Editing Renewable energy (section)

===Marine energy===
{{main|Marine energy}}
[[File:Sihwa Lake Tidal Power Station aerial view.jpg|thumb|Aerial view of Sihwa Tidal Power Station in South Korea]]
Marine energy (also sometimes referred to as ocean energy) is the energy carried by [[ocean wave]]s, [[tide]]s, [[salinity]], and [[Ocean thermal energy conversion|ocean temperature differences]]. Technologies to harness the energy of moving water include [[wave power]], [[marine current power]], and [[tidal power]]. [[Reverse electrodialysis]] (RED) is a technology for generating electricity by mixing [[fresh water]] and salty [[Seawater|sea water]] in large power cells.<ref>{{Cite book |url=https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2020/Dec/IRENA_Innovation_Outlook_Ocean_Energy_2020.pdf |title=Innovation Outlook: Ocean Energy Technologies |publisher=[[International Renewable Energy Agency]] |year=2020 |isbn=978-92-9260-287-1 |location=Abu Dabi |pages=51–52 |language=en |archive-url=https://web.archive.org/web/20240320141829/https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2020/Dec/IRENA_Innovation_Outlook_Ocean_Energy_2020.pdf |archive-date=2024-03-20}}</ref> Most marine energy harvesting technologies are still at low [[technology readiness level]]s and not used at large scales. Tidal energy is generally considered the most mature, but has not seen wide deployment.<ref>{{Citation |last1=Gao |first1=Zhen |title=Committee V.4: Offshore Renewable Energy |date=2018 |work=Proceedings of the 20th International Ship and Offshore Structures Congress (ISSC 2018) Volume 2 |page=253 |url=https://ebooks.iospress.nl/doi/10.3233/978-1-61499-864-8-193 |access-date=2024-05-09 |publisher=IOS Press |doi=10.3233/978-1-61499-864-8-193 |last2=Bingham |first2=Harry B. |last3=Ingram |first3=David |last4=Kolios |first4=Athanasios |last5=Karmakar |first5=Debabrata |last6=Utsunomiya |first6=Tomoaki |last7=Catipovic |first7=Ivan |last8=Colicchio |first8=Giuseppina |last9=Rodrigues |first9=Jos&#233|series=Progress in Marine Science and Technology |hdl=11250/2582171 |hdl-access=free }}</ref> The world's largest tidal power station is on [[Sihwa Lake Tidal Power Station|Sihwa Lake]], South Korea,<ref>{{Cite journal |last1=Park |first1=Eun Soo |last2=Lee |first2=Tai Sik |date=November 2021 |title=The rebirth and eco-friendly energy production of an artificial lake: A case study on the tidal power in South Korea |journal=Energy Reports |language=en |volume=7 |pages=4681–4696 |doi=10.1016/j.egyr.2021.07.006|bibcode=2021EnRep...7.4681P |doi-access=free }}</ref> which produces around 550 gigawatt-hours of electricity per year.<ref>{{Cite book |last1=Warak |first1=Pankaj |last2=Goswami |first2=Prerna |chapter=Overview of Generation of Electricity using Tidal Energy |date=2020-09-25 |title=2020 IEEE First International Conference on Smart Technologies for Power, Energy and Control (STPEC) |chapter-url=https://ieeexplore.ieee.org/document/9297690 |publisher=IEEE |pages=3 |doi=10.1109/STPEC49749.2020.9297690 |isbn=978-1-7281-8873-7}}</ref>