Growth of distributed solar power is increasing to help meet the world's growing energy needs. By 2030, the world will need 15 terawatts (TW) of power but only 5 sources can provide energy on that scale, including solar. Solar has the advantage of being inherently distributed without fuel costs. Though solar currently provides a small portion of global demand, its competitiveness is growing as costs decline and policies promote its adoption. Companies are working to further reduce costs through technological advances and more efficient manufacturing processes and supply chains to drive solar toward grid parity globally.