1
Voltage Gate
FAILDevice output type must match generator output.
240V required -> 120V available
No — voltage mismatch between the DELTA 3 Plus and a Well Pump
No - voltage mismatch. The Well Pump (1 HP) needs 240V output, but the generator provides 120V.
- • Voltage mismatch: device needs 240V, generator output is 120V.
Power Margin Analysis
1800W / 3600W Capacity Running 951W short
2751W required
Surge 4653W short
8253W required
Decision Gate Waterfall
Same decision gates as the engine: voltage, running, surge. Runtime is shown as operational context.
Blocking reason: voltage mismatch. Downstream gates are paused until voltage is compatible.
2
Running Gate
N/AContinuous draw with safety buffer applied.
Blocked by voltage mismatch.
3
Surge Gate
N/AStartup peak with safety buffer applied.
Blocked by voltage mismatch.
4
Runtime Insight
INFORuntime context only. It does not change the electrical compatibility verdict.
N/A due to voltage mismatch.
Power bars show required versus available output for each gate.
See generators that pass nativelyDecision Snapshot
Quick compatibility, required headroom, and model-specific context at a glance.
⚡
1800W
Running Power
🔋
1024Wh
Capacity
⏱️
—
Est. Runtime
☀️
1000W
Solar Input
Quick Compatibility Check
- 1 Voltage: needs 240V, generator outputs 120V.
- 2 Fix: only a generator with 240V split-phase output will work.
- 3 Wattage cannot solve a voltage mismatch.
What To Do Instead
- 1 Voltage mismatch: The Well Pump (1 HP) requires 240V output. The DELTA 3 Plus provides 120V only — no amount of extra wattage can fix this.
- 2 What you need: A power station or generator with 240V split-phase output and at least 2751W continuous / 8253W surge.
- 3 Compatible alternative: The Anker SOLIX F3800 (6000W continuous, 120V/240V) meets this device's voltage and wattage requirements.
Model-Specific Results
0 of 3 models are SAFE or TIGHT. Most demanding model: Red Lion RL12G10-2W2V (1 HP Deep Well Submersible) (7,176W surge).
| Model | Running | Surge | Verdict | Runtime | Source |
|---|---|---|---|---|---|
| Wayne SWS100 (1 HP Shallow Well Jet Pump) | 1,840W | 5,520W | Voltage Fail | — | NEC Standard |
Show expert analysisTechnical: **Running load:** 1840W using NEC full-load current for a 1 HP single-phase motor at 230V. **Startup surge:** 5520W estimated with a 3x motor inrush multiplier. **Voltage:** 240V required in normal US installation. Field note: Wayne publishes HP and voltage, but not FLA/LRA for SWS100. Sizing is intentionally conservative using NEC motor tables. Can a portable power station run the Wayne SWS100? Only if it provides 240V output and can handle about 1840W continuous plus a 5520W startup spike. | |||||
| Red Lion RL12G10-2W2V (1 HP Deep Well Submersible) | 2,392W | 7,176W | Voltage Fail | — | NEC Standard |
Show expert analysisTechnical: **Running load:** 2392W from OEM voltage/current data (230V × 10.4A). **Startup surge:** 7176W estimated at 3× running per NEC 430.248 due to high-inrush induction motor behavior. **Voltage:** 240V required. Field note: This is the battery-killer profile in the set: high running watts plus very high startup inrush. Why does this Red Lion model fail on many power stations? Because the startup surge is very high relative to consumer inverter surge limits, even when continuous watts look close. | |||||
| Grundfos 15SQ10-220 (SQ Series Soft Start) | 1,702W | 2,553W | Voltage Fail | — | Engineering Est. |
Show expert analysisTechnical: **Running load:** 1702W from OEM full-load amps. **Estimated startup surge:** 2553W using a 1.5x soft-start assumption. **Voltage:** 240V required. Field note: This is the generator-friendly profile in the set: still a 240V well-pump load, but with meaningfully lower startup demand. Is the Grundfos SQ easier on battery inverters than standard well pumps? Generally yes, because the SQ line uses soft-start behavior that lowers startup inrush compared with hard-start 1 HP pumps. | |||||
How This Pairing Performs Across Our Database
This unit is outside the compatible set; 4 of 33 generators pass SAFE/TIGHT for this device.
How Well Pump (1 HP) Performs Across 33 Tested Generators
4 of 33 generators are SAFE+TIGHT for Well Pump (1 HP).
4
Safe+Tight
Safe 3 (9%)
Tight 1 (3%)
Soft Start 1 (3%)
Voltage Fail 28 (85%)
Power Comparison: EcoFlow DELTA 3 Plus vs Top Alternatives for Well Pump (1 HP)
EcoFlow DELTA 3 Plus Voltage Fail
Current unit
Running 1,800W
Surge 3,600W
Fit class uses buffered needs (running and surge) for this device.
Specs & Surge Analysis
Home Infrastructure
Well Pump (1 HP)
Rural Water Supply
Select Your Model:
2392W
Running
7176W
Surge
240V
Required
True Surge™ Analysis
Safety Buffer: +15% Running Power Usage 153% Utilization
2751W required 1800W Capacity
951W short
Surge/Startup Peak 229% Utilization
8253W required 3600W Capacity
4653W short
Voltage Match 240V ↔ 120V ✕
Startup Surge Visual
Startup Surge
Well Pump (1 HP) vs DELTA 3 Plus
Startup surge exceeds the power station limit. A soft starter may resolve the surge gap.
⚠️
Before You Buy: Connection Check
High-voltage device
This device typically needs 240V split-phase or a hardwired connection. Most portable stations are 120V-only. Verify the plug type and voltage on the device label/manual before purchase.
Installation warning
These systems are often hardwired to a home panel. To run them from a portable station, you may need a transfer switch installed by an electrician. You cannot just plug it in.
Compatible Alternatives to DELTA 3 Plus
These generators meet Well Pump (1 HP)'s voltage, running, and surge requirements.
Best Value 
Anker SOLIX F3800
6000W • 3840Wh
Runtime at your load
~1.1h
Capacity Fit Fixed 3840Wh
Lowest capacity that still clears surge + running load.
Max Runtime 
Delta Pro Ultra X
12000W • 6144Wh
Runtime at your load
~1.8h
Longest Runtime Fixed 6144Wh
Highest available capacity for longer runtime.
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Generator Insights
The 3600W surge capacity can support typical residential motor startup scenarios including refrigerator compressors, well pumps, and power tools with inductive loads. The 1024Wh capacity sustains the 1800W continuous rating for approximately 34 minutes at full draw. This configuration can handle brief high-demand events common in backup power and job site applications.
LFP chemistry provides stable electrochemical performance under load cycling. The 3600W surge rating indicates transient overcurrent capability designed for inductive startup events. Source: EcoFlow DELTA 3 Plus User Manual v1.0 (Output Specs Section) (manufacturer documentation). Users must verify that connected equipment falls within these published limits.
Technical Analysis
Spec-Based • No GuaranteesTechnical Breakdown
Running range: 1702W to 2392W across common 1 HP well pump designs. Startup range: 2553W to 7176W depending on motor/start behavior. Voltage: 240V class load in typical US installations.
Expected Behavior
Typical duty cycle is about 2 hours/day, with short frequent cycles. Daily energy falls around 3404 to 4784Wh depending on the model.
Field Note
For well pumps, startup behavior matters more than nameplate HP. A soft-start design can change a borderline pairing into a stable one.
Frequently Asked Questions
Can the EcoFlow DELTA 3 Plus power a Well Pump?
No. The Well Pump (1 HP) requires 240V output, but the EcoFlow DELTA 3 Plus provides 120V only. No amount of extra wattage can fix a voltage mismatch — you need a power source with 240V split-phase output.
How long will the DELTA 3 Plus run a Well Pump?
No reliable runtime estimate — this pairing is not compatible. The EcoFlow DELTA 3 Plus cannot safely power the Well Pump (1 HP). See compatible alternatives above for power stations that meet this device's requirements.
Power Tip: To get the most out of your DELTA 3 Plus, keep it in a well-ventilated area. Extreme temperatures can slightly reduce the efficiency of the LFP/NMC cells.
Compare all 33 generators for the Well Pump (1 HP)
Ranked by budget, runtime, and overall compatibility.
Related Guides: How to Size a Power Station 120V vs 240V Explained What Are Surge Watts? Soft-Starters Guide
Technical Sourcing & Verification
ID: ecoflow-delta-3-plus-well-pump-1hp 🏛️ Device Data Source
Engineering Est. Safety Factor Applied
Derived from variant list (max of variants). Worst case = Red Lion RL12G10-2W2V (2392W running, 7176W surge).
⚡ Generator Specs Source
OEM Verified
EcoFlow DELTA 3 Plus User Manual
Methodology informed by US Department of Energy (DOE) & EIA references where applicable.
Our methodology →
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