Comparative Study of Battery Storage and Hydrogen Storage to Increase Photovoltaic Self-sufficiency in a Residential Building of Sweden

Zhang, Yang; Lundblad, Anders; Campana, Pietro Elia; Yan, Jinyue

doi:10.1016/j.egypro.2016.11.284

Cited by 36 publications

(21 citation statements)

References 8 publications

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“…In our study, we assumed that the PV panels are installed once and then used for the whole observation period of 20 years. This is consistent with previous studies, all of which assumed a lifetime of 20 years or longer for PV panels [30,32,34,36,39,44]. In addition, the legally guaranteed remuneration period amounts to 20 years [68].…”

Section: Parameter Values Of Core Components Capital Expendituresupporting

confidence: 91%

“…However, some work is limited to the consideration of PV systems only [31,33,37]. Other research which also considers PV and BES models focusses on countries and markets outside Germany, such as Australia [30], Italy [32,34], Sweden [44] and UK [42]. Moreover, previous studies usually only consider one single household size [36] or assume (partially) already installed systems [39].…”

Section: Literature Reviewmentioning

confidence: 99%

“…However, this does not mean that the battery memory is no longer functional after this period of time. Previous studies assume a total lifespan of 20 years or more [32,34,36,44]. This corresponds to the period covered by our study.…”

Section: Parameter Values Of Core Components Capital Expenditurementioning

confidence: 99%

“…Due to a lack of experience to date, reliable values for capacity losses over time are difficult to predict and the only indication is the guarantee provided by various manufacturers (e.g. [79]) that after 10 years at least 80% of the original storage capacity will still be available (compare also [44]). To get an idea of the financial impact of potential capacity losses of the BES system, we examined the effects of an annual capacity loss of up to 2% in a sensitivity analysis.…”

Section: Case 3-capacity Loss Of the Bes Systemmentioning

confidence: 99%

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Optimisation of photovoltaic and battery systems from the prosumer-oriented total cost of ownership perspective

2019

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Background: In the context of the German energy transition, the number of domestic households covering part of their electricity consumption from their own photovoltaic system is constantly increasing. Some even use battery storage systems to store excess power for later use, which increases the degree of self-sufficiency and, according to the providers of such systems, should yield financial advantages for the so-called prosumer. Methods: We used the Prosumer-Oriented Total Cost of Ownership method to analyse the financial possibilities for prosumers under German market conditions, and thus determined the economically optimal solution for different domestic household sizes. In order to obtain realistic results, we applied real data covering the weather (relevant for the generation of electricity), consumption patterns, investment and operating costs, prices and revenues. If behavioural aspects are set aside and pre-requirements (e.g. sufficient roof space) are met, our model provides guidance for investors and policy-makers alike. Results and conclusions: Our research shows that it is financially advantageous for all household sizes to operate the largest photovoltaic system possible for them (up to 10 kW p ). By contrast, our results show that the investment in a battery storage system does not pay off even when government subsidies are taken into account. Regardless of the size of the selected battery storage system and all other influencing variables, the financial advantages of such a system do not materialise, although a battery storage system does substantially increase the self-sufficiency rate.

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Section: Parameter Values Of Core Components Capital Expendituresupporting

confidence: 91%

Section: Literature Reviewmentioning

confidence: 99%

Section: Parameter Values Of Core Components Capital Expenditurementioning

confidence: 99%

Section: Case 3-capacity Loss Of the Bes Systemmentioning

confidence: 99%

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Optimisation of photovoltaic and battery systems from the prosumer-oriented total cost of ownership perspective

2019

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“…Therefore, much effort is needed to reduce battery cost through R&D and mass production. It seems too early to discuss the use of hydrogen storage of electric power, as comparative economic analysis shows that battery storage is much more advantageous than hydrogen at the present stage (Zhang et al 2016). Another, equally challenging problem is the fact that VREs are power sources of non-synchronous generators without any inertia.…”

Section: Power Generationmentioning

confidence: 99%

Towards net zero CO2 emissions without relying on massive carbon dioxide removal

2019

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Current emission scenarios that allow keeping the global temperature increase below 2 °C or even 1.5 °C-as foreseen by the Paris Agreement-are based on very optimistic assumptions, including enormous volumes of carbon dioxide removal (CDR). A closer look at the globally most important emission sectors-power, transport and industry-shows manifold barriers for very ambitious mitigation. A new policy guideline called "Net Zero CO 2 Emissions without relying on massive CDR" and promotion of technological research, in addition to economic incentives and other policy measures, would help to overcome the often simplistic demands for positive modelling results and refocus climate policy on tackling the enormous barriers in key emitting sectors. Such an approach is more aligned with the Paris Agreement's bottom-up logic and therefore more appropriate to make the transformational project of global decarbonization a success.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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A Simple Method for Synthesizing Highly Active Amorphous Iridium Oxide for Oxygen Evolution under Acidic Conditions

Salimi

Najafpour

2020

Chemistry A European J

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Water splitting for hydrogen production has been recognized as a promising approach to store sustainable energy. The performance of this method is limited by the oxygen‐evolution reaction. Herein, an approach for synthesizing a highly active oxygen‐evolving catalyst by a one‐step, low‐cost, environmentally friendly, and easy‐to‐perform method is presented, which works by using iridium metal as the anode at a relatively high potential. The obtained IrOx/Ir interface showed an overpotential of 250 mV at 10 mA cm−2 in 0.1 m HClO4 and remained stable under electrochemical conditions. The IrOx that was mechanically separated from the surface of IrOx/Ir metal after operation showed a threefold increase in activity compared to the current benchmark IrO2 catalyst. Various characterization analyses were used to identify the structure and morphology of the catalyst, which suggested nanosized, porous, and amorphous IrOx on the surface of metallic Ir. This synthetic approach can inspire a variety of opportunities to design and synthesize efficient metal oxide‐based electrocatalysts for sustainable energy conversion and utilization.

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Comparative Study of Battery Storage and Hydrogen Storage to Increase Photovoltaic Self-sufficiency in a Residential Building of Sweden

Cited by 36 publications

References 8 publications

Optimisation of photovoltaic and battery systems from the prosumer-oriented total cost of ownership perspective

Optimisation of photovoltaic and battery systems from the prosumer-oriented total cost of ownership perspective

Towards net zero CO2 emissions without relying on massive carbon dioxide removal

A Simple Method for Synthesizing Highly Active Amorphous Iridium Oxide for Oxygen Evolution under Acidic Conditions

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