Like a lot of people, I am a big fan of Wal-Mart. I mean where else can I buy groceries, print my digital pictures, get an eye exam, buy a small appliance, and get an oil change at one place all at a reasonable price? And with Wal-Marts popping up all over they place, you have to assume they are doing something right.

Throughout my MBA program, we have used Wal-Mart as a case study several times. They are a study in logistics management and efficiency having employed such tactics as radio frequency ID tags to track their inventory.

However, their latest news is that they plan to begin using solar energy to power some of their operationsin Hawaii and California. Considering their presence across the country, this is a small piece of the pie, but it is definitely a great step forward. In fact, they claim to have plans to be 100% energy supplied by renewable resources.

Way to go Wal-Mart. Keep up the good work. Now if only more companies would follow suit.