When comparing solar panels, the REC Alpha REC400AA and SunPower A-Series SPR-A400 (manufactured by Maxeon) have several similarities. Both panels are monocrystalline with a rated power of 400W, a 25-year warranty, and 0.25% derating. While the efficiency rating for SunPower's panel is 21.4%, REC's panel has a slightly higher efficiency rating of 21.6%, although the difference is minimal.
One significant advantage of the REC panel is its 132 monocrystalline half-cut cells, compared to SunPower's standard 66 cells. This feature gives the REC panel an edge in shading tolerance and leads to a slight increase in panel efficiency. Additionally, the half-cut cells in REC's panel are physically more durable than traditional cells, thanks to their smaller size, making them less susceptible to cracking.
Another notable difference between the two panels is their price and bankability. While both panels have comparable features, SunPower's A-Series SPR-A400 is typically more expensive than the REC Alpha REC400AA, which is still a reputable and bankable product. Therefore, the REC panel is an excellent option for those seeking a high-quality, durable, and cost-effective solar panel system.