Your numbers are only close to correct if the person is using the same amount of electricity as a person in the USA (which no-one does) and they used all that p

Your numbers are only close to correct if the person is using the same amount of electricity as a person in the USA (which no-one does) and they used all that power during peak hours (which no-one does). Were that the case, then it's 29 cents per kWH on average using those figures. I will freely admit that poor people in Costa Rica have less discretionary income than rich people in the USA.