By the numbers: the 2012 plug-in Prius

Over six days of driving—limited to around-town trips—we put about 103 miles on a fleet-test Toyota Prius Plug-In, averaging 90.8 miles per gallon. In that time, we gave the Prius Plug-In five full charges and two partial ones, and according to the trip computer, we covered 77.7 miles in EV mode.

On the GreenBeat: A123 opens battery plant, Siemens targets India

A123 opens largest lithium-ion battery plant in the U.S. The Livonia, Mich. plant will expand the company’s manufacturing capabilities by up to 600 megawatt-hours per year, with the goal of ramping up to a total 760M megawatt-hours by next year’s end. The announcement comes one year after A123 was awarded a $249 million grant as part of the American Recovery and Reinvestment Act. As GigaOm notes, A123’s IPO last year opened at $17 per share but now trades at less than $10 per share. Another Michigan-based battery player, Sakti3, made news last week for winning a $3.2 million investment from the venture capital arm of GM.