Energy Consumption
Total Page:16
File Type:pdf, Size:1020Kb
Energy During the last year the issue of energy consumption and consumption Norske Skog is work- tions of 3-5% per tonne of TMP greenhouse gas emissions has ing on various ways of are achievable after installation of saving energy, and many advanced control equipment. become even more pressing. different projects have Energy saving projects at the mills The production of paper demands been initiated. have received support from various The production of authorities in several countries. One high energy consumption, thermo-mechanical example is a project at Norske Skog pulp (TMP) is the Skogn, described on the next page. there are however many different most energy de- The recovery of heat from the manding part of the Norske Skog Albury TMP plant has 450 ways to reduce consumption, with production process. allowed it to reduce the consumption 400 In this process the of natural gas whilst at the same time 350 particular focus on energy savings 300 wood fibers are generating CO2 credits. separated by me- 250 and alternative energy sources. 200 NEW DEVELOPMENTS 1000 chanical process- 150 900 ing of the wood. Many of the projects Research has been undertaken on 100 800 50 450 and research are focused on reduction woodchip pretreatment combined 700 405 of energy consumption in this phase. with various refining techniques. 600 0 100 360 500 There is also focus on increasing use This has delivered promising energy 315 400 80 270 of recycled10 % fiber as a replacement for reduction results and is now in an 300 225 the more energy demanding TMP. implementation phase in a number of 200 8 % 60 180 Energy reduction projects in the locations. 100 450 135 6 % 0 400 40 TMP process have been approved at Norske Skog is also in discussions 35 90 350 two mills.4 % Extensive trials conducted regarding the potential for a new 45 300 30 20 0 at our plants2 % indicate that reduc- power station based on natural gas 250 25 0 200 0 % 1000 20 150 900 15 -2 % 100 800 50 450 700 10 3500 100 405 600 0 5 100 360 Energy consumption by source 3000 Europe 500 Australasia 3000 35 80 0 315 400 30 2500 Total 12 100 GWh, 3.57 MWh/tonnes Total 4 120 GWh, 5.15 MWh/tonne 2500 80 270 10 % 300 60 225 200 2000 25 2000 8 % 60 180 100 20 1500 40 135 6 % 1500 0 450 40 90 1000 35 15 400 4 % 1000 20 45 10 500 350 30 20 0 2 % 500 300 0 0 25 5 0 250 45 0 % 0 20 0 200 40 1000 15 -2 % 150 35 900 Purchased electricity 52% Purchased electricity 53% 30 100 100 10 800 12 % Fossil 16% Fossil 23% 100 Purchased electricity 51% 3500 50 25 450 3500 700 10 % 5 Fossil 21% Bio 14% Bio 1% 80 20 405 3000 600 3000 0 35 3000 8 % 80 0 Recovered from TMP 13% 10Recovered0 from TMP 2% 15 360 Bio 13% 500 6 % 2500 30 2500 2500 60 315 Recovered from TMP 8% 400 Other 5% Other 21% 10 60 4 % 80 270 25 10 % 2000 5 2000 2000 Other 7% 300 2 % 40 225 200 0 20 1500 40 1500 8 % 0 % 60 180 1500 100 15 -2 % 1000 20 135 1000 6 % 0 20 1000 40 90 -4 % 35 500 10 500 4 % 0 45 500 -6 % 0 30 5 0 20 0 0 45 2 % 8 0 NORSKE SKOG SUSTAINABILITY REPORT 25 0 0 40 0 % 20 35 15 30 -2 % 100 12 % 25 3500 10 10 % 100 80 20 3500 3000 8 % 5 15 3000 35 6 % 3000 2500 80 60 0 10 4 % 30 2500 2500 5 2000 2 % 60 40 2000 0 25 2000 1500 0 % 1500 20 -2 % 40 20 1000 1500 15 -4 % 1000 500 1000 20 0 -6 % 10 500 0 500 0 0 5 45 0 0 40 35 30 100 12 % 25 3500 10 % 80 20 3000 8 % 15 6 % 2500 60 10 4 % 5 2000 2 % 40 0 1500 0 % -2 % 20 1000 -4 % 500 0 -6 % 0 ENVIRONMENT Investing NOK 330 million Norske Skog is to invest NOK 330 million at its Norske Skog Skogn mill in mid- Norway in order to boost its competitive- 450 450 400 ness and further improve the quality of 400 350 and biofuel at Skogn. The steam from an energy source, and are shift- the paper it produces. The project will cut 350 300 the power station would be utilized in ing to alternative sources, such annual electricity consumption at the mill 300 250 the production process at Norske Skog as biofuel where possible. Oil by 7%. State-owned company enova is 250 200 1000 contributing NOK 50 million to the work. 200 Skogn. consumption in1000 the two Korean 150 900 The project will commence this year, 150 Norske Skog Tasman in New Zealand mills reduced by900 18% from 2005 100 800 100 800 and is due to be completed by the end 50 450 is situated in a geothermal area, and to 2006.700 An additional reduction 50 450 700 of 2009. 405 600 0 the company was instrumental in of 17% is expected in 2007. 0 405 600 100 360 500 The project will allow for increased 100 360 securing local authorities’ approval Energy management500 is in- 315 400 use of fi llers and recovered paper in the 315 400 80 10 % for the construction of a geothermal cluded in the new global project 270 300 80 10 % production process. This will enhance 270 300 225 200 power plant there. Construction has Norske Skog Production System 225 8 % 200 the mill’s competitiveness60 while meet- 180 100 8 % 60 180 started, and the power plant will be (NSPS). This will100 enable all of the 135 0 ing customer requirements for a larger 6 % 135 0 40 6 % fi nished at the end of 2008. mills to share the best technical 35 90 proportion of recycled40 fi bre in their 35 90 4 % and operational resources, and newsprint. 45 4 % 30 45 20 0 30 20 0 2 % BIOFUEL assist with the implementation of 25 2 % Where possible organic waste from the best practice. 0 25 0 % 0 20 0 % production processes is used as biofuel 20 15 -2 % 15 -2 % at the mills. In addition, several mills 10 10 purchase biofuel. Norske Skog is a 3500 100 3500 100 5 leading producer of bioenergy. 5 3000 3000 35 3000 The re-use of heat energy from 3000 80 0 35 80 0 30 2500 2500 30 2500 2500 the TMP process for paper production 60 2000 25 2000 60 2000 25 2000 is a strategy that is given high prior- 20 1500 40 20 1500 ity, in part to reduce greenhouse gas 1500 40 1500 1000 15 emissions. 15 1000 1000 20 1000 500 20 10 In Asia the mills are using less oil as 500 10 500 0 0 5 500 5 0 0 45 0 45 0 0 40 0 40 450 35 35 400 30 100 12 % 30 100 350 12 % 25 3500 10 % Norske Skog use of fossil fuels 25 300 3500 South-America Asia 80 20 10 % 3000 8 % 80 20 (kWh/tonne paper) 250 3000 8 % Total 1 360 GWh, 4.57 MWh/tonne Total 3 600 GWh, 2.30 MWh/tonne 15 6 % 15 2500 60 200 6 % 10 2500 1000 60 4 % 10 150 2000 4 % 900 5 2000 2 % 40 5 100 0 2 % 800 40 1500 0 % 0 50 1500 450 700 0 % -2 % 20 1000 405 600 0 -2 % 20 1000 100 360 -4 % 500 500 -4 % 0 500 315 -6 % 400 0 0 -6 % 80 270 10 % 300 0 225 200 8 % 60 180 100 Purchased electricity 57% Purchased electricity 44% 135 6 % 0 40 90 Fossil 0,3% Fossil 42% 2002 2003 2004 2005 2006 35 4 % 45 Bio 42% Bio 14% 30 Oil 20 0 2 % Gas 25 0 0 % Coal 20 15 -2 % 10 3500 100 5 3000 3000 35 80 0 30 2500 2500 9 NORSKE SKOG SUSTAINABILITY REPORT 60 2000 25 2000 20 1500 40 1500 1000 15 1000 20 500 10 500 0 0 5 45 0 0 40 35 30 100 12 % 25 3500 10 % 80 20 3000 8 % 15 6 % 2500 60 10 4 % 5 2000 2 % 40 0 1500 0 % -2 % 20 1000 -4 % 500 0 -6 % 0.