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DNV GL © 2015 SAFER, SMARTER, GREENERDNV GL © 2015

Future of Electricity Storage

Haike van de Vegte, DNV GL – Energy

Den Bosch, Oktober 7, 2015

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Industry consolidation

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DNV GLOnly by connecting the details can we impact the bigger picture

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Growing share of renewables

Security and ageing assets

Increasing global demand for

energy

Climate change and extreme

weather

Integration of energy markets

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Power Systems and Electrification

The grid system need at all times to have a balance between production of electricity (supply) and electricity consumption (demand)

Trade high volumes of electricity across great distances

Super grids

Enebling the growth market of Energy Storage

Energy Storage

Innovate and enhance services within Smart and Micro grids

Smart grids

Facilitate the shift of renewables towards the free market

Renewables

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Agenda

� Energy trends

� Technology and societal trends impacting the energy market

� The need for flexibility

� Energy storage:

– Roadmap

– Key value propositions

– Opportunities?!

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Energy trends

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Source: TKI EnerGO & TKI Switch2SmartGrids

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Energy scenarios change the energy mix in Europe (Roadmap 2050 EU)

EU decarbonisation scenarios

changing the energy mix

2030 and 2050 range of fuel shares in primary energy

consumption compared with 2005 outcome (%)

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Energy Roadmap 2050, European Commission

Increasing trend

Share of electricity in current trend and in

decarbonisation scenario’s (% of final energy demand)

2030 2050

RES

Gas

Nu

cle

ar

Oil

So

lid

Fu

els

RES

Gas

Nu

cle

ar

Oil

So

lid

Fu

els

2005

Range regarding

decarbonisation

scenarios

Range for current

trends scenarios

Electricity use as part

of the energy mix

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Centralised and decentralised energy systems develop in parallel

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Electrification will ease integration of (local) energy business, housing industry, and automotive sector

Transportation Local energy Smart devices

Smart home appliances, innovative services, etc.

E.g. micro CHP’s: local heating and electricity

production

Electric vehicles will become mainstream

Green gas application

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New market players will change the game, with new roles?

� Energy, and especially electricity has been a commodity market

� New market players approach ‘end-users’ as clients!

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Smart thermostats (Nest)

Powerwall (Tesla)Solarwatt (BMW)

Energy insight (Plugwise)

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The need for flexibility: smart energy

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Flexibility instruments to enable high RES penetration

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Demand Side Management

Supergrids / InterconnectorsEnergy storage

Flexible Power

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Roadmap Energy Storage 2030

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Roadmap Energy Storage 2030

� Topsector Energy

� TKI Wind at sea / TKI Solar

� DNV GL, Berenschot, TU Delft

� Objectives:

– Determine desired, respectively necessary future role of energy storage in the

Netherlands.

– Develop an action plan for the Dutch government to actually realize this role.

– Opportunities for ‘BV The Netherlands’.

� Part of a larger research program: ‘System integration’

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Current international situation & developments

� Main markets in most European countries are on

– a) storage behind the meter,

– b) island grids and

– c) storage for ancillary services

� Germany: self-usage requirements & subsidy on purchase price battery storage

� Italy: high penetration of RES and inability to adequately invest in grid

reinforcement

� USA: mandate of 1.3 GW of EES in California, adapting legislation (allowing non-

generating agents such as DR and storage) and identification of specifications

(speed, accuracy)

� UK: National Grid developing a new market design around energy storage

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Expected impact and benefits

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R&D for cost reduction

• Lowering TCO of an energy storage system and so boosting storage-business

Market models and regulation

• Stimulating new business models.

• Reducing market barriers

Standardisation

• Moving from a project-by-project based market to a product-market

• Create a level playing field

Job growth and Innovation• Stimulate start-ups in field of storage system integrations, storage safety,

refurbishing, design and recycling

• Boosting innovation, knowledge, and scientific, both regionally and nationally

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Value of storage

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Market trends for EESS

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Value of storage:Virtual Island Grids

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Second life Application: Pampus Power island

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2nd life

battery

Pampus - Avoided Grid cost: € 2 000 000 for a cable

Aim: Autarky rate of 70%, local RE production and local use with a 24 kWh battery (without the diesel generator / grid)

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Value of storage:Second life

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E-storage demand

BatteryReuse for

localelectricitystorage

Reuse of cost effective Electric Vehicle Batteries for storage solutions

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ABattReLife

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Partners:

Country:

Period:

Project topic:

Project objectives:

� Develop second life applications for end of

first life EV batteries

� Create new market models for re-using and

recycling EV batteries

� Life cycle assessment for second life

applications

Automotive partners: PSA, BMW

Germany, France, the Netherlands

2011 – present

Battery reuse and recycling

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rem

ain

ing

cap

acit

y [%

]

number of cycles

Battery Service life

Second life: 80% DoD

Recycling?

100% DoD

80% DoD

20% DoD

e.g. PV

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Recommended Practice on Grid-Connected Energy Storage

� DNV GL issues Recommended Practice on grid-connected energy storage systems

– Guidelines and methods to evaluate, assess and test safety, operation and

performance of grid-connected ES systems

– Referencing ISO, IEC and IEEE standards if possible, enhancing where needed

– Approach: technology agnostic, specific where necessary; worldwide application

� Objective:

– Reduce risks, stimulate safe and optimal implementation

– Provide industry guidance in the absence of comprehensive standards

� Creation: Joint Industry Project

– Industry consortium: manufacturers, end users, other stakeholders, academia

– Publication: December 2015 (IEC TC-120: late 2017 / beginning of 2018)

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Storage behind the meter

� 3600 kWh household

� 2400 kWh solar-PV

� 5kWh storage system

� 5 days in March, June, December

� Five days in June

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HEMSflow – Insight in the energy flows in a prosumer house

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Client:

Country:

Period:

Project topic:

HEMSflow objectives:

� Develop a model in Python to analyse the

behaviour of battery storage in combination

with PV in a household

� Model various ‘household strategies’ such as

full autarky and maximum self-consumption

� Calculate system losses

� Analyse optimal configuration for battery size

Confidential

Netherlands

2012 - 2014

Simulation of household energy storage

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Key Take-Aways

�Electric energy storage is taking off, be prepared!

�Operational experience and standardisation

�Value assessment and remuneration

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SAFER, SMARTER, GREENER

www.dnvgl.com

Thank you

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Haike van de Vegte

[email protected]

+31 (0)6 211 94956

future of electricity storage - energy storage nl · future of electricity storage haike van de...

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