Klimakonference i Sønderborg: Skræmmende udsigter, men konstruktive klimaløsninger

CITIES havde sit eget spor på konferencen ’100 % Climate Neutrality’ på Alsion i Sønderborg tidligere på ugen, samtidig med at der var et fælles spor med over 250 deltagere fra hele Europa. Her præsenterede internationale forskere alarmerende facts om klimakrisen og de medfølgende konsekvenser.

Alligevel kunne gæsterne gå hjem med en god følelse i maven, for konferencens viste også, at vi allerede har mange af løsningerne på de klimaudfordringer verden står overfor, skriver arrangørerne – herunder CITIES-partner ProjectZero – i en pressemeddelelse.

Nogle af Europas skarpeste klimahjerner var i ugens løb samlet i Sønderborg for at stille skarpt på den galoperende klimakrise. Og selvom der blev malet med den helt sorte pensel, da fakta og konsekvenser blev præsenteret, så kunne både gæster og deltagere ved konference går derfra med et grønt håb for fremtiden – forskere præsenterede nemlig en række løsninger, som kan forebygge konsekvenserne og bl.a. forbedre energieffektiviteten og ressourceanvendelsen.

”Et godt eksempel er det, som vi med en lidt teknisk term, som vi kalder ’energy payback-time’, som er den tid, der går, før elementet har produceret den energi, det krævede at fremstille det. For organiske solceller, som vi forsker i her på SDU Sønderborg, er den tid nu helt nede på 3-4 uger, lyder det fra én af initiativtagerne og arrangørerne af konferencen”, fortæller leder af Mads Clausen Instituttet Horst-Günter Rubahn.

De unge gjorde deres indtog på konferencen
Konferencen bød på indlæg fra ledende forskere og repræsentanter fra projekterne CITIES, ActNow, RollFlex, PE:Region, Energibyerne.dk og det ambitiøse ungeklimaråd fra byer i både Danmark, Letland og Tyskland.

”Jeg vil i den sammenhæng gerne fremhæve ungeklimarådet, som bragte vitalitet ind i konferencen som vi ikke tidligere har oplevet, og så er det jo i bund og grund dem det handler om. Det er deres fremtid”, vi kæmper for, siger Horst-Günter Rubahn.

De unge indtog scenen i forbindelse med konferencens afsluttende paneldiskussion, som understregede, at de ikke ønsker at pege fingre eller kaste skyld på tidligere generationer, men i stedet vil række en udstrakt hånd frem og opfordre til tæt samarbejde og en fælles front mod de klimaproblemer verden står over for.

Dermed var tonen en anden end da ikonet og den svenske klimaaktivist, Greta Thunberg, indtog talerstolen ved FN’s klimatopmøde i New York i sidste måned og beskyldte verdens topledere for at have stjålet hendes drømme og barndom. Men alvoren og engagementet var den samme.

Tager konklusioner med til København
Sønderborgs ProjectZero vision, har til formål at reducere Sønderborg-områdets CO2-udledning til et rundt nul allerede i 2029 og samtidig skabe nye kompetencer og grønne jobs i virksomhederne.

Også ProjectZeros direktør, Peter Rathje, er som medarrangør glad og stolt over klimakonferencen og dens konklusioner:

”Sønderborg og partnerne i bl.a. CITIES, Energibyerne.dk og ActNow-projekterne har været i gang i mange år. Konferencen bekræftede, at ambitiøse klimamålsætninger bedst løses i tæt samarbejde med lokale interessenter og at byer/kommuner er de nye klima-omdrejningspunkter når der skal sættes turbo på klimaindsatserne”, siger Peter Rathje, adm. direktør, ProjectZero.

Peter Rathje opfordrer Regeringen og ministrene til at styrke dialogen med byerne af de relaterede forskningsprojekter, hvor universiteter og virksomheder allerede samarbejder om de nye løsninger til verdens byer/kommuner.

Derfor vil Peter Rathje tage konferencens konklusioner med til bl.a. København, når 96 af verdens ledende byer i uge 41 mødes for, i endnu større skala, at sætte actions på verdens klimaproblemer i forbindelse med ‘C40 Mayors Summit’.

Læs mere om Sonderborg Youth Declaration

Professor Henrik Madsen (nummer fem fra venstre) fra DTU Compute og centerleder for CITIES deltog i panelet, der drøftede de unges Sonderborg Youth Declaration.

Sønderborgs ProjectZero i Sveriges Radio

Sønderborg Kommune har siden 2007 reduceret CO2-udledningen med 38,3 procent. Ambitionen er at have reduceret udledningen af drivhusgasser med 75 procent i 2025, og at kommunen er CO2-neutral i 2029.

Resultatet og visionen trækker overskrifter i nabolandet, hvor Sveriges Radio har været på besøg og talt med tennisklubben (der sparer mange penge ved at holde temperaturen på 13-14 grader i hallen om vinteren og have LED-lamper), et supermarked, borgmesteren og ikke mindst Peter Rathje, der er administrerende direktør i CITIES’ partner ProjectZero.

Hør indslaget her

De overbevisende CO2-reduktioner er formet af ProjectZero, hvor man arbejder med alle energirelaterede CO2-udledninger, som knytter sig til energiproduktion og energiforbrug.

De første 10-12 år handlede det om spare energi, men nu handler det mere om at producere energi, fortæller Peter Rathje til Sveriges Radio. For kommunen vil gennem Roadmap2025 indlemme store mængder grøn energi fra sol, vind og biogas.

Borgmesteren fortæller, at det på bundlinjen har kostet kommunen penge, men at man samtidig har stimuleret erhvervslivet, så der er skabt nye virksomheder og job takket være klimambitionen, som derigennem sikrer skatteindtægter til kommunen.

I den kommende uge fra den 30. september til 2. oktober, finder den internationale klimakonference ’100% Climate Neutrality Conference’ sted i Sønderborg, hvor CITIES har sit eget spor tirsdag eftermiddag og onsdag formiddag. Se programmet herunder.

PROGRAMME FOR CITIES – Center for IT-Intelligent Energy Systems in Cities

Tuesday, 1 October
13:00 – 15:00

TRACK A1: CITIES – From Solutions to Scalable Solutions

The high densities of population, energy consumption, and energy and communications networks in cities offer a great potential for flexibility in the energy system. Cities account for 80% of global energy consumption and emissions, which makes the urban environment an ideal setting for energy systems integration research. 

CITIES is a project which pioneers research into fully integrated city energy systems, building shortterm operational models that feed longer term planning models, considering the spatiotemporal variations, interactions, dynamics and stochastics in the energy system.

The project involves leading position of European academia and industry. The conference programme will include a combination of speeches from the international project participants, European Lighthouse projects (SCC1-H2020) and industry partners in the CITIES project.

  • Henrik Madsen – DTU Compute: Introduction to CITIES AGM- update
  • Annemie Wyckmans – NTNU: CityxChange
  • Kristina Bozhkova – Project Zero: SmartEnCity
  • Karl Sperling – AAU: Challenges and Opportunities of Implementing 100% Renewable Energy in Cities
  • Søren Skov Bording – Center Denmark: Center Denmark
  • Moderation by: Henrik Madsen, Project Manager, CITIES.

15:30 – 17:30
TRACK A1: CITIES – Smart Technical Solutions – Continued discussions…

  • Anders Andersen – EMD: Optimization of private wire operation of wind production and district energy in Hvide Sande
  • Nina Detlefsen – Dansk Fjernvarme: District heating – the key to a smart integrated energy system
  • Shmuel Oren – Berkely: Firming Renewable Power with Demand Response: An End-to-end Aggregator Business Model
  • John Bagterp Jørgensen – DTU: Model Predictive Control for Smart-Energy Homes
  • Christian von Scholten – NorthQ: Solutions for data driven buildings

Wednesday, 2 October
08:30 – 11:30

TRACK A1: CITIES – With a “building” focus?

  • Benjamin Kroposki – NREL: Integrated Energy Systems at Scale – Enabling more Renewable Energy
  • Gerhard Zucker – AIT: Digital Building Twins – What we can learn from industry
  • Hans Bloem – INIVE-DYNASTEE: The Building as Cornerstone of our Future Energy System
  • Magnus Hindsberger, Australian Energy Market Operator (AEMO) : Preparing for a step change: Challenges of a fast transformation to a renewable future
  • Henrik Madsen – DTU: Accelerating the green transition using the flexibility of buildings

Summer school engineering the green transition

During a week, 44 young researchers got ‘hands-on’ experience with statistical modelling techniques for smart energy systems and intelligent energy savings, including calculating solar energy gain in buildings.

44 PhD students and postdocs mainly from universities in Europe have spent last week of August at DTU Compute to learn about smart energy systems and intelligent energy savings.

The summer school was arranged by the two centres CITIES, lead by DTU (including the Interreg supported project Smart Cities Accelerator (SCA) and researchers from DTU, Section for Dynamical Systems), and FME-ZEN, lead by NTNU in Norway in collaboration with IEA EBC Annexes 67 & 71.

During the summer school named ‘Time series analysis – with a focus on modelling and forecasting in energy systems’ the participants were introduced to statistical techniques that are particularly useful for data driven modelling of energy systems. As well as the use of the models for e.g. control.

Summer school – Time series analysis – with a focus on modelling and forecasting in energy systems. PhD student Nasibeh Saffari (standing in the middle right in front of man with yellow t-shirt). (Evan Alexander, standing second from the right).

Engineering the future

This year was only the second time for the summer school about smart energy systems and Professor Henrik Madsen was very happy with the number of participants.

“These are the PhD students and postdocs to help the world achieve the green transition. These are not people, who are close to retiring. They are the ones who need to be part of this process,” he says.

“It is fascinating that there are so many coming from universities and knowledge institutions around Europe, and with backgrounds from universities all over the world, to hear about what we can do and learn about the technologies, we use in SCA, FME-ZEN and CITIES,” Henrik Madsen says.

Modelling building thermal dynamics

During the course, the students learned about how CITIES, FME-ZEN and SCA work with intelligent energy savings using data to characterize the thermal performance of buildings. And how to identify the dynamics of the building.

This applies both in terms of being able to use the building as thermal energy storage, but also to be able to pinpoint the easiest achievable energy savings – thus where building refurbishment gives the most value.

The summer school alternated between lectures and exercises to get ‘hands-on’ experience with the technique – for example, to calculate solar energy gain in buildings, and how it affects the building.

This is a technology, that PhD student Christoffer Rasmussen and his colleagues from DTU Compute has developed. Christoffer Rasmussen was also one of the teachers at the summer school:

“Usually, the solar energy gain is said to be dependent on the sun’s radiation from the outside, but the usual data driven models assume that the solar gain is proportional to the solar irradiation and constant throughout the day. It is not, as the Earth is turning.”

“In our data driven models we have made the solar energy inflow dependent on the sun’s position in the sky, such that you can account for, for example, a large window area towards one corner of the Earth and shading trees toward another. The incident angle of the sun rays will also change during the day which affects the amount of irradiation entering the building. All this, and more, are we now capable of estimating only based time series measurements,” explains Christoffer Rasmussen.

During the course, participants have learnt how the statistical modelling techniques work fundamentally and how to implement it in grey-box models (combining a partial theoretical structure with data) and in this way model the solar heat gain in buildings.

“At the end of the day, you want a good model that can describe the building dynamics and forecast different scenarios. It can be used, for example, to control the heating system of the building; how does the temperature react if you turn off or turn on the heat? How can you reduce the cost of heating the building if the consumer has variable energy prices, while using more green energy and keeping the consumer happy and warm?” says Christoffer Rasmussen.

Happy participants

PhD student Nasibeh Saffari from URV – Rovira at Virgili University in Catalonia, Spain is one of the participants at the summer school.

Usually, she works with artificial intelligence in the pharmaceutical industry. She is here because her friends praised last years summer school.

“It is interesting to work with models and algorithms. I am here to expand my knowledge. It is hard because I work with something completely different at home in Spain, but I’ve learned a lot over the week,” she says.

Another participant, American Evan Alexander, who has an MBA from Duke University, works daily for Maersk’s digitization group in Copenhagen, where data is analyzed through a forecasting program to optimize Maersk’s shipping business.

“It has been great! This is the second year that I spend a week of my summer vacation at a summer school at DTU. I am here to learn new modelling techniques and update my knowledge. I definitely expect to do it again next year because I get a lot of knowledge back home,” says Evan Alexander.

After the course, the students submit a report on the exercises they work on at the summer school.

PhD student Nasibeh Saffari (right)

Joint IEA task 60 and CITIES workshop on PV-Thermal systems at DTU on October 9, 2019, 13:00-17:20

Joint IEA task 60 and CITIES workshop on PV-Thermal systems at DTU on October 9, 2019, 13:00-17:20.

Hybrid solar panels that produce both electricity and heat is a technology on the rise. The combination of solar cells (PV) and solar thermal collectors (T) allows for various ways to optimize buildings’ energy systems. During this workshop, leading international experts will present the status of the PVT technology and present case studies where PVT collectors are integrated into buildings.

Detailed program – see below – participation is free. Please sign up before October 2nd.

The workshop will be held at DTU, building 101, Meeting room 1, Anker Engelundsvej 1 – 2800 Kgs. Lyngby.

Link for sign up: https://www.conferencemanager.dk/workshop-pv-thermal-systems

See the program for the workshop

Seminar: Bygninger og fleksibel fjernvarmeforsyning i et smart energisystem

Danmark skal være klimaneutral i 2050 – og CO2-udledningen skal være reduceret med 70 procent i 2030.

Hvilken rolle kan en mere fleksibel fjernvarmeforsyning i samspillet med bygninger der spille, og hvad er potentialet for energilagring i fjernvarmesystemet og bygningerne?

Det er blot nogle af de spørgsmål som vil blive taget op på en seminar, som Dansk Fjernvarme, Dansk Byggeri og Center Danmark holder tirsdag den 24. september 2019 fra klokken 12:30-16 i Fjernvarmens Hus i Kolding.

Program:
12.00 Registrering og frokost
12.30 Velkomst v/Kim Mortensen, Dansk Fjernvarme
12.45 Center Danmark som hub for smarte energisystemer v/Søren Bording, Center Danmark
13.00 Bygninger som energilager i et smart-grid v/Ole Michael Jensen, Statens Byggeforskningsinstitut 13.30 Fleksible varmekunder v/Kristian Honoré, HOFOR 
14.00 Pause
14.15 Erfaringer med lavtemperaturfjernvarme v/Wisam El-khatib, Albertslund Forsyningsselskab
14.45 Digitalisering i fjernvarmenettene v/Henrik Madsen, DTU
15.15 Datadrevet temperaturregulering i fjernvarmesektoren v/Peter Bode Nielsen, AffaldVarme Aarhus og Adam Brun, Aarhus Maskinmesterskole 15.45 Opsamling v/Michael H. Nielsen, Dansk Byggeri
16:00 Tak for i dag


Sted: Fjernvarmens Hus, Merkurvej 7, 6000 Kolding
Tilmelding og pris: Medlemmer af Dansk Fjernvarme og andre med login til Dansk Fjernvarmes system Klik her
Ønsker du ikke login kan tilmelding ske via mail på tilmelding@danskfjernvarme.dk
Tilmeldingsfrist: onsdag den 18. september 2019
Pris: 500 kr. plus moms

Professor: Think energy communities on a large scale

The electricity generation of the future gets a new player – the prosumer. For example, a homeowner with solar cells on the roof, who both consumes power and produces and sells his surplus power. GridTech and the Ingeniøren have taken a closer look at the energy landscape of the future – and talked with Professor, Henrik Madsen.

Local energy communities, where, for example, homeowners produce, share and trade in energy, will take over part of the energy production in Denmark. Electricity companies have a monopoly on transmitting power to the grid, but new EU rules now pave the way for energy communities. Several smart city projects at DTU including both CITIES and the Interreg-supported Smart Cities Accelerator work with energy communities.

This week, Teknologiens Mediehus’ pro-media GridTech and newspaper Ingeniøren are reviewing a report from Energinet Elsystemansvar og Dansk Energi, about the future of the electricity system, including the presumptions about how energy communities will characterize the electricity grid.

Among others, the centre leader of CITIES and the technical manager of the Smart Cities Accelerator, Professor Henrik Madsen, is quoted.

“Energy communities should be a larger area where multi-supply is shared – water, district heating, electricity and gas. If the energy community is just a few people trading electricity with each other, it does not give the same flexibility. It is also an expensive way to do it …,” he says to GridTech.

Read the full article (in Danish) on GridTech, which requires a subscription.

The article is also in the newspaper Ingeniøren on Friday, August 16, 2019. If you are a member of IDA, you have access through your membership of the trade union. Otherwise, find the paper edition.

Henrik Madsen is professor at DTU Compute and center manager at CITIES. Photo: Hanne Kokkegård

PhD defence, Friday 23 August 2019: COORDINATED PLANNING FOR RENEWABLE SMART ENERGY SYSTEMS

PhD defence: Louise Krog Jensen

THESIS: COORDINATED PLANNING FOR RENEWABLE SMART ENERGY SYSTEMS – HOW STRATEGIC ENERGY PLANNING COULD HELP MEET LOCAL AND NATIONAL GOALS

Denmark is in the middle of a transition towards a 100% renewable energy system, and strategic energy planning was introduced by Danish politicians in 2012. Policy makers and officials have described strategic energy planning as a task for the Danish municipalities, but this has not been made a mandatory task with allocated funding. This has led to scattered energy planning in Denmark, wherein some municipalities have chosen to develop strategic energy plans while others have chosen not to.

This thesis investigates the coordination needs that emerge in the planning for a 100% renewable energy system and how local strategic energy planning can be developed to meet these coordination needs. The study was designed as a case study of a Danish Municipality to investigate in detail the different processes of local strategic energy planning.

To outline the context of the case study and to frame the concept of strategic energy planning applied in the analyses, a theoretical analytical framework for strategic energy planning in the Danish context has been developed to guide the analyses of local strategic energy planning.

The outcome of the study provide an insight into how local strategic energy planning is carried out in a Danish municipality today. Furthermore, are a list of barriers for successful strategic energy planning in connection to identified coordination needs identified, followed by suggestions for how to address and eliminate these barriers at the national and municipal levels.

GET YOUR COPY: Please email louise@plan.aau.dk to get a copy of the thesis

ASSESSMENT COMMITTEE: Professor Poul Alberg Østergaard, Aalborg University (Chairman) Senior Researcher, PhD Per Sieverts Nielsen, Technical University of Denmark Professor Erik Oluf Ahlgreen, Chalmers University of Technology

SUPERVISOR: Associate Professor Karl Sperling, Aalborg University
MODERATOR: Professor Henrik Lund, Department of Planning, Aalborg University

TIME & LOCATION: Friday 23 August 2019, Rendsburggade 14, 9000 Aalborg, Room: 14 3.329

PHD LECTURE: 13.00 – 13.45
QUESTIONING: 14.00 – 16.00
RECEPTION: 16.00, at Rendsburggade 14, lunch room 2.349
HOST: Department of Planning, Aalborg University
REGISTRATION: Please sign up for this event no later than 19 August at 12.00 in this doodle

CITIES lecture on Friday, June 21 at 10:30 – Associate Professor Bri-Mathias Hodge, University of Colorado, US

Join the CITIES lecture on Friday, June 21 at 10:30 with the title “Designing a Sustainable and Reliable Future: Simulating Next Generation Energy Systems.” Our guest is Associate Professor Bri-Mathias Hodge, University of Colorado, US. He visits DTU in connection to the PhD Defence by Giulia De Zotti later Friday, where he is one of the examiners.

About: Associate Professor Bri-Mathias Hodge, University of Colorado, US

Associate Professor: University of Colorado – Boulder: Department of Electrical, Computer and Energy Engineering: 2018 –

  • Fellow of the Renewable and Sustainable Energy Institute (RASEI)
  • Lead a group focusing on energy systems simulation and renewable energy integration.

Chief Scientist: National Renewable Energy Laboratory: 2018 –

  • Principal Investigator on DOE, ARPA-E, and industrial projects with a yearly funding level of over $3.5M in FY19
  • Principal Investigator on projects in the areas of: power system communications, power systems data, solar power forecasting, wind power forecasting visualization, wind and solar resource assessment, grid sensing and measurement, commercial building electricity savings, microgrid design, and ancillary service products from renewable energy.


Doctor of Philosophy in Chemical Engineering: 
2006-2010 School of Chemical Engineering, Purdue University, West Lafayette, Indiana
Thesis Title: “A Multi-Paradigm Modeling Approach for Energy Systems Analysis” 
Advisors: Joseph F. Pekny & Gintaras V. Reklaitis 
Intern: Sandia National Laboratory, Exploratory Simulation Technologies  

VIDEO: Professor Henrik Madsen at CLEAN’s annual meeting

CITIES is a part of CLEAN – a cleantech cluster. CLEAN works as a facilitator of high-value cooperation between parties, by bringing members closer to markets, customers and peers. CLEAN does not close deals.

Last week Professor, research director and centre manager Henrik Madsen from CITIES and Smart Cities Accelerator participated at CLEAN’s annual meeting.

Here, a number of business leaders and researchers gave their bid on why partnerships are the way forward when we are to increase growth and innovation in Danish companies.

“For us at DTU, it is important that CLEAN facilitates the cooperation between us and small and large companies and end users,” says Henrik Madsen.

Hear more in the video. It is in Danish.

https://www.youtube.com/watch?v=nGcRxZMSgwM&feature=youtu.be

Press release: Focus on research resolves the problem with the electricity network capacity

CITIES’s partner in Center Danmark, EWII, published a press release yesterday, where their CEO, Lars Bonderup Bjørn, and project manager of CITIES, Henrik Madsen, commented on an analysis from Dansk Energi.

Today, an analysis was published by Dansk Energi, which concludes that the existing electricity network in Denmark does not have the capacity for the green transition that society is facing. It is, therefore, necessary to have an action plan from the politicians, which ensures that our electricity network is not overloaded – for example by the many electric cars we expect that will come on the road in the future.

At EWII, we support Danish Energy. Therefore, we have long been in the process of facilitating and initiating research in the area:

“We welcome this discussion. At EWII, we have chosen to invest money and employees in finding green solutions, because we completely agree with Dansk Energi that the electricity grid’s capacity is a problem we have to deal with,” Lars Bonderup Bjørn, CEO of EWII, says.

“We have, among other things, a green research centre, Center Danmark, which facilitates research into solutions in that area, and we have a number of projects that focus on precisely the challenge of the electricity grid capacity,” he says.

These include Flexible Energy Denmark (FED), which is a research project supported by the Innovation Fund Denmark. The project aims to develop green solutions using data and artificial intelligence, and in this way seek to utilize the green energy in the best possible way, so that no peak loads occur on the electricity grid in the “rush hour”, where everyone wants to cook, wash clothes and charge their electric car at the same time.

“It is absolutely necessary to prioritize research that supports the green transition while ensuring that our infrastructure is able to cope with the changes,” Lars Bonderup Bjørn says. He is also chair of the steering committee in Flexible Energy Denmark.

Professor at DTU Compute, Henrik Madsen, Head of Center for IT-Intelligent Energy Systems in Cities (CITIES), is one of the researchers participating in Flexible Energy Denmark:

“With the FED project, we get the opportunity to research a better use of green energy. So far, the electrical systems have mainly been designed so that production follows consumption. But in the future, where solar and wind energy will be dominant, there will be a need for electrical systems that are designed in such a way that consumption in the future must follow the production,” he says.

“The FED project will contribute to a reduction in the climate impact, better finances, and greater security of supply in the electricity grid. The project will lead to a more efficient energy system, where investments in electricity networks, wind turbines, solar energy production, etc. will be better utilized. The key to it is to utilize the great flexibility potential of the multi-supply systems through new digitization solutions – for example by storing the energy surplus from the wind turbines in district heating systems,” Henrik Madsen says.

For further information, please contact:

Lars Bonderup Bjørn, Chairman of Flexible Energy Denmark and CEO of EWII on tel. +45 23 73 71 18

Henrik Madsen, Professor at DTU Compute and Center Head of the Center for IT-Intelligent Energy Systems in Cities on tel. +45 20 83 43 04.

About Flexible Energy Denmark

The project is a four-year research project and has received the Innovation Fund Denmark’s largest grant this year of DKK 30 million. The total budget is DKK 40 million. There are 24 partners in the project, and they include universities, companies and stakeholders in the supply industry. EWII, together with DTU, is in charge of the project, which started on April 1, 2019.