Energisystemanalys av ABB AB LV Motors
Independent thesis Advanced level (degree of Magister), 20 points / 30 hpStudent thesis
With a larger awareness of the climate changes and increasing electricity prices, energy efficiency measures in the industry have become more common. By rationalize the activity and by the same time decrease the emission of greenhouse gases the company can both save money and reduce negative environmental impact. For the Swedish industries the electricity price have traditional been relative low, which has resulted in a considerable larger usage than other European countries. By a deregulation of the European electricity market the electricity price will level off between the countries, which will cause a higher electricity price in Sweden than we are use to. To prevent that the Swedish industry don’t lose competitiveness against the other European countries, it will require energy efficiency activities in all different forms.
ABB Sweden has decided to decrease their total energy usage with five percent in two years. This is one step to rationalize their activity and set a good example for other companies and customers. LV Motors is a company within the division Automation Products that fabricates Low Voltage Motors within the shaft height 112 – 280 (millimeter). This Master’s thesis is accomplished at LV Motors and is a part of the goal to decrease the total energy usage at ABB Sweden with five percent.
In order to increase energy efficiency in a company it is very important that you first find the total use of energy. Thereafter when the total energy is spotted and divided in different unit processes is it likely to look at where the energy use is benefiting to examine.
Since electricity is the energy form that is most common and has the highest price it’s the electric power consumption that have been studied the most. From the table above you can see that the electricity is divided almost the same between Support processes and Production processes. The Lighting is the largest unit process followed by the Heating of all the ovens. Thereafter the Ventilation and the Compressed air are the largest unit processes. With knowledge in energy efficiency measures in the industry and briefing of former studies the concentration in this work has been improvements of the Support processes.
In excess of all suggested energy improvements LV Motors has a large potential to decrease their electric bills in order to cooperate with the real-estate concern and make sure that the electric bills get correctly charged. LV Motors don’t possess their own building, which brings that processes like lightning, ventilation and space heating should be included in the rent. These designs for how the electricity charges are however not totally correct.
Total there is a potential to save up to 1,6 million crowns per year in decreasing operating costs. To accomplish this it will demand relative large investments. If you’re not willing to do these investments there are still a cost-saving at 700 000 crowns per year that don’t demand any large investments, only a changed behavior at the employees. Since the electricity price in Sweden probably will further increase the next years, this results in even larger cost-savings than the calculated savings above.
Besides saving money there is also a potential to save between 72 to 144 tonnes less emission of carbon dioxide per year. Making the electricity use more effective for the company will do this possible. For heat recovery will further reduction of carbon dioxides be added, but these numbers are not included here.
The biggest barrier to energy effective at LV Motors is split incentives, as the company doesn’t own the buildings. The real-estate group and LV Motors must agree on who stands for the investment and who get in on the profit. If these two arguments don’t connect it is difficult to motivate the purchase of more energy effective equipment.
Place, publisher, year, edition, pages
Institutionen för ekonomisk och industriell utveckling , 2008. , 113 p.
Energikartläggning, Energieffektivisering, Energianvändning, Energisystemanalys
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-10699ISRN: LIU-IEI-TEK-A--08/00271--SEOAI: oai:DiVA.org:liu-10699DiVA: diva2:17408
2008-01-14, Energisystem konferensrum, A, Linköping, 10:00