The cost of lithium-ion battery storage could be on track to fall from $10,000 per kilowatt-hour in the early 1990s to $100/kWh in 2019, according to a University of California/TU Munich study published in the journal Nature Energy. The dramatic cost reduction would be enough to make solar, wind, and storage projects cost-competitive with coal and natural gas on price alone. The achievement, however, may be endangered by a recent lack of investment for basic and applied research, particularly in the United States. Scientists have concluded that long-term R&D spending and innovation is crucial to cost reductions.
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