In 2022, Evotec embarked on a transformative journey by committing to the Science Based Targets initiative (SBTi) Net Zero strategy.
This ambitious plan aligns with a 1.5°C trajectory and includes the following key targets:
- 50% Reduction in Scope 1 and 2 GHG Emissions by 2032: From a 2021 baseline, Evotec aims to halve its greenhouse gas emissions.
- 100% Renewable Electricity by 2026: Transitioning to fully renewable electricity sources.
- Switching to Renewable Heating: Moving from natural gas to renewable electricity for heating.
- Energy Efficiency Improvements: Reducing electricity intensity per square meter and transitioning to low Global Warming Potential (GWP) refrigerants.
These initiatives are crucial steps towards Evotec’s goal of achieving Net Zero by 2045.
Figure 1 - Evotec's Scope 1 and 2 sustainability targets
Thermal Assessment and Efficiency Projects
In the same year, Armstrong International conducted a Thermal Assessment study at Evotec’s Verona plant. The study aimed to optimize primary energy consumption and reduce emissions. Armstrong’s engineering team, in collaboration with Evotec’s Facility and Sustainability department, analyzed thermal load data to identify potential efficiency projects.
The focus was on the utilities area, specifically the production of hot water using a steam exchanger. By analyzing thermal load profiles and the energy availability from evaporative cooling towers, the team identified the optimal size for a new heat pump. This innovative approach allows the use of waste heat as a source for the heat pump, significantly reducing natural gas consumption.
Figure 2 - Right sizing through heat load analysis [kWt]
Cutting-Edge Heat Pump Technology
The Armstrong+Combitherm industrial heat pump, equipped with a twin-screw compressor and using R1234ze refrigerant (GWP = 7), was chosen for its low environmental impact. The heat pump operates at a high efficiency with a COP (coefficient of performance) of 4.6 at full capacity and features noise reduction technology to comply with local regulations.
Figure 3 - New heat pump
Figure 4 - Estimated project energy and emissions savings
Project Outcomes and Sustainability Impact
The project, completed on a turnkey basis by Armstrong, is expected to save 1,604 tons of CO2 and approximately 760,000 cubic meters of natural gas annually. Additionally, through CO.EN’s consultancy as an Energy Saving Company (ESCo), Evotec secured “white certificates” for five years, amounting to around 357 certificates per year, equivalent to €89,000 annually.
Figure 5 - Natural gas consumption data after heat pump start-up
A Holistic Approach to Decarbonization
Armstrong’s Circular Thermal® and Pinch analysis methodologies provide a comprehensive decarbonization roadmap. This approach ensures the best integration of available technologies, guaranteeing significant reductions in primary energy consumption and emissions.
Evotec and Armstrong International’s partnership exemplifies a shared vision for sustainability, with a clear focus on achieving decarbonization targets through innovative engineering and strategic planning.