Pumps & Water Systems · Load hub
Which Power Stations Can Run a Standard 40-Gal Electric Tank Water Heater?
All 30 portable power stations, home batteries and hybrid inverters in the GridSpec database, ranked by compatibility and runtime for the Standard 40-Gal Electric Tank Water Heater.
Electrical profile
- Running power
- 4,500 W
- Starting surge
- 4,500 W (1.0×)
- US/NA voltage
- 240 V
- UK/EU/AU voltage
- 230 V
- US connection
- Hardwired 240V / NEMA 14-30P
- UK/EU/AU connection
- Hardwired via DP isolator · IEC 60309 32A
- NEC breaker
- 25 A
- IEC MCB
- 20 A
Sizing summary
The Standard 40-Gal Electric Tank Water Heater draws 4,500 W while running and 4,500 W at start-up — a surge ratio of 1.0×, meaning it behaves as a steady resistive or electronic load. In North America it is a 240 V load, so only split-phase-capable units qualify: 18 otherwise-capable 120 V units are excluded on voltage alone.
10 of 30 sources pass every check in North America and 16 of 35 pass in 230 V markets. The leanest fully compatible choice is the Anker SOLIX F3800 , while the EG4 18kPV Hybrid Inverter + PowerPro 14.3kWh WallMount delivers the longest runtime (9.0 hrs at 30% duty) .
Every power source ranked for the Standard 40-Gal Electric Tank Water Heater
| Power source | Capacity / output | US/NA verdict | UK/EU/AU verdict | Load | Runtime @ 30% | |
|---|---|---|---|---|---|---|
| EG4 18kPV Hybrid Inverter + PowerPro 14.3kWh WallMount | 14,336 Wh / 12,000 W | Verified Compatible | Verified Compatible | 38% | 9.0 hrs | Full report → |
| Tesla Powerwall 3 | 13,500 Wh / 11,500 W | Verified Compatible | Verified Compatible | 39% | 8.5 hrs | Full report → |
| EG4 6000XP Off-Grid Inverter + 10.2kWh Server Rack | 10,240 Wh / 6,000 W | Verified Compatible | Verified Compatible | 75% | 6.4 hrs | Full report → |
| Selectronic SP Pro AU Off-Grid Inverter UK / EU / AU only | 10,240 Wh / 7,500 W | Not sold | Verified Compatible | 60% | 6.4 hrs | Full report → |
| Enphase IQ Battery 5P (Dual 10kWh Bank) | 10,000 Wh / 7,680 W | Verified Compatible | Verified Compatible | 59% | 6.3 hrs | Full report → |
| Bluetti EP800 + 2x B500 Home System | 9,920 Wh / 7,600 W | Verified Compatible | Verified Compatible | 59% | 6.2 hrs | Full report → |
| Sungrow SH10RS Hybrid Inverter + Battery UK / EU / AU only | 9,600 Wh / 10,000 W | Not sold | Verified Compatible | 45% | 6.0 hrs | Full report → |
| Sigenergy SigenStor 5-in-1 System UK / EU / AU only | 8,000 Wh / 8,000 W | Not sold | Verified Compatible | 56% | 5.0 hrs | Full report → |
| EcoFlow Delta Pro Ultra (1 Inverter + 1 Battery) | 6,144 Wh / 7,200 W | Verified Compatible | Verified Compatible | 63% | 3.9 hrs | Full report → |
| Jackery Explorer 5000 Plus | 5,040 Wh / 7,200 W | Verified Compatible | Verified Compatible | 63% | 3.2 hrs | Full report → |
| Anker SOLIX F3800 | 3,840 Wh / 6,000 W | Verified Compatible | Verified Compatible | 75% | 2.4 hrs | Full report → |
| Anker SOLIX F3800 Plus | 3,840 Wh / 6,000 W | Verified Compatible | Verified Compatible | 75% | 2.4 hrs | Full report → |
| Fox ESS EP5 Modular Hybrid UK / EU / AU only | 5,180 Wh / 5,000 W | Not sold | Compatible · High Load | 90% | 3.3 hrs | Full report → |
| Oukitel BP5000 Pro Max | 5,120 Wh / 5,000 W | Compatible · High Load | Compatible · High Load | 90% | 3.2 hrs | Full report → |
| myenergi Libbi (5kW Inverter + 5kWh Battery) UK / EU / AU only | 5,120 Wh / 5,000 W | Not sold | Compatible · High Load | 90% | 3.2 hrs | Full report → |
| Victron MultiPlus-II 48/5000 + 10kWh LiFePO4 Bank | 10,240 Wh / 4,000 W | 240V Split-Phase Required | Continuous Overload | 113% | — | Full report → |
| Goal Zero Yeti PRO 4000 | 3,993 Wh / 3,600 W | 240V Split-Phase Required | Continuous Overload | 125% | — | Full report → |
| Fossibot F3600 Pro | 3,840 Wh / 3,600 W | 240V Split-Phase Required | Continuous Overload | 125% | — | Full report → |
| EcoFlow Delta Pro (Gen 1) | 3,600 Wh / 3,600 W | 240V Split-Phase Required | Continuous Overload | 125% | — | Full report → |
| Mango Power E (3.5kWh LFP) | 3,530 Wh / 3,000 W | 240V Split-Phase Required | Continuous Overload | 150% | — | Full report → |
| Bluetti AC500 + B300S | 3,072 Wh / 5,000 W | 240V Split-Phase Required | Compatible · High Load | 90% | — | Full report → |
| Pecron E3600LFP | 3,072 Wh / 3,600 W | 240V Split-Phase Required | Continuous Overload | 125% | — | Full report → |
| Jackery Explorer 3000 Pro | 3,024 Wh / 3,000 W | 240V Split-Phase Required | Continuous Overload | 150% | — | Full report → |
| Bluetti AC300 + B300K | 2,764 Wh / 3,000 W | 240V Split-Phase Required | Continuous Overload | 150% | — | Full report → |
| Anker SOLIX F2600 | 2,560 Wh / 2,400 W | 240V Split-Phase Required | Continuous Overload | 188% | — | Full report → |
| EcoFlow Delta 2 Max | 2,048 Wh / 2,400 W | 240V Split-Phase Required | Continuous Overload | 188% | — | Full report → |
| Anker SOLIX F2000 (PowerHouse 767) | 2,048 Wh / 2,400 W | 240V Split-Phase Required | Continuous Overload | 188% | — | Full report → |
| Bluetti AC200L | 2,048 Wh / 2,400 W | 240V Split-Phase Required | Continuous Overload | 188% | — | Full report → |
| Jackery Explorer 2000 Plus | 2,042 Wh / 3,000 W | 240V Split-Phase Required | Continuous Overload | 150% | — | Full report → |
| Bluetti AC240 (IP65 Weatherproof) | 1,536 Wh / 2,400 W | 240V Split-Phase Required | Continuous Overload | 188% | — | Full report → |
| Jackery Explorer 1000 v2 | 1,070 Wh / 1,500 W | 240V Split-Phase Required | Continuous Overload | 300% | — | Full report → |
| Anker SOLIX C1000 | 1,056 Wh / 1,800 W | 240V Split-Phase Required | Continuous Overload | 250% | — | Full report → |
| EcoFlow Delta 3 Plus | 1,024 Wh / 1,800 W | 240V Split-Phase Required | Continuous Overload | 250% | — | Full report → |
| Zendure SuperBase V6400 | 6,438 Wh / 3,800 W | Continuous Overload | Continuous Overload | 118% | — | Full report → |
| EcoFlow Delta Pro 3 | 4,096 Wh / 4,000 W | Continuous Overload | Continuous Overload | 113% | — | Full report → |
Frequently asked questions
What size power station do I need for a Standard 40-Gal Electric Tank Water Heater?
You need at least 4,500 W of continuous inverter output, 4,500 W of surge capacity and 120/240 V split-phase output in North America. 10 of the 30 power sources we track meet all three requirements; the leanest is the Anker SOLIX F3800.
Which power station runs a Standard 40-Gal Electric Tank Water Heater the longest?
The EG4 18kPV Hybrid Inverter + PowerPro 14.3kWh WallMount offers the longest runtime among compatible units: about 9.0 hrs at a 30% duty cycle thanks to its 14,336 Wh battery.
What breaker does a Standard 40-Gal Electric Tank Water Heater need?
In North America: 18.8 A at 240 V × 1.25 = 23.4 A, so a 25 A breaker. In the UK, EU and Australia: 19.6 A at 230 V on a 20 A MCB with RCD protection.