Beyond Sustainability Forum 2026 – Rethinking Sustainability

Andres Gujan explains the significant impact of these investments:

“The capital market is essential. Massive investments in improving energy and resource efficiency are needed to steer the world toward a CO₂-neutral circular economy. On a corporate level, these investments are crucial for maintaining competitiveness and enhancing sustainability. At Carnot Capital, we have the expertise to assess the impact of individual products and technologies.”

1. Energy Savings

Energy savings are a key aspect when evaluating the impact of energy efficiency measures. The amount of energy saved is typically measured in kilowatt-hours (kWh). Another important indicator is the percentage reduction in energy consumption compared to industry standards. These figures provide insight into the effectiveness of the measures.

2. Cost Savings

Financial savings in energy consumption are a major incentive for energy efficiency measures. The return on investment (ROI) is a key indicator here, measuring the return as the ratio of energy cost savings to the investment cost of the measure. The ROI indicates how quickly the investment pays off.

3. CO₂ Emissions

Reducing CO₂ emissions is another critical driver of energy efficiency measures. CO₂ savings are essential due to legal requirements, customer expectations, or corporate sustainability strategies. The carbon footprint of products—especially electric vehicles—is gaining importance. The footprint reflects the total greenhouse gas emissions generated throughout a product’s lifecycle. Reducing this footprint is crucial for advancing climate change mitigation efforts.

4. Resource Efficiency

Resource efficiency focuses on the sustainable use of natural resources such as water, energy, agricultural land, food, or metals. The goal is to reduce consumption and minimize waste. This is essential to ensure long-term resource availability and prevent severe environmental damage to natural ecosystems. Key indicators include the amount of materials saved and waste reduction through more efficient use and recycling of materials.

5. Productivity Improvements

Productivity improvements are a significant benefit of energy efficiency measures. Metrics such as output per unit of energy used and production process optimizations—leading to lower operating costs and increased efficiency—are essential. These enhancements help boost competitiveness and streamline business operations.

6. Social and Economic Indicators

Investments in energy and resource efficiency also bring social and economic benefits. They create jobs and improve working conditions through sustainable transformations. Key indicators include the number of jobs created or maintained and improvements in working conditions and public health due to reduced pollution and safer technologies. These measures contribute to social and economic development while enhancing quality of life.

7. Long-Term Sustainability

Long-term sustainability is a core objective of energy and resource efficiency initiatives. Detailed sustainability reports that document the long-term impact of investments on the environment, society, and the economy are essential tools. Compliance with sustainability standards and obtaining certifications are further indicators of long-term sustainability.

8. Monitoring and Evaluation

Continuous monitoring and evaluation are crucial for the success of energy efficiency measures. The use of energy management systems and other technologies for real-time tracking and analysis of energy and resource use enables ongoing assessment and optimization. Benchmarking—comparing efficiency measures with industry standards or best practices—helps identify progress and potential improvements.

“By combining these methods and indicators, companies and investors can comprehensively evaluate and continuously improve the impact of their investments in energy and resource efficiency. These measures not only contribute to cost and emission reductions but also promote sustainable and future-oriented development.”
Andres Gujan, Founder of Carnot Capital & Portfolio Manager

Andres Gujan, March 3, 2025

This was the title of a discussion programme on SRF television. The answer depends very much on your point of view. The expansion of nuclear power slowed down after the Chernobyl disaster (1986) and practically came to a standstill after Fukushima (2011), with Asia (China, India) being the exception. Since Europe has renounced Russian gas and wants to take the reduction of CO2 emissions seriously, nuclear energy is enjoying more support in Europe again.

The biggest advocates of nuclear power come from the IT industry: for Jensen Huang, CEO of Nvidia, nuclear power is virtually the natural energy source for operating the power-hungry data centres and Microsoft has already concluded a long-term supply contract with the damaged Three Mile Island nuclear power plant.

Some Key Aspects

In addition to high reliability and climate neutrality, nuclear power’s apologists cite the greater safety and lower radioactive waste of the new reactor designs. In addition, nuclear power plants reduce dependence on problematic exporters of fossil fuels. Essentially, however, proponents and opponents have been putting forward the same arguments for decades. Public opinion remains divided and varies from country to country.

The technology is indeed developing. However, the first SMRs – Small Modular Reactors – are unlikely to go into operation before 2030. The economic viability of new construction projects remains a major challenge, as the new plants in the UK and Finland have shown. While state support for solar and wind projects is declining, this is not (yet?) the case for new nuclear power plants.

Significance for Carnot Capital

The future of nuclear technology remains vague due to high costs and safety concerns, which is why we are not directly involved. In addition, sustainability is controversial. Over the last 20 years, the production of nuclear power has remained more or less stable globally. Due to the high growth in renewable and fossil electricity production, the proportion has halved to around 10%. In terms of value, investments in renewable energies are currently around ten times higher. We are therefore looking for investment opportunities in the management of electricity grids, where requirements have risen sharply. Schneider Electric, ABB and BKW fall into this category.

Did You Know?

The first British coal-fired power station was started up by Thomas Edison in 1882, and the last one went out of operation at the end of September.