Many are surprised: Amish use solar panels? Yes. More and more communities — yes.
Logic
Forbidden: grid connection (worldly dependence). Solar panel is autonomous. Sun is God's. Panel on barn roof. Wires inside the farm, not to a pole. So — allowed.
Used For
Charging batteries (for buggy lanterns). Electric fence (for livestock — low current). Pump (for water, instead of windmill in calm areas). NOT for: house lighting (kerosene/gas), TV (forbidden), internet (forbidden).
Cost
Small panel: $200-500. Payback: 1-2 years (savings on batteries and kerosene). Amish count money. Sun is free. Math beats tradition.