Solar water pump is a very good idea, especially if combined with a storage tank at a high elevation. But even without it, running a well sustainably during system failure to irrigate, wash, clean etc will be very useful. I was originally thinkking of using it in a location that I grow in that has no water supply or electricity if I dug a well. Decided not to dig the well. In general small useful items: radios, cell phones, maybe a mini fridge for critical items, water pump in house (we have out own tanks...where does your water come from?), small lights etc.