Gathering solar power isn't a problem, but storing it is. Lithium-ion batteries can be cheap now, but I am afraid that we just have not enough lithium sources to build as many batteries as we need.
Also it's unclear for me how to deal with winter. Storing energy gathered in summer for consuming it during winter isn't viable, sine it requires too much storage capacity. The only way left is to have enough solar cells to produce enough energy in winter, but it may be too costly, since typical winter power output is several times less than during summer.
Also it's unclear for me how to deal with winter. Storing energy gathered in summer for consuming it during winter isn't viable, sine it requires too much storage capacity. The only way left is to have enough solar cells to produce enough energy in winter, but it may be too costly, since typical winter power output is several times less than during summer.