What It Is 

This Renogy 250W solar panel is one of the most efficient bifacial solar panels available for serious off-grid and home backup systems. Unlike standard single-sided panels, these bifacial solar panels capture sunlight from both the front and rear, delivering an 80% bifaciality factor for roughly 14% more power from the back side alone. Built with N-type cells and 16BB technology, it's a real high wattage solar panel designed for rooftop backup power supply systems, RVs, and cabins. 

Why You Need This 

A blackout doesn't care whether your solar setup was "good enough" on average days, you need real capacity in extreme heat or overcast weather. N type solar panels outperform older PERC designs. They have a low temperature coefficient which means less power loss on hot days, and bifacial solar panels keep generating even in cloudy, indirect light. If your family depends on a generator alone for backup power supply, you're one fuel shortage away from being in the dark. 

Key Features 

• 250W output, 25% cell efficiency - a genuine high wattage solar panel per square foot 

• 80% bifaciality factor - these bifacial solar panels capture ~14% more power from the rear 

• N-type 16BB cells - N type solar panels resist microcracks and outlast PERC panels 

• Low temperature coefficient - stays efficient even in extreme summer heat 

• Rugged aluminum frame - built to handle harsh weather for years of backup power supply 

• Low-iron tempered glass - maximizes light capture and durability 

• Tiered warranty - 5-year/10-year/25-year output warranty  

Specifications 

• Max power: 250W 

• Cell efficiency: 25% (cell) / 21.2% (module) 

• Bifaciality factor: 80% (~14% rear power boost) 

• Size: 60.9 x 30 x 1.2 in 

• Weight: 27.3 lbs 

• Temp coefficient: -0.29%/°C 

• Compatibility: MPPT/PWM controllers, <25V 

Who It's For 

This is great for suburban families building a serious home backup power supply, RV and van owners who need a high wattage solar panel in limited roof space, and anyone comparing N type solar panels for long-term reliability. These bifacial solar panels suit rooftops, sheds, and off-grid setups alike. 

These bifacial solar panels deliver more power per panel, hold up in extreme heat, and keep your backup power supply running when you need it most. If you'recomparing bifacial solar panels for your emergency power supply setup, add this one to your energy independence plan today.