How we compared
Transparent ranking criterion. Each station is scored on its ability to power the critical trio of an electric van — air conditioning, refrigeration, induction — over 24h without a recharge, measured on the real build with a wattmeter. Price and weight break ties at equal performance. Prices and specs are taken from the manufacturers' own UK pages, checked in June 2026.
24h AC autonomyReal solar rechargeOnboard weightPrice / usable kWhField robustness
The measured comparison
| Product | Capacity | AC output | Max solar | Weight | Price | Source |
|---|---|---|---|---|---|---|
| EcoFlow DELTA Pro Ultra Field pick 6 kWh base, expandable · EcoFlow UK direct | 6 kWh | 7200 W | 5600 W | 85 kg (inverter + 1 battery) | £4,299 | verified · 06-26 |
| Anker SOLIX F3800 3.84 kWh · 230V 6 kW · via UK retailers | 3.84 kWh | 6000 W | 2400 W | 61 kg | £2,699 | verified · 06-26 |
| BLUETTI AC200L 2.05 kWh portable · Bluetti UK | 2.05 kWh | 2400 W | 1200 W | 28.3 kg | £899 | verified · 06-26 |
Verdict — lived experience “On a 100% electric build with no diesel, only the DELTA Pro Ultra holds AC + fridge + induction for a full day without battery anxiety — it is the core of the system, not an accessory, and it takes 5.6 kW of solar. The Anker F3800 is the sweet spot if you can drop to 24h with care; the Bluetti AC200L is the honest portable pick for a lighter, weekend build.”
The real cost of the stack
Power station (verified)
£4,299
EcoFlow DELTA Pro Ultra, 6 kWh base unit — price from EcoFlow UK, June 2026. This is the single most expensive line of the build.
Full 100% electric stack (approx.)
~£11,000
Field estimate: DELTA Pro Ultra + a second battery + ~1600 W solar + Wave 2 aircon. Zero fuel, zero engine-heater maintenance, total silence. Component prices verified; the total is an approximate build figure, not a quoted bundle.
ⓘ Affiliate disclosure. This page contains affiliate links (EcoFlow, Anker, Bluetti). We may earn a commission at no extra cost to you. The ranking and verdict do not depend on commissions — they come from field testing.