Individual renewable energy sources
Details characterizing each renewable energy source are presented. For direct solar energy, variability, wavelength spectra and atmospheric scattering, and other processes are discussed. For wind energy, formation and variability is discussed, as well as the distinction between wind velocity, energy, and power. Waterflows in rivers and ocean are discussed, including currents, waves, and tides. Photosynthesis and biological productivity is discussed, and so are a number of other energy flows, such as geothermal, nuclear, or those formed by thermal and salinity gradients.
Solar radiation variability; Wind power variability; Ocean currents; Hydropower; Wave power; Tidal power; Geothermal energy; ...