introduction essent essent is a dutch based utility with a turnover of eur 7,4 billion and...
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Introduction Essent
• Essent is a Dutch based utility with a turnover of EUR 7,4 billion and appr.11.000 employees
• Essent is largest producer of green electricity and biomethane in The Netherlands
• Essent Warmte operates several district heating grids and has more than 70.000 customers
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district heating Essent
• traditional district heating (heat from power stations and CHP)
• since 2000 several projects with heat pumps and seasonal heat storage
• in 2007 three projects with biogas CHP in new urban areas with low-energy houses (heat demand 20-30 GJ is 5500-9000 kWh per year)– Techum/Jabikswoude in Leeuwarden– Zuidbroek in Apeldoorn– Polderwijk in Zeewolde
highest reduction of CO2 with biogas CHP
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Leeuwarden
ZeewoldeApeldoorn
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Zuidlanden - Leeuwarden
• district heating for 750 new low-energy houses, school and care centre
• extension with 300 houses expected• dairy cattle farm "Nij Bosma Zathe" of
Wageningen University produces biogas• 5,5 km biogas pipeline for transport of biogas
to 2 x 340 kW CHP located between the dwellings Techum and Jabikswoude
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farm
CHP
biogas pipeline
district heating
district heating
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Zuidbroek - Apeldoorn• district heating for 2500 low-energy houses, schools,
shops and care centre• production of sewage gas and biogas from
slaughterhouse waste at sewage treatment plant of Waterschap Veluwe
• 2,5 km pre-insulated pipe for transport of green heat to Zuidbroek residential area
• community of Apeldoorn plans to be energy neutral in 2020; district heating Zuidbroek in project Sorcer of EU Concerto+programme
• biofuel peak boiler, hot fill connection for dishwasher and subsidy for individual pv with support of Sorcer
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Polderwijk - Zeewolde
• district heating for 3000 new houses• dairy cattle farm produces biogas• 6 km biogas pipe line for transport of biogas
to 1 MW CHP in Polderwijk boiler house• 50% reduction of CO2 for heating and
electricity consumption compared to standard for new houses
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Groene warmte uit biogas van melkveehouderij
3000 houses
CHP
biogas
Polderwijk Zeewolde
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Why biogas for district heating?
• biogas can easily be transported to residential areas
• heat of biogas engine fulfills demand for legionella safe heat supply to houses (temperate 70 degrees for domestic hot-water)
• green heat is effective tool in development of climate neutral cities
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Essent: more biogas in the city
• Essent Warmte is offering district heating based on biogas for several new residential areas to communities in The Netherlands
• Essent Warmte is investigating supply of biogas to CHP in existing district heating projects
• Essent Warmte actively promotes maximal utilisation of biofuels and is member of Dutch association for biochp www.biowkk.nl
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design of energy station Zuidlanden Leeuwarden