You will see whether they are safe on this station and what they really deliver. Then add what you run.
DELTA 3 Plus: full specs and price history →
Judged against EcoFlow’s own limits for each input. Compare all 39 panels on this station →
4.5 hours of full sun — a typical spring / fall day. Choose your state for measured sun.
Not sure what you run? Describe your setup →
Choose any of 142 power stations and the builder lines each panel up against that station’s solar input — voltage, current, watts and plug. You get a plain verdict (Works, Works with some power unused, or Do not connect) and the wiring that gets the most out of it.
A 200 W panel rarely makes 200 W. The builder shows what actually reaches the battery in good sun, tells you when the station’s input is the bottleneck, and shows what each extra panel adds — so you can stop buying panels at the point they stop helping.
Switch on a fridge, a CPAP, a router — 93 appliances come with typical watts built in — and watch the battery hour by hour across two days. It tells you if your setup keeps up, when it would run out, and whether the fix is more panel or more battery.
Pick your state and month and the builder uses NASA’s 20-year sunshine record for all 50 states and DC instead of a guess. A year view shows which months your setup keeps up, and what it saves at your state’s electricity price.
Some stations can be joined with the maker’s own hub for more output and 240 V — enough for a well pump or a clothes dryer. The builder knows which 12 models pair up, what the hub costs, and the combined output the maker states.
For home batteries such as the EcoFlow DELTA Pro Ultra or Anker SOLIX E10, size a roof string for the high-voltage inputs, or enter the solar that is already on your house. It tells you what the maker says about charging from existing panels — including whether that keeps working in an outage.
And when you are happy with it: a printed parts list with today’s prices — station, panels, and any cable or hub the build needs — plus a link that reopens your exact setup, to save or to share.
Start building ↑Panels wired in a row (“in series”) add their voltages together. The builder adds them up for a cold morning — that is when panels run at their highest voltage — and makes sure the total stays inside what your station’s solar input accepts. Going over can damage the input for good, so this is the one check it never lets slide.
Every solar input has a watt limit and a current limit, and whichever bites first sets what you get. Many stations also hold the current back on low-voltage strings — which is why two panels in series so often beat the same two side by side. The builder tries the sensible wirings and shows you the winner.
Panel ratings are lab numbers. Outdoors, heat, the angle of the sun, wiring and dust each take a share, so the builder counts 72% of the label. It spreads that over a real day — sized to the hours of full sun for your state and month — and takes off the 15% an inverter loses on the way to your appliances.
We read the solar specs for 53 power stations and 29 panels in the makers’ manuals and product pages, and re-check the important ones by hand. If a maker does not publish a number, the builder tells you so rather than filling the gap. Appliance watts are typical figures — your own nameplate always wins.
Usually, yes — the brand does not have to match. What matters is voltage: the panel’s open-circuit voltage (the “Voc” on its label) has to stay under your power station’s solar input limit, and its plug, or an adapter, has to fit. Of the 12 folding 100–220 W panels we have on file, 11 put out about 20–25 V, which suits the solar input on nearly every station; the highest reaches 30 V. Of the 53 stations we have checked, 8 small ones stop at 28–30 V — which rules out wiring two panels in series on them. Pick your station in the builder and every one of the 39 panels gets a plain verdict.
As many as the station’s solar input allows — and it has three limits: volts, amps and watts. Panels wired in series add their voltages, and the total must stay under the input’s maximum (on an EcoFlow DELTA 3 Plus, two Rich Solar MEGA 200 Portable Briefcase Solar Panels in series reach about 49.1 V on a cold morning, under its 60 V limit; a third would push it to 73.6 V, which is too much). Panels wired in parallel add their current instead, and anything over the input’s amp limit simply goes unused. The builder shows the most each input will take and what every extra panel adds.
For most power stations, series — as long as the combined voltage stays under the input limit. Many stations hold back the current on low-voltage strings, and a higher-voltage string gets past that and loses less in the cable. A real example: on an Anker SOLIX C1000 Gen 2, two Rich Solar MEGA 200 Portable Briefcase Solar Panels deliver about 151 W wired in parallel and 288 W wired in series. Parallel is the right choice when one more panel in series would take the voltage over the limit. The builder tries both and tells you which wins on your station.
A full-size refrigerator draws around 150 W while its compressor runs, which is about 33% of the time — roughly 1.2 kWh a day. With 4.5 hours of full sun (a typical spring or fall day) that takes about 450 W of panels, plus a battery big enough to carry the night, around 0.7 kWh. In winter or under cloud you need more. Switch the fridge on in the builder, choose your state and month, and it shows hour by hour whether your setup keeps up.
Yes, just more slowly. In Washington, a panel tilted toward the sun gets about 1.8 hours of full sun on an average December day against 6.5 in July; in Arizona it is 4.9 against 6.7. On a heavily overcast day, plan on about one hour. The builder’s year dial shows all twelve months for your state, using NASA’s 20-year sunshine record, so you can see which months your setup keeps up and which it needs help.
Only with models whose maker sells a linking hub, and you get the output the maker states — not simply double. Two EcoFlow DELTA Pro 3 units give 8,000 W at 120/240 V through the EcoFlow 50 Amp Hub and two Anker SOLIX F3800 units give 12,000 W at 120/240 V through the Anker SOLIX Double Power Hub. Add a second station in the builder and, where the maker documents a pair, it offers to link them — after which 240 V appliances such as a well pump or a clothes dryer become available to run.
Sometimes — it is called AC coupling, and it depends on the model. The Anker SOLIX E10 is documented by the maker to keep working off-grid with a compatible solar inverter. For the Anker SOLIX F3800 PLUS and EcoFlow DELTA Pro Ultra, the makers say roof solar can charge the battery while the grid is up but stops when the grid fails — so in an outage only panels wired straight into the unit keep charging it. Enter your existing array in the builder and it applies what the maker says for your unit.