A major telecommunications company and a vineyard are the latest businesses to "go green" in California. MCI WorldCom, one of the three largest companies in the US phone market, has signed up to buy 100% "cleen 'n green" energy-a mix that includes wind power-for its facilities in California. The announcement on September 13 makes MCI WorldCom the largest US commercial customer buying electricity from renewables. Also going green is Fetzer Vineyard of Hopland in northern California, America's sixth largest winery and now the first vineyard anywhere in the world to commit to renewable energy. Fetzer is to buy 100% renewables from PG&E Energy Services-again a mix that includes wind. The vineyard has an annual electricity consumption of 5 million kWh to produce 3.5 million cases of wine. One of the largest producers of organic wine, it is known for its environmental commitment. "This is the latest step towards our goal of total sustainability of our winery," says Fetzer's Paul Dolan.