Stromtarife und Technologien im Endkundenmarkt und deren Einfluss auf den Leistungsbedarf von Haushalten aus dem Netz

Hayn, Marian; Bertsch, Valentin; Fïchtner, Wolf

doi:10.1007/s00550-014-0338-z

Cited by 2 publications

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“…In this case, households with flexible loads or storage options again have an advantage. Here, peak load-oriented pricing alternatives are feasible (Hayn et al, 2014). The installation of circuit breakers for households with lower load limits (e. g. 16 A or 32 A) compared to today is one possibility.…”

Section: Discussion Of Implications For the German Electricity Systemmentioning

confidence: 99%

Solar energy storage in German households: profitability, load changes and flexibility

2016

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Highlights• Domestic photovoltaics (PV) and storage systems are techno-economically analyzed.• PV & storage are profitable in the medium term due to high self-consumption rates.• Controlled electric vehicle charging improves load flexibility and self-generation.• External procurement of electricity drastically changes and decreases to 48-58 %.• Dynamic tariffs e. g. with load limits or demand charges incentivize load shifting. AbstractThe developments of battery storage technology together with photovoltaic (PV) roof-top systems might lead to far-reaching changes in the electricity demand structures and flexibility of households. The implications are supposed to affect the generation mix of utilities, distribution grid utilization, and electricity price. Using a techno-economic optimization model of a household system, we endogenously dimension PV system and stationary battery storage (SBS). The results of the reference scenario show positive net present values (NPV) for PV systems of approx. 500-1,800 EUR/kW p and NPV for SBS of approx. 150-500 EUR/kWh. Main influences are the demand of the households, selfconsumption rates, investment costs, and electricity prices. We integrate electric vehicles (EV) with different charging strategies and find increasing NPV of the PV system and self-consumption of approx. 70 %. With further declining system prices for solar energy storage and increasing electricity prices, PV systems and SBS can be profitable in Germany from 2018 on even without a guaranteed feed-in tariff or subsidies. Grid utilization substantially changes by households with EV and PV-SBS. We discuss effects of different incentives and electricity tariff options (e. g. load limits or additional demand charges). Concluding, solar energy storage systems will bring substantial changes to electricity sales. Keywordsdemand flexibility; optimization model; tariff design; electric vehicles; controlled charging; battery storage profitability Abbreviations CHP -combined heat and power; EEG -(Erneuerbare Energien Gesetz) Renewable Energy Act; EVelectric vehicle; EV2H -electric vehicle to home; NPV -net present value; PV -photovoltaics; RMSD -root-mean-square deviation; SBS -stationary batteries system; SoC -state of charge; ToU -time of use; UoSC -use of system charge

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Section: Discussion Of Implications For the German Electricity Systemmentioning

confidence: 99%

Solar energy storage in German households: profitability, load changes and flexibility

2016

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“…Scenarios 3 and 4 are based on the high tariff price per kilowatt-hour for large customers with a consumption of over 100,000 kWh in Germany. In scenario 2, the price per kilowatt-hour is reduced up to 30 % compared to scenarios 3 and 4 due to the low tariff electricity purchase [19][20][21]. Due to dynamic start-up and shut-down processes of flexible power plants, i.e.…”

Section: The Total Costs Of Ownership and Total Costs Of Mobility Analysismentioning

confidence: 99%

Sustainable Concept and Economic Evaluation of a Solar-Powered Hydrogen Generation Unit

Langenbucher

Brodecki²,

Wiesmeth³

et al. 2020

Adv. Mater. Lett.

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Stromtarife und Technologien im Endkundenmarkt und deren Einfluss auf den Leistungsbedarf von Haushalten aus dem Netz

Cited by 2 publications

References 7 publications

Solar energy storage in German households: profitability, load changes and flexibility

Solar energy storage in German households: profitability, load changes and flexibility

Sustainable Concept and Economic Evaluation of a Solar-Powered Hydrogen Generation Unit

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