How many solar panels to recharge a station

• No invented refill times or “full by lunch” claims. OEM solar-charge hours are ideal / lab-adjacent. Field harvest is often closer to ~60–70% of STC nameplate after angle, heat, haze, and partial shade (planning estimate). Check current listing for kit prices and OEM solar-charge claims.
• Station Wh + continuous watts still decide the job. More panels do not start a fridge if the inverter is undersized — what size power station · peak vs continuous.
• Respect Voc / max solar input. Adding panels past the station’s max solar watts or Voc window can refuse charge or trip protection. Confirm on the OEM page — MPPT vs PWM · specs explained.
• “Solar generator” = station + panels. Definition: what “solar generator” means. Bundles QuietWatt already tables: solar bundles under ~$1,500.

Figures below are planning estimates / manufacturer claims from QuietWatt sibling citations (checked Oct 2026) — not QuietWatt lab tests. Not electrical or solar-install advice.

A useful order-of-magnitude for daily Wh into the battery (not a guarantee):

Daily Wh ≈ panel watts × peak sun-hours × derate × controller factor

• Panel watts — nameplate STC (e.g. 200 W foldable). Check current listing for the exact panel SKU.
• Peak sun-hours — location / season. Clear summer mid-latitudes often plan ~4–6; cloudy NZ winter or forest camping can be ~1–3 (planning bands, not measurements).
• Derate — QuietWatt’s planning habit is ~0.6–0.7 of nameplate outdoors (angle, heat, haze, cable loss). Do not plan at 1.0.
• Controller factor — modern station MPPT-class inputs QuietWatt tracks are usually “fine”; cheap external PWM can leave more harvest on the table when Vmp sits far above battery voltage — MPPT vs PWM.

Example (estimate only): one 200 W panel × 4 sun-hours × 0.65 derate ≈ ~520 Wh into the pack on a decent day — roughly half a ~1 kWh station after inverter / BMS overhead. Two clear days, or a second 200 W panel within the station’s max input, is the honest “full refill” story for many ~1 kWh kits — not one optimistic brochure hour.

• Station Wh class. A 512 Wh RIVER-class box and a ~2 kWh expand pack are different refill jobs. Size the station first — Wh class guide.
• Max solar input (W) and Voc. Jackery Explorer 1000 v2 kits QuietWatt cites often advertise ~400 W max; some EcoFlow DELTA kits cite higher dual-input ceilings. You cannot “stack forever” past the OEM limit.
• Sun-hours and weather. Rainy NZ, shade trees, and winter sun cut harvest hard. Campervan / NZ context: campervan / NZ. Balcony renters: balcony / no fumes.
• While loads run. Charging while the fridge or Starlink draws AC means net refill is slower — pass-through honesty: pass-through / UPS. Car idle / 12 V trickle is a different (slow) path: 12V car charging.