Polaniec – a 100% Biomass Success

Published: July 31, 2013

 

Commissioned in time to gain its license to generate green electricity, newly inaugurated Polaniec Green Unit (South-east Poland) stands as a milestone in biomass PP development; as the world’s largest 100% biomass-fired unit, able to efficiently fire a challenging biomass mix.

EVOLUTION OF A VISION

In line with European environmental policies and its own Green Program, GDF SUEZ Energia Polska S.A. (GSEP) began co-firing with wood chips at Polaniec CFPP in 2004. As Polish laws limiting wood co-firing and increasing agri-biomass share came into play, so the idea of decommissioning and replacing Polaniec unit 8 with a 100% biomass GREEN UNIT took hold… Watch the video “Green Unit” – the future biomass power plant of Polaniec

“SAFETY FIRST” – THE MAIN DESIGN CRITERION

For technical reasons related to the variable heating values, moisture content and nature of agri-biomass, with safety first as the guiding criterion, the core solution was the construction of a world premiere, 100% biomass, 205 MWe facility incorporating state-of-the-art technologies… Read more about the technical benefits.

PARTNERS ALL THE WAY

Drawing on quality contractors and GDF SUEZ Group experience from the start, GSEP called on the technical assistance of Laborelec (GDF SUEZ) and the high-level biomass expertise of Tractebel Engineering in Belgium, supported by Poland, with good results gained every step of the way… Read more



Over 10 years, to diversify the risk of coal, we introduced co-firing and then gradually we were increasing this every year leading to the logical step to go further and build a fully dedicated Green Unit. We are all proud that Polaniec was selected for such a flagship and benchmark projectGrzegorz Gorski, CEO GSEP

EVOLUTION OF A VISION

In line with European environmental policies and its own Green Program, GDF SUEZ Energia Polska S.A. (GSEP) began co-firing with wood chips at Polaniec CFPP in 2004. As Polish laws limiting wood co-firing and increasing agri-biomass share came into play, so the idea of decommissioning and replacing Polaniec unit 8 with a 100% biomass GREEN UNIT took hold…

3 PHASES OF DEVELOPMENT

  1. Stage 1 – At the end of 2004, GSEP constructed an installation covering wood chipping, handling, storage and mixing facilities to allow the co-firing of wood biomass at Polaniec PP.
  2. Stage 2 – In 2008, as new regulations called for steady reductions in wood biomass share (to be reduced to zero by 2015) with a simultaneous increase in the agri-biomass quota, GSEP adapted the installation; building new unloading, preparation, handing and storage facilities needed to introduce diverse agri-fuels such as straw, fruit stones, sunflower husks etc. into the co-firing process.
  3. Stage 3– Between 2010 and 2012 – all attention focussed on developing the 100% GREEN UNIT – due to 2 important factors:
    • Technical constraints limit the % agri-biomass vs. total fuel mass share in Pulverised Coal Boilers;
    • Regulations allowed that dedicated biomass units commissioned before 31.12.2012 could still use 80% farmed tree wood balanced by 20% agricultural by-products.

FROM CONSTRUCTION TO COMMISSIONING

With the challenge to meet the 31.12.2012 deadline accepted by all parties, the Polaniec project ran smoothly from construction to commissioning.


GDF SUEZ is proud to inaugurate the Green Unit and to demonstrate its considerable array of renewable power in biomass. Poland, thanks to a dynamic economy and sustained growth in energy demand, is a key and promising market for the company”. Jean-François Cirelli, Vice Chairman & President Energy Europe GDF SUEZ – Photo:  J.F. Cirelli, G. Mestrallet, G. Gorski at Polaniec inauguration © GDF SUEZ/Arnaud Brunet.


“SAFETY FIRST” – THE MAIN DESIGN CRITERION

For technical reasons related to the variable heating values, moisture content and nature of agri-biomass, with safety first as the guiding criterion, the core solution was the construction of a world premiere, 100% biomass, 205 MWe facility incorporating state-of-the-art technologies…

ADVANTAGEOUS TECHNOLOGY

The tailor made CFB (Circulating Fluidised Bed) technology utilised was developed in collaboration with Foster-Wheeler, specifically for the Polaniec GREEN UNIT.

  • It is the first industrial boiler of its size and is designed to burn challenging mixtures of forest residues, wood chips, pelletized agriculture by-products with the net electrical efficiency of around 38%. This is a very high yield due to the use of state-of-the-art technology: CFB boiler and cutting-edge combustion gas treatment facilities.
  • The ability to fuel the unit with a wide range of naturally chemically- aggressive agri-biomass fuels is possible thanks to a lower combustion temperature and the longer  time of fuel particles spend in the combustion chamber.
  • As the technology stabilises the combustion, it prevents slagging and limits SO2 and NOx emissions.
  • CFB technology also allows simpler, low energy-consuming upstream biomass preparation (“chipped” as opposed to “milled” fuel is fed into the boiler), which adds to the overall efficiency of the unit and helps to greatly reduce the fire and explosion risk associated with handling and firing very dry, dusty “pulverised” biomass. The chipped biomass is stored under a 24.000 m³ open-sided A-frame barn roof.

PUSHING FOR GREATER EFFICIENCY

The Green Unit plant was delivered and put into commercial operation on time and within budget. The expected performances are reached. This success was achieved thanks to our constructive collaboration with the project teams of GDF SUEZ Energy Polska, the Laborelec R&D centre and the EPC Contractor Foster WheelerJean-Paul Mossoux, Project Manager Renewable Energy , Tractebel Engineering

Inauguration of POLANIEC biomass PP (05.06.2013) from L. to R. : Greg Gorski (CEO GDF SUEZ Energy Poland), H.E. Pierre Buhler (French Ambassador in Poland), Jean-François Cirelli (Vice Chairman & president Energy Europe GDF SUEZ), Hanna Trojanowska (Vice Minister of Economy-Poland), Piotr Wozniak (Vice Minister Of Environment-Poland), Gérard Mestrallet (Chairman & CEO GDF SUEZ), Adam Jarubas (Marshal of Swietokrzyskie Province), Jacek Tarnowski (Mayor of Polaniec) © GDF SUEZ/Arnaud Brunet

PARTNERS ALL THE WAY

Drawing on quality contractors and GDF SUEZ Group experience from the start, GSEP called on the technical assistance of Laborelec (GDF SUEZ) and the high-level biomass expertise of Tractebel Engineering in Belgium, supported by Poland; with good results gained every step of the way.

  • Early studies began with the first tests and assessment of the best technology options for preparing biomass (milling-drying) for optimum co-firing with coal in the plant boilers.
  • Further trials and innovative engineering services were needed to extend the existing co-firing with coal capability and introduce different agri-biomass into the co-firing system.
  • After 2010, with the race to gain certification for the GREEN UNIT, Tractebel Engineering kept up the pace as Owner’s Engineer; carrying out feasibility studies, tender enquiries and proposal evaluations, with Brussels’ Renewable Energy and Project Management team design review and supporting GSEP with key technical and contractual aspects, localised thermal expertise, site supervision and quality control provided by Tractebel Engineering (Poland).

Under the ongoing guidance of our biomass experts onsite supervision revolved around biomass trials, mechanical- electrical-I&C-civil works inspections, support to the Site Manager and commissioning support, in close cooperation with the GSEP Polaniec team and the EPC Contractor.

Our approach has been to always be one step ahead in ensuring all aspects are considered; the right equipment and protection systems for the biomass handling systems are all in place. Working with such quality-focussed people on site is one of the reasons that everything went smoothly and according to documentation.Patryk Wojtyla, Site Supervision, Tractebel Engineering (Poland)

POLANIEC PP

250 km from Warsaw, in parallel with 7 coal-fired units (1,445 MWe net capacity), the new 100% Biomass Green Unit provides enough electricity (1,2 TWh/year) for 600,000 Polish homes and saves 1.2 million tons CO2 emissions per year.

INAUGURATION

Following commissioning, the official inauguration of the Polaniec Green Unit took place on 5 June 2013. Find out more on website GDF SUEZ.

RISING TO POWER

In line with key customer needs, Tractebel Engineering (Poland) has been developing its power offer. Today Polish clients benefit from wide-ranging services in Power & Gas, T&D and Wind.

In my view, Tractebel Engineering is and will be considered as a company giving us useful support and recommendationsMiroslaw Jablonski, Project Manager – GSEP.

More information

  • Jean-Paul Mossoux Jean-Paul Mossoux
  • Patryk Wojtyla Patryk Wojtyla

 

Jean-Paul Mossoux, Project Manager, Renewable Energy, Tractebel Engineering
Patryk Wojtyla
, Site Supervision, Tractebel Engineering (Poland)

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