These numbers are general approximations only. Actual numbers will vary. Be sure to check manufacturer specifications for dimensions specific to your solar panel model.
- 20 watt panel: 20 in. x 14 in. x 1 in., weight 5 lbs.
- 50 watt panel: 26 in. x 21 in. x 1.2 in., weight 10 lbs.
- 100 watt panel: 47 in. x 21 in. x 1.5 in., weight 16 lbs.
- 250 watt panel: 65 in. x 39 in. x 1.6 in., weight 40 lbs.
- 300 watt panel: 77 in. x 39 in. x 1.8 in., weight 50 lbs.
Why You Need to Consider Solar Panel Dimensions
You probably wouldn’t assume this, but solar panel dimensions are an important part of planning your DIY solar power system—more so with RVs, cabins, and tiny houses than full-blown residential systems.
This is mainly because of two things: limited roof space and ease of installation.
Limited Roof Space
RVs usually have vents and air conditioners that get in the way of installing those long, glimmering arrays of solar panels that you typically see in solar commercials and on residential rooftops. Instead, RVers have to squeeze solar panels in where they can. It would be nice to install several solar panels in a nice, neat row, but most of the time RVers have to buy what fits, no matter what the wattage. If they need more solar panels, they carry portable panels and set them up when they set up camp.
It’s important to know both the solar panel dimensions and the dimensions of the space in which you plan to install the panel. Steer clear of vents and other obstacles that could cast shadows on your solar panels, as shadows significantly decrease the output of solar panels.
Boats often have the same problem, but it depends on the type of boat. Some boaters can mount solar panels to a fiberglass canopy, if their boat has one. However, a lot of boaters end up mounting their solar panels like this:
Cabins and tiny houses have small roofs, which does limit the number of solar panels that can be installed, but compared to RVs and boats, they actually have it rather easy. They also have the option of mounting the solar panels on a rack closer to the ground. The bigger concern with mounting solar panels on the roof of a tiny house or cabin is how easy they are to install.
Ease of Installation
Knowing solar panel dimensions and considering their ease of installation is definitely something that a lot of DIYers overlook. The smaller 100 watt panels typically weigh about 17 lbs. each, and the larger 250 watt panels typically weigh about 40 lbs. each.
You’re probably thinking to yourself, “I’m a healthy, somewhat fit individual. I can lift 40 lbs. no problem,” but think about this:
Can you lift 40 lbs. of aluminum and glass in the most awkward configuration possible, with one hand, standing on a ladder, 10 feet off the ground, and then maneuver that bulky 40 lbs. onto a rooftop without damaging anything?
I don’t even Arnold in his Mr. Olympia days could do that. You’re going to need help.
- Installing 100 watt panels on a roof: two person job
- Installing 250+ watt panels on a roof: three person job
I speak from experience, of course. My van has six 100 watt solar panels on its roof, and while they are only 17 lbs. each, and even though Jef is an ex-gymnast who has biceps the size of my thigh, even he needed me to assist him in hoisting my solar panels up onto my van’s roof.
So yes, ease of installation is definitely something to consider, and knowing the dimensions and weight of the solar panels that you plan to install can only help you. With this in mind, you can call up a few friends and throw a solar panel installation party instead of throwing your back out trying to install your solar panels by yourself.
Ultimately, it boils down to this:
Smaller, lighter panels are easier to install (fewer laborers needed) and can fit in tight spaces. Larger, heavier panels are more cost effective, but more cumbersome to install.
What if you don’t plan to install your solar panels on a roof?
What if you plan to keep your solar panels closer to the ground? Even so, the larger panels 250 watt panels are 40 lbs. of pure awkwardness. In my opinion, just taking the panels out of their boxes and unwrapping the foam is cumbersome.
What about flexible solar panels?
Flexible solar panels are great, but there is a small problem with the current technology that we have so far. The flexible solar panels that are currently on the market are prone to “cupping” slightly. Over time, the edges of each solar cell warp upward just a tiny little bit, trapping dirt and debris in the center of the cell, thus decreasing output of the entire panel. This probably isn’t so much of an issue mounted on slanted roofs, but on RVs with flat roofs this is definitely a concern.
While flexible solar panels are much, much easier to install (very lightweight), they are also more permanent, more expensive, and more prone subpar output. That said, you’ll still need to know the dimensions to make sure that they fit. Renogy flexible solar panel dimensions are included in the list below.
So let’s get on with it, shall we? I’ve compiled a list of the some of the commonly used solar panels in DIY installations, and filled out their dimensions for you.
Solar Panel Dimensions List
- All numbers are taken from manufacturer specification sheets. I am not liable if these numbers are incorrect. You should verify on your own.
- Type refers to Monocrystalline/Polycrystalline
- Length, Width, and Height are in INCHES
- Weight is in POUNDS
- This list is best viewed on a computer or tablet.
|Grape Solar PHOTO-FLEX-50W||50||Mono||yes||30.31||21.09||0.2||1.5|
|Grape Solar (32 cell) GS-S-100-TS||100||Mono||no||40.8||20.7||1.38||16.3|
|Grape Solar (36 cell) GS-S-100-Fab36||100||Mono||no||47||21.1||1.57||17.6|
|Grape Solar GS-Star-100W||100||Poly||no||40.16||26.37||1.57||19.66|
|Grape Solar PHOTO-FLEX-100W||100||Mono||yes||41.34||21.26||0.2||3|
|Grape Solar GS-S-105-Fab8||105||Mono||no||40.16||26.37||1.57||19.6|
|Grape Solar GS-S-135-TS||135||Mono||no||56.3||21.47||1.38||22.67|
|Grape Solar GS-S-150-Fab36||150||Mono||no||58||26||1.57||26.4|
|Grape Solar GS-S-160-Fab8||160||Mono||no||58||26||1.57||26.4|
|Grape Solar GS-S-190-Fab3||190||Mono||no||62.3||31.9||1.6||33|
|Grape Solar GS-S-195-Fab3||195||Mono||no||62.3||31.9||1.6||33|
|Grape Solar GS-S-200-Fab1||200||Mono||no||62.3||31.9||1.6||33|
|Grape Solar GS-P-210-Fab1||210||Poly||no||58.8||39.1||1.97||38.3|
|Grape Solar GS-P-220-Fab5||220||Poly||no||64.9||38.9||1.6||43.3|
|Grape Solar CS-P-230-DJ||230||Poly||no||65||39.4||1.97||43.3|
|Grape Solar GS-P-235-Fab1||235||Poly||no||65||39.4||1.57||44.1|
|Grape Solar GS-S-240-Fab1||240||Mono||no||65||39.4||1.97||44.1|
|Grape Solar GS-S-250-Fab5||250||Mono||no||64.6||39||1.57||44.1|
|Grape Solar GS-S-255-Fab3||255||Mono||no||62.3||42||2.0||44.1|
|Grape Solar GS-S-260-Fab5||260||Mono||no||64.6||38.7||1.6||42.8|
|LG Solar LG260S1C-B3||260||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-S-265-Fab1||265||Mono||no||64.6||38.7||1.6||42.8|
|Suniva 265-60-4-100, 265-60-4-1B0||265||Mono||no||65.04||38.66||1.57||39.5|
|LG Solar LG265S1C-B3||265||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-S-270-Fab1||270||Mono||no||77.5||39.4||2.9||52.9|
|Grape Solar CS-P-270-DJ||270||Poly||no||77||38.9||2.0||55.6|
|Suniva 270-60-4-100, 270-60-4-1B0||270||Mono||no||65.04||38.66||1.57||39.5|
|LG Solar LG270S1C-B3||270||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-P-275-EUG||275||Poly||no||77||39.1||2.0||51|
|Suniva 275-60-4-100, 275-60-4-1B0||275||Mono||no||65.04||38.66||1.57||39.5|
|LG Solar LG275S1C-B3||275||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-S-280-Fab1||280||Mono||no||77||39.1||2.0||51|
|Grape Solar GS-P-280-Fab1||280||Poly||no||77||39.1||2.0||51|
|Suniva 280-60-4-100, 280-60-4-1B0||280||Mono||no||65.04||38.66||1.57||39.5|
|LG Solar LG280S1C-B3||280||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-S-285-Fab1||285||Mono||no||77||39.1||2.0||51|
|Grape Solar GS-P-285-Fab1||285||Poly||no||77||39.1||2.0||51|
|LG Solar LG285N1C-A3||285||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-S-290-Fab1||290||Mono||no||77||39.1||2.0||51|
|Grape Solar GS-P-290-Fab1||290||Poly||no||77||39.1||2.0||51|
|LG Solar LG290N1C-B3||290||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-S-295-Fab1||295||Mono||no||77||39.1||2.0||51|
|Grape Solar GS-P-295-Fab1||295||Poly||no||77||39.1||2.0||51|
|LG Solar LG295N1C-B3||295||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-S-300-Fab1||300||Mono||no||77||39.1||2.0||51|
|LG Solar LG300N1C-B3||300||Mono||no||64.57||39.37||1.38||36.96|
|Grape Solar GS-S-385-TS||385||Mono||no||77.2||51.5||1.57||78.2|
|Grape Solar GS-S-390-TS||390||Mono||no||77.2||51.5||1.57||78.2|