| The most important energy sources are the energetic processing of our waste products, natural gas and the utilization of combined heat and power. Together they account for about three quarters of total energy consumption. Water usage is discriminated into two main classes, industrial process water and non-contact cooling water. Essentially all cooling water cycles are closed loop systems, whereby the exchanged heat is dissipated by airflow and evaporation (cooling tower) or by river water (Visp, Switzerland). |
Energy Consumption | |
| The total energy requirement in the year under review was 8406 terajoules, 7.6% up on the previous year. The main energy sources used by Lonza in 2010 were: natural gas (34%), electricity (32%) and utilization of waste (29%). Liquid fossil fuels accounted for 4% of the overall energy consumption. Energy from renewable sources accounted for 3% of the electrical energy consumed, a significant decrease from the level of 15% recorded the previous year. One of the main reasons is the electric power market in Switzerland, where Lonza draws a significant proportion of electricity of not exactly known origin, by default reported as 'non-renewable'. Lonza focuses on balancing economic and ecological aspects. A number of energy efficiency measures are in the process of being realized at different sites. As a matter of course these efforts will continue. | |
Energy Consumption in Terajoules (TJ)


| Total energy demand 2010 was 8406 TJ (7.6% up on the previous year). The reduction in 2006 was essentially the result of the divestiture of the polymer and intermediates division. |
Distribution of energy sources 2010


Water Consumption | |
| Reporting on water consumption is separated into "industrial water" and "cooling water". Industrial water: Water which is polluted by industrial or sanitary processes and installations and which has to be treated in own or external waste water treatment plants. Cooling water: Water used for energy transfer (cooling, heating), which is kept in a network separated from industrial water and which can be released back to receiving waters (rivers, lakes) without further treatment. | |
Industrial Water | |
| Industrial water consumption, which is largely dependent on production volume, capacity use and product mix, amounted to 5.2 million cubic meters in 2010, up 7.7% on 2009 and at level with the average of the previous three year period 2007-2009. The significant fall of >50 % of industrial water consumption in 2006 is accountable to changes in the asset portfolio (divestiture of the Italian Polynt - polymer and intermediates - and German LOFO - foil production). In the reporting year the peptide and bioscience assets acquired in 2006 and 2007 represented 3% of total industrial water consumption (2009: ~4%) underlining the dominance of chemical and pharma API production at other business sectors in water usage. | |
Industrial Water consumption (in 1000 cubic meters)


| Industrial water consumption of all Lonza sites active in the respective year. |
Cooling Water | |
| With the exception of the plant in Visp (Switzerland) all Lonza production sites are using closed-loop cooling water systems with heat dissipation by means of airflow cooling towers. In Visp, water from the river Rhone is used in in large volumes to dissipate non-recoverable heat energy by heat exchangers. The river water cooling system is completely separated from any industrial water system and is equipped with special protection and control measures to secure its water quality. Total cooling water used by Lonza in 2010 amounts to 126 million cubic meters. Visp, with 125 million cubic meters once-through river water, has a >99% share in this amount. All other Lonza sites together have a cooling water consumption of 0.76 million cubic meters (mainly by evaporation). | |
Cooling Water consumption of Group without Visp plant (in 1000 cubic meters)


| The effect of the restructuring of the asset portfolio by the divestiture of the polymer and additives buisiness in 2006 is clearly visible. |
In the few minutes it will take you to read this page, you will be covering: 75% of our planet's surface, the substance in your drinking glass, and the element from which you are mostly made. I hope it doesn't take you too long to figure out that this substance is water. Our planet's water supply has transformed a barren planet into the green and blue object astronauts have spent hours staring at in awe. Water has provided for our needs in many ways, and may easily do it again. This time water is providing the electricity that our modern-day society greatly depends on..gif)
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is by the changing of tides. Tidal power plants are producing electricity for their nearby consumers in France, Canada, Japan and many other countries. Tidal power plants work on the power of changing tides. The first step in the construction of a tidal power plant is in finding a bay with a large difference between it's low and high tides. Engineers then design a dam to put across the outer end of the bay. When high tide comes to the area, huge quantities of water come rushing into the bay. The gates in the dam will shut when the water level has reached it's maximum height. At low tide, the water in the bay is trapped higher than the ocean water. Holes in the bottom of the dam let the water rush past turbines and then back into the ocean. When the next high tide comes around, the whole process begins over again.