Energy and Emissions
At MillerCoors, we are rising to the challenge of meeting our energy usage goals. We are reducing our energy consumption, exploring new opportunities to use renewable energy sources and shrinking our carbon footprint. We are on target to reduce our overall energy usage by 15 percent across our eight major breweries by 2015.
New Calculation Method, Same Goal
Our parent company SABMiller plc adopted the Greenhouse Gas Protocol Initiative method for reporting total energy usage and fossil fuel emissions for more transparent and consistent global reporting. This method was derived from the Intergovernmental Panel on Climate Change established by the U.N. Environment Programme and the World Meteorological Organization. Starting in 2011, we adopted this new method for calculating energy usage, which necessitated the recalculation of our 2008 baseline and 2015 target.
After accounting for fuel used by vehicles on the brewery sites and for inefficiencies from using wastewater-derived biogas to produce electricity, we have calculated a new 2015 target of 137 megajoules (MJ) of energy to brew one hectoliter (hl) of beer. This represents a 15 percent reduction from a 2008 baseline of 161 MJ/hl. Although our method for calculating energy usage has changed, our goal has not — we still aim to reduce our overall energy usage by 15 percent across our eight major breweries by 2015.
In 2011, we reduced energy usage across our eight major breweries to 154 MJ/hl, a 4.3 percent decline from our 2008 baseline. We have established detailed plans for both operational improvements and engineered solutions to continue progress toward our 2015 goal.
Reducing Our Energy and Emissions
Environmental stewardship means developing new ways to reduce energy consumption, minimize our greenhouse gas emissions and use alternative energy sources.
Electric vehicle charger: In 2011, we installed an electric vehicle charger at our Irwindale Brewery to give employees the option to commute to work emissions-free.
Renewable energy from wastewater: MillerCoors uses wastewater as a source of renewable energy. At our Irwindale, Fort Worth and Shenandoah Breweries, we generate biogas from wastewater. We use the biogas in place of fossil fuels to power our boilers and to generate electricity.
Cool roof coating: On approximately 500,000 square feet of the packing hall roof at our Albany Brewery, we applied a white coating that reflects 87 percent of the sun’s rays. This “cool roof” coating makes the building interior cooler and more comfortable for our employees and reduces the amount of energy needed to operate air handling units and other motors in the building.
Heating and air conditioning improvements: By using new controls and more efficient pumps in our heating and air conditioning equipment at our Golden Brewery, we reduced energy usage by 0.28 MJ/hl while maintaining comfort levels in our occupied areas.
Hybrid security vehicles: In 2011, we converted seven security vehicles from conventional gas to hybrid vehicles at our Albany, Eden, Fort Worth, Irwindale, Milwaukee and Trenton Breweries. The seven hybrid vehicles reduce our fuel consumption by more than 1,300 gallons each year.
Efficient refrigeration compressors: At our Milwaukee and Golden Breweries, we improved our energy usage through more efficient use of refrigeration compressors. At the Milwaukee Brewery, we installed new, more efficient refrigeration compressors. At the Golden Brewery, we optimized our existing refrigeration compressors and reduced our energy usage by 12.7 MJ/hl. We are continuing work in 2012 to identify the specific energy requirements for each piece of equipment at the Golden Brewery so we further reduce future energy usage.
Cutting Our Carbon Footprint
At MillerCoors, we are working to reduce our greenhouse gas emissions from our brewery operations and the energy sources that support those operations. By improving our energy efficiency, we also reduce our greenhouse gas emissions. We are evaluating alternative energy sources and plan to increase our use of biogas from brewery wastewater treatment.
Success at Rocky Mountain Bottle Company
Through our partnership with Owens Illinois Inc., Rocky Mountain Bottle Company manufactures glass bottles in Wheatridge, Colo. The bottle plant installed lighting upgrades to save energy and achieved a 2 percent energy reduction in 2011.