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), mini-hydro, wave and tidal, geothermal. This also includes developing more flexible electricity grids (including transmission infrastrucures, battery storage and seasonal storage), modernization (new and refurbishment) and off-grid sustainable power (mini-grid or stand-alone). Unsustainable solutions are excluded.