The relatively EASY part is building large arrays of solar panels ..... The HARD PART is 1) STORING this electricity ( Storage is very expensive and technolog

The relatively EASY part is building large arrays of solar panels ..... The HARD PART is 1) STORING this electricity ( Storage is very expensive and technology changing) 3) Getting this electricity from the storage to where its wanted - is EXPENSIVE and requires many $BILLIONS of new transmission lines ....