Sustainable power supply includes power produced by sustainable energy sources, development of which is guided by robust human rights policies. Such sources might include solar (photovoltaic and thermal), wind (on and offshore), hydropower under certain conditions, wave and tidal, geothermal. This also includes developing more flexible electricity grids (including transmission & distribution infrastructure, battery storage and other energy storage technologies), modernization (new and refurbishment) and off-grid sustainable power (mini-grid or stand-alone). Unsustainable solutions are excluded.