What about lightning? Will it hit my system?

We have yet to see an on grid system we have built hit or damaged by lightning. But just in case lightning comes near a system we install lightning arrestors for protection. We do this both to protect the system and because it's good for the house in general. Lighting can enter a building in many ways including phone systems and water lines. Having some kind of lightning protection is a good idea for all homes. Devices such as lightning arrestors can help protect all kinds of electronic equipment in your home such as: TVs, computers, fluorescent lights, furnace and boiler circuit boards, microwaves, water pumps, cellphone chargers, etc, etc, etc…. A well grounded system can also help to protect against lighting. If lighting is of a particular concern to you consider installing a complete lightning protection system whether or not you install a solar electric system.