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Institute for Renewable Energy (IEO) was established in 2001. It’s an independent research group, and the first private research institute in Poland with a deep knowledge of the renewable energy issues: wind energy, solar energy, biogas, biomass, energy planning, ranging from politics energy and law, economic and financial analysis, and ending with the technical issues and design.

IEO also has an extensive experience in participating as an advisor (due-diligence, assumptions and concepts of technical solutions, functionality and utility programs, feasibility studies, business plans, terms of reference for a tender, supervision and construction monitoring) in the investment processes in the area of ​​renewable energy implemented by the company and local governments. IEO actively participates and  analysis the results of two first renewable energy auctions in Poland in 2016 and 2017.

IEO since 2009, conducts postgraduate studies "Investments in renewable energy sources", trainings and conferences in the field of technology, market economics and the law of renewable energy sources for national energy companies (eg. PGE, PKP Power Engineering), municipalities, financial companies (Alior Bank BGZ, ZBP) and foreign institutions (chambers of commerce in Germany and France, energy companies).

In addition, as part of its work, the IEO completed a number of expert opinions commissioned by the Ministry of Economy, Ministry of Environment, Ministry of Regional Development and other governmental and commercial projects for business customers.

Please find full IEO’s offer

Postal adres:
Mokotowska 4/6
00-641 Warsaw
phone/fax. 22 825 46 52, 22 875 86 78
e-mail: biuro@ieo.pl

Invoice Data
Fletniowa 47B, PL03-160 Warszawa
VAT no PL5242400349
Bank Account PL64249000050000460072511624
Alior Bank, O/Warszawa - Rakowiecka 39a

In order to apply for patronage of the Institute for Renewable Energy, project coordinator should contact the IEO and send the proposal on patronage at least 1 month before the event.
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Founder and director of Institute for Renewable Energy (IEO) – a research centre and sustainable energy think-tank in Warsaw. Mr Wisniewski graduated from Warsaw University of Technology (process engineering) and Warsaw University (MBA). He specialises renewable energy technologies (solar, wind, bioenergy/biogas), energy economics, energy systems modelling and forecasting of energy prices. He co-authored Polish National renewable energy strategy (2001), some key renewable energy regulations (energy law- green certificates, support for prosumers, economic part of auctioning system). He was managing director (1997-2005) of the EC Baltic Renewable Energy Centre (Warsaw), chairman (2007/2008) of the ManagEnergy Reflection Group (MERG) – an advisory group of the Directorate General for Energy at the EC (Brussels) and chairman of energy advisory group for the Polish Minister of Environment. In 2016 he was appointed to the National Development Council (advisory body to the President of Poland). For his overall contribution to the promotion of renewable energy technologies he was awarded the statuette of Promoter of Renewable Energy (by Polish “Clean Energy” Journal), distinction New Impulse  (by Polish “New Industry Journal)  and has got award the Man of Polish Ecology.


Proxy of EC BREC Institute for Renewable Energy. He graduated from the Faculty of Management at Warsaw University, specializing in financial management. Tomasz  works at IEO  since 2004. He is an expert in the field of financial law and tax law, as well as the specific legal issues relating to renewable energy in Poland and in Europe. He specializes in legal services programs at the IEO. Directly supervises the implementation of projects from formal and financial side, among others: optimizing costs, analyzing the profitability of projects. Tomasz Mroszkiewicz works with external stakeholders, IEO partners. He is also co-author of numerous projects in the field of renewable energy development in Poland, for example: "The business model of investment in renewable energy sources", "Renewable Energy Farms and Intelligent Networks", "Expert analysis of the adoption effects of the government's draft law on renewable energy sources, together with the proposed support system. "

A well-thought-out and effective solutions for the renewable energy market.


VAT no PL524-24-00-349; The District Court for the Capital City Warsaw; Commercial Division of the National Court Register under NCR: 0000036667; Bank ALIOR 02-519 Warsaw, Rakowiecka Str. 39a, PL64 2490 0005 0000 4600 7251 1624