating of 16000 W. Its maximum solar input is listed at 12000 W.
The recommended PV array goes up to 15000 W. Its listed battery types are lead-acid or lithium, and generator input is listed as yes. CEC efficiency is listed at 96.4 %.
EG4 Electronics lists the certifications as UL1741, SA, SB, PCS CRD.
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 Limitless 18K-2P-LV Hybrid Inverter take?
Sol-Ark lists a max solar input of 28800 W for the Limitless 18K-2P-LV Hybrid Inverter. Its recommended PV array goes as high as 32400 W. Continuous output is rated at 18000 W.
The surge rating is 36000 W, and the surge duration is 10 s. The listed operating temperature runs from -40 C to 60 C. Sol-Ark rates the enclosure IP65 / NEMA 3R.
At $6,999.32 it ranks #3 of 7, with 2.57 W/$. It weighs 137 lb.
Strengths
- Large-load output: 2000 W or more of continuous AC output
Gaps
- Weight class: heavy (over 50 lb)
How long is the surge rating on the 18kPV Hybrid Inverter?
The 18kPV Hybrid Inverter lists a surge duration of 300 s, paired with a surge rating of 15500 W. EG4 Electronics rates its continuous AC output at 12000 W and its max solar input at 18000 W. It takes lead-acid or lithium batteries.
The max switchover time is 20 ms, which places it in the 20 ms or less group for UPS switchover speed. It stands 34.3 in high, with a width of 20.5 in and a depth of 11.2 in. It costs $4,747.52 at A1 SolarStore.
That price ranks #4 of 7 on value, at 2.53 W/$.
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 quickly does the Limitless 15K-2P-N Hybrid Inverter switch over in an outage?
Sol-Ark lists a max switchover time of 5 ms for the Limitless 15K-2P-N Hybrid Inverter. It is rated for 15000 W of continuous output, or 12000 W on battery alone. The maximum solar input is listed at 19500 W.
The listed battery type is lithium. Generator input and rapid shutdown are each listed as yes. At $6,099.15 at A1 SolarStore, it sits at #5 of 7 with 2.46 W/$, and it weighs 135 lb.
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 MPPT voltage range does the MN15-12KW-AIO Hybrid Inverter/Charger list?
The MN15-12KW-AIO Hybrid Inverter/Charger from MidNite Power lists an MPPT voltage range of 70 V to 550 V. Its depth is 9.52 in, its width is 16.54 in and its height is 37.4 in. MidNite Power rates it for 11400 W continuous, or 10000 W from the battery alone.
It works with lithium or lead-acid batteries. Grid sell back and generator input are both listed as yes, and the listed maximum is 9 units in parallel. It weighs 101.85 lb, and MidNite Power lists the enclosure rating as NEMA 3R.
At $5,650.23 at A1 SolarStore, it ranks #6 of 7 on value, at 2.02 W/$.
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 heavy is the Limitless 12K-2P-N Hybrid Inverter?
The Limitless 12K-2P-N Hybrid Inverter weighs 78 lb, according to Sol-Ark. That puts it in the heavy (over 50 lb) class. It measures 29.5 in tall, 17.7 in wide and 10 in deep.
Sol-Ark lists a max switchover time of 4 ms for this unit. It is rated for 9000 W of continuous output, and max solar input is 12000 W. Its listed battery type is lithium.
At $4,699.50, it ranks #7 of 7 on value, with 1.92 W/$.
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 should you check before buying a hybrid inverter for solar?
Check the continuous rating against the loads you want to keep running during an outage. Add up the loads that run together and compare that total with each unit's continuous rating, including battery-only where listed. If you plan to run a well pump or an air conditioner, compare the surge ratings where the maker lists them.
Next, check which battery types each unit lists before you buy a battery bank. Plan your array size against the recommended solar figures where listed, not just the panels you own today. If a brief gap in power would disrupt your work, compare switchover times where listed.
Measure the space where the unit will go, and compare it with the listed dimensions. Compare watts per dollar last, once a unit fits your loads, your batteries and your panels.