Prominent winery going green

At Shafer vineyards, one of Napa valley's premier wineries, grape growing just isn't what it used to be. Back then, the idea of a beautiful vineyard was nothing but dirt, just flat as a pool table.

Doug Shafer enjoys showing off the overgrown vine rows, instead of herbicides, Shafer plants clover, oats, peas and mustard as a natural way to control weeds. These plants also become a natural fertilizer, helping add essential nutrients to the soil.

Shafer says, "We're making a more natural product here and we're making better wines." To control the population of rodents attracted to the clover crops, Shafer has a chemical-free solution.

Shafer also enlists the help of hawks and barn owls in order to control rodents. He put perches in his vineyard to help the birds find the moles and gophers.

But one of the most striking features of the vineyard is the vast array of solar panels, covering the many roofs and hills that help Shafer reduce its energy consumption. They used to pay $40,000 to $50,000 a year on power, and now pay $1,500 hundred dollars.