There are several power companies in Germany that are offering 100% green power after X years, in the sense that they're committing to constructing or buying ne

There are several power companies in Germany that are offering 100% green power after X years, in the sense that they're committing to constructing or buying new green power plants with a generating capacity at least as high as the amount sold X years ago. The actual power from your outlet is going to be the same no matter which company you buy from, but it's still buying "green power" in a more meaningful way than a zero-sum relabeling.