Power and energy expert Vally Padayachee has emphasised the untapped potential and critical importance of optimising the country’s grid system, especially now as it transforms into a high-value smart grid that incorporates smart technologies and serves as a “backup” for renewable-energy power. Padayachee, a former senior executive at City Power, in Johannesburg, and a former executive manager at Eskom, highlights, in an opinion article sent to Engineering News, the need for critical thinking, strategic investment, modernisation and a shift in thinking to address the challenges facing the South African energy landscape.