An increase in the quantity of dangerous waste in 2016 resulted from the decommissioning of transformers at three electrical substations:
- 220/110 kV Biskupice (155 tonne transformer),
- 220/110kV Klecina (156 tonne AT1 autotransformer and 154 tonne AT2 autotransformer),
- 400/110 kV Ostrołęka (158 tonne ATR1 autotransformer).
The waste data summarised in the table does not contain information on its further disposal owing to a lack of specified handling procedures for waste taken over by the recipients, i.e. waste disposal undertakings.
We strive to minimise water consumption
We do not carry on any production activity and therefore water consumption at our headquarters and at the substations is small. However, we monitor its use as part of the Environmental Management System. Water is supplied to our substation facilities from our own deep wells and from commune or municipal water mains.
Wells are a source of supply to our 13 extra-high voltage substations. At the substation facilities, water is used for personal purposes of the substation personnel and for firefighting purposes. Each substation is equipped with a fire water reservoir (or reservoirs) with a capacity of 50 m3.
At the substations with transformer units equipped with fire extinguishing systems, a small quantity of reservoir water is consumed for sprinkler system tests which are performed once a year. The measurement of consumer water quantity is based on the main water meter readings.
On the premises of our headquarters in Konstancin-Jeziorna, we use our own water intake – we have two deep wells. Water supplied to the offices of field units comes from municipal mains.
The data presented in the table below have been collated from water meter readings at the sites with their own water intakes, and from water supply invoices for the facilities using water mains.