solarexperts

Off-grid inverters under 6kW

For cabins, workshops, sheds and van builds, where a 12kW whole-home unit is overkill and its idle consumption is a real cost. These still bundle an MPPT controller and charger, just at a scale that suits a small system.

$0.11

best $/W today

$0.16

median of 23

5

vendors compared

ManufacturerAll
VendorAll
ConditionNew

19 of 23 products · sorted by$/W · click any column header to re-sort

Product$/W ▲PriceQtyCont. WOutputMax PVMPPTBest vendorCheckedLinks
5000W 48V Solar Charger Inverter - SPH504880A [80A MPPT] / Only Inverter
$0.12$589.0015000three-phase--1SunGoldPower1d
LiTime 48V 5kW Split Phase All-In-One Solar Inverter Charger
$0.14$699.9915000120/240-split--1LiTime1d
ECO-WORTHY 3500W Solar Off-grid AIO Inverter, 48Vdc to 120Vac, 4400W@150V PV Input
$0.14$499.9913500120v--1Eco-Worthy1d
3000W 24V Solar Inverter Charger - SPH302460A [PV30-108V / MPPT30-90V] / Only Inverter
$0.15$445.0013000120v--1SunGoldPower1d
5000W 48V Solar Charger Inverter - SPH5048P [Parallel, 100A MPPT] / Only Inverter
$0.15$750.0015000three-phase--1SunGoldPower1d
Growatt 5kW Stackable Off-Grid Inverter SPF 5000US UL 1741
$0.15$750.0015000240v-split--1Signature Solar1d
3000W 24V Solar Inverter Charger - SPH302480A [PV120-450V / MPPT120-400V] / Only Inverter
$0.15$459.0013000120v--1SunGoldPower1d
ECO-WORTHY 5000W Solar Off-grid AIO Inverter, 48Vdc to 120Vac, 5500W@500V PV Input, UL1741
$0.16$799.9915000120/240-split--1Eco-Worthy1d
3500W 48V Pure Sine Wave Solar Inverter Charger - Only Inverter
$0.17$599.9913500120v--1Renogy1d
ECO-WORTHY 1100W Off Grid Pure Sine Wave Inverter 12V to 110V
$0.17$189.9911100120v--1Eco-Worthy1d
Growatt 3kW Stackable Off-Grid Inverter SPF 3000TL LVM-ES
$0.22$649.0013000120v--1Signature Solar1d
3500W 48V Solar Inverter Charger - Only Inverter
$0.22$769.9913500120v--1Renogy1d
Growatt 3kW Stackable Off-Grid Inverter SPF 3000TL LVM-48P (WIFI-F)
$0.24$714.0013000120v--1Signature Solar1d
Growatt 3kW Stackable Off-Grid Inverter SPF 3000TL LVM-24P
$0.26$785.0013000120v--1Signature Solar1d
5000W 48V Solar Charger Inverter - SPH504880A [80A MPPT] / SG48100P [5.12kwh, UL1973 UL9540A]
$0.30$1,499.0015000three-phase--1SunGoldPower1d
5000W 48V Solar Charger Inverter - SPH5048P [Parallel, 100A MPPT] / SG48100P [5.12kwh, UL1973 UL9540A]
$0.30$1,519.0015000three-phase--1SunGoldPower1d
Tigo 3.8kW Energy Storage Hybrid Inverter
$0.40$1,516.1513800120v--2Signature Solar1d
3000W 24V Solar Inverter Charger - SPH302460A [PV30-108V / MPPT30-90V] / 2 X LFP24-100A [5.12kwh]
$0.54$1,605.0013000120v--1SunGoldPower1d
3000W 24V Solar Inverter Charger - SPH302480A [PV120-450V / MPPT120-400V] / 2 X LFP24-100A [5.12kwh]
$0.54$1,619.0013000120v--1SunGoldPower1d

What to watch out for

Surge rating matters more than continuous rating at this size. A well pump or compressor can draw several times its running wattage for a second or two, and a 3kW inverter with a weak surge will trip on a load a 3kW inverter with a strong one carries easily.

This is a filtered view of ourfull all-in-one & off-grid inverters table, which carries every option we track with the same filters available directly. Prices come from each vendor's own listing and are re-collected daily.

Related:All-in-one hybrid inverters, 6kW and up