Bifacial

submitted by /u/sg_plumber to r/climatechange [link] [comments]

Tried bifacial modules on a small off-grid setup this year. The rear-side gain depends entirely on what surface sits below your panels. Here is the breakdown by ground surface: White gravel or concrete: rear gain up to 15-20% Green grass: rear gain around 5-8% Dark soil: rear gain drops to 2-4% Minimum 300mm ground clearance lets the rear side work properly. If you flush-mount on a dark roof, bifacial gives you almost no advantage over monofacial. In those setups, save the cost difference and buy better storage instead. Anyone running bifacial on a DIY off-grid system? What ground surface are you working with? submitted by /u/Comfortable_Bear4211 to r/SolarDIY [link] [comments]

submitted by /u/SolarAllTheWayDown to r/SolarAmerica [link] [comments]

I have been researching solar tech for a long while now, and I really want to get solar and even built my house to have an amazing perfectly south facing roof that would neatly fit the panels. There is zero shade from trees, the roof is covered with black shingle I have contacted multiple companies, and every quote I got for roof top solar is for bifacial panels with microinverters or with optimizers both of which remarkably increase the cost of the actual roof top array. But according to what I am learning, my roof actually would need monofacial, since there is no reflected back lights, and should not need any microinverters or optimizers because I don’t get partial shade on any panel. So I really should get monofacial panels on string inverters. I wonder why the quotes come out like that ? Is it upselling on the hardware that I don’t need ? Or is there a legitimate reason ? submitted by /u/mohelgamal to r/solar [link] [comments]

Straightforward install. It’s been up and running since September. Started out with one battery and the homeowner opted for a second about a month into the process. They’re running with a free nights plan and have stated they’re happy with it. We’d have probably been able to add at least 1 more panel to the roof that has Array 3, but the roof changed pitch about a foot before the eave. That would make rails/panels sit wonky and we didn’t want to run the risk of any issues. This is another install we built support shelves under because they’re hanging on the wall at 350lbs each. I wish Plano would understand FranklinWH batteries are perfectly fine sitting on the ground and a garage is not habitable space. Homeowners are great people. They were pretty well informed about solar beforehand. Out of pure curiosity I checked to see when the homeowner and I first talked and today is the exact one year anniversary. They may linger the halls here and they’re welcome to chime in if they would like. Thanks for reading 🙏🏻 submitted by /u/SolarAllTheWayDown to r/solar [link] [comments]

Hi everyone, I’m hoping to get some advice from people with real solar experience. This setup is actually for family in Cuba, where the grid situation has gotten really bad. In their area they’re currently getting around 1 hour of electricity per day, so I recently bought an OUPES Exodus 2400 power station to try to give them some basic energy independence. The unit supports up to about 800W of solar input and has a 2232Wh battery, so the goal is to get as close as possible to that solar limit during the day. PV Input from Manual: 12~78Vdc MPPT:16~70V 13.3A 800W Max The challenge is that the panels must be portable, because they need to: • be taken outside every morning • brought back inside every night for security • sit on a white tile corridor, so I’m thinking bifacial panels might help capture reflected light I was initially considering buying: 2 × ECO-WORTHY 2-Pack 195W N-Type 18BB bifacial panels (so 4 panels total ≈ 780W nominal) But before pulling the trigger I wanted to ask the community: Are there better options that might produce more real-world power? Ideally panels that are: • bifacial • portable / easy to move daily • around 200-220W each • not too heavy • high efficiency • not expensive premium brands like EcoFlow EcoFlow panels look great but they’re very expensive, and I assume there must be generic panels using similar cell technology that perform just as well. The main goal is simply: Get as close as possible to ~800W real solar input in strong Caribbean sun. If anyone has experience with: • portable bifacial panels • N-type / TOPCon panels from lesser-known brands • setups that work well with power stations around the 800W solar input range I’d really appreciate any recommendations or lessons learned. Thanks a lot 🙏 submitted by /u/True_Improvement_657 to r/SolarDIY [link] [comments]

Figured this was a neat datapoint to share. We recently got a 16.1 kW ground mount installed in western NY downwind of Lake Erie (150-200 inches of snow/yr, ideal territory for a hobby chicken farm). The panels are bifacial and were installed facing south with a 20 degree tilt at about 4 feet off the ground at their lowest point. On 03/02/2026, we had our first full sun day in 3 months. The ground was still covered in about a foot of snow during this time. I can verify that it was impossible to look at the ground without going blind. One week later we just had our second full sun day in 3 months, but this time without the snow. I’ve plotted the two days overtop (yes, I accounted for Daylight Savings. No I don’t know why I still have to deal with that in 2026). Overall, the day with snow cover produced 101.7 kWh and the day without snow cover produced 97.3 kWh. There’s a few differences not attributable to the snow: -ice on panels slows initial production on the snow day -scattered cirrus clouds creating bumps in the afternoon of no snow day -no snow day gains one week of improved sun angle but in general you can still pretty clearly see the impacts of the snow. For the majority of the day, the snowy ground cover day averages about 7% more production than the no snow cover day. Conclusion: Should I actively root for a brutally cold and snowy winter to get a 5-10% gain on my daily solar production? No, probably not. But it’s going to happen anyways, so I might as well appreciate the marginal benefits! Caveat: This conclusion was drawn from a sample size of 1 for each day. I don't know how much, if any, variability can occur between sunny days, but it's going to be another 3 months before the next sunny day, so this is the best I've got to work with. submitted by /u/zrb5027 to r/solar [link] [comments]

Note the sea of solar panels picture shows the old service heads. We discovered code required metal and subsequently swapped that out. West Fleming was my electrician. He did a great job ensuring we were code compliant and would pass inspection. My setup used signature mini rail system for metal standing seam roofs. Good setup and ensures no roof penetrations. we have had 50-60mph winds and they have held strong. I did the solar panel install myself. submitted by /u/Fuzzy_Necessary_3211 to r/solar [link] [comments]

I upgrading my home solar system and local installers are pushing bifacial modules hard. They claim I'll get 10-30% more energy from reflected light off my light-colored roof. The math seems compelling in their presentation, but I'm skeptical about real-world results. My roof is standard asphalt shingle (light gray), and I have decent southern exposure. My main questions: Does the extra upfront cost actually pay back faster? How much does roof color and material really impact bifacial performance? Are there specific brands or certifications I should look for? I'd rather hear from people who actually installed them 1-2 years ago rather than sales pitches. Did your production numbers match the projections, or was it overhyped? submitted by /u/Comfortable_Bear4211 to r/solarenergy [link] [comments]

I have 33 panels that typically put out around 11kw peak, I just got 25 of them mostly scraped off, and I'm getting 13kw, with the other 8 uncovered I would be somewhere around 15kw. Some of it is the cold weather, but the bifacial gain has to be huge with the snow. This is making me think I need to prioritize getting some white ground cover like gravel like I've seen others do. I'm sure it wouldn't be nearly as much but could be a decent ROI. submitted by /u/claytonrex to r/SolarDIY [link] [comments]

This is an install from a few years ago. It’s been performing great except one hiccup last week when a voltage imbalance kicked a breaker and the solar totally shut off. I posted about that already. I called Enphase and they got everything back up and running very quickly. I’m really happy with the panel distribution and getting an even amount of energy all day. Homeowner already built a pergola and wanted to add solar to it. Pergola itself sits flat so we had to order tall attachments and create an angle ourselves. Part of the fun for me is figuring out solutions to problems you don’t expect. The pergola canopy had corrugated plastic attached and angled for water runoff. Homeowner wanted to keep it as water proof as possible. If memory serves the city of Flower Mound said we could not add roofing material to the pergola as that would change what the definition of the structure was. But solar panels wouldn’t cause that change. I used to work in the sign industry and we wrapped cars with vinyl. If you use the right stuff it will last years, even in blazing hot Texas. So I went and had strips of black vinyl cut to the width that would cover from frame, gap between, to frame of the adjacent panel. To my knowledge it’s still working a couple years later. It will have to be replaced at some point, but it wasn’t hard to put on and much cheaper than any roofing option anyway. We could have used rubber gaskets, but I have had those not be as reliable either. I always make it clear: the one and only way to make sure you don’t have leaks is constructing a real, true roof. Homeowner added a panel/inverter by themselves after install. In the pictures that show Array 1 close up you can see that panel. Array 1 is the pergola. The picture with 11 panels in dark blue is a recent screenshot of the production. Pic with panels in light blue was back in the summer. The added panel sits at roughly a 30 degree angle whereas the other 11 sit at 2 degrees. Same 180 azimuth. In the dark blue pic the production is lower for the main 11 panels and high for that one sitting 30 degrees. In the next pic from summer time you see the production is higher for the 11 panels and lower for that added panel. Cool representation of what angles do for or against your system at different times of the year. Panels at a shallow pitch doesn’t mean the production won’t be there. I know panels are less efficient in hot weather, but I wonder how much sun angle contributes to that. It was a fun project. Homeowner is awesome. They float around these parts and can chime in if they want. submitted by /u/SolarAllTheWayDown to r/solar [link] [comments]

I'm looking into covering my roof with Solar panels. There will be very little space between the panel and the metal roof. Since the Bifacial panels seem to be the same as regular ones - minus the rear protective coating, will that be a problem? submitted by /u/CasaDelGato to r/SolarDIY [link] [comments]

Like the title suggests, I feel like I made a mistake pairing these Eco-Worthy 100w bifacial panels with 3 48v 100ah server batteries. I purchased 12 panels I planned to use with 1 48v 100ah battery and then i bought a second battery and now a third. I'm starting to think it may not be worth sizing up the solar array with these bifacials. I should've gone with 400w panels instead. Do you think I should up the amount of 100w panels or abandon the idea and do something else? Space is not an issue for where these will be ground mounted. Just hate that I sized up my batteries immediately and now regretting my decision on panels... Thanks for your help submitted by /u/Midnight-Adventurous to r/SolarDIY [link] [comments]

Debate between lerma and caddo blade. Recovered in dozer push so there was no stratified context. Found in two pieces and restored by the good Dr. Gomer. Chrisner’s ranch. submitted by /u/aggiedigger to r/LegitArtifacts [link] [comments]

I guess 100% gain on zero production, is still zero production. /s submitted by /u/BoogeDrew to r/solar [link] [comments]

I’ve never seen this before. I’m calling it the gradient dip. submitted by /u/baileymt to r/NameThisThing [link] [comments]

This artifact was not smelted. Instead, it's cold-hammered and annealed copper. As of 2025, there's no evidence that the Old Copper Culture smelted any of their artifacts, although they had the means to (Larry Furo). Source: Wisconsin Archaeologist, Vol. 50, No. 1, 1969 submitted by /u/CopperViolette to r/ArtefactPorn [link] [comments]

133kw 7 Sun Action 19kw dual-axis trackers 3 50kw SMA inverters 9+ miles of wire bored under the parking lot There are lights mounted on the trackers to replace parking lot lighting. The trackers are limited to 45° to allow for potential large vehicles to pass under with plenty of room to spare. submitted by /u/dragonflyfoto to r/solar [link] [comments]

I have quite a few smaller panels, most are portable, have installed panels & backup power systems for others, but felt it was the time to start acquiring sufficient photovoltaic components for a off-grid, home-sized solar backup power system. So went in with a friend on a pallet of 36 panels, 20 of which are mine. Concerned the political winds may shift in the very near future & affect the price/availability of the currently plentiful and inexpensive panels. Definitely will not be roof mounted, highly considering East/West facing Vertical Mounted Arrays. Or possibly a large carport awning & pergola. May go all in & get another 2 pallets on the way. Even if running the most or even all of an entire pallet in series, should be under the 1,500 VDC maximum. submitted by /u/ResolutionMaterial81 to r/SolarDIY [link] [comments]

submitted by /u/Mani_Motard to r/solar [link] [comments]

I thought I'd post my bifacial solar carport after u/OscarThompson posted his bifacial pergola. This bifacial solar carport has 16 x 430w panels. I mounted them parallel to the rafters as apposed to perpendicular so I could have the rafters closer together, and less flex in the panels under high wind loads. Can get the odd typhoon passing through here each year. Next thing is to get an EV to park in here. submitted by /u/ScoobaMonsta to r/SolarDIY [link] [comments]

submitted by /u/JackGreen142 to r/science [link] [comments]