I saw today an electric power company (not mine) magazine ad that offered to sell ". . . users 25%, 50%, and 100% wind power usage with monthly charges as low as $2.25."
As an added incentive, the article stated, ". . . purchasing as little as 1,000 kWh of wind power per month for one year is equivalent to removing nine tons of emissions from the air."
I wondered how they could separate the wind power from the rest in the line. Then I realized; it's green, isn't it?