The 7000-hour rule is a legal provision in Germany that provides relief from high grid charges for electricity-intensive companies. According to this regulation, companies whose facilities reach at least 7000 utilization hours (full-load hours) per year are required to pay reduced grid charges. Additionally, an annual grid consumption of 10 GWh is required. Utilization hours are calculated by dividing the annual grid consumption [kWh] by the maximum load peak during the billing period [kW]. This regulation is particularly relevant for companies with high electricity intensity, i.e., whose electricity consumption exceeds a certain proportion of their gross value added.
For companies operating in energy-intensive industries—such as metal production, chemicals, or glass and paper manufacturing—grid charges can represent a significant cost factor. The 7000-hour rule offers these companies an opportunity to significantly reduce their energy costs. Thanks to the reduced burden, businesses can remain competitive while keeping their operating expenses under control.
Applying the 7000-hour rule requires companies to prove that their facilities reach at least 7000 utilization hours per year and have a minimum annual grid consumption of 10 GWh. This is demonstrated using regular operational and consumption data. Utilization hours are calculated by dividing the annual grid consumption [kWh] by the maximum load peak during the billing period [kW]. The reduction in grid charges is tiered: at 7000 utilization hours, grid charges are reduced to 20% (an 80% reduction), at 7500 utilization hours to 15%, and at 8000 utilization hours to 10%.
| Description | Values |
|---|---|
| Annual energy consumption | 15 GWh |
| Maximum peak load | 2,100 kW |
| Electricity price (incl. energy price NN €0.008/kWh) | €0.15/kWh |
| Capacity price | €160/kW |
| Full load hours | 7,142 |
| Regular grid charges | €456,000 |
| Reduced grid charges (20%) | €91,200 |
| Savings | €364,800 |
Assume a company has an annual electricity consumption of 15 GWh and a maximum peak load of 2,100 kW. The electricity price is €0.15 per kWh and the capacity price €160 per kW. Without the 7000-hour rule, grid charges would amount to €456,000 per year. With an 80% reduction in grid charges by applying the 7000-hour rule, annual costs could be reduced to €91,200, resulting in savings of €364,800.
The full load hours in the example are 7,142. If the peak load increases by 43 kW, the company falls out of the 7000-hour rule. A single load peak can lead to the company falling out of the regulation. If you are just below the 7000 hours, the capping of load peaks by battery storage can mean that the regulation can be used.
– Cost savings: Reduced grid fees lead to considerable cost savings. This is achieved by calculating the grid fees based on the actual use of the grid infrastructure. For companies, this means that they only pay for the grid infrastructure that they actually use, which leads to significant savings, especially when capacity utilization is high.
– Competitiveness: Lower energy costs improve competitiveness. Companies that can reduce their energy costs have a clear advantage over their competitors. Lower operating costs make it possible to offer products and services at more competitive prices and to invest in other business areas.
– Planning security: Clear regulations offer companies security in their financial planning. With the 7000-hour rule, companies can plan and budget better as they know that they will benefit from reduced grid charges under certain conditions. This creates financial stability and facilitates long-term investment in the company’s development.
Battery storage systems can help companies meet the requirements of the 7000-hour rule by smoothing peak loads and increasing energy efficiency.
By using battery storage, companies can ensure that their facilities operate continuously, even during grid fluctuationsor load peaks.
Peak load management: Avoiding grid overloads and reducing peak loads. Battery storage systems can store energy and release it when needed to balance peak loads. This helps optimize grid utilization and avoid overloads that could lead to higher grid charges.
Energy efficiency: Storing surplus energy for later use. Excess energy produced during periods of low demand can be stored and used later when demand is higher. This improves overall energy efficiency and reduces the need for expensive grid electricity.
– Metal processing industry: Continuous operation of melting furnaces and rolling mills.
– Chemical industry: Continuous supply of reactors and production plants.
– Glass production: Constant energy supply for melting and forming processes.
– Automotive industry: Securing production processes and charging infrastructure for electric vehicles.
– Food industry: Stable energy supply for cold chains and production facilities.
– Data centers: Reliable energy supply for servers and data processing equipment.
The 7000-hour rule offers electricity-intensive companies an effective way to reduce their grid charges and thus achieve considerable cost savings. The use of battery storage systems can help to meet the requirements of this rule and at the same time increase energy efficiency and security of supply. Companies should use the potential of battery storage to optimize their energy costs and remain competitive.
For more information on implementing battery storage and using the 7000-hour rule, please contact us. Get a free consultation now and optimize your energy supply.
[1] MVV Energie AG. (2023). 7000-hour rule: No additional financial burden for electricity-intensive companies. URL: https://partner.m
https://www.bmwk.de/Redaktion/DE/Downloads/klimaschutz/3-impulsvortrag-1-ag-sitzung-01-06-2023.pdf?__blob=publicationFile&v=4
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