The TU Delft Urban Energy Institute (UEI) organizes online scientific lectures for staff and students from the TU Delft and beyond. These online lectures will cover topics touching the wide interests in the Urban Energy field.They will take place every 2/3 weeks. You are very welcome to join these interactive events.
"Solar Urban: Utilising solar energy everywhere"
· Olindo Isabella, Associate Professor TU Delft Photovoltaic Materials and Devices group
· Hesan Ziar, Assistant Professor, TU Delft Photovoltaic Materials and Devices group
· Maarten Verkou, Research Fellow, Solar Urban at Photovoltaic Materials and Devices group
Date: Wednesday, 23 September 2020
Time: 14:00-15:15 CET
Moderator: prof Kornelis Blok
Register: A link will be sent to you after registration via this form one day before the event.
Cities are in the midst of transitioning to clean and green energy systems. The question remains: how can we embed large shares of solar energy across the built environment? And how can we do this in a cost-effective and innovative way? This lecture will be led by researchers from the Solar Urban program at TU Delft who are working on exactly this. The speakers will introduce the Dutch PV Portal, a tool that can be used by policymakers and homeowners to accurately predict the potential for solar production. They will also share results and key insights from solar projects deployed in Amsterdam and the TU Delft campus. Come and learn about the opportunities for utilizing solar energy everywhere in the built environment.
Olindo Isabella is an Associate Professor and the head of the Photovoltaic Material and Devices group at Delft University of Technology. His areas of expertise are opto-electrical modelling, thin-film and wafer-based silicon solar cells, smart PV modules, PV-powered multi-functional building elements and comprehensive modelling of XIPV systems. He is the principal investigator of Solar Urban theme of TU Delft Urban Energy Institute and of the Advanced Metropolitan Solutions Institute in Amsterdam.
Hesan Ziar is an Assistant Professor within the Photovoltaic Materials and Devices group at the Delft University of Technology. He has collaborated with several companies and research institutes within consortiums and research projects including photovoltaic system installation optimization (PVISION) and innovative PV systems on water (INNOZOWA). In PVMD group, he has contributed to several research topics including soiling on PV modules, PV potential map for Dutch highways, Indoor PV-based lamp, probability-based shading tolerability for PV module, and geometric spectral albedo. His research interest includes photovoltaic systems, their modelling and applications and associated power electronics. His vision is that every surface in urban areas can potentially contribute to sustainable energy transition.
Maarten Verkou is a Research Fellow within the Photovoltaic Materials and Devices group at the Delft University of Technology. Maarten completed his BSc degree for Mechanical Engineering in 2017 and MSc degree for Sustainable Energy Technologies in 2019, both at the TU Delft. In October 2019 he started working as a researcher for the Photovoltaic Devices and Materials and in November 2019 he joined the AMS Institute as a part-time research fellow. His areas of expertise include PV system modelling, concept designing and prototyping. He has gained experience with real world data science as well as multi-layer geospatial analytics in the field of solar energy and low-voltage electrical grids.
NEXT WEBINAR7 October: tbd
21 October: Prof Greg Keeffer - Queen University Belfast
4 November: Niek Mouter - TU Delft
Former lectures: Scroll down
Former Lunch Lectures
"Sustainable Heating Implementation of Fossil Free Technology (SHIFFT); presentation of current developments in the EU-Interreg 2 Seas SHIFFT project"
Presenters: Thomas Hoppe (TBM; TU Delft project lead in SHIFFT; WP2 lead); Michiel Fremouw (BK; WP3); Fionnghuala Sherry-Brennan (University of Exeter; WP2)
6 September 2020
Space and water heating represent a large fraction of overall energy consumption across the EU Member States, and around one third of carbon emissions. Dependence on fossil fuels has made the heat sector hard to decarbonise. There is an enormous potential to reduce CO2 emissions in the sector by shifting to low carbon heating alternatives, but there remain many barriers to doing so.
SHIFFT is an Interreg 2 Seas project, running from 2019-2023, promoting cross-border cooperation between four European countries: The Netherlands, France, Belgium and The United Kingdom. The main objective of the SHIFFT project is to stimulate the adoption of low-carbon heating technologies in existing buildings. It will take multiple routes to achieving this through its three technical work packages. Work Package 1 devises city strategies for four municipalities within the project as well as producing general guidance for cities to make their own strategies for the move to low carbon heating. Work Package 2 focuses on developing strategies for the fullest possible inclusion of communities in co-developing and co-creating low carbon heating strategies at the local level. Work Package 3 concerns delivery of exemplar community low carbon heating projects, and involves four investment projects.
Delft University of Technology is involved in all three work packages. It is leader of Work Package 2, and is involved in Work Package 3 to design, monitor and assess technical performance of heating technologies implemented in the investment pilots. From Delft University of Technology the faculties of Architecture and the Built Environments Technology, as well as Policy and Management are involved in the project.
The presentation will provide an overview of preliminary results and current developments in SHIFFT.
See for more information:
· The SHIFFT project website: https://shifftproject.eu/
· The TU Delft SHIFFT website: https://www.tudelft.nl/tu-delft-urban-energy-institute/research/projects/shifft/
1 October: Co-Creation in Practice: How Science, Cities and Citizens Tackle the Sustainable Heat Transition
"Saving energy (cost) with a flexible and predictive climate system adapting to a volatile energy grid"
by Frank Visscher - Priva ECO
2 September 2020
Priva ECO Building is like a smart chess computer for buildings. It's focused on an optimal building climate, installation performance and reaches up to 40% of energy savings. Within an increasing dynamic environment of diverse utilities, energy streams, building behaviour and balance issues in the grid the smart 'chess computer' will make the most optimal choice to create the required indoor climate at lowest possible cost. It's a smart building automation solution based on a digital twin and A.I. technologies that will be the new way to steer climate installations in buildings, grids and Urban Sustainable Delta's.
• Click here to watch the lecture
• Click here to download the presentation
• Click here to go the the blog of Frank Visscher
"Data center heat in Amstel III for new highrises"
By Richard Ruijtenbeek – Municipality Amsterdam; Senior advisor energy and circular development Amsterdam
1 July 2020
How to be sustainable in BENG 1,2 and 3, and how to develop a data-net for highrises, I will explain in this presentation. Amsterdam is aiming for energy neutral building. In Amsterdam Southeast we are building until to the year 2040 approx. 40.000 new houses. Most of this houses are high-rise buildings from approx. 500-1000 houses and 70-120m1 high.
Richard Ruijtenbeek is a manager and engineer that focuses on decision-making. He is specialized in sustainable projects (building/installation & infrastructure & forest & civil). A tenacious and grounded mediator, who realizes complex projects within a team with perseverance and vision.
• Click here to download the presentation. A recording is not available.
"Affordable and scalable construction."
Renovation and new construction solutions in a natural gas-free living and working environment
By Folkert Linnemans; Bouwgroep Dijkstra Draisma (BGDD)
17 June 2020
Folkert Linnemans is innovator at Bouwgroep Dijkstra Draisma (BGDD), winner of the “Koning Willem I price” for sustainable enterprising. BGDD is focusing on the energy transition and is developing innovative and scalable products for the housing market (renovation / new buildings) and utility market. BGDD was the first construction company who developed an industrial product and production facility, now 5 years ago. As a partner in the Future Factory, the Dreamhûs (at the Green Village), a geothermal developer (heat from 2,5 kilometers deep) and as an owner of several ESCO’s (energy service companies) BGDD is a pioneer for new business models in the sector. Folkert is involved from the start and is talking about the lessons learned and the next steps of payable energy transition, during the lecture.
Folkert Linnemans is a Chemical Engineer and has 16 years experience in the energy sector. He is working with the Rocky Mountain Institute on a new program on industrialization of facades in California. Biense Dijkstra (CEO of BGDD) and Folkert Linnemans were involved in the climate agreement as a representative of the sector.
• Click here to view the recording
• Click here to download the presentation
"How can cities contribute to local energy solutions?"
by Joop Oude Lohuis - Director Energy Programme at Municipality of Utrecht
3 June 2020
The Climate Agreement that was signed on 28 June 2019 signified an important move in the climate policy arena in the Netherlands. An ambitious target was set for 2030 and the focus shifted towards implementation of changes in the heat supply system on the local level. Mandates and regulation that are currently on a national scale will be transformed towards decision making on a local level. What does this mean? Are municipalities ready for these new responsibilities? What has already changed? What are the challenges?
'Future Factory today – tailor made mass customization to speed up energy renovation'
By Lianda Sjerps-Koomen
19 May 2020
Lianda Sjerps-Koomen is manager business development at Rc Panels, an innovative tech building factory. She has more than 25 years of experience in management and innovation in energy and sustainable urban development. She is member of the core team of the Dutch mission oriented innovation program “Future Factory”, joining 29 organisations to work on system change for mass customization in renovation packages. Digitization, industrialisation and integration are no longer dreams only. Nor are they scary or straight jacket. The lecture shows how the building skins of tomorrow are already made today, and gives a sneak preview on the innovations worked at.
Click here to watch the recorded lecture
Click here to download the presentation
'District heating sustainability, can economics beat physics? (based on Purmerend example)'
by Michiel Korthals Altes
6 May 2020
Michiel graduated from the Ecole Centrale de Paris in 1990 with an MSc in Energetics. He delivered large projects in the power sector for technology suppliers (Alstom) and utilities (Essent/RWE) before contributing to the energy transition of the Purmerend District Heating.
'A geothermal campus: heating up the energy transition'
by Phil Vardon - Associate Professor in the Department of Geoscience and Engineering and leads the Geothermal Science and Engineering Theme
15 April 2020
The energy transition is in full swing, electricity generation continues to reach new records for renewable production. Sustainable heat generation however lags behind, and makes up the largest portion of energy use. Our campus and our researchers can play a big role in the development of sustainable heat. Large scale research and demonstration projects can speed up innovation and industry uptake, and I believe that is also our role as a university. I will outline the current activities being carried out on campus related to geothermal energy, including a 2km deep geothermal well, leading to an acceleration of sustainable heat use.
- Click here to download the presentation
- Click here to watch the lecture
'The energy transition through the eyes of a developer'
by Maarten Kokshoorn - Heijmans BV
21 January 2020
The energy transition is a very dynamic process, in which the energy issues that up to now were obvious, are suddenly no longer there. People are asked for other (new) products, for other collaborations and for new role allocations. A lot is changing and a lot is going to change. Heijmans is a company that focuses on achieving a sustainable and healthy living environment. We take care of area development, the construction of homes and utility buildings and the construction of infrastructure and the long-term management of these components. In this lecture I will discuss the developments of the energy transition from the perspective of Heijmans to the future. I also zoom in on a number of practical examples from current projects and the energy transition to provide insight into what we encounter when creating an energy-neutral neighbourhood.
Click here to watch the recording.
Title: 'Photovoltaics in the urban environment: developing a fast, accurate and remote 3D-based energy potential simulation framework'
By Olindo Isabella, Associate Professor TU Delft Photovoltaic Materials and Devices
Click here to watch the lecture
12 December 2019
The role of photovoltaics (PV) in urban environments is of increasing importance. New technologies and concepts will facilitate the adoption and integration of photovoltaic technology in the built environment. However, as resources are always limited, it is fundamental to determine how and where to place PV systems in the urban fabric. In order to make the right decisions, we need tools that can calculate the solar energy potential considering the available solar resources and the shape of the landscape. In this work, we propose a framework across four levels of detail to quickly, accurately and remotely estimate the annual irradiation in urban landscapes. This framework enables urban planners, architects and PV system designers to accelerate the decision-making process and find integral energetic solutions for the buildings and structures of the cities of the future.
Olindo Isabella received the M.Sc. degree in Electronics Engineering from the University of Naples Federico II in Italy and the PhD degree cum laude in advanced light management techniques for thin-film silicon solar cells from Delft University of Technology. He was visiting researcher at the National Institute of Advanced Industrial Science and Technology in Tsukuba (Japan) and in February 2013 he engaged an academic career at TU Delft. Currently he is Associate Professor and since January 2019 he is the head of the Photovoltaic Material and Devices group at Delft University of Technology. His areas of expertise are opto-electrical modelling, characterization and implementation of advanced light management techniques in thin-film and wafer-based silicon solar cells, smart PV modules, PV-powered multi-functional building elements and comprehensive modelling of XIPV systems. For these developments, he is the principal investigator of Solar Urban theme of TU Delft Urban Energy platform and of the Advanced Metropolitan Solution in Amsterdam. He has been or is involved in the organization of OSA, MRS meetings, IEEE PVSC and nPV workshop conferences, contributed to four scientific books, has 10 patent applications and his H-index is currently 25 (Google Scholar).
Title: "Energy, Space and City - Urban Energy Systems"
By Taco Kuijers - Project manager / Urban Designer at Generation.Energy
19 November 2019
Taco makes analyzes, develops strategies, designs for the energy transition and supervises design studios.
He graduated at the University of Technology Delft with the faculty of Architecture and the Built Environment in 2008. He was organizer for the International Design Seminar INDESM 2000.
Click here to watch the lecture
Title: "It’s not easy being green"
by Gerdien de Vries - assistant professor Public Management and Organisation at Delft University of Technology; faculty of Technology, Policy and Management
17 September 2019
In order to reach climate goals in the long run, people have to act sustainably in the short run. Unfortunately, however, environmental policy goals are hardly reached. People find it not easy being green. This presentation introduces psychological barriers (such as cognitive biases, emotions, expectations, and perceived hassle) as important reasons for this shortfall. It will explain the barriers with examples, reveal why they occur, and identify who are most vulnerable. Finally, recommendations on possible ways to overcome these pitfalls will be provided for policymakers and other practitioners.
Title: "Business opportunities and policy challenges for the adoption of energy flexible buildings"
by Erwin Mlecnik - Management in the Built Environment, Faculty of Architecture and the Built Environment, Delft University of Technology, The Netherlands
18 June 2019
The introduction of smart electricity and heating networks requires buildings to become ‘smart grid ready’. In this framework it is expected that future buildings will be able to manage their demand and generation according to, not only local climate conditions and user needs, but also related to signals in case of limited availability or abundance of energy on the connected distribution network. While case studies prove that this is technically feasible, the adoption of such energy flexibility in buildings depends largely on social and commercial acceptance. The development of energy flexible buildings will introduce new challenges for various stakeholders, which have been researched in the framework of the IEA EBC Annex 67 Energy Flexible Buildings. This lecture identifies key opportunities and barriers experienced by stakeholders in various countries. The research results illustrate the need to develop related business models and supporting energy policy.
Click here to watch the lecture
Click here to download the presentation
Title: “FED up with fossil energy" - Fossil-free Energy Districts”
By Stina Rydberg and Claes Sommansso, both Johanneberg Science Park, Gothenburg, Sweden
14 May 2019
The Swedish project FED, Fossil Free Energy Districts, visits TU Delft and will share findings and results at the Energy Platform Lunch Lecture.
By balancing the urgent need of energy transition with an ever-increasing energy demand, FED aims to play a key role in creating fossil free cities in Europe.
FED has established a district scale innovative demonstrator of a local energy marketplace, uniquely integrating electricity, district heating and district cooling. In line with the aims of the Energy Union and EU energy targets, FED enables a fossil-free and secure supply of energy as well as long-term business models for a future energy market with higher use of sustainable energy sources.
FED is financed by UIA, Urban innovative Actions.
Stina Rydberg, Johanneberg Science Park is the project manager for FED. Stina is an experienced project manager after several years working with projects within sustainable development and urban development. She has a solid energy background after working with development projects in electricity production at the Swedish energy company Vattenfall. She holds a MSc in Chemical Engineering from Chalmers University of Technology in Gothenburg, Sweden.
Claes Sommansson, Johanneberg Science Park is vice coordinator for the FED project and responsible for the Energy Arena at Johanneberg Science Park in Gothenburg (Sweden). He previously served as Research and Development manager at Gothenborg Energi (city owned power supply company).
Title: City neighbourhood decarbonisation from theory to practice
By Riccardo M. Pulselli; Project manager @ Indaco2
10 April 2019
Sustainability takes its roots in “non equilibrium” thermodynamics and evolutionary physics. Particularly the concept of dissipative structures by Ilya Prigogine applies to cities and allows for raising awareness on the climate crisis.
Strategies for climate change mitigation in cities start from knowledge of real “dissipative” processes to identify challenges and opportunities. Carbon accounting is among monitoring tools to inform administrators, citizens and other stakeholders and address choices for climate action. In particular, a Carbon Accounting framework have been developed within the City-Zen project and demonstrated through roadshows in different European cities. The assessment of greenhouse gas emissions allowed to inform urban policies and design through clear communication and to estimate the effects, in terms of Carbon Footprint mitigation, of integrated measures for carbon neutrality.
Riccardo M. Pulselli, architect, PhD in environmental sciences, is founder and president of Indaco2 - Indicators, Assessments and CO2, a company focussed on environmental accounting applied to manufacturing and agricultural processes, buildings and building technologies, neighbourhoods and cities. He is author of City Out of Chaos. Urban Self-organization and Sustainability (WITpress 2009 – coauthored with Enzo Tiezzi), The Moving City (Laris 2011), The Rampant Garden (Edifir 2014 – coauthored with G Paolinelli and S Bastianoni). He has been visiting researcher at MIT (Boston, US), WUR (Wageningen, NL) and TU Delft (Delft, NL). He has conducted research, in collaboration with TU Delft, for assessing the effects, in terms of carbon footprint mitigation, of energy transition plans in European cities.
Title: ''Cost effective Heat-Transition'
By Folckert van der Molen; researcher Climate Air and Energy; PBL Planbureau voor de Leefomgeving
19 maart 2019
Folckert van der Molen is an energy and sustainability researcher at the PBL Netherlands Environmental Assessment Agency. He started his career there after his studies in Liberal Arts and Sciences at Utrecht University, focusing on Economic Geography. Research areas include sustainable heating in the built environment and regional energy transition processes. Currently working towards facilitating the implementation of the goals for heating in the built environment from the national Climate Agreement on a municipality level in the Netherlands.
This presentation provides an overview of regional challenges in planning the heat-transition of the built environment and proposes methods for solving these challenges. Lessons are drawn from a recent regional case-study conducted in the Drechtsteden region. This study shows how national policy van be translated to a region and municipality level through an analysis of technical and economic solutions for reducing the demand for natural gas. In this case study the researchers participated in a regional decision-making process. Some meta-conclusions can be drawn about effective stakeholder participation and implications for national policy.
Title: ’Cool heat grids’ for sustainable urban energy systems
By Sabine Jansen; Assistant Professor faculty of Architecture and the built environment
15 January 2019
This lunch lecture presents ongoing projects on (ultra) low temperature heat grids for sustainable urban or neighbourhood energy systems, as one of the sustainable alternatives for heating with natural gas.
In the built environment, many heat sources are available at temperatures between 15 and 30 degrees, such as for example waste water, surface water, cooling from supermarkets or datacentres, and solar thermal energy. Also, the heating and cooling demand of buildings exist in this temperature range, or can make use of these low temperature sources by upgrading the heat with a heat pump. In this lecture two projects on this topic are presented. The ‘KoWaNet’ project (www.kowanet.nl) aims at developing smart thermal heat grids that intelligently connect all these sources and demands. These smart and open ‘cool heat grids’ will optimally connect all users – producers, consumers and those that do both – in order to efficiently deliver sustainable, economic and secure heat or cold to its customers. The second – recently granted - project is on low temperature feed-in solar heat grids. This energy concept will be briefly explained and the influence of the insulation level of the connected buildings will be discussed.
Sabine Jansen works as assistant professor at the faculty of Architecture at Delft University of Technology since 2014. She is involved in education on sustainable energy systems as well as various research projects related to the energy transition for the built environment. She graduated from the same faculty in 2002. After several years of experience at various engineering consultancies, she received her PhD degree in 2013 on the application of the exergy concept to energy systems in the built environment.
At the moment she focuses on two research topics: bringing innovative and future-proof energy solutions into practice, and integrating circularity into the challenge of the energy transition, which is actually a 'resource transition'.
- - Download the PowerPoint presentation here - -
- - Watch the lecture here - -
Title: ‘Pushing design boundaries to optimize the energy performance in the built environment’
By Cristina Jurado López – ABT; Energy specialist in the built environment
18 December 2018
At ABT we push the boundaries of innovative and integrated design creating tomorrow’s world today. Our approach is one of think-act, from sketch to prototype. We develop ideas with designers, create integral engineering solutions and deliver results. Our engineers master the fields of structural design, civil engineering, executive architecture, building physics, MEP and energy.
In our mission of creating tomorrow’s world today we develop integral building designs. ABT energy team focuses on implementing integral active and passive design strategies to solve tomorrow’s energy challenges in the Dutch built environment. During this presentation, ABT will give an overview of projects where these architectural and engineering strategies were implemented to optimize energy performance and interact with neighbouring (Smart Energy-) buildings.
Christina is an energy specialist and passionate about solving future energy challenges in the built environment
• Download here the presentation
Title 'Smart Energy Services on TOON'
By Stephen Galsworthy – Head of Data Science, Quby
20 November 2018
Quby is the creator and provider of Toon, a leading European smart home platform which is sold in the Netherlands via Eneco. We enable Toon users to control and monitor their homes using both an in-home display and app. As a data driven company, we use AI and machine learning to generate actionable insights for our end users. Using the data we collect via our IoT devices we have introduced multiple data driven services, including an energy waste checker and a boiler monitoring service.
In this talk, Stephen will describe how Quby has developed services for the Toon platform, and will show multiple use cases relating to the connected home. We’ll take a look at how Deep Learning algorithms are used to detect inefficient appliances from electricity meter data and how streaming algorithms allow users to be alerted to anomalies with their heating systems in near real-time. Stephen will share the experiences from the Data Science and Data Engineering teams at Quby with bringing data science algorithms from R&D to production and the lessons learned in offering multiple data driven services to hundreds of thousands of users on a daily basis.
Stephen Galsworthy is the Head of Data Science at Quby, the creator and provider of Toon, a leading European smart home platform. In this role, he is responsible for the development of data driven services for residential customers and partners such as utilities and insurance providers. Stephen holds both a Master’s degree and Ph.D. in Mathematics from Oxford University and has been leading Data Science teams since 2011.
Title 'Transforming the household heat demand; impact and role for the DSO'
By Vincent Dekker - Senior Consultant Strategie & Innovatie, Liander, Assetmanagement Strategie & Innovatie
16 October 2018
Abstract: In order to achieve the climate goals, the built environment must become sustainable. We have to move away from natural gas to heat our homes. This transition has a significant effect on the energy infrastructure of the network managers.
This lecture will explain the effects and the immediat impact. We will zoom in on the role of the network operator in this transition and a tool will be demonstrated in which the heating solutions per district are visualized.
Vincent has a master in astronomy. At Liander his scope is: neutron stars, magnetars, heat pumps, heat storage,superconductivity and data analysis.
Watch the presentation slides here
Watch the recordings of the lecture here