Just a random thought on the idea that there might be a limit function as it pertains to the desirablility of increased efficiency. We have a 13 kW array. I m

Just a random thought on the idea that there might be a limit function as it pertains to the desirablility of increased efficiency. We have a 13 kW array. I make it a point to keep it cleen. However, this isn’t something one can expect to accomplish daily. At the very least it would waste a lot of water. As a result of this, my panels, on average, enjoy a combination of dust, leaves and, yes, bird poo, sometimes lots of it. If we had 90% efficient panels the combination of dirt, dust and a determined flock of birds could take out 50% of my energy generation capacity. Having a less efficient system distributed across a larger area might actually be a better idea.