This study aims to add the biomass power to the 100%renewable energy system for Akita prefecture in the previous study,and to analyze the energy cost and availability of each facility.It was assumed that the onshore w...This study aims to add the biomass power to the 100%renewable energy system for Akita prefecture in the previous study,and to analyze the energy cost and availability of each facility.It was assumed that the onshore wind power potential would be installed,and the target area was decarbonized.The heat and transportation demand were supplied using renewable electricity and carbon free hydrogen.Hourly renewable energies and electricity demand were analyzed,and the surplus electricity amount was estimated.As the electricity demand cannot meet renewable energy,the shortage was supplied by battery.Three scenarios were considered such as“no biomass”scenario that the biomass power was not installed,“supply shortage”scenario that the biomass power operated when the electricity demand could not meet other renewable energy,and“baseload”scenario that the biomass power operated stable.As a result,although installed biomass power capacity was much smaller than installed wind power,the biomass power reduced the required battery capacity and increased its availability.The energy costs of all demand sector in“baseload”scenario were smaller than“no biomass”scenario.展开更多
Rapid cost reductions have led to the widespread deployment of renewable technologies such as solar photovoltaics(PV)and wind globally.Additional storage is needed when the share of solar PV and wind in electricity pr...Rapid cost reductions have led to the widespread deployment of renewable technologies such as solar photovoltaics(PV)and wind globally.Additional storage is needed when the share of solar PV and wind in electricity production rises to 50–100%.Pumped hydro energy storage constitutes 97%of the global capacity of stored power and over 99%of stored energy and is the leading method of energy storage.Off-river pumped hydro energy storage options,strong interconnections over large areas,and demand management can support a highly renewable electricity system at a modest cost.East Asia has abundant wind,solar,and off-river pumped hydro energy resources.The identified pumped hydro energy storage potential is 100 times more than required to support 100%renewable energy in East Asia.展开更多
基金This work was funded by the research grant of the Toyota Mobility Foundation(TMF).
文摘This study aims to add the biomass power to the 100%renewable energy system for Akita prefecture in the previous study,and to analyze the energy cost and availability of each facility.It was assumed that the onshore wind power potential would be installed,and the target area was decarbonized.The heat and transportation demand were supplied using renewable electricity and carbon free hydrogen.Hourly renewable energies and electricity demand were analyzed,and the surplus electricity amount was estimated.As the electricity demand cannot meet renewable energy,the shortage was supplied by battery.Three scenarios were considered such as“no biomass”scenario that the biomass power was not installed,“supply shortage”scenario that the biomass power operated when the electricity demand could not meet other renewable energy,and“baseload”scenario that the biomass power operated stable.As a result,although installed biomass power capacity was much smaller than installed wind power,the biomass power reduced the required battery capacity and increased its availability.The energy costs of all demand sector in“baseload”scenario were smaller than“no biomass”scenario.
基金Support from the Energy Transition Hub (https://www. energy-transition-hub.org/)the Australia Indonesia Centre (https://australiaindonesiacentre.org/)+2 种基金the Australian Renewable Energy Agency (https://arena.gov.au/)supported by ARENA and Data61partially supported by the Australian Government through the Australian Renewable Energy Agency (ARENA)
文摘Rapid cost reductions have led to the widespread deployment of renewable technologies such as solar photovoltaics(PV)and wind globally.Additional storage is needed when the share of solar PV and wind in electricity production rises to 50–100%.Pumped hydro energy storage constitutes 97%of the global capacity of stored power and over 99%of stored energy and is the leading method of energy storage.Off-river pumped hydro energy storage options,strong interconnections over large areas,and demand management can support a highly renewable electricity system at a modest cost.East Asia has abundant wind,solar,and off-river pumped hydro energy resources.The identified pumped hydro energy storage potential is 100 times more than required to support 100%renewable energy in East Asia.
