TEESlab - Technoeconomics of Energy Systems laboratory

What TEESlab - Technoeconomics of Energy Systems laboratory does

TEESlab (Technoeconomics of Energy Systems laboratory) is a 17-person university research laboratory based at the University of Piraeus in Greece, focused on energy system modelling, strategy, and policy analysis. The lab combines quantitative modelling with systems analysis and management strategies, producing techno-economic research outputs that address energy transition, energy poverty, demand-side management, decarbonisation pathways, building renovation, and renewable energy integration across European contexts. Its research scope spans seven thematic areas: energy system modelling, energy policy planning, energy efficiency, energy poverty, renewable energy, energy citizenship, and buildings.

The laboratory maintains a portfolio of interconnected open-source modelling tools, including OSeMOSYS-GR (open-source long-term energy system planning for Greece), DREEM (high-resolution bottom-up demand-side management model for the buildings sector), BSAM (wholesale electricity market simulator), STREEM and ATOM (power sector and energy systems analysis), AIM (decision support under deep uncertainty), Q-SpliT (split-incentive quantification in renovations), PROSPECT+ RDM (financing scheme selector for local authorities), and ANIMO (agent-based grassroots innovation diffusion model). These tools are released as open-source and disseminated through GitHub repositories, peer-reviewed publications, and conference presentations.

TEESlab's business model is non-commercial: as a university research laboratory under the University of Piraeus, it does not sell products or services. Its operating budget is assembled from competitive European Commission research grants under Horizon 2020, Horizon Europe, and the LIFE Programme, with the lab participating in 20+ projects (including IAM COMPACT, LOCATEE, OBSERVE, RENOVERTY, ENCLUDE, ENPOR, PROSPECT+, PROSPECT CUBE, SRI2MARKET, INHERIT, ENSMOV Plus, and TIPPING+). Project budgets typically range €2-4M total per consortium, and the lab's customer-facing stakeholders are local and regional authorities, EU institutions, national governments, and research partners rather than commercial buyers.

Name

TEESlab - Technoeconomics of Energy Systems laboratory

Legal name

TEESlab – University of Piraeus Research Center

Website

https://teeslab.unipi.gr

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Energy Systems Modelling Software

NAICS

Scientific Research and Development Services (5417), Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) (541715), Environmental Consulting Services (54162)

SIC

Services-Commercial Physical & Biological Research (8731), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Climate & GHG/Emissions Modeling & Scenario Analysis (Inventories, Projections, Net-Zero Pathways) (EUAHAKAH)

akta.pro secondary industries

Decarbonization Strategy & Marginal Abatement Cost Curve (MACC) Advisory (EUABAKAC), Net-Zero Target Setting & SBTi/Net-Zero Standard Support (EUABAKAA)

Keywords

• Energy systems modelling
• Energy policy analysis
• Techno-economic analysis
• Demand-side management
• Energy transition research

Headquarters

HQ city

Piraeus

HQ country

Greece

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations

Revenue model

1. EU Research Project Funding: As a university research laboratory, TEESlab operates primarily through competitive EU research funding from Horizon 2020, Horizon Europe, and LIFE Programme. Projects include IAM COMPACT, LOCATEE, OBSERVE, RENOVERTY, ENCLUDE, ENPOR, PROSPECT+, ENSMOV Plus, SRI2MARKET, INHERIT, ENERGee Watch, TIPPING+, CARISMA, and others. Duration ranges from 2-4 years with budgets typically ranging from 2-4 million euros per project.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

TEESlab develops and applies open-source energy system modelling tools (DREEM, BSAM, OSeMOSYS-GR, Q-SpliT, STREEM, AIM, ATOM, ANIMO, PROSPECT+ RDM) to conduct techno-economic analysis of energy systems, decarbonisation pathways, energy poverty mitigation, and demand-side flexibility. The laboratory delivers research outputs and decision-support tools to municipalities, EU institutions, and policymakers primarily through EU-funded research projects (Horizon 2020, Horizon Europe, LIFE Programme).

Product overview

TEESlab operates a portfolio of eight interconnected energy system modelling tools designed for techno-economic analysis, policy planning, and energy transition research. The core models include OSeMOSYS-GR (open-source energy system planning), DREEM (high-resolution building demand-side modelling), BSAM (wholesale electricity market simulation), STREEM (power sector capacity expansion), ATOM (energy systems analysis), and AIM (decision support). These are complemented by application-specific tools: PROSPECT+ RDM for financing scheme selection by local authorities, and Q-SpliT for quantifying split incentives in building renovations. ANIMO adds agent-based innovation diffusion modelling capabilities. The tools are used in combination to assess decarbonisation pathways, energy poverty mitigation, and renewable energy integration across European contexts.

Differentiator

Problem solved

Functional benefit

Products and services

• DREEM (Dynamic high-Resolution dEmand-sidE Management) A high-resolution bottom-up demand-side management model for simulating energy demand, assessing energy efficiency improvements, and evaluating decarbonisation pathways in the buildings sector. Used by researchers and policymakers.
• BSAM (Bidirectional System Analysis Model) A wholesale electricity market simulator designed to investigate market effects of increased renewable energy source penetration and capacity expansion scenarios.
• ATOM An energy modelling tool for analyzing energy systems and transition pathways.
• STREEM An energy systems modelling framework used for exploring power sector transition pathways and capacity expansion scenarios.
• AIM (Assessment and Integration Model) A decision support model used alongside energy modelling tools to evaluate capacity mixes and support energy policy decision-making under deep uncertainty.
• OSeMOSYS-GR An open-source energy modelling system customized for Greece, used for long-term energy system planning and transition pathway analysis.
• Q-SpliT (Quantification of Split Incentives) A tool to quantify split incentives in energy efficiency renovations, assessing how renovation costs and benefits can be fairly distributed between landlords and tenants.
• PROSPECT+ RDM (Recommendations Decision Matrix Tool) A practical tool for local and regional authorities to identify appropriate financing schemes and instruments for sustainable energy and climate projects.
• ANIMO (Agent-based gRassroots INnovation diffusiOn Model) An agent-based grassroots innovation diffusion model to analyze how collective energy initiatives such as energy communities are diffused and adopted across networks.

Quantifiable outcome

• Heat pumps emerged as most impactful solution with potential energy bill reductions exceeding 50% in Torres Vedras and Piraeus pilot areas
• +2 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

13 partnerships are on record, tiered core and minor.

• University of Cape Town - Energy Systems Research GroupcoreStrategic or Co-development Partner · 22 June 2026Collaboration on openmod Workshop South Africa 2026 and 44th International Energy Workshop (IEW 2026). Dr. Vassilis Stavrakas presented the DREEM model at both events. Joint research on energy systems modelling and decarbonisation pathways.
• IAM COMPACT (Horizon Europe)coreStrategic or Co-development PartnerHorizon Europe project on capacity development for integrated assessment modelling. TEESlab contributes OSeMOSYS-GR and DREEM models combined with distributional impact assessment framework for examining socioeconomic implications of electricity system configurations.
• LOCATEE (LIFE Programme)coreStrategic or Co-development PartnerLIFE-funded project on Local Authorities Tackling Energy Poverty in Private Multi-Apartment Buildings. Pilot municipalities include Rumia (Poland), Torres Vedras (Portugal), and Piraeus (Greece). TEESlab applies DREEM model for building energy simulations.
• OBSERVE (LIFE Programme)coreStrategic or Co-development PartnerLIFE project developing national Building Stock Observatories (nBSOs) across six Member States (Croatia, Cyprus, France, Greece, Italy, Spain). TEESlab contributes to mapping EU policy landscape and evaluating national building-stock data ecosystems.
• RENOVERTY (LIFE Programme)coreStrategic or Co-development PartnerLIFE project promoting energy-efficient building upgrades in rural regions. TEESlab adapted Q-SpliT tool for rural contexts in pilot regions (Osona Spain, Zasavje Slovenia, Tartu Estonia). Delivered Rural Energy Efficiency Roadmaps.
• ENCLUDE (Horizon 2020)coreStrategic or Co-development PartnerHorizon 2020 project on citizen-led energy transitions. TEESlab contributed DREEM model for energy transition scenario analysis and ANIMO agent-based model for collective energy initiative diffusion in case studies (Cloughjordan Ecovillage Ireland, EnergieC Midden-Delfland Netherlands, Belica Energy Community North Macedonia).
• ENPOR (Horizon 2020)coreStrategic or Co-development PartnerHorizon 2020 project on Energy Poverty in Private Rented Sector. Budget ~2M Euros (2020-2023). Developed Energy Poverty Dashboard and ENPOR Split Incentives tool. Supported 10 policies in 7 Member States.
• PROSPECT CUBE (LIFE Programme)coreStrategic or Co-development PartnerLIFE project building on PROSPECT+ legacy. Kick-off meeting October 2025 in Athens. TEESlab hosts and organizes project activities. Aims to support cities and regions through peer-to-peer learning, reaching over 356 local and regional authorities.
• PROSPECT+ (Horizon 2020)coreStrategic or Co-development PartnerHorizon 2020 project supporting local and regional authorities in implementing sustainable energy actions through innovative financing schemes (EPC, revolving fund, soft loans). Supported over 290 representatives from 27 European countries.
• ENSMOV Plus (LIFE Programme)minorStrategic or Co-development PartnerLIFE project on enhancing implementation and monitoring of energy saving policies under Article 7 of Energy Efficiency Directive. TEESlab contributes expertise on energy efficiency policy analysis.
• SRI2MARKET (LIFE Programme)minorStrategic or Co-development PartnerLIFE project supporting Smart Readiness Indicator implementation across EU Member States. TEESlab contributes policy analysis for SRI implementation in Austria, Croatia, Cyprus, France, Portugal, and Spain.
• INHERIT (Horizon Europe)minorStrategic or Co-development PartnerHorizon Europe project on sustainable cultural heritage buildings. TEESlab coordinates Design and Renovation breakout sessions and contributes to co-designing digital services for historic building management.
• IEECP (Institute for European Energy and Climate Policy)coreStrategic or Co-development PartnerOngoing collaboration partner across multiple projects including RENOVERTY, PROSPECT CUBE, SRI2MARKET, and ENSMOV Plus. IEECP serves as project coordinator for several initiatives.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Regional players

• Energy Poverty Advisory Hub (EPAH): EU-wide initiative providing capacity building, data, and tools on energy poverty to local authorities across Europe. Comparable mission to TEESlab's energy poverty work (LOCATEE, ENPOR, RENOVERTY) and overlaps on target stakeholder base.

Broad incumbents

• Fraunhofer ISI - Institute for Systems and Innovation Research: Large German applied research institute covering energy policy analysis, scenario modeling, and techno-economic assessment. Comparable in producing energy transition studies and policy advisory for EU institutions, though with a broader industrial focus.
• IIASA - Energy, Climate, and Environment Program: International research institute running integrated assessment and energy systems modeling (MESSAGE, GLOBIOM). Directly comparable as a multi-model, EU-funded research powerhouse producing openly available energy and climate pathway tools.
• VTT Technical Research Centre of Finland: Applied research organization running energy systems modeling, building energy simulation, and EU energy project portfolios. Comparable in techno-economic analysis offerings and EU project execution, though larger and more diversified.
• European Commission Joint Research Centre (JRC): EU's in-house science service running integrated assessment models, building stock observatories, and energy poverty research. Comparable as a producer of policy-grade tools and datasets that TEESlab's clients consume, though much larger and government-funded.

Direct peers

• KTH Royal Institute of Technology - Department of Energy Technology: University energy systems research group contributing to OSeMOSYS and other open-source energy models, participating in similar Horizon Europe/LIFE projects on decarbonization and energy poverty. Highly comparable in mission, tooling, and funding model.
• DTU - Technical University of Denmark, Department of Wind and Energy Systems: European university energy systems research group with strong open-source energy modeling portfolio (EnergyPLAN, Balmorel) and deep Horizon Europe participation. Directly comparable to TEESlab in scope, tools, and target stakeholders.
• Politecnico di Milano - Energy Department: Italian university energy research group with strong participation in EU energy modeling and energy poverty projects (e.g., ENPOR parallel efforts). Comparable in academic profile, EU funding model, and building-sector focus.
• IEECP - Institute for European Energy and Climate Policy: Brussels-based energy and climate policy institute that is TEESlab's recurring consortium partner across RENOVERTY, PROSPECT CUBE, SRI2MARKET, and ENSMOV Plus. Highly comparable in EU policy focus and project execution, with overlapping thematic areas.
• Wuppertal Institute: German research institute focused on energy transition, building decarbonization, and energy poverty, with strong EU project participation. Highly comparable scope and methodology to TEESlab, particularly on demand-side and policy analysis.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/TEES_Lab
• YouTubeyoutube.com/@TEESlab-UPRC
• LinkedInlinkedin.com/company/technoeconomics-of-energy-systems-laboratory-teeslab

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about TEESlab - Technoeconomics of Energy Systems laboratory