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Energy storage as an enabling technology for high shares of variable renewables:

Storage technologies for solar PV

IRENA/EU PVSEC, 22nd June 2016

Miriam Hegner, Senior ExpertTechnologies and Standards

German Energy Storage Association, BVES

The German Energy Storage Association (BVES)

• The BVES is the industrial association of German energy storage companies that is open to all technologies in the areas of electricity, heat and mobility.

• We are a dialogue partner for politics, administration, science and publicity. With targeted lobbying at the interfaces of politicaldecision making we are trying to improve theGerman regulation and policy framework.

• In addition, the BVES monitors research and development activities and informs members of new results and developments.

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Members (extract)

Network

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Current Situation in Germany:Installed RES-Capacity in 2014

Current Situation German „Energiewende“

Ambitious targets for the “Energiewende”: until 2050 60% of RE over all, 80% of electricity

Milestone of more than 30% of energy demand by renewable energy sources.Some regions up to 80% and even 100-140%.

Grid cannot cope with such high percentage and the fluctuating feed-in of renewable energies.

Solution is energy storage as a flexible andeffective way for different issues.

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Storage is an ideal tool…

Peak shaving Own consumption

Load distribution

Positive/negative balancing power

Back up energy

Frequency regulation

Voltage stability

Increase ofefficiency Off grid supply

Until 2011: Market driven by Feed-in tariffSince 2011: Market driven by own-consumption

Today: Own-Consumption trough batteries

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Market potential

• 1.500.000 PV-Systems

• 25.000 Battery-Systems

• Enormous retrofit potential

• Decreasing FIT

• Battery storage systemshardly pay off today

• Customer‘s business caseget‘s better every day

Market prizes for batteries

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Swarm Storage by caterva

Large Scale Systems: Balancing the grid

Three types ofcontrol power:

- PrimaryReserve

- SecondaryReserve

- TertiaryReserve

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Primary Reserve Power price development

Installed capacity of batteries in Primary Reserve Power

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New Network Code for Frequency Regulation (NC LFCR)

9. For the CE and Nordic synchronous areas, each FCR provider shall ensure that the FCR from its FCR providing units or groups with limited energy reservoirs are continuously available during normal state. For the CE and Nordic synchronous areas, as of triggering the alert state and during the alert state, each FCR provider shall ensure that the FCR from its FCR providing units or groups with limited energy reservoirs are able to fully activate FCR continuously for a time period to be defined pursuant to paragraphs 10 and 11. Where no period has been determined pursuant to paragraphs 10 and 11, each FCR provider shall ensure that the FCR from its FCR providing units or groups with limited energy reservoirs are able to fully activate FCR continuously for at least 15 minutes or, in case of frequency deviations that are smaller than a frequency deviation requiring full FCR activation, for an equivalent length of time, or for a period defined by each TSO, which shall not be greater than 30 or smaller than 15 minutes. 

10. For the CE and Nordic synchronous areas, all TSOs shall develop a proposal concerning the minimum activation period to be ensured by FCR providers in the CE and Nordic synchronous areas. The period determined shall not be greater than 30 or smaller than 15 minutes. The proposal shall take full account of the results of the cost–benefit analysis conducted pursuant to paragraph 11. 

Storage bank by ads-tec

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Fair Market Conditions for Energy Storage as a key element for the transition to a sustainable energy sector:

- Definition of Energy Storage as an own sector no end consumer fees

- Fair entrance conditions to the PRL Market

- New Business Models for ancillary services thatEnergy Storage Systems can provide such as Frequency Regulation, Black Start, Voltage Stability….

finally…

• Government fosters flexibility ofthe energy system

• Upcoming energy law supports thedifferent flexibility‐options andrequires an equal market for all technologies

• For a real level playing field thereare still a few issues to solve…

… we are working on that.

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Thank youfor your attention!

Bundesverband Energiespeicher e.V.Oranienburgerstraße 15D - 10178 BerlinPhone: 030 – 54 610 630

www.bves.de