Peak shifting and cross-class subsidization: The impacts of solar PV on changes in electricity costs

Johnson, Erik P.; Beppler, Ross C.; Blackburn, Chris; Staver, Benjamin; Brown, Marilyn A.; Matisoff, Daniel C.

doi:10.1016/j.enpol.2017.03.034

Cited by 47 publications

(33 citation statements)

References 10 publications

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“…However, at the 10% and 20% solar penetration levels under abundant solar resource conditions, LP3, which had a higher positive solar load correlation coefficient than LP4, Moreover, LP1 (with the highest positive solar load correlation coefficient) exhibited the worst generation costs, characterized by surges in most cases. Studies have shown that the absorption of solar power can shift peak loads to other periods of the day when solar power diminishes [2,15]. This possible load shift might have exacerbated the already existing peak at 20 h, making it impossible for the dispatchable generation units to ramp up to meet the rising load demand from 19 h to 20 h and violating the supply-demand balance requirement.…”

Section: Resultsmentioning

confidence: 99%

“…Several studies have shown that the penetration of variable RE sources such as solar PV into power systems significantly alters the original load characteristics [15][16][17][18]. In this regard, Asare-Bediako et al [17] showed that the high penetration of solar PV contributed to the deviation of load profiles from classical patterns.…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, Asare-Bediako et al [17] showed that the high penetration of solar PV contributed to the deviation of load profiles from classical patterns. Johnson et al [15] revealed that the high penetration of solar PV altered the initial load peak hours and, consequently, the distribution of power cost among various classes of electricity consumers. Additionally, the study in Ref.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of Daytime Peak Loads to Improve the Power Generation Costs of Solar-Integrated Power Systems

Afonaa-Mensah

Wang

Uzoejinwa

2019

International Journal of Photoenergy

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Improving daytime loads can mitigate some of the challenges posed by solar variations in solar-integrated power systems. Thus, this simulation study investigated the different levels of daytime peak loads under varying solar penetration conditions in solar-integrated power systems to improve power generation cost performance based on different load profiles and to mitigate the challenges encountered due to solar variation. The daytime peak loads during solar photovoltaic generation hours were determined by measuring the solar load correlation coefficients between each load profile and the solar irradiation, and the generation costs were determined using a dynamic economic dispatch method with particle swarm optimization in a MATLAB environment. The results revealed that the lowest generation costs were generally associated with load profiles that had low solar load correlation coefficients. Conversely, the load profile with the highest positive solar load correlation coefficient exhibited the highest generation costs, which were mainly associated with violations of the supply-demand balance requirement. However, this profile also exhibited the lowest generation costs at high levels of solar penetration. This result indicates that improving daytime load management could improve generation costs under high solar penetration conditions. However, if the generation system lacks sufficient ramping capability, this technique could pose operational challenges that adversely impact power generation costs.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation of Daytime Peak Loads to Improve the Power Generation Costs of Solar-Integrated Power Systems

Afonaa-Mensah

Wang

Uzoejinwa

2019

International Journal of Photoenergy

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“…For example, mitigation policies that raise the price of electricity and heating fuel by promoting renewable energy may disproportionately increase energy cost burdens of low-income households (Johnson et al 2017). Similarly, programs designed to address these burdens may only be accessible to certain populations in Georgia.…”

Section: Resultsmentioning

confidence: 99%

Climate research priorities for policy-makers, practitioners, and scientists in Georgia, USA

Rudd

Moore

Rochberg

et al. 2018

Environmental Management

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Climate change has far-reaching effects on human and ecological systems, requiring collaboration across sectors and disciplines to determine effective responses. To inform regional responses to climate change, decision-makers need credible and relevant information representing a wide swath of knowledge and perspectives. The southeastern U. S. State of Georgia is a valuable focal area for study because it contains multiple ecological zones that vary greatly in land use and economic activities, and it is vulnerable to diverse climate change impacts. We identified 40 important research questions that, if answered, could lay the groundwork for effective, science-based climate action in Georgia. Top research priorities were identified through a broad solicitation of candidate research questions (180 were received). A group of experts across sectors and disciplines gathered for a workshop to categorize, prioritize, and filter the candidate questions, identify missing topics, and rewrite questions. Participants then collectively chose the 40 most important questions. This cross-sectoral effort ensured the inclusion of a diversity of topics and questions (e.g., coastal hazards, agricultural production, ecosystem functioning, urban infrastructure, and human health) likely to be important to Georgia policy-makers, practitioners, and scientists. Several cross-cutting themes emerged, including the need for long-term data collection and consideration of at-risk Georgia citizens and communities. Workshop participants defined effective responses as those that take economic cost, environmental impacts, and social justice into consideration. Our research highlights the importance of collaborators across disciplines and sectors, and discussing challenges and opportunities that will require transdisciplinary solutions.

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“…Utilities have faced the perspective that customers will reduce their electricity purchases as they adopt solar photovoltaic generation and may enter a positive feedback loop (spiral of death) [17]. Finding financial balance can be a problem, as consumers subsidize solar energy adopters, who transfer costs to other network participants [18]. It should be noted that distributed generation challenges the very nature of the natural monopoly of electricity distribution concessionaires.…”

Section: Introductionmentioning

confidence: 99%

Factors for Measuring Photovoltaic Adoption from the Perspective of Operators

et al. 2020

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The diffusion of photovoltaic distributed generation is relevant for addressing the political, economic, and environmental issues in the electricity sector. However, the proliferation of distributed generation brings new administrative and operational challenges for the sustainability of electric power utilities. Electricity distributors operate in economies of scale, and the high photovoltaic penetration means that these companies have economic and financial impacts, in addition to influencing the migration of other consumers. Thus, this paper aims to systematically identify and evaluate critical factors and indicators that may influence electricity distributors in predicting their consumers' adoption of photovoltaic technology, which were subjected to the analysis of 20 industry experts. Results show that the cost of electricity, generation capacity, and cost of the photovoltaic systems are the most relevant indicators, and it is possible to measure a considerable part of them using the internal data of the electricity distributors. The study contributes to the understanding of the critical factors for the forecast of the adoption of consumers to distributed photovoltaic generation, to assist the distribution network operators in the decision making, and the distribution sustainability. Also, it establishes the theoretical, political, and practical implications for the Brazilian scenario and developing countries.

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Peak shifting and cross-class subsidization: The impacts of solar PV on changes in electricity costs

Cited by 47 publications

References 10 publications

Investigation of Daytime Peak Loads to Improve the Power Generation Costs of Solar-Integrated Power Systems

Investigation of Daytime Peak Loads to Improve the Power Generation Costs of Solar-Integrated Power Systems

Climate research priorities for policy-makers, practitioners, and scientists in Georgia, USA

Factors for Measuring Photovoltaic Adoption from the Perspective of Operators

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