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Hitachi and Demansys to demo CrystEna Energy Storage System for grid frequency regulation and capacity services

Green Car Congress

Recently, regulators, grid operators, utilities, and research organizations have projected the need for additional grid storage systems to help ensure reliable power system operation as an increasing percentage of intermittent energy sources, such as wind and photovoltaic power generation, are brought on-line.

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Toyota introduces 2012 Prius Plug-in Hybrid

Green Car Congress

The production plug-in hybrid has a number of key changes from the 125 prototype demo units that were deployed in the field for testing and customer feedback. The demo units defaulted to EV mode. The current Prius had received more wind tunnel hours of testing than any other Toyota in history. L/100km equivalent and 4.8

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