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Battery storage will increase flexibility

June 06, 2018

The major intention of the investment in a battery storage system on it's own production site in Ghent, is a higher level of self-consumption of electricity out of PV. Electricity that is generated out of PV is 3 to 4 times less expensive then energy from the grid. Moreover, studies claim that the market price of electricity will raise up to 200% by 2030. With the installation of a BESS, self-consumption on the new site will increase from 40% to 64%. Overall, an additional 24% of energy consumption on the new ATS site will be provided by energy that is 4 times cheaper.

Intelligence is key

In a residential installation, the thermostat regulates the heating system. In case of faulty regulation, it is possible that more energy is consumed, even on high efficiency installations. Equal reasoning can be applied for a BESS: the battery storage system will load and unload in an intelligent way, based on weather forecasts, current en estimated energy prices, estimated consumption, etc.

For this, ATS depends on a service provider that will elaborate an in the cloud Energy Management System (EMS) based on MiSo (multiple input– single output). When it comes to input, interaction with the energy market is important and necessary. Herewith, EDF Luminus is a key player. Through our own designed Dataflow Management System (DMS) in a Siemens based Desigo CC systeem, the EMS will receive relevant data. Semi-autonomous decisions will be made based on this EMS to increase the efficiency of the battery.

The cloud?

As an installer, ATS is aware of the risks of cloud based computed in critical Industrial environments. Nor the cloud nor the BESS should have an impact on the continuity of the processes. That's why ATS has chosen to decouple the BMS and the BESS. Additionally, several protection mechanisms are specifically engineered. For example, there is an intelligent control of the temperature on the transformator which decreases the load on the BESS coupled winding if needed. During the islanding mode operation, the BESS inverter is controlled in such manner that, even as the grid is absent, there is still a priority to supply the required power via the installed PV installation. This will reduce the load on the batteries and consequently increases the autonomy time of the BESS. 

At this stage the concept is fully designed. The delivery of the battery and the practical integration is scheduled for quarter 3 of this year, and the aim is to have the BESS fully operational by end 2018.

Update: "Battery Energy Storage System" (BESS) ATS Group is taking shape.

February 17, 2018

A BESS can provide a wide array of services to the end-user. As a system integrator, ATS Group is considering all possible applications of such a BESS. However, each dedicated application does have implications to the practical integration. With the final decision in relation to its intended operation, which is focusing on energy optimization, as with the selection of the supplier of the system, the BESS project is fully on track!

 

A BESS allows flexible energy flow management. The system can be integrated with the focus to optimize the consumption of locally generated renewable electricity. Subsequently, the system can make use of the difference between day and night tarification, or perform peak shaving, in order to reduce the actual energy bill. The end user can utilize auxiliary services, such as the mitigation of harmonic distortion, the compensation of reactive energy or provide power as a backup unit.

 

The choices

 

At the start, even before the actual design phase, the choice of operation of the BESS is to be selected. The final decision does have a significant impact on the power ratio, the battery and the practical integration. ATS Group and EDF Luminus gave the priority towards energy optimization, combined with the maximization of auxiliary services such as back up power and UPS functionality. Those services closely relate to the core business of ATS Group.

 

The solutions

 

The final application is fundamental in order to request a dedicated study from the network operator. The close collaboration between the network operator and the medium voltage department of ATS Group resulted in an innovative integration of the BESS into the grid. This did not only comply with all the required technical requirements, but also resulted in a positive effect on the total cost of ownership.

 

Based on the criteria, a selection of the supplier has been made. The final decision was in favor of ABB, who is suggesting a unique modular concept both in power as in total concept. In return, ABB does rely on the services provided by the department Panel Building of ATS. In addition the safety and security issues are taken into consideration. The overall concept is tailor made for the SME, which is searching for answers in an era on energy transition.

 

For the actual integration and to seamlessly coordinate all the energy flows, a monitoring and control platform is needed. At this stage the BU Automation and BU Building Automation will play a key role.

ATS invests in Battery Energy Storage System (BESS) on its own production site.

December 12, 2017

The future production site of the ATS Group at the Langerbruggekaai-Ghent will showcase all the technologies ATS Group has to offer. Specifically focusing on energy optimization, ATS Group and parent company EDF Luminus want to take on the pole position. The installation of a BESS is a key part of the investment and will be a real pioneering project.  

Currently, electricity markets are under a lot of strain and it is full of challenges towards the future. Renewable decentralized energy production and the infrastructure of electrical vehicles are just some examples. A lot of these evolutions will result in financial implications in relation to grid utilization and grid infrastructure. ATS and EDF are convinced that BESS and energy storage in general will be a key part in the network of the future.

Investing today for the world of tomorrow

ATS and EDF Luminus want to give answers today for the challenges of tomorrow. In this framework, it is decided to invest in innovation, knowhow and engineering in the specific domain of energy storage. The goal is to optimize energy consumption on our site.

Specifically, ATS is investing in a system capable of storing 270kWh of energy in Lithium-ion battery stacks. This is a range suitable and applicable for other SME’s and industrial facilities in order to increase self-consumption. Soon everybody will be able to validate that storage systems are interesting and viable for own consumption.

The foundation is already laid out

The aim is to get the BESS operational by mid-2018. In the mean time numerous preparations are being made. The grid compliance study - as requested by the Distribution Network Operator EANDIS- has been initiated. But this is just a start, as may different questions will pop up during the project. Which battery system will be used? How can we integrate the battery technically. How will ATS manage this new flexibility of the BESS to the specific production process. Which system will be used as an energy management system? One thing is sure, it will be an intriguing story!

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