One of the greatest areas of concern for the feasibility of...

One of the greatest areas of concern for the feasibility of mainstream solar power is receding. Historically, the incapacity of grids to cope with the intermittent nature of sun or wind generation made solar, and
renewables generally, riskier than oil or gas sources. However, modern grids can manage up to 40% of renewables easily, reducing the need for back-up fossil-fuel generation.

Renewable generation capacity, once built, has no variable fuel cost to account for. That makes
renewables an attractive option for developers and provides a flexible option for places where there are currently no grids.