{"id":5503,"date":"2021-06-06T10:19:32","date_gmt":"2021-06-06T07:19:32","guid":{"rendered":"https:\/\/www.makelaalu.fi\/?p=5503"},"modified":"2022-05-14T20:40:46","modified_gmt":"2022-05-14T17:40:46","slug":"our-customers-demand-energy-efficiency-we-are-constantly-working-towards-it","status":"publish","type":"post","link":"https:\/\/makelaalu.fi\/en\/news\/our-customers-demand-energy-efficiency-we-are-constantly-working-towards-it\/","title":{"rendered":"Our customers demand energy efficiency \u2013 we are constantly working towards it"},"content":{"rendered":"\n

Sami Moilanen works at an anodizing plant and has participated in the plant’s energy reform.<\/em><\/p>\n

In February 2021, M\u00e4kel\u00e4 Alu joined the Technology Industry Energy Efficiency Agreement. According to Chairman of the Board, Petri M\u00e4kel\u00e4<\/strong>, there were many reasons for joining the agreement.<\/p>\n

\u201cIt contributes to a positive corporate image and makes our environmental efforts more visible,\u201d says M\u00e4kel\u00e4.<\/p>\n

Customers are increasingly interested in their partners’ energy consumption, energy sources, and emissions, among other environmental issues.<\/p>\n

\u201cEnvironmental criteria are becoming one of the most important criteria in the selection of partners,\u201d says M\u00e4kel\u00e4 Alu’s EHSQ Manager P\u00e4ivi Venesoja<\/strong>.<\/p>\n

\u00a0<\/p>\n

The content of the energy efficiency agreement became clearer<\/h3>\n

According to Petri M\u00e4kel\u00e4, the decision to join the energy efficiency agreement was also influenced by the fact that the implications of the agreement became clearer over time.<\/p>\n

\u201cWe used to be a little unsure of what the agreement obliges us to do and what it requires from us. Now we know the answers. Awareness of the issues related to the agreement has also increased within our own organisation,\u201d says M\u00e4kel\u00e4.<\/p>\n

According to M\u00e4kel\u00e4, the decision to join the energy efficiency agreement was further reinforced by the possibility to receive energy subsidies from the Ministry of Economic Affairs and Employment, which would lower the company\u2019s threshold for energy efficiency investments.<\/p>\n

\u201cHowever, potential subsidies are not the most important thing here. We would make these investments anyway.\u201d<\/p>\n

\u00a0<\/p>\n

Focus on waste heat recovery<\/h3>\n

Aluminium profiles are made by an extrusion process. A round bar is preheated to about 450 degrees, to get the desired shape and then extruded through a mould. After that, the profiles are cooled with water or air, and then heat-treated one more time.\u00a0<\/p>\n

In addition to the aforementioned process, energy is also consumed at M\u00e4kel\u00e4 Alu\u2019s surface treatment plants, three powder-coating paint shops, and anodizing plant. In the powder-coating paint shops, profiles are first pretreated with 35\u201355 degree water, dried, powder coated, and heated in an oven at about 195 degrees to melt the powder on the profile surface.<\/p>\n

At the anodizing plant, process tank temperatures vary from 18 degrees to just over 70 degrees. In the actual anode tank, an oxide layer is produced on the surface of the profiles by applying a current to the sulphuric acid bath.\u00a0<\/p>\n

According to Development Director Tomi Pilbacka<\/strong>, energy consumption has been monitored at the production plant for a long time. A key method for improving energy efficiency is recovering waste heat at different stages of production.<\/p>\n

\u201cWe have started off by identifying potential sources of waste heat. There is potential, and making the most of waste heat will be a major theme in the coming years.\u201d<\/p>\n

Waste heat can be recovered either by using heat pumps or, in some cases, directly through heat exchangers, and utilised, for example, in the heating of surface treatment water.<\/p>\n

The challenge is that the waste heat recovery and application sites are not always close to each other. Therefore, it may be necessary to build an internal heating network on the factory site so that the heat can be transferred to the necessary locations,\u201d says Pilbacka.<\/p>\n

\u00a0<\/p>\n

We aim to reach carbon neutrality in 2025\u00a0<\/h3>\n

M\u00e4kel\u00e4 Alu\u2019s major investments also include replacing the anodizing plant\u2019s steam centre with heat produced by heat pumps. In this way, the use of LPG can be eliminated.<\/p>\n

\u201cOur anodizing plant has a heat pump whose capacity has not been fully utilised. Now we plan to utilise that capacity by recovering heat energy from wastewater,\u201d says Tomi Pilbacka.\u00a0<\/p>\n

Ventilation is also a major source of waste heat. Currently, a significant amount of hot exhaust air is blown out of the factory halls, which could be recovered with an appropriate heat recovery system.<\/p>\n

Pilbacka emphasises that the purchase of new and less energy-intensive equipment is only a part of the company\u2019s energy efficiency improvement efforts.<\/p>\n

\u201cIn addition, we strive to use existing equipment as efficiently as possible and, for example, avoid unnecessary down time. This allows us to save energy without financial investment.\u201d<\/p>\n

According to Pilbacka, the main thing is for the whole work community to work towards these goals and for everybody to get involved in coming up with possible energy-saving solutions.<\/p>\n

M\u00e4kel\u00e4 Alu has set a target to make its production carbon-neutral by 2025. Improving energy efficiency and replacing LPG with emission-free energy forms are the key here.<\/p>\n

\u201cWe plan to replace our LPG appliances with electric ones when they reach the end of their life cycle.\u201d\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"Sami Moilanen works at an anodizing plant and has participated in the plant's energy reform. In February 2021, M\u00e4kel\u00e4 Alu joined the Technology Industry Energy Efficiency Agreement. According to Chairman of the Board, Petri M\u00e4kel\u00e4, there were many reasons for joining the agreement. \u201cIt contributes to a positive corporate image and makes our environmental efforts more visible,\u201d says M\u00e4kel\u00e4. Customers are increasingly interested in their partners' energy consumption, energy sources, and emissions, among other environmental issues. \u201cEnvironmental criteria are becoming one of the most important criteria in the selection of partners,\u201d says M\u00e4kel\u00e4 Alu's EHSQ Manager P\u00e4ivi Venesoja. \u00a0 The content of the energy efficiency agreement became clearer According to Petri M\u00e4kel\u00e4, the decision to join the energy efficiency agreement was also influenced by the fact that the implications of the agreement became clearer over time. \u201cWe used to be a little unsure of what the agreement obliges us to do and what it requires from us. Now we know the answers. Awareness of the issues related to the agreement has also increased within our own organisation,\u201d says M\u00e4kel\u00e4. According to M\u00e4kel\u00e4, the decision to join the energy efficiency agreement was further reinforced by the possibility to receive energy subsidies from the Ministry of Economic Affairs and Employment, which would lower the company\u2019s threshold for energy efficiency investments. \u201cHowever, potential subsidies are not the most important thing here. We would make these investments anyway.\u201d \u00a0 Focus on waste heat recovery Aluminium profiles are made by an extrusion process. A round bar is preheated to about 450 degrees, to get the desired shape and then extruded through a mould. After that, the profiles are cooled with water or air, and then heat-treated one more time.\u00a0 In addition to the aforementioned process, energy is also consumed at M\u00e4kel\u00e4 Alu\u2019s surface treatment plants, three powder-coating paint shops, and anodizing plant. In the powder-coating paint shops, profiles are first pretreated with 35\u201355 degree water, dried, powder coated, and heated in an oven at about 195 degrees to melt the powder on the profile surface. At the anodizing plant, process tank temperatures vary from 18 degrees to just over 70 degrees. In the actual anode tank, an oxide layer is produced on the surface of the profiles by applying a current to the sulphuric acid bath.\u00a0 According to Development Director Tomi Pilbacka, energy consumption has been monitored at the production plant for a long time. A key method for improving energy efficiency is recovering waste heat at different stages of production. \u201cWe have started off by identifying potential sources of waste heat. There is potential, and making the most of waste heat will be a major theme in the coming years.\u201d Waste heat can be recovered either by using heat pumps or, in some cases, directly through heat exchangers, and utilised, for example, in the heating of surface treatment water. The challenge is that the waste heat recovery and application sites are not always close to each other. Therefore, it may be necessary to build an internal heating network on the factory site so that the heat can be transferred to the necessary locations,\u201d says Pilbacka. \u00a0 We aim to reach carbon neutrality in 2025\u00a0 M\u00e4kel\u00e4 Alu\u2019s major investments also include replacing the anodizing plant\u2019s steam centre with heat produced by heat pumps. In this way, the use of LPG can be eliminated. \u201cOur anodizing plant has a heat pump whose capacity has not been fully utilised. Now we plan to utilise that capacity by recovering heat energy from wastewater,\u201d says Tomi Pilbacka.\u00a0 Ventilation is also a major source of waste heat. Currently, a significant amount of hot exhaust air is blown out of the factory halls, which could be recovered with an appropriate heat recovery system. Pilbacka emphasises that the purchase of new and less energy-intensive equipment is only a part of the company\u2019s energy efficiency improvement efforts. \u201cIn addition, we strive to use existing equipment as efficiently as possible and, for example, avoid unnecessary down time. This allows us to save energy without financial investment.\u201d According to Pilbacka, the main thing is for the whole work community to work towards these goals and for everybody to get involved in coming up with possible energy-saving solutions. M\u00e4kel\u00e4 Alu has set a target to make its production carbon-neutral by 2025. Improving energy efficiency and replacing LPG with emission-free energy forms are the key here. \u201cWe plan to replace our LPG appliances with electric ones when they reach the end of their life cycle.\u201d\u00a0","protected":false},"author":2,"featured_media":5460,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[42],"tags":[],"class_list":["post-5503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"yoast_head":"\nOur customers demand energy efficiency \u2013 we are constantly working towards it - Mäkelä Alu Oy<\/title>\n<meta name=\"description\" content=\"In February 2021, M\u00e4kel\u00e4 Alu joined the Technology Industry Energy Efficiency Agreement. 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