How Novozymes reduces its CO2 emissions

Novozymes has set ambitious targets for improving its operational eco-efficiency.

With growing constraints on global resources, Novozymes is dedicated to optimizing its operations year on year, so as to reduce the consumption of natural resources and mitigate the negative environmental impact of its production processes.

Novozymes is committed to reducing CO2 emissions and being part of the solution to the world’s climate change problems. Please see Novozymes’ Position Paper on Global Warming.

Looking at the full period from 2009-14, Novozymes has successfully managed to decouple CO2 emissions from business growth. In the same period, the company improved its CO2 efficiency from 38% to 56%, compared with 2005 levels. This achievement was largely been driven by two levers – improving energy efficiency and investing in renewable energy.

Improving energy efficiency
Between 2009 and 2014, Novozymes has invested roughly 137 million DKK in 188 energy-saving projects throughout its operations, resulting in emission reductions of approximately 100,000 metric tonnes of CO2e and annual cost savings of 84 million DKK. These include projects related to heat recovery in various processes, boiler replacements, utility system optimizations, equipment upgrades for energy efficiency, and improvement of controls of equipment and processes.

Investing in renewable energy
Novozymes currently purchases 23% of its global energy mix from renewable sources. In 2011, Novozymes took a significant decision to purchase 100% of its electricity in Denmark from wind power.

Novozymes and the Danish energy company DONG Energy entered into partnership in 2008 to invest in Horns Rev II, one of the world’s largest offshore wind farms. Horns Rev II has increased the production of electricity in Denmark based on wind power. Novozymes’ consumption constitutes over 30% of the total electricity generated by the wind farm.


Case examples of reducing CO2 emissions


 A video on minimizing CO2 in production


Additionally, in 2013, Novozymes established mechanisms to generate energy from biomass at three production sites. Through these mechanisms, biomass is converted to biogas, which is then used to generate heat or steam (reused within our production sites) and electricity (supplied to the grid). There are several possibilities for utilization of the biogas and transforming wastewater into energy will in time be rolled out globally to our other plants in the world.

To continue Novozymes’ path to decarbonization, the company adopted new long-term targets for 2020, related to climate change:

  • 1. Reduce CO2 intensity of our operations by 25%, compared with a 2014 baseline,
  • 2. Improve energy efficiency of our operations by 30%, compared with a 2014 baseline,
  • 3. Increase sourcing of renewable energy to 30% of total energy consumption.


For more information on the company’s latest performance and new operational eco-efficiency targets, please see our Novozymes Annual Report 2014.