What is significant drawback to transferring electricity produced by solar where sunshine is abundant to states where it is not

The transfer could only occur during the day because it cannot store solar energy.

Explanation:

The transfer of electricity produced from solar energy only occurs during the day because it cannot store solar energy at a tremendous level. At homes, we can easily store the electricity made from solar energy with the help of batteries but for providing electricity to a state where thousands of houses are present, enormous batteries are needed to store it which can't be made because of very high cost so that's why the solar energy can not be stored.