Re: Solar Driveway Lights
You'd need to know the Voltage of the new lights as well; if they're 12 VDC or 24 VDC. It's going to be a problem either way as that is a very long run for such low Voltage. A quick estimate shows 24 VDC running 2 Amps total load would need 6 AWG wire for the 1400 feet. That would be really, really expensive.
A couple of options: replace the lights with independent solar units (check carefully to be sure they're bright enough and will last 5 hours) or change the existing ones for 120 VAC LED units if you can find them. Then if you still want to experiment with solar you could power them from a small inverter.
Basically, your wire run is a killer for low Voltage.
1220 Watts of PV, OB MX60, 232 Amp hrs, OB 3524, Honda eu2000.
Ohm's Law: Amps = Volts / Ohms
Power Formula: Watts = Volts * Amps