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3. Status quo of electricity production and storage in Germany 4. Capacity development until 2030 5. Technology overview 6. Market of electricity storage facilities 7. Conclusion
The following studies provide the basis for the speech:
• Energy storage: Opportunities and risks for energy suppliers, manufacturer and consumers
• E-Mobility – from a leading market to a mass market? - Potentials, challenges, strategies
• Network services in Germany until 2025 (4th edition): Customer requirements, market development and trends
• The market for combined heat and power systems (CHPs) in Europe until 2020: Potentials, compe-tition, chances and risks of combined heat and power generation
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• A claim of EEG*-remuneration and of EEG-direct marketing is also possible for stored electricity from renewable energies.
• In the case of feedback into the same network the stored electricity from renewable energies is exempt from the EEG apportionment.
• New storages (in case of feedback not in annual peak load times) for 20 years (modernized pumped storage for 10 years) are exempt from the fees for network use.
• The combination of storage facilities and EEG-facilities is useful for exploiting the maximum promotion.
Risks
• Shortly the EEG will be revised again, it is therefore not certain that the current conditions also apply to future projects.
• Efficiency losses in the storage lead to losses of feedback into the network that will not be reimbursed.
• By the absence of a regulated “capacity market" for decentralized storage capacities there is still no consistent marketing over the entire year guaranteed.
2. Framework conditions Impact of legal regulations in the electricity storage market
Against the backround of the initial situation and in the context of the legal framework conditions there are significant opportunities and risks in the market for electricity storage:
6. Market of electricity storage facilities Description of scenarios
Development of the market for electricity storage in two exemplary scenarios:
Scenario 1: „Reference scenario“ (on the basis of the BMU-lead scenario) • Few new central power plants are realized • The promotion of renewable energies is slightly reduced • The network expansion leads to no restrictions in the development of distributed generation • Medium pace of research and development of energy storage – the economical use of individual storage technologies is possible due to the framework conditions • Objectives of the Federal Government to the development of renewable energy can be achieved Scenario 2: „Capacity market“ • The promotion of renewable energy remains in a similar form • Remuneration of the available power favors the maintenance and the construction of new efficient and flexible conventional power plants (mainly gas-fired power plants) • Large stationary respectively central electricity storage facilities also benefit by participating in the capacity mechanism • The implementation of a capacity market ensures long-term framework conditions that create market incentives in the storage market and promote the willingness to invest and the dynamics in this market as a whole.
7. Conclusion Future of Germany's electricity storage market
• There is great potential in Germany for the use of electricity storage to ensure the network stability and the efficient use of electricity surpluses from fluctuating feed.
• By now, only pumped-storage power plants are applicable for such a large-scale deployment. But at the moment even this technology is losing its business model due to differences in peak and off-peak electricity prices.
• Battery storage and Power-to-Gas technologies will be applicable to a comparable degree at the earliest in 2020. For now they can not compete with pumped-storage power plants.
• There is high potential for significant cost reductions especially in the field of Lithium-Ion and Redox-Flow-Batteries that will bring further dynamics in the market: until 2030 there is expected a cost reduction of 25 to 50 percent.
• At the moment, primarily pilot projects are realized in the fields of large batteries and power-to-Gas facilities for further researches and to increase the know-how.
• Currently, in particular the market for small storage applications (e. g. in combination with PV systems for prosumers) is developing for battery storages (especially Lithium-Ion), also with regard to electric mobility.
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