Results 71 to 80 of about 1,754 (165)
Zhongguo dianliTo address the current challenges including increasing penetration of wind-solar renewable energy sources, drastic reduction of system inertia, poor frequency stability, insufficient overall regulation capability, and source-load spatial mismatch, this ...
Yonglong ZHAO +7 more
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Recommendations to Reform the National Electricity Market (NEM)
Australian Journal of Agricultural and Resource Economics, EarlyView.ABSTRACT Australia's National Electricity Market (NEM) was established in the late 1990s. The market is an energy only gross pool with zonal (state‐based) pricing. Over the past 15 years, the system has undergone a profound transformation as large coal‐fired power stations have retired and substantial volumes of large‐scale and embedded behind the ...
Tim Nelson +3 more
wiley +1 more source
Energy NexusThe rapid growth of renewable energy penetration and the global transition toward carbon-neutral power systems have significantly increased the need for flexible and reliable large-scale energy storage technologies capable of managing the stochastic ...
Wajid Khan +7 more
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Electricity Retailer Hedging Using Fungible Financial Renewable Energy Contracts
Australian Journal of Agricultural and Resource Economics, EarlyView.ABSTRACT In energy‐only electricity markets, such as the Australian National Electricity Market (NEM), all electricity is bought and sold within the spot market and energy retailers hedge their load using financial contracts. These interrelated markets are key aspects of the NEM design.
Jonty Flottmann +2 more
wiley +1 more source
Computer Graphics Forum, EarlyView.Abstract While semi‐analytical boundary handling techniques have proven effective for modeling particle‐based fluid‐solid interactions, they can become unstable when applied to mesh boundaries undergoing dynamic motion or featuring complex, sharp geometries.
Junyuan Liu +5 more
wiley +1 more source
Hydro aeropower for sustainable electricity cost reduction in South African farming applications
Energy Reports, 2019 This paper develops a model which can be used to minimize the electricity cost of South African farms through the usage of a wind pump with pico hydro generator and a borehole in pumped hydro storage configuration referred to as “hydro aeropower”.
Kanzumba Kusakana
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Managed Aquifer Recharge Operations and Design under Hydrologic Uncertainty
Groundwater, EarlyView.Integrated hydrologic modeling uses dual ensembles of MAR operations and IES‐derived parameters to evaluate mounding, inundation, and transport risks under climate extremes. Exceedance‐probability metrics quantify environmental risks across the MAR impact zone, showing drain‐controlled mound limits, recovery effects, and pathways to interdunal and ...
Wolfgang Schmid +4 more
wiley +1 more source
Journal of Agrarian Change, EarlyView.ABSTRACT Large‐scale irrigation schemes are central to agrarian transformation in sub‐Saharan Africa, yet their political implications are often reduced to questions of land redistribution or agrarian differentiation. Although existing scholarship has documented how irrigation restructures agrarian relations and generates dispossession, less attention ...
William's Daré
wiley +1 more source
New Phytologist, EarlyView.In a mature Scots pine forest (Pfynwald, Switzerland), canopy vapor pressure deficit (VPD)a was reduced with a misting system (a) and combined with a throughfall‐exclusion roof that imposed soil drought (b). Under the roofs (c), trees at ambient VPD closed their stomata steeply as predawn water potential (ΨPD) fell, reaching closure around −1.2 MPa ...
Giovanni Bortolami +19 more
wiley +1 more source
工程科学与技术ObjectiveLeveraging the regulatory and energy storage capabilities of hydropower and pumped storage to mitigate the fluctuations in wind and photovoltaic output has emerged as a novel model supporting large-scale development of new energy, high ...
HE Junqi +4 more
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