{"id":57763,"date":"2023-01-18T10:33:41","date_gmt":"2023-01-18T09:33:41","guid":{"rendered":"https:\/\/nissenenergy.com\/aarhus-vand-marselisborg-renseanlaeg\/"},"modified":"2026-02-20T11:49:46","modified_gmt":"2026-02-20T10:49:46","slug":"aarhus-vand-marselisborg-renseanlaeg","status":"publish","type":"post","link":"https:\/\/nissenenergy.com\/en\/aarhus-vand-marselisborg-renseanlaeg\/","title":{"rendered":"Aarhus Vand
Marselisborg Renseanl\u00e6g"},"content":{"rendered":"

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Seleted cases
<\/span><\/p>\n

[\/et_pb_text][et_pb_text admin_label=”Marselisborg WWTP” _builder_version=”4.19.4″ header_font=”|700||on|||||” header_text_color=”#ffffff” header_font_size=”60px” header_line_height=”1.2em” background_size=”initial” background_position=”top_left” background_repeat=”repeat” background_layout=”dark” custom_margin=”||0px|” custom_padding=”||0px|” header_font_size_tablet=”” header_font_size_phone=”25px” header_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}”]<\/p>\n

Marselisborg WWTP<\/h1>\n

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Aarhus Water
<\/span><\/h1>\n

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Net-achieving 165% energy self-sufficiency<\/strong><\/h3>\n

[\/et_pb_text][et_pb_text admin_label=” Text US” _builder_version=”4.19.4″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

At Aarhus Vand\u2019s Marselisborg WWTP, the utility has implemented energy-saving technologies such as an advanced SCADA control system, a new turbo compressor, sludge liquor treatment based on the anammox process as well as optimized the fine bubble aeration system.<\/p>\n

This has resulted in a reduction in power consumption of approximately 1 GWh per year which equals about 25% in total savings.<\/p>\n

During the same time period, the energy production has been improved through implementation of new energy efficient biogas engines (CHPs), resulting in an increase in electricity production of approximately 1 GWh per year.<\/p>\n

Furthermore, a new heat exchanger has been installed with the aim of selling surplus heat to thedistrict heating grid. which represents approx. The surplus heat represents approx. 2 GWh per year.<\/p>\n

From 2020 to 2021, Marselisborg WWTP had an average total energy production of 9.54 MWh per year and an energy consumption of 5.8 MWh per year, equivalent to a net energy production of 165%. Most of the installed technologies have a payback time of less than 5 years.<\/p>\n

(Source: Aarhus Vand)<\/p>\n

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Marselisborg WWTP,
Aarhus Water<\/p>\n

[\/et_pb_blurb][et_pb_blurb image=”https:\/\/nissenenergy.com\/wp-content\/uploads\/2022\/06\/Udstyrstype-Nissen-energy-ikon.png” icon_placement=”left” image_icon_width=”200%” content_max_width=”525px” admin_label=”Faktaboks: Udstyr US” _builder_version=”4.25.1″ _module_preset=”default” custom_margin=”0px||11px||false|false” animation=”off” global_colors_info=”{}”]<\/p>\n

NPM 357<\/p>\n

[\/et_pb_blurb][et_pb_blurb image=”https:\/\/nissenenergy.com\/wp-content\/uploads\/2022\/06\/Ydelse-Nissen-energy-ikon.png” icon_placement=”left” image_icon_width=”200%” content_max_width=”525px” admin_label=”Faktaboks: Ydelse US” _builder_version=”4.25.1″ _module_preset=”default” custom_margin=”0px||11px||false|false” animation=”off” global_colors_info=”{}”]<\/p>\n

357 kW Electricity
373 kW Heating<\/p>\n

[\/et_pb_blurb][et_pb_blurb image=”https:\/\/nissenenergy.com\/wp-content\/uploads\/2022\/06\/Idriftsaettelsesaar-Nissen-Energy-ikon.png” icon_placement=”left” image_icon_width=”200%” content_max_width=”525px” admin_label=”Faktaboks: Idrifts\u00e6tningsdato US” _builder_version=”4.17.4″ _module_preset=”default” custom_margin=”0px||11px||false|false” animation=”off” global_colors_info=”{}”]<\/p>\n

2010\u00a0<\/p>\n

[\/et_pb_blurb][et_pb_blurb image=”https:\/\/nissenenergy.com\/wp-content\/uploads\/2022\/06\/Tilbagebetalingstid-Nissen-Energy-ikon.png” icon_placement=”left” image_icon_width=”200%” content_max_width=”525px” admin_label=”Faktaboks: Tilbagebetaling US” _builder_version=”4.19.4″ _module_preset=”default” custom_margin=”0px||11px||false|false” animation=”off” global_colors_info=”{}”]<\/p>\n

<5 years<\/p>\n

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Aarhus Vand and NISSEN energy have had solid cooperation for a number of years, which has helped to strengthen Aarhus Vand\u2019s leading position and ambition of \u201cbeing an international lighthouse for energy production and resource utilization
of wastewater\u201c.<\/strong><\/span><\/h3>\n

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\n

\u00a0<\/h3>\n

\u00a0<\/h3>\n

\u00a0<\/h3>\n

NISSEN energy performs maintenance, repair & overhauls of gas engines, burners, gas treatment plant and flares at Aarhus Vand\u2019s different plant locations.<\/h3>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n<\/blockquote>\n

 <\/p>\n

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Brochure<\/strong>
Select for download<\/em><\/p>\n

[\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_6″ _builder_version=”4.17.3″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/nissenenergy.com\/wp-content\/uploads\/2023\/01\/Case-Aarhus-Vand.jpg” alt=”NISSEN energy kedel” title_text=”Case Aarhus Vand” url=”https:\/\/nissenenergy.com\/wp-content\/uploads\/2023\/01\/NISSEN-Case-Story-Aarhus-Water-energy-self-sufficiency-US.pdf” force_fullwidth=”on” admin_label=”Billede: Case Forside+Link” _builder_version=”4.19.4″ global_colors_info=”{}”][\/et_pb_image][et_pb_text admin_label=”Case Story Aarhus Vand + link” _builder_version=”4.19.4″ _module_preset=”default” link_option_url=”https:\/\/nissenenergy.com\/wp-content\/uploads\/2023\/01\/NISSEN-Case-Story-Laholmbuktens-VA-US-1.pdf” global_colors_info=”{}”]<\/p>\n

Case Story Aarhus Vand US<\/a><\/p>\n

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In recent years, Aarhus Water has focused heavily on energy savings and energy production. 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