For my renewable wind energy card! I asked for something green for Christmas and, being that they are from the eco-friendly state of Colorado, they knew what the heck I was talking about so I got one of these:
Which means this:
This is a renewable certificate product. For every unit of renewable electricity generated, an equivilent [sic] amount of renewable certificates is produced. The purchase of renewable certificates supports renewable electricity generation, which can help offset conventional electricity generation in the region where the renewable generator is located. You will continue to receive a separate electricity bill from your utility. This product matches up to 100% of your estimated electricity usage. The product will be made up of the following new renewable resources averaged annually.
The site also did the math for me and, according to them, Chad and Erin offset my annual mileage by 1,116 miles, which is, coincidentally, happens to be almost exactly how many miles it is from our house to theirs! I like the subtle hint!