In a new report, Greenpeace ( says that while Apple is doing a better job ensuring the energy efficiency of its data centers, the company still lags behind some competitors in key areas, reports “CNET.”

Greenpeace says that additional information Apple provided about its facilities in recent months has resulted in improved scores. That includes infrastructure siting, where Apple now has a “D” grade, up from an “F.” Apple also improved from “D” to “C” ratings in energy efficiency and greenhouse gas mitigation, as well as renewable energy investment and advocacy.

In mid-May Apple announced its intention to operate its Maiden, N.C., data center entirely off renewable energy by the end of 2012. Greenpeace praised Apple for the pledge but chided the company for what it says has been a lack of transparency on the road map to reach that goal, notes “CNET.”

In a statement, Apple said it is an industry leader in renewable energy use at its data centers.

“We’re committed to building the world’s most environmentally responsible data centers and are leading the industry in the use of renewable energy, including the nation’s largest private solar arrays and non-utility fuel cell installation,” an Apple spokeswoman told “CNET.” “As we’ve said before, our North Carolina and California data centers will be coal-free as of February 2013 and our newest data centers in Oregon and Nevada will be designed to meet that standard from day one.”

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