1
Voltage Gate
PASSDevice output type must match generator output.
240V required -> 120V/240V available
Yes, the Delta Pro Ultra can run a Well Pump
Yes - Delta Pro Ultra has enough running and surge power for the Well Pump (1 HP). Target ~2751W running / 8253W surge; the generator provides 6000W / 12000W.
Power Margin Analysis
6000W / 12000W Capacity Running 3249W headroom
2751W required
Surge 3747W headroom
8253W required
Decision Gate Waterfall
Same decision gates as the engine: voltage, running, surge. Runtime is shown as operational context.
2
Running Gate
PASSContinuous draw with safety buffer applied.
2,751W required -> 6,000W available (3,249W headroom)
Required 2,751W required
Available 6,000W
3
Surge Gate
PASSStartup peak with safety buffer applied.
8,253W required -> 12,000W available (3,747W headroom)
Required 8,253W required
Available 12,000W
3b
With Soft-Start
PASSAlternative startup path with reduced inrush.
3,714W required -> 12,000W available (8,286W headroom)
Required 3,714W
Available 12,000W
4
Runtime Insight
INFORuntime context only. It does not change the electrical compatibility verdict.
Continuous estimate: 1.8h
Device profile reference: up to 2h per day.
Power bars show required versus available output for each gate.
View full compatibility reportDecision Snapshot
Quick compatibility, required headroom, and model-specific context at a glance.
⚡
6000W
Running Power
🔋
6144Wh
Capacity
⏱️
~1.8h
Est. Runtime
☀️
5600W
Solar Input
Quick Compatibility Check
- 1 Running headroom: target 2751W; generator provides 6000W.
- 2 Surge headroom: target 8253W; generator provides 12000W.
- 3 Tip: leave headroom for startup spikes and warm conditions.
Model-Specific Results
3 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 | Safe | ~2.3h | 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 | Safe | ~1.8h | 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 | Safe | ~2.5h | 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 ranks #3 of 4 compatible generators for this device by buffered margin (Overkill class).
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 Pro Ultra vs Top Alternatives for Well Pump (1 HP)
EcoFlow Delta Pro Ultra Safe Overkill
Current unit
Running 6,000W
Surge 12,000W
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 46% Utilization
2751W required 6000W Capacity
3249W headroom
Surge/Startup Peak 69% Utilization
8253W required 12000W Capacity
3747W headroom
Voltage Match 240V ↔ 120V/240V ✓
⚠️
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.
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Generator Insights
With 12000 watts of surge capacity, this system can handle typical startup loads for central air compressors, well pumps, and other motor-driven equipment common in residential settings. The 6000-watt continuous rating supports sustained operation of multiple high-draw appliances simultaneously. The 6144 Wh capacity provides meaningful runtime for essential circuits during grid outages.
This unit uses lithium iron phosphate (LFP) chemistry, known for stable thermal behavior in stationary storage applications. The system is designed with internal protections typical of grid-tied and off-grid battery platforms. Source: EcoFlow DELTA Pro Ultra User Manual (manufacturer documentation).
Extend Runtime with Solar
Keep your Well Pump (1 HP) running with solar • MPPT: 80– 450V • Max: 5600W
Official EcoFlow
400W Panel
1 Hour Sun =
+0.1h per sun hour
Plug & Play
Full in ~21.9h 
Smart Value Anker
400W Panel
1 Hour Sun =
+0.1h per sun hour
Plug & Play
Full in ~21.9h 
Smart Value Bluetti
350W Panel
1 Hour Sun =
+0.1h per sun hour
Plug & Play
Full in ~25.1h 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
Estimated runtime: ~1.8h. 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 Pro Ultra power a Well Pump?
Yes. The EcoFlow Delta Pro Ultra provides 6000W running / 12000W surge. The Well Pump (1 HP) needs 2751W / 8253W (including 15% buffer). That leaves 3249W of running headroom and 3747W of surge margin.
How long will the Delta Pro Ultra run a Well Pump?
Approximately 1.8 hours, based on the Well Pump (1 HP)'s 2392W draw and the Delta Pro Ultra's 6144Wh capacity (70% usable after real-world losses).
What Else Can You Run?
With 1965W allocated to the Well Pump (1 HP), the Delta Pro Ultra still has ~443W of margin. These devices could run simultaneously:
🌀
Box Fan (Medium)
60W
💡
LED Lamp
10W
🔥
Space Heater (Eco)
750W
📺
55' LED TV
80W
💻
MacBook Air/Pro
65W
🥪
Microwave (Running)
1000W
Power Tip: To get the most out of your Delta Pro Ultra, 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-pro-ultra-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 Pro Ultra User Manual
Methodology informed by US Department of Energy (DOE) & EIA references where applicable.
Our methodology →
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