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Arnhem to implement IoT-based intelligent energy management system

It will enable the city’s energy managers to automate and oversee a distributed energy system combining solar and wind power installations, electric fleet charger and more.

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Aerial view of industriepark Kleefse Waard. Photo: IPKW
Aerial view of industriepark Kleefse Waard. Photo: IPKW

The Dutch city of Arnhem has opted to develop an intelligent energy management system using IoT technology for its solar and wind energy park at Kleefsewaard.

 

This new data management platform will enable the city’s energy managers to automate and oversee a distributed energy system combining solar and wind power installations, electric fleet chargers, cold ironing for ships and battery storage, through a powerful desktop and mobile application.

 

Cold ironing

 

The energy produced at Kleefsewaard, located east of the city, is used for charging electric vehicles across the city as well as powering the ships docked in its harbour (cold ironing: the process of providing shoreside electrical power to a ship at berth).

 

To maximise use of local renewable energy, Arnhem required an energy management solution capable of predicting power generation, as well as optimising the vehicle charging and cold ironing, with the use of an additional energy storage unit.

 

A mobile application, built on professional open source IoT project OpenRemote’s, IoT platform, will enable the city’s energy managers and maintenance crews to evaluate the performance of all system components on-the-go, at any time or place.

“It will become a key tool to facilitate and improve the work of both our energy managers and maintenance personnel”

The system can forecast power generation, consumption, and carbon costs for the upcoming 24 hours. These essential data points are used to define optimal charging and discharging cycles for the energy storage unit, assess the vehicle fleet storage capacity, while considering the minimum required power indicated by the charging service provider, said OpenRemote.

 

“We are currently developing our own customised solution with the active support of the OpenRemote team. The end-result will be a smart energy management system that is tailored to our specific optimisation and reporting needs and hosted in our own secure environment,” said Peter Swart, programme manager energy at City of Arnhem.

 

“It will become a key tool to facilitate and improve the work of both our energy managers and maintenance personnel.”

 

The application will feature a dashboard to enable energy managers to supervise the whole system and monitor financial and carbon savings through a set of performance indicators.

 

Key system parameters

 

An ‘insights’ section within the app will display key system parameters such as local energy, self-consumption or saved costs in a personalised, single-page view.

 

Users will also automatically be alerted by the app in case of abnormal system behaviour, as determined per pre-defined rules, and receive a first analysis of the potential root cause.

 

“Thanks to our flexible IoT solution, diverse data sources using distinct communication protocols can be interconnected into a single integrated platform. That means that all the units that compose Kleefsewaard’s distributed energy system can now come seamlessly together in a centralised energy management system,” added Pierre Kil, CEO of OpenRemote.

 

“Relevant weather data has been added to predict energy generation, while feedback from the application’s optimisation routine is translated into charging and discharging commands and requested power setpoints, making the whole system more effective and easier to manage.”

 

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