Solar parking meters

[AllanH]

Hello,

I've noticed a lot of parking meters & other electric boxes in the street now have solar panels on the top of them. Does anyone know if they run on DC or have built in inverters to convert to AC. I'm just thinking that when PO hits they're not going to be much use for giving out parking tickets so the panels could be salvaged. Does anyone have any idea of their capacity/watt output?

AllanH