Title:	Performance Evaluation of Household Li-Ion Battery Storage Systems
Author(s):	N. Munzke, J. Barry, B. Schwarz
Keywords:	Battery Storage and Control, Lifetime, Storage, System Performance, Batteries
Topic:	Operation, Performance, Reliability and Sustainability of Photovoltaics
Subtopic:	Balance of System Components
Event:	32nd European Photovoltaic Solar Energy Conference and Exhibition
Session:	5AO.9.5
Pages:	1516 - 1521
ISBN:	3-936338-41-8
Paper DOI:	10.4229/EUPVSEC20162016-5AO.9.5
Price:	0,00 EUR
Document(s):	paper

Abstract/Summary:

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The increase in electricity prices along with a decrease in the price of storage systems has led to a rapid expansion of the PV-battery storage system market in German households. In order to be economically viable, PV-storage systems must fulfil certain performance criteria, and the system control strategies as well as the control speed have a large impact on the overall system performance. While the system control software should be regulated in such a way as to maximize the self-supply ratio as well as the battery lifetime, the control speed and strategy has a direct influence on the self-supply ratio and as a consequence on the overall self-sufficiency. An intelligent control strategy also has added benefits for the grid operator. Several commercially available PV-battery systems have been analyzed with respect to these specific performance criteria. The test results presented here provide a representative picture of the current status of the storage system market and offer useful pointers for future system development.