The future of electricity tariffs

Practical experience with 15-minute dynamic tariffs and charging infrastructure control

The world of energy supply is facing a groundbreaking change. With the emergence of smart grid technologies and advancing digitalization, there is an opportunity to make electricity tariffs more dynamic and efficient.

The challenge of traditional electricity tariffs

Traditional electricity tariffs are based on fixed prices that are independent of current demand and supply on the market. This often leads to inefficient use of energy and can put a strain on the electricity grid, especially at peak times. However, with the introduction of 15-minute dynamic tariffs, a promising economic alternative is now available that enables flexible and needs-based pricing. Group-e has taken this path with its Vario tariff.

The importance of dynamic tariffs

The introduction of 15-minute dynamic tariffs marks a turning point in the electricity industry. Suddenly, consumers and businesses are able to actively manage their energy costs by adjusting their consumption patterns to the current tariff structures and following a price signal. Not only can this lead to significant cost savings, but it can also help to relieve pressure on the electricity grid and improve security of supply.

Practical experience and case studies

To test the effectiveness of 15-minute dynamic tariffs, we have gathered various practical experiences and carried out case studies based on Group-e's Vario dynamic tariff. One particularly instructive example is our pilot project with a customer in the service sector and its underground parking garage, which was already using our load management system. By intelligently controlling charging stations from four different manufacturers, we were not only able to optimize the building's overall consumption, but also reduce the cost of charging electric vehicles by around 10%.

The role of energy management systems (EMS)

A key factor in the success of 15-minute dynamic tariffs is integration with energy management systems (EMS). These systems enable companies and consumers to optimize their energy consumption and benefit from the advantages of dynamic tariffs. By automating consumption decisions and adapting to current tariff structures, EMS can help to independently and automatically control energy consumption and reduce costs.

Future outlook and potential

The introduction of 15-minute dynamic tariffs is just the beginning of a new era in the electricity sector. With increasing digitalization and networking, it will be possible to granulate tariff structures even more finely and adapt them individually to the needs of consumers. From the perspective of EMS providers, it is important that electricity suppliers have a standardized solution for how tariffs are made available (e.g. via a standardized API).

Overall, practical experience and case studies clearly show the enormous potential of 15-minute dynamic tariffs and intelligent charging infrastructure control. By specifically adapting consumption behavior to current tariff structures, companies and consumers can not only save costs, but also make an important contribution to the stability and sustainability of the electricity grid.


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