It's been a while since I reported on the Solar Powered Rainwater Project. Since that early-April post, I've been gathering the rest of the parts, and we took our annual trip to the Red Power Roundup -- this year at the Iowa State Fair in Des Moines. The biggest part of the delay was waiting for the inverter/charge controller. I wasn't thrilled with the delivery delay on the device, but it turned out well in the end.