Advanced tools for strategic planning and energy efficient operation in public buildings and cities

A consortium of:

In collaboration with:

MindCity

BEEMind tools : MindCity

                 High resilient cities in practice

This solution helps municipalities and organizations go digital and manage their data effectively on a local level.

 

It is a key tool for smart cities, energy planning, adapting to climate change, and making decisions about urban retrofitting

What does it do? It checks out KPIs for buildings and helps planning for energy transition and climate change adaptation:

  • City microclimate model (100x100m)

  • Rates how buildings are vulnerable to climate issues

  • Forecasts energy retrofitting and adaptation strategies

  • Sends heat wave communications—4 days ahead

  • Supports designing urban green spaces and shelters

Description

Geo-AI powered models

We develop machine learning and Graph Convolutional Neural Network (GCNN) models

To enable learning patterns from geo-structured data (buildings, streets, use, energy, etc).

Extrapolation of KPIs for all buildings when no real data is available

It is a digital landscape, a dynamic knowledge graph that brings urban exploration to life.

Definition of future climate mitigation and adaptation scenarios

BEEMind tools : MindCity

BEEMind tools : MindCity

  • Integration, processing, and visualization of large amounts of urban data at the building level

  • AI powered models to improve cities and make them more resilient against extreme weather events.

  • Figuring out specific geospatial indicators that connect to climate action and the shift towards cleaner energy.

  • Evaluation of vegetation and urban climatology scenarios

Funcionalities

Cities 4.0: Environmentally Smart

  • Facilitates strategic decision-making in the energy, climate, and urban planning fields

  • Optimizes resources and processes for large-scale city data analysis

  • Improves coordination between technical departments and citizen interaction

  • Highly scalable to any city in Europe

Benefits

BEEMind tools : MindCity

Use cases

  • Optimizes resources and processes
    For large-scale analysis of geo referenced urban data

  • Improves coordination
    Between municipal technical departments and citizen interaction

  • Scalability

    Straightforward for most of Spanish regions, and with adaptation of income data sources, scalable to other EU regions

  • Climate Vulnerability map
    Detect areas with people that might be in vulnerability against climate conditions based on cross-sectional analysis of KPIs.

  • Support buildings energy retrofitting
    Identify and prioritize buildings with the greatest demands and retrofitting potential.

  • Actions to adapt to climate disruptions
    Optimizing climate shelters location, better climate communications with citizens, estimate greening and shadowing areas potential...

Impacts

Cities 4.0: Environmentally Smart

Case Study: Climate Vulnerability Map of Barcelona

 

 

 

 

Vulnerability map:  Climate-Ready BCN

Source: ICLEI Action Fund 2.0
Budget: €1M
Objective: Support citizens and public authorities in adapting to extreme climate events and reducing energy poverty
Implemented: From May 2023 to December 2025

Climate Vulnerability in Barcelona at building level

The Climate Vulnerability Map of Barcelona is a geospatial analysis tool designed to identify the buildings most at risk during extreme heat events.

 

It evaluates key performance indicators (KPIs) for buildings and supports climate change planning

 

It provides an assessment of all residential buildings in Barcelona(61,000)

What is it?

CVI

How we estimate the Climate Vulnerability Index (CVI)

Vulnerability index to asses heat wave resilience

Climate vulnerability is typically framed within three key dimensions defined in the IPCC's Third Assessment Report (Intergovernmental Panel on Climate Change) in 2001:

 

Exposure
Sensitivity
Adaptive capacity

 

Although most studies classify indicators using these three categories, our index introduces additional levels to provide a more nuanced analysis while remaining aligned with the traditional framework.

Climate variability and extreme events

  • Track changes over time through indicators such as temperature, precipitation, and vegetation cover. Local data helps assess risks related to heatwaves, droughts, and floods.

Energy indicators

  • Explore energy use patterns (gas and electricity consumption). Indoor temperature data is crucial for identifying households at risk during extreme heat events.

Building characteristics

  • Assess features such as age, use, and size to understand their impact on energy use, indoor comfort, and structural vulnerability.

Indicators groups (KPIs)

Vulnerability map

Infrastructure indicators
Assess the availability of essential public services (schools, climate shelters, social housing) and the strength of social networks to understand community support capacity.

Health indicators
Analyze the relationship between climate and health outcomes to identify vulnerable populations and prepare healthcare systems.

Demographic indicators
Not all groups are equally vulnerable. Analyzing factors such as gender, age, income, migration status, and unemployment allows for the development of more detailed CVIs.

Socioeconomic indicators
Understand urban resilience through factors such as housing costs, energy poverty, household debt, and gaps in social protection, which worsen during economic crises.

Vulnerability map

Indicators groups (KPIs)

 Climate vulnerability Index (CVI)

 

 

  1. Data preprocessing – Select input data to calculate the indicators.

  2. Framework selection – Determine which indicators positively or negatively affect the CVI.

  3. Granularity definition – Select the spatial scale.

  4. Normalization & weighting – Harmonize indicators and assign weights.

  5. Aggregation – Combine indicators into groups to obtain a final value.

 

 

⚠️ Challenge: Each study adapts its CVI to its specific context and priorities.

CVI Construction

Vulnerability map

Our approach:

 

 

 

 

Building the CVI

Vulnerability map

Use of empirical cumulative distribution function to assign a value to each building for a given KPI:

 

🎯 Outcome: A practical tool for both policymakers and citizens to explore climate vulnerability and support decision-making.

 Interactive map and CVI: 

  • View individual KPI layers
  • Customized weights
  • Adaptable CVI

 

Use Calculation of aggregated value for a typology T

 

Use Calculation of aggregated value for a typology T

 

Data sources & harmonization

BEEMind: Data ontology

The ontology at the core of our solutions

 

Understanding and organizing data is as important as the algorithms themselves

 

 

 

Applied semantic web technologies:

Massive data integration

3. Data at building level

2. Data at census code level

1. Data at postal code level

How to integrate and link data?

  • Cadastral (INSPIRE + CAT Files). Building characteristics, horizontal distribution. Inferred: buildings shadows analysis, wall types and orientations, patios, administrative metadata (addresses, postal codes..)
  • Energy Efficiency Certificates. EPCs at dwelling level, including information about envelope characteristics and HVAC systems.
  • Real gas and electricity consumption readings (monthly at building level, hourly at postal code level)
  • Meteorological data (ERA5LAND, and UrbClim project).
  • Socioeconomic indicators (Census, income atlases, cost of living...).
  • Climate Shelters. Including characteristics  and opening timetables
  • Administrative layers
  • Normalised Difference Vegetation Index (NDVI). An aggregation of a buffer around each building was computed
  • Tourism-related establishments
  • Health data. Mortality and morbidity due to extreme heat events

Main data sources

Heterogenous data ingestion

Massive data integration

Data sources

big numbers

Massive data integration

61,000

1 Milion

200.000

Buildings

Households

EPC

10,222

3 Milion

20.000

Zones (microcli-mate model)

KPIs visualized

Heat waves warnings and tips

1,050

Households

Interoperable web semantic frameworks

  • Standardized schema (OWL/RDF Turtle) and shared vocabulary for describing IoT devices, buildings and urban areas

 

  • Reuse & interoperability

    • buildings, physical objects: saref, s4blg, s4city, s4agri
    • systems, measurements: ssn
    • geospatial: geosp
    • units: qudt

BIGGONTOLOGY:

Semantic reference ontology

Knowledge graph

Knowledge graph:  Structured representation that connects geospatial data with various entities and their relationships, enabling better analysis and reasoning about geographic information.

Modelling

  1. KPI prediction model: heterogenous temporal graph

MindCity:  Modelling

Vulnerability map

Graph Convolutional Neural Network (GCNN) models

To enable learning patterns, fill knowledge gaps and predict scenarios from geo-structured data

Output examples:

- Building-level energy consumption

- Building-level energy demand

- Close-to-building average land

surface temperature

- Building-level indoor thermal comfort

2. Weather downscaling microclimate model

Complementary models

Weather 

CatBoost decision tree

 

2.1. Heat waves prediction and communication

Complementary models

Weather 

3. Thermal demand models of buildings

Simulation of the thermal energy demand of 37,000 residential buildings.

The simulation engine is based on Reduced Order Grey Box Models (RC models) trained with TRNSYS simulations:

  • Building-level predictions for space heating and cooling
  • Total energy needs under 3 typologies and 17 archetypes and 5 indoor set point temperatures
  • Predicting 5 retrofitting scenarios and 2 HVAC systems

Complementary models

4. Shading evaluation based on Lidar data

Complementary models

1- Build the Digital Surface  Model (DSM) of a whole municipality (urban+rural).

2- Estimate the shadows based on DSM raster at the desired geographical and time resolution.

3- Estimate the DEM for further shading estimation

4- Merge with solar radiation data and aggregate the results.

IT architecture

Ontology based big data architecture

  • Orchestrates massive energy and urban data in real time.
  • AI-powered analytics, and semantic harmonization to drive energy efficiency and actionable decisions for real-time saving

ENMA

open-source big data architecture developed by BEE Group

G. Mor; J. Vilaplana; S. Danov; J. Cipriano; F. Solsona; D. Chemisana. EMPOWERING, a Smart Big Data Framework for Sustainable Electricity Suppliers. (2018) IEEE Access. vol. 6, pp. 71132 - 71142.

Reference paper

ENMA expanded

Software architecture

Interactive visualization

MindCity:  Climate Vulnerability Map Visualization

Export and data visualization

Vulnerability map

Vulnerability map

https://maps.climatereadybcn.eu/

Index evolution by streets and buildings

Queries and forecasts

 

Vulnerability map

MindCity:  Climate Vulnerability Map Visualization

Thank you

Gerard Mor

Data Scientist in BEEGroup

gmor@cimne.upc.edu