jamie auto

Hi all, Many thanks for your replies am learning a lot from them. Eric I was thinking to allow two days of autonomy but from Bengi's calculations quite impractical really. The households will have low wattage lighting and the refrigeration for clinic vaccines is at 3kWh/day and the fishing village operates at 400kWh/day, total usage estimates 700kWh/day noting Jeremy's judgment that this is just an impossibility with a 3kW pico hydro! The Australian scene is just too expensive for islanders so we source from China!

Hi, am from the remote Baelelea region of Malaita island in Solomon Islands.  Am acquiring a pico hydro 3kW system (correcting for overall efficiency useful power at 2.4kW) to run a community primary school, rural clinic and about 60 households in 4 small rural villages, estimates at 600-700kWh/day consumption.

I need your help regarding building a battery bank especially to maintain clinic and frozen goods, assumption, two days of autonomy during maintenance of power stations and or necessary shutdowns during thunderstorms. Need to build a battery bank. What capacity should the battery bank be? How many 12V batteries would I need?

Many thanks,
Jamie