I think you could combine the two in parallel. A problem with solar panels is that their efficiency drops as they heat up. It might be cost effective to use the

I think you could combine the two in parallel. A problem with solar panels is that their efficiency drops as they heat up. It might be cost effective to use these panels as heat sinks for a solar panel for passive cooling. That said, the material is specified to have a cooling capacity of ~40Wm^-2. You normally assume something like ~800-1000Wm^-2 for incident solar radiation, so I'm not sure how economical using something like this with a solar array would be. Really cool though.