The EcoFlow RIVER 2 Pro (800W continuous / 1600W surge) cannot power this 1/2 HP Sump Pump. It requires 2300W starting surge, which will immediately trip the inverter.
Typical running draw of 1,050 W exceeds the EcoFlow RIVER 2 Pro's 800 W continuous rating.
light rain: 4 cycles/h × 18 s at 800 W (16 W avg)
active storm: 15 cycles/h × 36 s at 1,050 W (158 W avg)
severe flooding: 24 cycles/h × 45 s at 1,150 W (345 W avg)
EcoFlow RIVER 2 Pro cannot clear this load's startup surge or continuous draw. The lowest-cost compatible station is:
Inverter cutoff triggered
Tripped / No Load
Provides 4× BS 1363 (230V) (120V 60Hz).
Pure sine wave inverter output. Safe for all standard household appliances.
Inductive motor/compressor load with 2.2× starting surge (motor inrush) (-43.7% worst-case surge margin).
Wall AC fast charge at up to 940W (55m to 80%, 70m to 100%).
Physical trip confirmation: The 1/2 HP Sump Pump's initial motor startup spike (2300W LRA) breaches the EcoFlow RIVER 2 Pro's 2-second surge envelope (1600W). The inverter's overcurrent protection circuit triggers within 20–50 ms to prevent MOSFET destruction.
It can't. The 1/2 HP sump draws about 1,050 W while running, more than the EcoFlow RIVER 2 Pro's 800 W continuous rating.
On wall power: about 55 minutes to 80% and 70 minutes to full (EcoFlow figures). With its maximum 220 W of solar input connected, expect about 176 W in full sun, so a full recharge takes roughly 4.6 hours of full sun, about 1.2 days at 4 peak sun hours a day.
If you need an alternative to the EcoFlow RIVER 2 Pro that can run a 1/2 HP sump at typical draw, options in our database include (cheapest first): Bluetti AC180 ($499, about 5.9 hours); Jackery Explorer 1000 v2 ($499, about 5.4 hours); Anker SOLIX C1000 ($600, about 5.4 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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