Sustainability Environment & Products

Environmental and Energy Management

As a software manufacturer with a minimal environmental footprint, PSI relies on sustainable and resource-efficient technologies in its own business processes. In Germany, PSI sources electricity from renewable sources and utilizes combined heat and power generation at its Aschaffenburg site. 

PSI has participated in the Carbon Disclosure Project (CDP) since 2011 and achieved a Climate Change Score of C and a Supplier Engagement Assessment Score of B- in 2025.

Environmental Management

Preserving resources and improving energy efficiency are key factors for sustainable development. By operating an Environmental Management System in accordance with DIN EN ISO 14001 at its Aschaffenburg site, PSI is clearly committed to achieving these goals. 

PSI strives to serve as a role model in combating climate change, reducing environmental impact, and supporting compliance with regulatory limits and environmental protection.
The environmental management system supports the following:

• Systematically identifying and evaluating environmental aspects
• Reducing environmental impact and emissions
• Using resources efficiently
• Continuously improving the company’s environmental performance.

 

Energy Management 

Since 2025, PSI has also implemented an Energy Management System in accordance with DIN EN ISO 50001 at all PSI Software SE locations. The system enables the systematic analysis of energy consumption, the identification of potential for improvement, and the pursuit of targeted measures to increase energy efficiency. These objectives include:

• Reducing the consumption of electricity, gas, and other energy sources
• Improving energy efficiency of the PSI buildings as well as the technical building systems
• Identifying and utilizing potential savings
• Reducing CO₂ emissions and lowering operating and energy costs
• Supporting the German government’s climate policy objectives

The responsible and efficient use of energy helps to strengthen PSI’s competitiveness and ensure its future viability in the long term.

Products and Services

For more than 55 years, PSI has been supporting its customers in the energy sector and energy-intensive industries with software solutions designed to increase efficiency and ensure the responsible use of energy, raw materials, and labor. As a result, PSI products have a significant impact on the sustainability of business processes in the industries they serve.

Control Systems for Electrical Grids

PSI’s control systems for managing large electrical grids are continuously being expanded with functions for the intelligent management of renewable energy feed-in, which enables significantly more energy from renewable sources to be utilized, minimizes grid losses, and also increases the security of supply. Together with partners from the energy sector and academia, PSI is committed to developing the intelligent energy supply infrastructure of the future. This includes, among other things, products for smart microgrids and the integration of charging infrastructure for electric vehicles into existing power grids.

For large transmission and distribution grids, a self-learning grid autopilot is available, enabling a higher proportion of renewable energy to be integrated into existing grids. Overall, intelligently managed grids can transport up to 50% more renewable energy.

Gas management systems for optimizing network operations

PSI’s gas management systems optimize the transmission, distribution, and storage of natural gas, green gas, and hydrogen. They enable the optimization of the compressor stations required for network operations and minimize technically induced losses.

Leak detection and leak location systems help reduce losses during long-distance gas and fuel transport and prevent environmental damage. By integrating higher proportions of hydrogen into the existing gas grid to store excess wind power as “green hydrogen,” PSI systems contribute positively to the energy transition.

Optimization software for resource conservation

For the maintenance of electrical grids and other critical infrastructure, PSI’s proprietary optimization software enables business processes to be improved, allowing the same workload to be handled with up to 15% less resource consumption and CO₂ emissions. By avoiding unnecessary peak loads, employee satisfaction is also enhanced.

Software for warehouse and logistics processes

PSI's Warehouse Management System, combined with artificial intelligence, can increase warehouse performance by up to 20% and reduce picking routes by up to 30%.

The software for the dynamic control of optimized logistics networks calculates the carbon footprint and identifies optimization solutions. These help save up to 10% on transportation costs and emissions.

Optimization in the automotive industry through sequence optimization

Using PSI sequence optimization to enhance assembly sequences in the automotive industry can save an average of 15% in resources. This equates to an annual CO₂ reduction of several thousand tons for a vehicle manufacturing plant.

PSI’s AI algorithms optimize energy and resource consumption 

In the steel and aluminum industries, PSI’s AI algorithms optimize energy and resource consumption, supporting the structural transition to low-carbon steel production. For example, in an integrated steel mill, the proportion of energy reuse in downstream process steps was increased from 5% to 54% through improved planning, resulting in energy savings of more than 20%. Higher productivity and energy reuse contribute significantly to sustainability, as the steel industry accounts for 7% of global CO₂ emissions.

PSI has no connection to adult entertainment products, alcoholic beverages, controversial weapons, firearms, fur and leather products, gambling, genetically modified organisms, military clients, nuclear energy production, services for the nuclear industry, pesticides, or tobacco products. Since PSI manufactures intangible goods, its business has no impact on protected or biodiversity-sensitive areas. Further information is available in the 2024 Annual Report.

Shared responsibility

Successful environmental and energy management depends on the commitment of all employees. By acting consciously in their daily work, everyone contributes to conserving resources, using energy efficiently, and protecting the environment.

PSI promotes sustainable mobility across the group with JobTicket and JobRad programs. Currently, 207 employees use the Deutschland-Ticket and 104 use JobRad (as of March 2026).

At Deutsche Bahn AG’s 2025 Climate Cup, PSI ranked 5th in the Champions category among 1,175 companies, with over 2 million passenger-kilometers.

Environmental awareness pays off

PSI has participated in the Carbon Disclosure Project (CDP) since 2011 and achieved a Climate Change Score of C and a Supplier Engagement Assessment Score of B- in 2025.

The Financial Times included PSI as one of 36 technology companies on its list of leading European companies in climate protection, “Europe Climate Leaders 2024.” 

The news magazine FOCUS and the research institute FactField recognized PSI for the third consecutive year as one of the German companies with top climate commitment as part of a comprehensive study in 2023.