This discussion paper explores the intersection of smart grid technology, policy and regulation from a non-technical point of view, focusing on some specific questions relevant for decision makers, including (1) the challenges of integrating variable renewable energy into power grids, (2) the types of emerging smart grid solutions for integrate variable renewable energy, (3) examples from around the world of smart grids aiding in the integration of variable renewable energy and (4) the types of policy and regulatory approaches that are emerging to support smart grid solutions in relation t