Using responsible practices to conserve and create energy
We collect and report data on electricity and fuel use from our facilities worldwide. Our facilities track diesel fuel, propane, fuel oil and natural gas. Gasoline consumption is tracked for our sales fleet. The majority of the fuel consumed by our facilities is natural gas, which is cleaner burning than fuel oils. In addition to the fuel used on-site by our facilities (categorized as Scope 1 direct energy use), we also track indirect energy (Scope 2), which includes electricity purchased by Bristol-Myers Squibb. Energy from business-related air travel (Scope 3) is based on fuel consumption for short, medium, and long haul flight segments. Our total energy use decreased one percent between 2013 and 2015, with a decrease of less than one percent when normalized by sales.
Our Sustainability 2015 Goals included reducing total energy use by 15 percent from a 2009 baseline (excluding acquisitions – see footnote on Key Performance Indicators table). We have decreased total energy use by 13.1 percent absolute through 2015.
We have established a Director, Global Energy Service position, with worldwide responsibility, and we maintain an energy management system. The corporate Environment, Health, and Safety department reviews this program annually. Program objectives are supported by a number of other company initiatives that address energy issues, including our EHS Policy, review of capital investments and acquisitions for EHS impacts, and green chemistry reviews. As a result, our new facilities make use of state-of-the art, energy-efficient technologies.
Cruiserath, Ireland facility has reduced energy consumption from 2009 to 2015 by over 55 million kWh (23%) versus 2009 actual usage, giving us an estimated carbon footprint reduction in excess of 12,000 metric tons. Examples of the innovations introduced are:
- Reductions in building air change rates
- Changeover to the use of “cold” standby boilers
- Modifications on incinerator burners to increase gas efficiency
- Installation of variable speed drives on large site motors
The Wallingford, Connecticut facility—a one million square-foot pharmaceutical research and development center situated on 180 acres—requires large amounts of energy. The facility constructed a combined heat and power (CHP) plant that uses clean-burning natural gas and incorporates a waste heat boiler as a heat recovery system. The CHP system operates at approximately 72 percent efficiency, more than double the estimated average efficiency rate of the U.S. electric system. The CHP system, which recovers heat from the gas turbine to make steam for heating the complex during the winter months, has reduced greenhouse gas emissions at the Wallingford facility by approximately 20 percent—or about 6,600 metric tons per year.
Currently, several of our facilities around the world have systems that generate electricity on site, including:
- Hopewell, New Jersey
- New Brunswick, New Jersey
- Wallingford, Connecticut
- Anagni, Italy
Some of these locations have cogeneration facilities on site. Cogeneration produces electricity plus steam or hot water for site operations using one fuel (typically natural gas), thereby greatly increasing efficiency and decreasing the site's use of purchased electricity. Additional cogeneration opportunities across the company are currently being evaluated.
Our manufacturing facility in Anagni, Italy installed solar energy photovoltaic systems to provide electricity to its offices and the facility’s wastewater treatment plant. More than 480 square meters of rooftop solar panels provide power and reduce greenhouse gas emissions. The solar panels produced about 47,000 kilowatt-hours of energy in 2015, which correlates to a greenhouse gas reduction of 18,600 kilograms per year.
At our onsite child development center in Hopewell, New Jersey, we installed a solar photovoltaic system that has generated approximately 622,144 kilowatt hours of energy and reduced carbon dioxide emissions by more than 437 metric tons since start-up in late 2004. Also in Hopewell, we installed a solar photovoltaic system on the roof of our parking deck that has generated approximately 1,895,000 kilowatt hours of energy and reduced carbon dioxide emissions by more than 1,332 metric tons since start-up in early 2014.
In 2015, our facilities generated 3.4 million gigajoules of energy onsite, and an additional 4,100 gigajoules through renewable energy sources.