EG4 18kPV 48V Split-Phase Hybrid All-in-One Inverter
A 12,000 W, 48 V all-in-one hybrid inverter with 120/240 V split phase from one unit, three MPPT inputs, a 200 A grid bypass, a fully off-grid mode and a 10-year warranty.
$4,000
We may earn a commission if you buy through this link. It never affects our scores. How this works
Usability
7.3 out of 10It suits a buyer who wants 12,000 W of split-phase power and a 200 A grid bypass from one off-grid inverter, and who will not need a quiet unit in living space or a short surge rating above 13,500 W. $3,999.99 at signaturesolar.com.
Strengths
- 12,000 W at 120/240 V from battery alone
- Three MPPTs21,000 W PV, 600 V input
- 200 A grid bypass and 90 A generator input
- Up to 10 units in parallel for 120 kW
- Wi-Fi dongle and EG4 app included
Drawbacks
- 68 dB at 3 ft typical noise
- Peak without PV 13.5 kW for 10 min1.1x
- No AC charger current published
- Page says IP65spec sheet gives NEMA 4X only
- Pays for export and zero-export it will not use off grid
Specs
- CapacityNot applicable
- AC Output6,000 W or more
- System Voltage48 V
- Panel PowerNot applicable
- Safety ListingCSA 107.1 listed, UL 1741 listed
- Cell TypeNot applicable
- Low-Temp ChargingNot applicable
- Warranty10 Years
- MonitoringWired display or port only
- Weight121.0 lb
Not published by EG4: charge current.
At a glance
- 34.3 x 20.5 x 11.2 in case
- 180 A locked rotor rating
- Two CTs in the box
- Touchscreen LCD display
EG4 is the brand of EG4 Electronics LLC of Sulphur Springs, Texas, part of Energy Access Innovations with its sister company Signature Solar.
It sells with a cart through Signature Solar at signaturesolar.com and through approved distributors and dealers such as Current Connected, Shop Solar and BigBattery, while eg4electronics.com has no cart.
The EG4 18kPV, model 18KPV-12LV (also labeled IV-12000-HYB-AW, followed by 00-99), is a 48 V all-in-one hybrid inverter charger that EG4's manual says can fully function in off-grid only mode, with no utility or generator: 12,000 W rated backup output at 240 V (10,400 W at 208 V), 120/240 V split phase from one unit with up to 8,000 W per 120 V line, and a peak of 13,500 W for 10 minutes without PV, or 14,700 W for 10 minutes and 15,500 W for 5 minutes with PV, with a 180 A locked-rotor rating. EG4 rates battery-to-AC efficiency at 94%, idle consumption at about 70 W in normal mode and about 18 W in standby, and switching at 10 ms on backup (20 ms default and 10 ms configurable on the grid side, 20 ms in parallel). Solar input is three MPPT trackers (25 A, 15 A and 15 A usable), 100-600 VDC input range, a 140-500 V MPPT range, 18,000 W utilized and 21,000 W recommended. AC input is 12,000 W (50 A at 240 V) with a 200 A grid bypass and a 90 A generator bypass, and the battery side is 48 V (40-60 V) lithium or lead-acid at up to 250 A charge or discharge, with CAN and RS485 closed-loop communication with EG4 and other listed batteries. Up to 10 units run in parallel (120 kW). The grid-tie functions, export to grid, zero export, peak shaving and AC coupling, earn nothing for an off-grid buyer. It measures 34.3 x 20.5 x 11.2 in (870 x 520 x 285 mm), weighs 121 lb (55 kg), has a NEMA 4X outdoor rating (the store page also says IP65), runs from -13 to 140 F and is rated 68 dB at 3 ft. In the box: the inverter, mounting bracket, two 1 in CTs, the Wi-Fi dongle, battery and parallel communication cables, keys, expansion bolts and the manual. The 10-year warranty must be registered within the first year, or the buyer must show proof of purchase from an EG4 authorized distributor, to remain valid. EG4 sells through its sister company Signature Solar.
