Since 2019, Central South America (CSA) has been reeling under drought conditions, with the last 4 months of 2022 receiving only 44% of the average total precipitation. Simultaneously to the drought, a series of record-breaking heat waves has affected the region. The rainfall deficit during October–November-December (OND) is highly correlated with the …
Drought features prominently among natural disasters in Chinese history. Analysing the laws that govern the spatial and temporal evolution of drought could support decision-making for drought prevention and control. However, few studies have investigated the long-term evolution rules of drought events on different spatial and temporal scales. In this …
An explicit decision to assess studies focusing on the relationship between climate change and hydropower in SSA, rather than water resources in general or in other specific contexts is made. ... i.e. fossil fuel-fired plants and nuclear units, but also geothermal and biomass power generation, or CSP (concentrated solar power); (ii ...
The El Niño Southern Oscillation (ENSO) is a major driver of southern Africa drought, but the nonlinearity of ENSO variation inhibits accurate drought prediction. While studies have identified multiple sea surface temperature (SST) patterns associated with ENSO, most drought predictions over southern Africa are still based on only two patterns. This study …
Electricity generation capacity. To ensure a steady supply of electricity to consumers, operators of the electric power system, or grid, call on electric power plants to produce and supply the right amount of electricity to the grid at every moment to instantaneously meet and balance electricity demand.. In general, power plants do not generate electricity at …
The photovoltaic power generation is commonly used renewable power generation in the world but the solar cells performance decreases with increasing of panel temperature.
A rare sequence of consecutive flash drought events occurred in the south-central United States during the warm season of 2022. During early June, drought conditions were absent across eastern Oklahoma, Arkansas, and southern Missouri via the United States Drought Monitor (USDM; Supplementary Fig. 1a).Further, 12 cm of rainfall fell across the region during a three …
The resulting relationship between power output and incident irradiance, at different air temperatures, is shown in Fig. A.17. Note that, unlike in the wind power curve, this model has no upper limit to solar power output, so the capacity factor is not limited to lying between 0 and 1.
This data-driven analysis quantifies rare weather-related events and provides an understanding that can be used to inform stakeholders in future electricity systems. As reliance on wind and solar power for electricity generation increases, so does the importance of understanding how variability in these resources affects the feasible, cost-effective ways of …
Renewable energy resources, which depend on climate, may be susceptible to future climate change. Here we use climate and integrated assessment models to estimate this effect on key renewables.
The weakening relationship between the Indian Monsoon and ENSO has been discussed by Kumar et al. (1999) and Chang et al. (2001). While the mechanisms for decreasing relationship between ENSO and summer rainfall in eastern China since the 50s are not known so far, since east Asian monsoon is far more complicated than south Asian monsoon.
When the solar activity strengthens, we see the length of the solar cycle shorten and more floods occur in South China and frequent strong earthquakes happen in the Tibetan Plateau, but the …
This system combines the two natural energy sources of solar energy and day and night, and achieves air condensation into water throughout the weather. During the day, the system uses solar power generation boards to power the micro -suction fan. At night, the temperature difference generated by
Implementing strategic measures, like enhancing water storage in reservoirs to bolster power generation during summer droughts, could partially mitigate the adverse effects …
Although hydrological drought in subregion Ⅱ had no significant periodic characteristics, there was still a close relationship between meteorological drought and hydrologic drought at the time scale of 6–14 months (1981–1983), 10–16 months (1985–1987), 6–14 months (1988–1990), 6–16 months (1991–1994), 28–32 months (1994 ...
The theoretical relationship between light and photosynthesis is illustrated by the so-called light response curve. ... it is about the overall societal discourse on solar power generation with GM-PV or agrivoltaic systems, which is strongly related to higher-level discourses such as energy transition and nuclear phase-out as well as the ...
They found insignificant changes in annual solar and wind power generation due to climate change, less than 0.5 % of their average production per decade. ... assessed the relationship between renewable energy droughts, energy storage, and spatially ... during the summer, most regions are likely to experience a decrease in energy drought days ...
In India, both the impact of high and low temperature on PV power generation stability is minimal, as the changes in average and standard deviation are similar (Fig. S5). Russia''s PV power generation stability is most affected by extreme low temperature, for it causes the largest increase in average PV POT, resulting in the maximum change in CV.
Furthermore, drought-tolerant SWE is substitutable for hydropower: less rainfall during a drought is associated with clearer skies and increased solar power generation. For example,...
Although hydrological drought in subregion Ⅱ had no significant periodic characteristics, there was still a close relationship between meteorological drought and hydrologic drought at the time scale of 6–14 …
This was triggered by a host of empirical studies that noted a paucity of research on the relationship between drought and households ... led to crop failure, a reduction in production and diminished power generation …
Extreme hydroclimate events, primarily droughts and floods, have widespread impacts on economic and social development, as well as food security in the Asian monsoon regions.
Complementary nature of drought phenomena for wind, solar, and hybrid plants in India; Fraction of days different regions face energy-drought while the region marked with white boxes (Rajasthan and South India) face energy-drought; Wind, solar, and combined drought is defined as less than 1%, 50% and 25% of maximum generations from respective ...
This study analyzes the performance of solar, wind, and solar-wind hybrid systems in Europe based on eight regional climate models, considering two possible climate …
To understand the characteristics of such a record-breaking drought, it is necessary to investigate the difference between the 2022 summer drought and previous droughts in SWC. Here, we identify the eight driest drought events since 1980 (i.e., 1989, 1990, 1992, 2006, 2009, 2011, 2013, 2022); both the SPEI and precipitation anomalies of each of ...
The WR mainly depended on drought severity rather than drought duration and there was a clear nonlinear response relationship (i.e., power function) between WR and drought severity. The performance indices (i.e., R 2 = 0.92, NSE = 0.97, PBIAS = 13.57%) indicated that the optimal nonlinear function model could accurately simulate the WR of ...
Adding energy storage to systems whose generation is 1.5x annual demand again increases both the system reliability (89–100%, average 98%) and the share of solar generation (most reliable mixes ...
Drought and water scarcity present unique challenges for the energy sector. All sources of energy require water in their production processes, and energy is required to extract, convey, and deliver water. Because energy and water are so interdependent, the availability and predictability of water resources can directly affect energy systems.
As severe drought conditions spread throughout the western United States, Jordan Kern, assistant professor at North Carolina University, discusses the relationship between drought and the power grid.
Potential evapotranspiration (PET) serves as a proxy for estimating actual evapotranspiration (AET) in hydrological model simulations and constitutes an input for drought analyses. Nonetheless, it is elusive how the inclusion of different PET models in a modeling chain, which encapsulates multiple general circulation models (GCMs) operating under varying …
The annual power plant-level reductions range from negligible for the Cambambe power plant (260 MW) in Angola to −5% for the Van der Kloof power plant (240 MW) in South Africa (end-of-the ...
Solar power generation is influenced by sunlight availability, which can vary based on location, time of day, and weather conditions. This variability can lead to inconsistent …
With the growing share of the climate-sensitive renewable energy market supply in China, estimating future energy drought risk (ED) is essential. In this paper, based on …
Renewable energy resources, which depend on climate, may be susceptible to future climate change. Here we use climate and integrated assessment models to estimate this effect on key renewables.
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