EcoFlow Off-Grid & Whole-Home Power Solutions
EcoFlow delivers intelligent, scalable energy for every scenario: from full home backup to off-grid adventures. Modular batteries, high-wattage inverters, and rapid solar charging keep you powered through anything.
Whole-Home Backup
Run your entire home—including HVAC, appliances, and essentials—for days. Automatic grid-to-backup switchover in 20 ms with Smart Home Panel 2.
Off-Grid Living
Power cabins, RVs, or remote sites with multi-day autonomy. Expandable batteries and high solar input for true independence.
Rapid Charging & Multi-Source
Recharge via grid, solar (up to 5,600 W), or generator/EV. 8.8 kW MultiCharge fills 12 kWh in ~2 h. App control, IP54, and whisper-quiet operation.
DELTA Pro Ultra Power Station
Experience unmatched power capacity and versatility with the DELTA Pro Ultra.
EcoFlow Product Lineup
DELTA Pro Ultra
- 6,144 Wh battery, 7,200 W AC inverter
- Stackable to 90 kWh (15 units), 21.6 kW output
- Solar input: up to 5,600 W
- Smart Home Panel 2: 20 ms transfer, 12 circuits, app control
- 5-year warranty, CES 2024 Innovation Award
DELTA Pro 3
- 4,096 Wh battery, 4,000 W inverter (6,000 W X-Boost)
- Expandable to 12 kWh (per unit), up to 48 kWh system
- Solar input: up to 2,600 W
- IP65 battery, wheels for mobility, app monitoring
- 5-year warranty
DELTA Pro
- 3,600 Wh LFP battery, 4,500 W X-Boost
- Expandable to 10.8 kWh, 25 kWh system
- Solar input: up to 1,600 W
- Plug-and-play home backup, 5-year warranty
DELTA 2 Max
- 2,048 Wh LFP battery, 2,400 W inverter (3,400 W X-Boost)
- Expandable to 6,144 Wh (2 extra batteries)
- Solar input: up to 1,000 W
- Lightweight, portable, 5-year warranty
Smart Generator 4000
Dual-fuel (gas/LPG) generator designed for seamless integration with DELTA Pro systems. 3,200 W AC/DC output, 40% more fuel-efficient, app-enabled, and built for emergencies or remote power.
Four auto-start modes, real-time alerts, and up to 9.6 kWh per gallon. 3-year warranty.
Case Study: Off-Grid Home in South-West France
Project Overview
Complete off-grid solution for a home consuming 18,000 kWh annually (≈1,500 kWh monthly) in Morcenx, France.
Solar Conditions
- 3-5 peak-sun-hours daily
- 1,300 kWh/kWp annual yield
- Optimal for solar generation
System Requirements
- 15-16 kWp solar array
- Multi-day battery backup
- Winter backup solution
Solar Array Configuration
| Setup | Power | Panels | Area | Summer Output | Winter Output |
|---|---|---|---|---|---|
| Recommended | 16 kWp | 38 × 420W | 76 m² | 70-75 kWh/day | 30-35 kWh/day |
EcoFlow Hardware Solution
- 3× DELTA Pro Ultra inverters (handling 5.6 kW PV input each)
- 9× 6.1 kWh battery packs (≈54.9 kWh total capacity)
- Smart Home Panel 2 for seamless integration
- EcoFlow Smart Generator 4000 for winter backup
Investment Overview
Total system cost: ≈48,000€ (before incentives)
Net cost after 30% MaPrimeRenov' + VAT relief: ≈34,000€
Charging a Tesla Model 3 Performance at Night
How many solar panels to add 20% charge (60 → 80%) each night?
- Usable battery pack: 75 kWh
- 20% refill: 15 kWh
- + ≈10% AC-charging losses → 16.5 kWh needed from battery/PV
- Average PV yield near Bordeaux: 3.5 kWh kWp⁻¹ day⁻¹
- 400 W panel = 0.4 kWp → 1.4 kWh/panel/day (avg), 0.56 kWh/panel/day (mid-winter)
| Scenario | Energy Target | Panels (400 W) | Array Size (kWp) |
|---|---|---|---|
| Fair-weather (spring-autumn) | 16.5 kWh | 12 | 4.8 |
| Year-round (incl. December) | 16.5 kWh | 30 | 12 |
| Practical compromise (≈90% nights) | 16.5 kWh | 20 | 8 |
What this means in practice
- Battery buffer is mandatory: Your car charges after sunset, so the day's solar harvest must be stored first. One DELTA Pro Ultra inverter + three 6.1 kWh packs (18 kWh) matches the nightly need with headroom for cloudy days.
- Grid or generator as safety net: Even a 12 kWp array will have a few dark winter days; an EcoFlow Smart Generator or grid connection removes range anxiety.
- Roof area check: 400 W all-black modules are ~1.8 m² each:
- 12 panels → 22 m²
- 20 panels → 36 m²
- 30 panels → 54 m²
Heating Your Pool Year-Round with EcoFlow Solar
Sizing PV for the Pool-Heat-Pump Load
- Pool size: 12 m × 6 m
- Heat pump daily consumption: 25 kWh
- + ≈10% round-trip losses → 27.5 kWh required from PV
- Annual specific yield (Morcenx, SW-France): 1,200 kWh kWp⁻¹ yr⁻¹
- 400 W panel = 0.4 kWp → 1.3 kWh/panel/day (avg), 0.5 kWh/panel/day (mid-winter)
| Scenario | Energy Target | Panels (400 W) | PV Capacity (kWp) |
|---|---|---|---|
| Fair-weather (April–Oct) | 27.5 kWh | 22 | 8.8 |
| All-season (incl. December) | 27.5 kWh | 55 | 22 |
| Practical compromise (≈90% of pool-heating days) | 27.5 kWh | 35 | 14 |
What this means in practice
- Roof/ground area: 400 W all-black modules are ~1.8 m² each:
- 22 panels → 40 m²
- 35 panels → 63 m²
- 55 panels → 99 m²
- Battery buffer: The pool heater runs mostly when the sun is down, so store the harvest first. One DELTA Pro Ultra inverter + three 6.1 kWh packs (18 kWh) handles the nightly draw; add a fourth pack (24 kWh) for cloudy spells.
- Seasonality tip: If you shut the heater off November–February (common in SW France), the 22-panel array is plenty; any surplus sun then goes to household loads or into the Tesla.
Putting it all together
- If the pool is heated only in the swim season, an ~9 kWp (22-panel) array plus your existing battery stack will keep the water warm with near-zero grid input.
- If you insist on year-round 28 °C water, size up to 14–22 kWp (35–55 panels) or lean on the grid/generator during the darkest weeks.
- The array doubles as extra daytime cover for your household load and the Tesla—therefore the incremental panels tend to shorten overall payback rather than lengthen it.
⚡️ The Next Power Outage
They are becoming more common—recently in Spain, Portugal, France, and even Bali. Here are some practical tips from our own experience living through a multi-day outage in Portugal. You never know when it might hit, so a little preparation goes a long way!
Starlink
The biggest issue during the outage wasn't missing power (phones and laptops have batteries), but losing internet. 4G towers run out of backup power fast. We had Starlink, but nothing to power it—so make sure you have a way to keep your satellite internet running!
EcoFlow 1kWh Battery + 400W Solar Panel
Charge it when you have grid power, then use it to run essentials (phones, laptops, Starlink) during an outage. With a 400W solar panel, you can recharge even if the grid stays down.
Battery-Powered Radio (with USB-C)
Without internet, radio is your lifeline for news and emergency info. During the outage, local stations switched to emergency broadcasts. Keep a radio handy—ideally one you can charge with USB-C.
Gasoline-Powered Generator
Optional if you already have an EcoFlow, but for longer outages, a small generator (like the Denqbar DQ-2100) plus a 20L jerrycan of fuel can keep you going for days. Look for quiet models (55dB).
Gas Barbecue with Big Gas Tank
Most modern homes have electric stoves, so cooking is tough without power. A gas barbecue (with a side burner) lets you keep cooking.
20–40L of Drinkable Water
If the outage lasts, water pressure may drop. Have 20–40L of bottled water on hand. It's the first thing we bought when the power went out—you can last without food, but not without water!
Long-Term: Solar & Home Batteries
If you own your home, invest in solar and big batteries (like Tesla Powerwall or multiple EcoFlows). Two Powerwalls (27kWh) can keep you going for a week, especially if you have sun.
Anyway, hope this helps! I'm not a prepper, but I want to be ready for the next one 😊