InnovativenessSector coupling enables climate neutrality: How electricity, heat and mobility can be networked 

The transition to renewable energies is a key issue for klimaVest - but it alone is not enough to achieve climate neutrality. Sector coupling is a promising solution: networking electricity, heat, transport and industry.
Time to read5 min.
updated at06/10/2026
CategoryRenewable energy innovations
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The energy of networking: Sector coupling as a solution approach

Sector coupling describes the approach to closely linking the sectors of electricity, heat, transport and industry, which have so far been considered mostly separately. The aim is to make the potential of renewable electricity generation usable for all areas of energy demand and to sustainably reduce CO₂ emissions. Through this interconnection, the sectors can benefit from each other and increase flexibility in the energy system. 

Our Spanish solar project Castillejo has also reached Ready-to-Build status and is expected to go online in 2026. However, the projects show that grid connection is the needless eye for renewable energy projects. That’s why network expansion is so important.  

 

Key sector coupling technologies

Combined heat and power (CHP) generates electricity and usable heat at the same time. Heat pumps use electrical energy to extract heat from air, water or earth. Electromobility connects the electricity and transport sectors - provided that charging times are controlled intelligently. Power-to-liquids (PtL) produces synthetic fuel for air and marine transport. Electricity and heat storage compensate for fluctuations between supply and demand. Bioenergy supplies electricity, heat and fuels at basic load capacity. Digital infrastructure enables demand-based coordination between generation and consumption.

Find out more about the energy transition

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Conversion to renewables: So what happens next?

Even after the successful transition to renewable energies, we still have many tasks ahead of us to achieve Net Zero. The energy transition means much more than the expansion of wind and PV systems. The aim must be to cover the increasing energy demand in all sectors - heat, transport, industry - while at the same time compensating for weather and seasonal fluctuations in production. This opens up new attractive investment opportunities for investors through a broader differentiation of the “energy infrastructure” asset class.

 

Why the power turnaround alone is not enough

The strong focus on the electricity transition represents a major challenge, especially for regions such as Germany - characterised by highly fluctuating weather conditions. With the increasing use of renewable energies, the positive and negative residual load increases, i.e. the difference between the demanded electrical power and the feed-in from volatile generators such as wind and solar. This leads to insufficient or excess power requirements, especially during load times.