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H2020

SENSIBLE Report Summary

Project ID: 645963
Funded under: H2020-EU.3.3.

Periodic Reporting for period 1 - SENSIBLE (Storage-Enabled Sustainable Energy for Buildings and Communities)

Reporting period: 2015-01-01 to 2016-06-30

Summary of the context and overall objectives of the project

Energy storage is expected to play an increasingly important role in the evolution of our energy system, particularly to accommodate increasing penetration of intermittent renewable energy resources and to improve electrical power system performance. Therefore, the overall objective of the project SENSIBLE is to develop, demonstrate and evaluate a storage-enabled sustainable energy supply for buildings and communities.

The European Union has set ambitious goals for becoming a low-carbon economy and in doing so making the energy supply sustainable, reducing greenhouse gas (GHG) emissions, and limiting climate change (among others, GHG reduction by 40% by 2030 in comparison with 1990). The goals can only be achieved if:
(a) the share of electricity as an end-use energy is increased at the expense of other forms of energy (e.g. by replacing gas-fired domestic heating by electrically driven heat pumps);
(b) an increasing portion of electric power is produced by inverter-driven, fluctuating, renewable energy resources;
(c) the electric power demand is matched to the available power supply through load shifting, i.e. the use of storage technology; and
(d) if problems increasingly seen in public power networks (such as harmonics, phase imbalance, voltage fluctuations, power flow reversal and fast power flow changes) are compensated for, which is preferably done by local, inverter-driven storage technologies.

A wide range of partners is working together to demonstrate that the EU 2030 targets can be achieved on a local level by the intelligent integration of existing small-scale storage technologies into the local power distribution grid as well as into houses and commercial or industrial buildings. The SENSIBLE project will demonstrate the intelligent integration of a wide range of available small-scale storage technologies comprising electro-chemical storage devices (batteries), electro-mechanical storage devic-es (flywheel storage systems), and thermal storage devices (heat storage devices); heating, ventilation and air conditioning (HVAC) systems which, together with the building structure, form a thermal storage device.

In order to use the full potential of storage technology for renewable integration one has to seamlessly integrate primary storage technology, power electronics, control, communication and information technology with the right design of energy markets and last but not least business models. Therefore, the project SENSIBLE:
• develops and demonstrates power electronic technologies that enable the full set of storage functions,
• develops measures and methods for safe storage integration into buildings and power networks,
• develops and demonstrates advanced tools based on information and communication technology for the control and management of distribution networks,
• develops and demonstrates energy management in buildings and local communities,
• develops and demonstrates locally-focused energy market services operated on a suitable market platform,
• defines specifications enabling new distributed energy storage products, markets and businesses, and
• conducts life cycle analyses and assesses the socio-economic impact of small-scale storage integrated in buildings as well as communities and distribution networks.

The three demonstration sites for the SENSIBLE project have been chosen to fit together and complement each other:
• Évora (Portugal) – demonstrating energy storage and energy management applications, both applied to grid and behind-the-meter applications, thus creating value for distribution system operator and enabling for end user market participation. This demonstrator has to deal with „weak” and potentially unreliable powergrids in a rural or semi-rural environment.
• Nottingham (UK) – demonstrating storage integrated in buildings and communities, combining local renewable generation and energy-market participation. The demonstrator is positioned in an urban area

Work performed from the beginning of the project to the end of the period covered by the report and main results achieved so far

The first important achievement during the first reporting period is the implementation of a functioning project setup across all beneficiaries, work packages and tasks. The difficult process of defining the main use cases, identifying the resulting requirements and setting up the system architecture for each of the three demonstrators has been successfully finalized. Besides, the system architecture and the implementation plan (using the identified requirements) for the demonstrators have been the main achievements. The project received a first external feedback while organizing and hosting the workshop “Small scale storage – from technology to stakeholder engagement”, which was very positive and confirmed the relevance of the work done so far.

WP1:
One of the main objectives of this WP1 was the definition of the use cases (UC) in the two domains of the project, namely the Distribution Grid and the Customer Services. Besides, different KPI´s were defined to validate the results of the project. The definition of the KPI’s also allowed a deep analysis of the different storage technologies as well as the analysis of ICT (information and communication technology) tools in order to enable large scale integration of local and small-scale storage to maximize the penetration of renewable energy sources (RES) as distributed energy resources (DER). The ICT architectures of the three SENSIBLE demonstrators in Évora, Nottingham and Nuremberg as well as the details of each integrated component were defined.
Due to the strong interdependence, regular communication between WP1, WP2 and WP3 was crucial and fruitful. Moreover, great effort was dedicated to the project’s further progress and its expected results. All tasks within WP1 were carried out as well as all deliverables were composed according to plan.


WP2:
This work package addresses energy conversion systems for electro-chemical, thermal and mechanical storage devices with advanced functionalities for integration to electrical grid.
Period 1 has been successfully completed with a large number of results related to power electronics topologies, safety issues, technologies, advanced functionalities, modelling and simulations of electro-chemical and mechanical energy storage systems.
Specifically, a detailed study about storage technologies as well as potential applications with special emphasis on those which will be implemented according to the defined use cases in Nottingham (UK), Évora (Portugal) and Nuremberg (Germany) demonstrators have been performed.
Furthermore, the requirements and functionalities for storage devices with power electronic interfaces to provide support to the grid have been identified and significantly developed.
On the other hand, a set of innovative alternatives of power converter systems for energy storage have been designed and currently assembled. Also, remote monitoring system has already been designed according to requirements from the demonstrators.
Finally, a range of modelling, simulation and literature based studies have been carried out in order to evaluate various aspects of safety and protection when energy storage systems are implemented in a real scenario addressing both electro-chemical and mechanical storages.
All tasks within WP2 has been carried out according to the initially defined work plan for period 1 and satisfied all expectations.


WP3:
In WP3 the energy management systems of the three demonstrators in Évora, Nottingham, and Nu-remberg which integrate and intelligently operate multi-modal energy storage components in buildings, collections of buildings, communities, and active distribution grids are being developed.
In this reporting period (M01-M18) the interfaces of the different energy management systems to the central ICT platform, the central services, and the devices to be controlled have been assessed and defined. A first prototype of the common real-time communication platform, used for all energy managemen

Progress beyond the state of the art and expected potential impact (including the socio-economic impact and the wider societal implications of the project so far)

a) Electrical and thermal storages in buildings

• Development and demonstration of a set of tools that together will be able to implement the Évora demonstrator use case 2. In this use case the Évora client’s assets (e.g. smart meters, water heaters, home energy management systems, photovoltaics / PV and residential energy storage system) will be boosted to the next generation of energy management. This advanced management strategies can leverage the benefits beyond the increase of a client’s self-consumption. One believes that if an Energy Service Provider can aggregately manage the energy and flexibility for a set of clients in a market framework, improvements can be achieved when comparing each client’s individual management due to the fact that scale effects can be used to minimize the energy market unbalance, to reduce system costs and to give distribution system operators (DSO) support to the grid management. In case of the Évora demonstrator, each SENSIBLE client will be equipped with the above mentioned residential assets and its integrated management will allow a quantification of these benefits.
• Development of energy management applications for the Meadows district – Nottingham demonstrator. It will support the Nottingham use cases regarding the deployment of PV, as well as new energy management capabilities for clients, which will contribute to energy price reduction increasing social welfare.
• Concept and development of a model-based Multimodal Building Energy Management System for commercial buildings that is able to
1.) operate the building integrated electrical/thermal storages and other components (PV, heater, heating ventilation and air condition, combined heat and power plant and heat pump) in a most energy efficient way
2.) participate on Day-Ahead and Balancing Power Markets by doing a forecast of the energy load profile at the point of common coupling and stick to that forecast, by using the build-ing integrated flexibility (of the components listed above), in order to minimize energy pro-curement costs
3.) The Building Energy Management System is an extension to a standard Building Automa-tion System, which allows a simple configuration and integration
• Development of special parameterizable “automation” models for all components that
1.) Have the required accuracy for the Energy Management System
2.) Can be used to solve the optimization problems suitable for controlling the components
3.) Are validated by using available components in the lab
• Development of a communication and control infrastructure for residential buildings
1.) Controlling of PV, thermal storages/resistive heater and electrical batteries
• Development of probabilistic forecasting algorithms that can be used for Energy Management to improve forecasting accuracy for electric and thermal base-loads, PV production and wind power


b) Operation of Active Distribution Grids with Local Storage Devices

• Development of several applications to enable MG operation and increasing grid reliability and flexibility as a response to high distributed renewable energy sources penetration at LV level. This developments came from advanced tools developed by INESC to manage this amount of distributed energy resources.
• Évora demonstrator will be provided with necessary equipment to enable islanding operation in case of MV grid failure or other events like planned grid interventions :
‒ Grid Automation
‒ Circuit breakers and LV (low voltage) switchgears
‒ Secondary substation
‒ Grid forming and grid tied energy storage systems
‒ Smart homes with:
- photovoltaic plants
- home energy management systems (HEMS)
- Smart meters
- Residential batteries
- Water heaters
• Whenever grid is in normal operation (main grid connection) LV storage will be explored in order to improve voltage profiles or minimi

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