Geothermal an option for the Peak?

So. We're currently deciding whether we should go Geothermal for heating / cooling our new place. Geothermal is great - use 1 unit of electricity, get 3-5 units of heat out of the ground (or lake). However, geothermal uses compressors and pumps, all of which have very large startup currents, which would require an enormous battery bank / inverter / solar (PV) system. Anyone have any thoughts on this? Feel free to leave comment.