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DNV GL © 2016 SAFER, SMARTER, GREENER DNV GL © 2016

12 May 2016

Peter Vaessen

ENERGY

Future Transmission Grids

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Trends

Long term needs

Lunch lecture TU Delft Power Web

DNV GL © 2016

Peter Vaessen

MSc in High Voltage and Power Engineering

Legacy KEMA (many different positions since 1985)

– Transient (field) measurements in HV-grid

– Development of Digital Lighting Impulse Test System

– Power transformer modelling and diagnostics

– Manager HV installations department

– Innovations, FPGLab and Watt Connects

– Consultant HVDC and Smart Grids

Present

– Segment Director Future Transmission Grids

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Six Power System Challenges

Security threats

Financing

CAVE-thinking

Ageing assets

RES integration

Resilience

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The power system is transforming (fast) due to the impact of changing requirements and disruptive technologies

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Changing

requirements

&

Disruptive

technologies

DC technology

No single frequency

Wind and Solar

Storage

Aging infrastructure

Cyber vulnerability

Volatile generation

Digitization

Flexibility

Human behaviour

Power to the people

COMPLEX HYBRID SYSTEM

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Business Changes due to:

variable renewables new technology

digitisation

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Two developments: interconnectivity and “hybridisation”

ENTSO-E estimates the total investment costs (for the next 15 years) for

projects of pan-European significance at approximately €150 billion, of which

€25 billion will be for subsea cables.

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(draft) TYNDP16

growth of HVDC

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A trend is (transmission) undergrounding

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Source: TenneT

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Digitalisation and increased complexity

𝐵𝐴(𝑣)

.𝑑𝐴 = 0

From an analogue physical system to an interrelated non-linear digital control system

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Power system grid architecture changes due to DC

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Source: DNVGL

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Key HVDC LCC components for bulk power transmission

transformer valve

wall bushing

reactor

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DNV GL © 2016 21 October 2015

Ungraded

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Wind: larger and smarter

By 2025 onshore wind will be the

least-cost option for building excess

electricity capacity almost universally

Fixed offshore wind moves towards

deeper waters, further from shore

Floating offshore wind is entering

demonstration phase

The size of the bubbles are indicative of the capacity of the wind farms.

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Developments in solar PV will drive down costs

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Electricity storage for three discharge durations

Renewables - a key driver for

upscaling of

energy storage

Expected decline in battery prices

suggests

that home storage will grow rapidly

Applications require storage of

various

duration, favouring different

technologies

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Hybrid grids

Combination of ultra-high voltage DC

and AC systems

Onshore development driven by new

converter technology and HVDC

protection systems

HVDC lowest cost solution for

transmission of high power electricity

over long distances

Today: More than ~600 km

2025: More than ~400 km

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Blogs: http://blogs.dnvgl.com/energy/what-are-hybrid-grids-a-brief-primer

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10 Technology trends creating a new power reality

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https://www.dnvgl.com/energy/publications/download/technology-outlook-2025-energy.html

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Future Transmission grids focus areas

T&D system resilience, opportunity and

risk scenario model, new technology

qualification

Complex hybrid systems: embedded DC

and increasing complexity of systems

operation, grid stability

Cyber physical system testing (closed

loop testing)

Data analytic services for grids, cyber

security and reliability

Verification of power systems, different

quality levels and testing processes

High-Voltage DC circuit breaker testing,

develop requirements and test methods

for future meshed HVDC grids.

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SAFER, SMARTER, GREENER

www.dnvgl.com

Thank you for your attention.

Peter Vaessen segment director Future Transmission Grids peter.vaessen@dnvgl.com

+31 (0) 26 356 3584

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