Scotland Awards Contracts to Make Electricity from Whiskey
on 09/05/11 at 4:43 pmBooze News
Contracts have recently been awarded for the construction of a biomass combined heat and power plant at Rothes in Speyside that by 2013 will use the by-products of the whiskey-making process for energy production.
Vast amounts of “draff,” the spent grains used in the distilling process, and pot ale, a residue from the copper stills, are produced by the whiskey industry each year and are usually transported off-site.
The Rothes project, a joint venture between Helius Energy and the Combination of Rothes Distillers (CoRD) will burn the draff with woodchips to generate enough electricity to supply 9,000 homes. It will be supplied by Aalborg Energie Technick, a Danish engineering company. The pot ale will be made into a concentrated organic fertilizer and an animal feed for use by local farmers.
Environmentalists have expressed concern that some of the wood used in the process may not be locally sourced, but say the 7.2 megawatt project — the equivalent output of two large wind turbines — is a good scale and a valuable addition to Scotland’s renewables industry.