Mike Rheinschmidt from the USA has installed a solar system using four POW-SunSmart SP5K. His setup includes 24 240W solar panels and 12 255W panels on his shop roof. The battery system comprises 32 280Ah cells from Docan Power, and Mike plans to expand both the storage and panel capacity as he builds his house. The system is designed with scalability in mind to meet future energy needs.