delivering electricity grids - uniper · of the challenges that electricity grid ... we planned a...

Delivering electricity grids

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We are a leading international energy company with operations in more than 40 countries and around

13,000 employees. We combine a balanced portfolio of modern assets with comprehensive technical

and commercial expertise. Our assets and capabilities enable us to deliver bespoke, competitively

priced energy products and services with agility, precision, and speed.

Uniper Energy Services –

A heritage of technical excellence

As an experienced international energy company with a new name our know-how is based on a heri-

tage of power industry expertise that dates back a hundred years. Our family tree includes some of

the leading companies involved in energy generation and gas networks in Europe – businesses known

for their reliability and technical excellence.

We deliver engineering, asset management and operation, energy sales, and technical solutions to

optimize your commercial and technical performance in whichever market you operate.

We have the know-how to deliver solutions for the challenges of the future. As your partners in ener-

gy, we are your independent advocate for new projects. Benefi t from our comprehensive experience to

achieve full value from your existing assets and your electrical distribution projects.

We are Uniper

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Your partner for grid solutions

With decades of experience as a provider of engineering services to one of Europe’s

largest energy generation and distribution businesses, we have a deep understanding

of the challenges that electricity grid operators face in the changing energy world.

We provide solutions in line with your priorities and independent of the supply chain.

This reduces the cost of your project and your reliance on original equipment manu-

facturers (OEMs). We execute a complete range of projects from small to large scale.

Our multidisciplinary teams will coordinate all aspects to progress your projects with

maximum effi ciency, reducing its complexity and risk. Partnering with us, your time-

scales will be optimized, and you will save costs.

Our solutions combine expertise in electrical engineering and civil engineering with

owner’s engineer services, project management, supervision of installation, permitting

and commissioning, and quality management.

With a team of more than one hundred specialists across Europe, we will support you

to integrate the rapid expansion of renewable and decentralized power sources. Our

long experience in the development and operation of power networks makes us your

ideal partner to meet your challenges in the most effi cient, technically secure, and cost -

eff ective way.

Benefi t from our expertise

Develop grid infrastructure

Partner with us to gain access to the best solutions independent of equip-

ment and software suppliers. Our solutions for grid infrastructure include

power lines, substations, and transformers.

Connect renewable, decentralized generation and storage facilities

You will benefi t from our long experience of grid operation and optimizing

through-life costs.

Benefi t from the local energy grids by means of revenue and control

Our integrated generation and storage solution will be tailored to your

needs.

Achieve improved levels of operational effi ciency

We will help you to optimize your networks and power quality. Profi t from

our experience of how best to use the latest smart technologies and digital

techniques.

By working with our multidisciplinary teams you will benefi t from an end-to-end engineering service for the development of new trans-

mission networks – overhead, underground, including HV earth cabling, and marine cabling – and the expansion of existing networks.

Our specialist engineers will manage all aspects of your projects, taking into account the grid requirements and business factors

from your point of view. Take advantage of our services ranging from initial feasibility studies, through planning, and specifi cation, to

installation and monitoring.

Our project development services

Expanding electrical networks

• Feasibility assessment

• Approval planning

• Design engineering

• Design review and tender assessment

• Procurement

• Project management

• Site management

• Owner’s engineering

• Construction management

• Installation

• Monitoring

• Quality assurance

• Process supervision

• Cost monitoring

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Connecting new power plant to the grid

On behalf of our client in the Netherlands we delivered a 380 kV connection from a new power plant to the grid. The pro-

j ect included an 880 m cable between the generator transformer and grid connection switchgear, a new HV disconnection

point, and a local control system. Our client focused on its core business, while we used our proven skills and experience

to take care of the conceptual design, basic and detail engineering, specifi cations, project management, and monitoring

of quality assurance and commissioning.

Comprehensive services cover all aspects of a project

Our client required a new 380 kV grid connection for their German power plant, consisting of a 480 MVA machine trans-

former, the transformer foundation, and a 400 kV overhead line connected to grid switchgear. We provided a comprehen-

sive package of services including conceptual and detail planning, project management, specifi cation and tender, demoli-

tion and disposal of existing structures, and supervision of construction. By partnering with us, our client benefi ted from

all aspects of the project being managed from a single source, reducing complexity and cost.

Off shore cable design and procurement

Our off shore wind farm client required the design and procurement of a robust but cost-eff ective electrical power

cabling solution. We provided a comprehensive design, specifi cation, and quality assurance service for onshore and

off shore cables. This included liaison with the developer and contractors supplying robust, quality-assured electrical

power systems, including a communication and control system fi ber optic package. We mitigated risks by ensuring the

cable system was fi t for purpose, and could be effi ciently installed and commissioned without issue. Our client benefi ted

by avoiding project delays at key stages. With our support the client was able to meet the planned commercial operation

date with no loss in revenue.

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Grid operators are under increasing pressure to connect new fl exible generation sources to their networks in ways that allow for a

more complex, systemic model, and management of multiple points of variable supply and demand.

Our multidisciplinary teams off er end-to-end engineering, and engineering procurement as well as a construction service for the

development and expansion of substations and transformers for high-voltage and medium-voltage systems, either within power net-

works or at generation plants.

Benefi t from our breadth of industry experience. We are independent of any OEM and choose the most benefi cial technology and com-

ponent for your project. This can improve your project’s net present value, optimize your CAPEX, and reduce future OPEX because we

consider through-life costs at every stage.

Our engineering packages

Developing substation and transformer installations

• Feasibility studies

• Plant design



• Electrical transient analysis

• Electrical protection design

• Network measurement

• Noise measurement and mitigation

• Power system study and design

• Equipment specifi cation

• Equipment and cabling layout

• Design review and tender assessment

• Procurement

• Project and construction management

• Civil engineering



• Grid connection and compliance

• Acceptance tests and commissioning

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World’s largest railroad converter

We planned a 400 kV substation, incorporating the world’s most powerful railroad converter, and a 100 kV auxiliary

connection for our client’s new 1,100 MW coal-fi red plant in Germany. We delivered project management, engineering,

commissioning, quality assurance and quality control, and temporary operation of the switchyard. Partnering with us,

the project was executed on time and on budget so that our client was able to successfully commission the 413 MW

railroad converter, which is capable of supplying 25 percent of the power required by Germany’s rail network.

Supply maintained during rebuild

Our German client, a distribution network operator, needed owner’s engineering support to rebuild a 110 kV switchyard

while partially in operation. We managed the rebuild including a major engineering eff ort to provide provisional instal-

lations to keep the asset in operation. We completed the project as scheduled with no unplanned outages, allowing our

client to benefi t from maintaining continuous supply to customers. Our client was able to realize the project despite their

own resource constraints.

Construction of 110 kV air-insulated substation

Our client in Germany required the construction of twelve-panel 110 kV switchyard incorporating air-insulated switch-

gear, gantries, transformer foundations, switchgear building, 30 kV and 10 kV switchgear, and secondary equipment. We

provided planning, tendering, project management, and commissioning support. Our client benefi ted from the project

being completed on time and on budget within a short period of nine months.

The new energy landscape requires large numbers of renewable, decentralized, and independent energy sources to be connected to

the grid, in addition to the integration of storage solutions and electric vehicle infrastructure.

When you need to connect new generation plant and assets to the grid, we have the skills to handle all aspects of your project, from

business, engineering, and regulatory viewpoints. We can work with either network operators or generators to ensure that the gen-

eration plant is grid code-compliant. With our support you will be able to leverage commercial opportunities to operate your plant in

ancillary markets and gain maximum value from your assets.

Profi t from our bespoke solutions. We tailor projects to your specifi c needs while optimizing through-life costs.

Services delivering grid connection

Repowering a wind farm

Our German wind farm client planned to repower from 100 to 125 MVA and their

existing infrastructure needed analysis regarding capacity reserves and upgrade

measures. We provided an OEM-independent study of the spare capacities of

transformers, switchgears, and cables to minimize CAPEX and to extend the

lifetime of existing assets. We advised that only minor investments would be

necessary to keep the electrical assets of the grid connection fi t for their future

purpose. Our client avoided outages during the rebuild and benefi ted from a

signifi cant reduction in CAPEX for electrical infrastructure.

Meeting off shore TSO requirements

We were entrusted by our German client to complete electrical system studies

for their off shore wind farm connected via an HVDC link to the onshore grid. Our

harmonic calculations and dynamic simulations enabled our client to demon-

strate that the off shore transmission system operator’s requirements were met

for the acceptance of a grid connection.

Providing access to the grid

• Feasibility studies



• Business case development

• Specifi cation of transmission and distribution

connections

• Substation designs

• Cabling and transmission line specifi cation

• Electrical network design, optimization,

cost-benefi t analysis


• Site supervision


• Health and safety management


• Commissioning

• Grid code compliance

• HVDC connection of wind farms

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Local energy or microgrid solutions can maximize the use of renewable energy at a community level, reducing costs, minimizing

the load on the distribution system, and allowing independence from the grid, at lower environmental impact than conventional

generation.

For locations such as energy-intensive industrial sites or remote residential communities, local energy systems can signifi cantly

reduce your generation costs and provide access to new revenue streams by coordinating energy sources and aggregating buying

power. If you are a network operator, a local grid can reduce or defer your capital investment and accommodate greater distributed

generation within your system.

We can provide solutions that integrate innovative power generation and storage technologies. We are independent – our bespoke

solutions are designed for your specifi c needs rather than off -the-shelf solutions from an OEM.

Our project management services

Delivering the benefi ts of local energy grids

• Feasibility studies, business case development

• Design

• Technical specifi cation

• Tender management


• Stakeholder management

• Grid-compliant technical solutions

• Business and ownership models

• Asset management strategies

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Developing a model microgrid

Our client planned a microgrid in northern Europe as a model for similar future

schemes. We analyzed potential sites, taking into account the availability of renew-

able energy resources and engagement by the local community. The scheme

proposed included wind and photovoltaics generation, battery storage, a back-up

generator running on renewable fuel, an energy management system, and an

interface to the network control room. We specifi ed all the functional requirements

and worked with suppliers to source the optimum equipment, creating a versatile

model that could be quickly transferred to alternative network areas. We provided

specialist advice on engineering aspects, plus the engineering resources, to allow

our client’s engineers to remain committed to operational duties.

Innovative community energy plan

Our client engaged us to develop a renewable energy solution to provide power

directly to their local community and commercial properties from a locally

installed hydro scheme, photovoltaics, and battery storage. Our feasibility study,

business model, and technical design using smart energy storage systems and

power scheduling systems provided the community with a sustainable solution

meeting all technical, legal, and regulatory requirements. With our support the

community met its objective of tackling fuel poverty with an innovative renew-

able energy project enabling it to determine its own “price point” based on a

business model that did not rely on feed-in tariff s.

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We share our experience of how best to use the latest smart technologies and digital techniques to help you optimize your power

quality and achieve improved levels of operational effi ciency across your networks. Partnering with us gives you the opportunity to

gain an early warning of potentially disruptive failures, and our analytical tools support you in increasing reliability and improving the

operation of your assets.

Utilize our experience in operating power networks across Europe. We can work with you to optimize your maintenance regimes, using

specialist in-house analysis techniques to prioritize expenditure and eff ort on the assets of highest importance to your network. Our

targeted strategies can reduce cost and help avoid unforeseen outages.

We employ the latest monitoring and analysis solutions to assess, manage, and extend the life of key components of your network,

including transformers and switchgear.

Count on us in the event of component failure. Our multidisciplinary team calls upon a wide range of specialist knowledge, testing

techniques, and in-house laboratory facilities, to swiftly identify the root cause and provide you with a sound diagnosis as the basis for

future action.

Our optimization services

Asset management and maintenance improved

Our UK client engaged us to create an engineering governance framework and

optimized maintenance strategy for its 110 kV private network overhead line and

substations connecting two manufacturing sites, 7 km apart across a densely

populated area. We redefi ned its asset management strategy and tendering

for maintenance services. Our client benefi ted from reduced OPEX and also

achieved both health and safety and environmental compliance.

Cause of transformer failure identifi ed

Our industrial customer in Germany asked us to identify the cause of the failure

of a 25 MVA, 30/10 kV transformer supplying power to an air compressor. We

carried out a detailed analysis of the damage inside the transformer mecha-

nisms and detected the off -load tap changer as the root cause of the failure.

We expedited our analysis so there was minimum delay for the client, and we

supported them by fi nding a back-up transformer to avoid further disruption to

the plant process.

Imminent failure warning

Our UK industrial client entrusted us to carry out performance monitoring of

their main import transformer. Using our know-how gained from providing

condition monitoring services for over 800 transformers, we helped our client

to manage the risk of failure through continuous condition assessment and

dissolved gas analysis. Our advance warning of imminent failure enabled us to

provide a technical specifi cation, procurement, and installation of a replacement

unit to mitigate the loss of our client’s 35 kV network, production capability, and

export generation.

Optimizing networks and operational effi ciency

• Condition monitoring

• Network and power system analysis

• Asset life management

• Risk management

• Engineering governance

• Root cause analysis

• Asset management solutions

• Transformer performance monitoring

• Transformer life extension

• Transmission and distribution network planning

• Asset compliance audit

• Optimized maintenance strategies

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Uniper Technologies GmbH

Uniper Technologies Ltd

Uniper Anlagenservice GmbH

Uniper Energy Storage GmbH

Uniper Energy Sales GmbH

Uniper Global Commodities SE

Energy Services

Contact us for a reference list of projects

[email protected]

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July

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Uniper SE

Energy Services

Holzstraße 6

40221 Düsseldorf

Germany

www.uniper.energy

[email protected]

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