sp calculator, basic (Delphi)
Note: As it wasn't definitely stated in task description about the used battery type and capacity, these supposals were done: Software calculates amount of LiFo 50Ah batteries needed to store electricity generated by Solar Panels enough to meet needs of user (according to his/her input).
These constants could be changed in SpCalculatorUnit.pas:
BATT_DEF_CAPACITY = 50;(initial capacity of battery in Ah, integer)BATT_EFF_RATIO = 0.9;(initial effectivity ratio for LiFo batteries, float, lies in range 0.0..1.0)