In order to power many of the features it provides, Apple builds energy-sucking data centers. It has established a clean energy initiative, with plans to power several of its data centers with 100% renewable energy created by the company and locally procured. This past spring, Apple announced that it was building a 20-MW solar farm to help power its data center in Maiden, North Carolina. After construction was completed, it bought another 200 acres of nearby land to build an additional 20-MW solar farm, according to reports. The facility also contains a 5-MW biogas-powered fuel cell installation. Apple claims that it intends to power two additional data centers with renewable energy by early 2013.
Apparently Apple is not settling with its current renewable procurement methods. This week, Apple Insider reported a wind energy storage patent that the company hopes will help mitigate renewable energy intermittency issues. The patent describes the technology as converting the friction from rotating turbine blades into heat. This heat is then stored in a “low-heat-capacity” fluid, such as mercury or ethanol. When wind is at a lull and more energy is necessary, the stored heat can then be transferred to a “working fluid” that is brought to a boil to create steam. The steam is then directed to a turbine that is connected to a generator.

The patent claims that the storage method can reduce costs caused by intermittency and reduce dependence on fossil fuel backup energy. Whether Apple will move forward with the patent isn’t clear, but it is apparent that the company is getting serious about renewable energy solutions.

An additional patent unveiled this week is more on the gadget side. Apple is busy inventing methods to integrate solar power into devices. The patent outlines the technology as either an accessory that can be attached or manufactured into the back of a laptop. It is engineered to harness the sun to power backlight displays, which can enhance battery life and reduce energy usage. According to reports, Apple is considering the use of solar cells for this technology.
Lead image: Andrey Bayda via Shutterstock
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Take the solar laptop. Someone is going to sit out in the sunshine and strain to see their screen while charging their batteries?
And they're going to buy solar panels and toss them away in 3-4 years when they're done with the laptop?
Buy a solar panel and enough cord to reach outside. Better yet, install solar panels on the roof and let them power the grid for 30, 40, 60 or more years.