Fetzer Vineyards is installing a solar power system at its Californian headquarters.

The Brown-Forman-owned winemaker will start construction next month on the system, which, it is hoped, will provide 1.1m kilowatt hours of electricity a year.

"It fits in with everything we do here," said Susanne Zechiel, Fetzer Vineyard's manager of facility resources. "After the new panels are built, we will have enough energy being generated to produce 80% of the bottling plant's electricity needs."

In 1999, Fetzer installed its first run of solar panels, which produced energy for the administration building. The new panels will cover the roof of the bottling facility and 'barrel room'.