Amazon (AMZN.US) plans to introduce new components to address the power consumption of its data centers

Amazon.com's (AMZN.US) cloud division is launching components it says will improve the efficiency of its data centers, which could help alleviate the growing pressure on the power grid from electricity-hungry server farms. AWS's latest data center designs include more efficient cooling, renewable diesel for backup generators and optimized server rack layouts to reduce wasted power, the company said Monday. Some components have already been deployed, while others will arrive at new data centers after they go live. The company is also introducing liquid cooling systems to keep the most powerful chips, from companies such as Nvidia (NVDA.US), running smoothly. Those chips can't be effectively cooled by fans alone. Amazon expects to spend about $75 billion on capital expenditures this year, most of which will go toward servers, chips and cooling systems that power its on-demand computing services. The company is also buying custom chips, including new artificial intelligence products aimed at competing with Nvidia, and expects to announce this week at its re:Invent conference that those chips are now available to customers.