advice on 1,500 ft. undergound?
I would like to have an electric opening gate at the end of our driveway. We have not decided on a gate yet, tho it would be 14 ft wide and more-than-likely a swing gate and not real heavy. Operator is around 1/2 hp, with a programmable timer to shut the gate at night and open it in the morning. Running underground to the gate is around 1,500 ft. from an existing panel. Solar is an option but not preferred. I met with the electric company, to put in a separate meter, that would be at least $500, plus lots of messy wiring and an added pole, and another monthly bill.
We can rent a ditch-witch and lay the wire. I have priced 10-2 underground in a 1,000 and 500 ft. roll but our local electric supply suggested that 1,500 ft. is too much of a distance for 10-2(no one else has mentioned this before, not even 2 gate installing companies who have come by to give me an estimate on doing the work). Aluminum wire was suggested instead of copper. We have run aluminum wire to the barn(600 ft.) to run electric fencer, hot water heater, lights, with no problems.
We must be missing something obvious, Any suggestions as to alternatives would be appreciated. There is no electrical inspection for something like this so I am not too concerned with necessarily going by the book. This opener will not get a lot of use.