How Much Battery Storage Does a Costa Rican Home Need?

Battery size comes from two things: the loads you want to run and for how many hours.

A quick method

List your critical loads, estimate their daily energy in kWh, and multiply by the hours of backup you want. Add a margin for losses and future growth.

Check the inverter too

Peak power matters as much as capacity. Starting a pump or air conditioner needs an inverter that can deliver the surge.