Renewable energy: The 99.9 per cent solution
from Renew Economy
A combination of wind and solar power and sophisticated energy storage systems could keep a power grid fully supplied between 90 and 99.9 per cent of the time, at costs comparable with today's fossil fuel and nuclear mix, according to a new study from Delaware in the United States. Computer simulation measured the performance of inland and offshore wind farms and photovoltaic cells, backed up by battery and fuel cell storage, under the lowest cost conditions, for a 72 gigawatt grid system.
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