A number of renewable electricity technologies, such as wind, wave, tidal, solar, and run-of-river hydro share a characteristic that distinguishes them from conventional power plants: their output varies according to the availability of the resource. This is commonly perceived to be challenging...

"Re-powering" refers to the process of replacing older power stations with ones that are more efficient and more powerful, but the term also lends itself to market design. To facilitate the transition to a low-carbon economy, electricity markets will need to be "re-powered": older market...