Results 81 to 90 of about 12,804 (264)

Observations of wind farm wake recovery at an operating wind farm

Wind Energy Science
Abstract. The interplay of momentum surrounding wind farms significantly influences wake recovery, affecting the speed at which wakes return to their freestream velocities. Under stable atmospheric conditions, wind farm wakes can extend over considerable distances, leading to sustained vertical momentum flux downstream, with variations observed ...
Raghavendra Krishnamurthy, Rob Newsom, Colleen Kaul, Stefano Letizia, Mikhail Pekour, Nicholas Hamilton, Duli Chand, Donna M. Flynn, Nicola Bodini, Patrick Moriarty   +9 more
openaire   +4 more sources

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková, Michiel van Dijk, Robert M'Barek, Hans van Meijl, Tomas Ratinger   +4 more
wiley   +1 more source

Planning and Operation of Wind Farms Considering Frequency Safety and Wind Energy Transfer [PDF]

Dianli jianshe
The continuous grid integration of large-scale wind power significantly affects the frequency security and economy of large-scale power grid operation. Therefore， this paper proposes a collaborative planning and operation method for wind farms that takes
JIN Chu, LI Zuohong, LIN Yong, LIU Ruoping, WEI Fanrong
doaj   +1 more source

Environmental Impact of Wind Farms

Environments
The aim of this article is to analyse the global environmental impact of wind farms, i.e., the effects on human health and the local ecosystem. Compared to conventional energy sources, wind turbines emit significantly fewer greenhouse gases, which helps to mitigate global warming. During the life cycle of a wind farm, 86% of CO2 emissions are generated
Mladen Bošnjaković, Filip Hrkać, Marija Stoić, Ivan Hradovi   +3 more
openaire   +2 more sources

Demonstration of AEP boosting by wind farm control at a commercial wind farm

, 2023
Energiekontor AG is a pioneering developer and operator of wind parks with technical innovation as one of its core values. ventodyne GmbH is a young dynamic company specialized in boosting the productivity of wind parks by wind farm control (WFC). Energiekontor and ventodyne have teamed up to bring WFC to the Withernwick wind farm, an onshore park with
Johannes Schreiber, David Coimbra, Carlo L. Bottasso   +2 more
openaire   +2 more sources

Do Tax Incentives for Farmland Leases Increase Farm Supply? Evidence From Iowa's Beginning Farmer Tax Credit

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT In recent decades, agriculture has become increasingly concentrated through horizontal mergers and acquisitions via corporate entities, and policy makers are concerned this will be exacerbated by the aging population of farm operators. To reduce market concentration in agriculture, many states have enacted policies to entice new prospective ...
Justin M. Ross, Wesley M. Zebrowski, Julia C. D. Valliant   +2 more
wiley   +1 more source

Differential Protection for an Outgoing Transformer of Large-Scale Doubly Fed Induction Generator-Based Wind Farms

Energies, 2014
With the rapid development of wind energy, relay protection for large-scale wind farms has been attracting some researchers, due to the absence of standards. Based on the large-scale doubly fed induction generator (DFIG)-based wind farms located in Gansu
Bingtuan Gao, Wei Wei, Luoma Zhang, Ning Chen, YingjunWu, Yi Tang   +5 more
doaj   +1 more source

Assessing Household Welfare in Response to Rising Food Prices in The Gambia

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines how rising food prices affected household welfare in The Gambia using nationally representative data from the 2015/16 Integrated Household Survey (IHS‐3). The analysis reflects household consumption behavior and market conditions prevailing during that period and provides a structural benchmark for understanding ...
Roger Vorsah, Obed Quaicoe, Fafanyo Asiseh, John N. Ng'ombe   +3 more
wiley   +1 more source

Study of Generalized Interaction Wake Models Systems with ELM Variation for Off-Shore Wind Farms

Energies, 2019
This paper reports a novel frandsen generalized wake model and its variation model-frandsen generalized normal distribution wake model for off-shore wind farms. Two different new wake models in off-shore wind farms have been studied comparatively.
Mingcan Li, Hanbin Xiao, Lin Pan, Chengjun Xu   +3 more
doaj   +1 more source

Unpacking the Farmland Capitalization Effect of Ethanol Establishment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We unpack the impact of expansions in ethanol production—as measured by proximity to newly constructed ethanol plants and capacity expansions—on farmland values using land transaction data from Kansas in combination with modern causal inference techniques.
Gabriel S. Sampson, Jisang Yu
wiley   +1 more source