Charge the station from the sun
Add panels — we will work out how much sun a full charge takes and whether generation covers your daily use. Add panels — we will work out charging time and energy balance.
An estimate: panel yield for Kyiv is 4.5 hours of full sun a day in summer (with a margin) and 1 hour in winter, panel losses included; charging and inverter efficiency 85%; panels give no more than the solar input of the station accepts. Appliance hours are typical, the fridge counts only compressor time (~35%); half of the daily use is taken as night use, which the station has to cover. Real generation depends on cloud cover, the angle and how clean the panels are.
The EcoFlow 2x100W Rigid Solar Panel is a set of two 100 W rigid solar panels for permanent installation on the roof of a house, country house, garage, camper or canopy. Together they give 200 W of rated power. The panels have a rigid frame and an all-black design that blends in on a dark roof. If you have decided to buy EcoFlow 2x100W Rigid Solar Panel, this set works with EcoFlow power stations, Power Kits and third-party 12/24 V systems.
Mounting feet are included, so the panels can be fixed to a roof or a frame at the right angle straight away.
Why the rigid 100W
23% efficiency
Both panels are made of monocrystalline cells with 23% conversion efficiency. For a fixed panel that is a good level: on the same day it produces more energy from the same roof area.
IP68 and weather resistance
EcoFlow designs the panel for year-round outdoor use. The IP68 rating under IEC 60529 protects against dust and water, and according to EcoFlow the construction withstands winds of up to 130 mph (about 209 km/h), low-pressure water jets and heavy snowfall.
Simple installation
Mounting feet are included, and the frame has holes for fixing. The panels go on a pitched or flat roof, on a wall or on a separate stand.
Dimensions and weight
Each panel measures 980 x 586 x 30 mm and weighs about 6.2 kg. Together the two panels take up just over 1.1 m² and weigh about 12.4 kg.
Connecting to a power station
Each panel has a universal solar connector compatible with MC4. A Solar-XT60i cable is not included; an EcoFlow station needs a separate MC4 – XT60i cable, 2.5 m. It is usually a long way from the roof to the station, so an MC4 extension cable, 3 m comes in handy.
One panel has an open-circuit voltage of 20.3 V and a short-circuit current of 6.3 A. Two panels in series give up to 40.6 V at the same current. Hence the compatibility:
- DELTA 2, DELTA 2 Max, DELTA 3, DELTA 3 Plus and DELTA 3 Max Plus – both panels in series, the full 200 W.
- RIVER 3 Plus, RIVER 2 Pro and RIVER 2 Max – both panels in series; the 11-50/55 V input accepts 40.6 V.
- RIVER 2, RIVER 3, RIVER 3 UPS, TRAIL 300 DC – the input accepts up to 30 V, so the panels are connected in parallel through an MC4 branch connector, or only one is used. The station still draws up to 110 W.
- DELTA Pro and DELTA Pro 3 – more sets can be added in series within their input range.
How much energy the set gives
In laboratory conditions each panel delivers 100 W. On a roof at the right angle, the 200 W set gives roughly 800-1100 Wh on a clear summer day, less in spring and autumn and several times less in winter. That is enough to fill a DELTA 3 with 1024 Wh during the day and run a fridge, a router and lighting from it. The calculator above this description works it out more precisely for your station.
Who it is for
- A country house or private home where an EcoFlow station is the backup during power cuts and is topped up from the roof every day.
- A garage, workshop, apiary or cabin without a grid connection.
- A camper with a flat roof that has room for a rigid frame.
- Anyone who plans to grow the system step by step: sets are easy to add to each other.
If you need a panel for trips and want to fold it, the portable Lightweight series is the better choice.
Specifications
| Parameter | Value |
|---|---|
| Number of panels | 2 |
| Rated power | 100 W (±5 W) each, 200 W in total |
| Open-circuit voltage (Voc) | 20.3 V |
| Short-circuit current (Isc) | 6.3 A |
| Voltage at max. power (Vmp) | 17.1 V |
| Current at max. power (Imp) | 5.9 A |
| Efficiency | 23% |
| Temperature coefficient of power | -0.39%/°C |
| Maximum system voltage | 600 V DC |
| Dimensions of one panel | 980 x 586 x 30 mm |
| Weight of one panel | approx. 6.2 kg |
| Protection | IP68 |
| Manufacturer warranty | 10 years |
In the box
- Two EcoFlow 100 W rigid solar panels.
- Two sets of mounting feet.
- User manual and warranty card.
The Solar-XT60i cable is not included.
Installation tips
In Ukraine the optimal tilt for a fixed panel is about 35-40 degrees facing south. On a pitched roof the panels follow its slope; on a flat roof the feet give the right angle. Leave an air gap between the panel and the roof: it reduces heating, and each degree of heating costs about 0.4% of power. Avoid shade from chimneys and trees, even on part of a panel. Secure the cables so the wind does not shake them.
Frequently asked questions
Can I buy one panel from the set?
No. EcoFlow makes the ZMS331 as a set of two panels, and we sell it as a whole. Two panels are convenient because together they give 40.6 V in series and fit the input of most stations.
Do I need a charge controller?
Not for EcoFlow stations and Power Kits: the MPPT controller is built in. For a third-party system with 12 or 24 V batteries, choose an MPPT controller for the voltage and current of your connection.
Can the panels stand on the ground?
Yes, the mounting feet let you set them on a level surface at an angle. Secure the feet so the wind cannot move the panels, and keep tall grass from growing around them and casting shade.
How many panels can I add later?
As many as the station input allows in terms of voltage and current. For DELTA this is usually up to two panels in series and two such pairs in parallel; DELTA Pro takes more.
Can the panels be mounted vertically on a wall?
They can, but a vertical panel gets noticeably less light in summer than one tilted at 35-40 degrees. A wall makes sense if the roof is shaded or there is no roof.
The manufacturer warranty on the EcoFlow 100W Rigid panels is 10 years under the EcoFlow Europe policy, with service handled by EcoFlow in the EU. To buy EcoFlow 2x100W Rigid Solar Panel, place an order on the website: we ship by Nova Poshta across Ukraine, and you can pay on delivery.
