The gate, if there was one, does not offer solar panel protection options (at this time) because of where it is located on our lot. Anyhow, a heavy motorized gate is beyond our electricity generating capacity.
You don't need a motorized gate. Use a Forest Service type pipe gate with an electromagnetic lock. The locks work on DC voltage and have extremely low power requirements.
The rule is that you're responsible for closing the gate in back of you entering or exiting. You're going to have a camera at the gate and if the vehicle entering / exiting leaves the gate open - they're out of the club.
You can get locks with internal "bond sensor" that indicates if the lock is open or closed. The way you would setup the gate is to issue a proximity card to each member. Presentation of the card to a card reader at the gate would momentarily drop the power to the lock so the gate can be opened.
The system would require an access control field processor (again extremely low power) to interface the card read and electromagnetic lock. The system can be setup with a cellular auto-dialer so that if the gate is left open, the system will dial one or more pre-programmed phone numbers to alert the appropriate people to the gate being open.
You review the recorded video to find out who left the gate open, and then send them a letter warning them of the infraction and if it happens again - their card will be deleted from the system and they will no longer have range access.
Look at Door King for the field processor, Securitron for the electromagnetic lock, and HID for the proximity cards and card readers.
The Forest Service style gate can be fabricated by any gate company who should also be able to supply all of the appropriate access control equipment.
If you want a gate operator for an automated gate, you can find solar powered gate operators. One of the best is made by
HySecurity.
The HySecurity operators use either DC motors or DC hydraulic pumps to operate and are easily powered by a solar panel with a deep cycle 12 Volt battery.