Energy
The Group’s relative energy consumption per ton of product fell by around 5% compared with the previous year. The unit at Toledo has reduced relative energy consumption through increased concentration in process solutions. At Stenungsund emissions of nitrogen oxide have been reduced through the installation of a new steam boiler. At Freeport, the new steam boiler enabled consumption of natural gas to be reduced, while at Pont-de-Claix enhancements of the steam system and installation of extra heat exchanger units helped to cut relative energy consumption by around 5%.

During 2010 consumption of energy by the Perstorp Group amounted to 3,465 (3,240) GWh of which 1,968 (1,926) GWh came from external producers. Of the electricity and steam produced internally, 14 (16)% is from renewable fuel. Of externally produced energy, 7 (6)% is from renewable fuel.

Raw materials & purified water
During 2010, the Perstorp Group used 71 (74) million cubic meters of purified water.
Of this amount, 42 (49) Mm3 was surface water, 28 (23) Mm3 was groundwater, 0.9 (0.9) Mm3 was from the municipal supply and 0.5 (0.5) Mm3 was supplied from other external sources. Of the total volume of  71 Mm3 of purified water, 64 Mm3 is cooling water, of which 46 (47) Mm3 is used at the Pont-de-Claix production site.

Perstorp uses a wide variety of raw materials in its processes – for example, methanol, propylene, natural gas, sodium chloride, nitric acid and toluene. These substances are converted by Perstorp, for example to make formalin, butyraldehyde, polyols and Toluene diisocyanate.

The Group aims to deliver as much as possible in bulk to reduce the amount of packaging material.