The EcoFlow DELTA 2 (1800W continuous / 2700W surge) cannot power this 1/2 HP Deep Well Submersible Pump. It requires 3200W starting surge, which will immediately trip the inverter.
Typical start-up surge of 3,200 W exceeds the EcoFlow DELTA 2's 2,700 W surge rating.
shallow water table with low head pressure demand (850 W run, 2,500 W surge)
standard 100-ft deep residential well cycling on 30/50 PSI pressure switch (1,050 W run, 3,200 W surge)
deep drawdown or continuous tank refill against high head pressure (1,250 W run, 3,800 W surge)
EcoFlow DELTA 2 cannot clear this load's startup surge or continuous draw. The lowest-cost compatible station is:
Inverter cutoff triggered
Tripped / No Load
Provides 2× CEE 7/3 (230V) (120V 60Hz).
Pure sine wave inverter output. Safe for sensitive medical electronics and variable-speed motors.
Inductive motor/compressor load with 3× starting surge (motor inrush) (-18.5% worst-case surge margin).
Wall AC fast charge at up to 1200W (50m to 80%, 80m to 100%).
Physical trip confirmation: The 1/2 HP Deep Well Submersible Pump's initial motor startup spike (3200W LRA) breaches the EcoFlow DELTA 2's 2-second surge envelope (2700W). The inverter's overcurrent protection circuit triggers within 20–50 ms to prevent MOSFET destruction.
Probably not. Starting the 1/2 HP well pump takes a surge of about 3,200 W, more than the EcoFlow DELTA 2's 2,700 W surge rating, so its overload protection is likely to cut out at start-up. In its lightest-use case (shallow water table with low head pressure demand (850 W run, 2,500 W surge)) it would run for about 26 hours.
Probably not. The 1/2 HP well pump needs a start-up peak of about 3,200 W, above the EcoFlow DELTA 2's 2,700 W surge rating.
On wall power: about 50 minutes to 80% and 80 minutes to full (EcoFlow figures). With its maximum 500 W of solar input connected, expect about 400 W in full sun, so a full recharge takes roughly 2.7 hours of full sun, so it can refill in a single day with 4 peak sun hours.
If you need an alternative to the EcoFlow DELTA 2 that can run a 1/2 HP well pump at typical draw, options in our database include (cheapest first): Pecron E1500LFP ($699, about 16.2 hours); Westinghouse iGen5000DF ($949, about 34 hours); Champion 4500W Dual Fuel Inverter (201319) ($999, about 26 hours).
Statutory 30-day retail price announcements & rate revisions
Bord Gáis Energy winter rate adjustment: +1.60c/kWh Day, +0.90c/kWh Boost (2am–5am), and +€12.50/yr standing charge effective 20 Nov 2026.
Energia retail revision: +1.85c/kWh Day, +1.15c/kWh EV Boost (2am–6am), and +€14.20/yr standing charge effective 15 Nov 2026.
Dual Fuel Day Night: Day -4.64c/kWh, Night -3.25c/kWh (effective 2026-11-05)
Electricity Day Night: Day -4.64c/kWh, Night -3.25c/kWh (effective 2026-11-05)
SSE Airtricity statutory price cut: -1.25c/kWh Day, -0.65c/kWh Night, and -€8.40/yr standing charge effective 01 Oct 2026.
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