Effects of Deep Reductions in Energy Storage Costs on Highly Reliable Wind and Solar Electricity Systems

Tong, Fan; Yuan, Mengyao; Lewis, Nathan S.; Davis, Steven J.; Caldeira, Ken

doi:10.1016/j.isci.2020.101484

Cited by 38 publications

(33 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Energy storage is expected to be capable of redistributing solar power collected during the day to the nighttime hours (Albertus et al, 2020), however, storage costs would need to come down roughly two orders of magnitude in order to allow for near 100% renewable electricity systems to cope with longer term variability in the wind and solar resource, while keeping system costs near their current levels (Sepulveda et al, 2018;Tong et al, 2020).…”

Section: Challenges Associated With Wind and Solar Variability Electricity Demanded Bymentioning

confidence: 99%

Meteorology and Climatology of Historical Weekly Wind and Solar Power Resource Droughts over western North America in ERA5

Brown

Farnham

Caldeira

2021

Preprint

Self Cite

View full text Add to dashboard Cite

Wind and solar electricity generation is projected to expand substantially over the next several decades due both to rapid cost declines as well as regulation designed to achieve climate targets. With increasing reliance on wind and solar generation, future energy systems may be vulnerable to previously underappreciated synoptic-scale variations characterized by low wind and/or surface solar radiation. Here we use western North America as a case study region to investigate the historical meteorology of weekly-scale “droughts” in potential wind power, potential solar power and their compound occurrence. We also investigate the covariability between wind and solar droughts with potential stresses on energy demand due to temperature deviations away human comfort levels. We find that wind power drought weeks tend to occur in late summer and are characterized by a mid-level atmospheric ridge centered over British Columbia and high sea level pressure on the lee side of the Rockies. Solar power drought weeks tend to occur near winter solstice when the seasonal minimum in incoming solar radiation co-occurs with the tendency for mid-level troughs and low pressure systems over the U.S. southwest. Compound wind and solar power drought weeks consist of the aforementioned synoptic pattern associated with wind droughts occurring near winter solstice when the solar resource is at its seasonal minimum. We find that wind drought weeks are associated with high solar power (and vice versa) both seasonally and in terms of synoptic meteorology, which supports the notion that wind and solar power generation can play complementary roles in a diversified energy portfolio at synoptic spatiotemporal scales over Western North America.

show abstract

Section: Challenges Associated With Wind and Solar Variability Electricity Demanded Bymentioning

confidence: 99%

Meteorology and Climatology of Historical Weekly Wind and Solar Power Resource Droughts over western North America in ERA5

Brown

Farnham

Caldeira

2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…It addresses a decentralized power sharing management policy with regard to the impact of dissimilar transmission line impedances on low voltage DC-MG [42]. As the DC MG is combined with the AC grid using a bidirectional AC to AC converter, the scattered source output currents are used as fallows in (5) to test the cable resistances.…”

Section: Modified Decentralized Droop Control Strategiesmentioning

confidence: 99%

“…Traditional energy consumption methods and power supply models have brought huge driving forces and economic benefits to social development, but have also caused serious environmental pollution problems [4]. In order to prevent drastic climate change from causing harm to humans, how to use wind energy, solar energy and other renewable energy to generate electricity and reduce fossil energy consumption is the key to transforming the energy structure and achieving sustainable economic development and is the future direction of development of the power industry [5]. Based on these issues, the development of DG has become a necessary way to solve the environmental issues.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review on Control Techniques for Power Management of Isolated DC Microgrid System Operation

et al. 2021

View full text Add to dashboard Cite

The present research investigations in power management fraternity are focused towards the realization of smart microgrid (MG) technologies. Due to intrinsic advantages of Direct Current (DC) system in terms of compatibility with power generation sources, modern loads and storage devices, DC MG has becoming popular over Alternate Current (AC) system. A secondary voltage and current control schemes of DC MG system are mainly based on the distributed consensus control of Multi-agent system (MAS) to balance generation and the demand. The basic concern of the cooperative control of MAS is consensus, which is to design a suitable control law such that the output of all agents can achieve synchronization. The distributed consensus algorithm requires much less computational power and information exchange in between the neighbor's agent. Meanwhile the other controllers such as model predictive control (MPC) requires accurate dynamic models with high computational cost and it suffers from lack of flexibility. The hierarchical consensus control technique is classified into three levels according to their features, namely primary, secondary, and tertiary. MAS is a popular distributed platform to efficiently manage the secondary control level for synchronization and communication among the power converters in autonomous MGs. In this article, various primary control techniques for local voltage control, voltage restoration in the secondary control level and tertiary control for energy management techniques are discussed. With this, the key emphasis to reduce the voltage deviation and disturbances in a heterogeneous DC MG network solutions are discussed. Furthermore, to analyze the system response and the charging and discharging characteristics of the battery unit, the developed second order heterogeneous consensus controller is compared with the traditional homogeneous consensus control and droop control methods. Finally a detailed discussion on simulation case study using heterogeneous consensus control method over the traditional methods are provided using MATLAB/Simulink platform.

show abstract

“…include back-up generation, expansion of national grid transmission infrastructure, time-of-use management, and inclusion of appropriate energy storage system (ESS) Margolis, 2007a, 2007b;Solomon et al, 2016;Hirth, 2013;Ma et al, 2015;Fyke, 2019;Tong et al, 2020;Ahmed et al, 2021). These can substantially affect the energy supplying cost, especially for off-grid RES.…”

Section: Accessmentioning

confidence: 99%

Quantifying techno-economic indicators' impact on isolated renewable energy systems

Javed

Ma²,

Mousavi

et al. 2021

iScience

View full text Add to dashboard Cite

Addressing climate change with the rising global energy usage necessitates electricity sector decarbonization by rapidly moving toward flexible and efficient off-grid renewable energy systems (RESs). This paper analyzes the wind and solar micro-grids, with batteries and pumped hydro storage for a robust off-grid RES techno-economic operation, while considering diverse multi-objective optimization cases. This research has considered the RES variable operational losses in the developed methodology and relations between different indicators are evaluated, revealing a basic understanding between them. The results reveal that the reliability index is inversely related to the oversupply index, while directly related to the system self-sufficiency index. The cost of energy is more sensitive to technical indicators rather than the storage cost and so can be used as a primary monetary index. Energy and cost balance analysis showed that 16%-20% of the used energy was drained in RES operational losses, which were usually ignored in previous studies.

show abstract

Effects of Deep Reductions in Energy Storage Costs on Highly Reliable Wind and Solar Electricity Systems

Cited by 38 publications

References 48 publications

Meteorology and Climatology of Historical Weekly Wind and Solar Power Resource Droughts over western North America in ERA5

Meteorology and Climatology of Historical Weekly Wind and Solar Power Resource Droughts over western North America in ERA5

A Comprehensive Review on Control Techniques for Power Management of Isolated DC Microgrid System Operation

Quantifying techno-economic indicators' impact on isolated renewable energy systems

Contact Info

Product

Resources

About