Energy consumption

Energy consumption is an environmental aspect that is assessed and measured at all Ansaldo STS office and production sites when the environmental aspects of work sites and the construction of civil and technological works are analysed.

To meet its production and operating requirements, in 2014, the Group consumed a total of 133,438.8 GJ of energy (-3% compared to 2013). This consumption may be broken down as follows: electrical energy from the grid: 67.1%%, diesel oil to produce energy and for fuel vehicle traction: 16.7%, natural gas: 15.6%, petrol and other fuels: 0.6%.

The reduction in energy consumption was achieved thanks to a decrease in electrical energy (3.0%), natural gas (29.6%) and petrol and other fuels (2.9%).
Conversely, diesel oil consumption increased by 50.5% (mainly for vehicle traction).

Electrical energy (GJ) 27,504.6 28,488.2 29,261.2 64,783.9 63,814.4 60,291.8
Natural gas (GJ) 4,786.0 4,434.6 3,867.3 21,353.4 25,015.4 16,874.1
Petrol and other fuels (GJ) 386.8 368.9 379.5 2,797.9 465.4 430.6
Diesel oil (GJ) 43.5 42.6 42.9 4,380.6 14,796.7 22,291.4
TOTAL (GJ) 32,723.7 33,334.2 33,550.9 93,315.8 104,106.2 99,887.9

In absolute terms, 74.9% of total energy consumption is due to the 13 office sites and 25.1% to the three production sites.

At the latter sites, energy consumption was substantially in line with 2013: there was a reduction in the consumption of natural gas (-12.8%) and an increase in the use of petrol and other fuels (+2.9%) and electrical energy (+2.7%).

The office sites have seen a decrease in energy consumption (-4.0%), due to less use of electrical energy (-5.5%), natural gas (-32.6%) and petrol and other fuels (-7.5%). Only the consumption of diesel oil increased (+50.6%), mostly due to diesel oil used for vehicle traction and the greater volume of activities performed on the Australian contracts.

The trend in the Energy intensity performance indicator shows an increase at the production sites (+5.7%) in 2014. This is due to a slight rise in energy consumption (+0.3%), combined with a reduction in hours worked (-4.7%). The indicator is stable at the office sites as the reduction in energy consumption was offset by a proportionate decrease in the number of hours worked.

Energy efficiency

Ansaldo STS is currently implementing a project to reduce its energy use at its Italian sites in Genoa, Piossasco (Turin), Naples and Tito Scalo (Potenza) by 20% by 2015. The project was launched in 2010 with an analysis of energy consumption (electrical energy and gas for heating) in recent years and a future projection that showed an increase. As a result, the need arose to contain and reduce consumption and, consequently, reduce GHG emissions (CO2 in particular).

The types of steps to be taken as part of this project provide, for the Piossasco site, the replacement of much of the energy infrastructure which is obsolete (pipes, valves, lighting, etc.), while for the Genoa, Tito and Naples sites, the approach will focus more on rationalising consumption (less lighting in offices, including when personnel are not present, turning off PCs and displays when they are not being used, etc.) on the basis of actual needs, with the replacement of certain plant with energy-saving oriented systems only where they are obsolete.

Estimated costs range from €200 thousand to €300 thousand per year for five consecutive years, of which roughly 70% for investments to build plant that is equivalent to that which will need to be replaced, while the remaining 30% relates to the actual cost of the energy saving project. This expenditure is expected to generate economic and environmental benefits, the former including the possibility of obtaining financing for the revamping of plant under EU directives to reduce GHG. In addition, these investments will generate average energy savings prudently estimated to be 4% per year, making it possible to achieve the 20% target in five years.

The Building energy intensity indicator, calculated using consumption of electrical energy and natural gas for heating shows the effectiveness of the company’s energy efficiency policies described above designed to contain the estimated future growth in this consumption. Specifically, the indicator decreases for the office sites (-4.4%) due to the above-mentioned reduction in the consumption of electrical energy (-5.5%) and natural gas (-32.6%).

Both the Genoa and Solna office sites use district heating.

District heating (kWh) 64,096 881,791 822,118
Genoa 64,096 673,333 622,222
Solna N.D. 208,458 199,896

Renewable energies

Energy from renewable sources (all four Italian office sites + the Swedish office site since 2014) 8,247,724 8,884,072 8,331,906
Nuclear energy (French office site + Swedish site until 2013) 3,044,437 2,984,782 2,741,526
% renewable sources of total 32.2% 34.6% 33.5%
% nuclear sources of total 11.9% 11.6% 11.0%

Ansaldo STS has acquired electrical energy consumption certificates for 100% of the consumption by its Italian sites under the Renewable Energy Certificate System (RECS) again in 2014. These certificates represent 1 MWh, and attest to the use of energy from renewable sources, which include, as defined by EU directive no. 2009/28: wind, solar, aerothermal, geothermal, ocean, hydraulic, wasteto- energy, landfill gas, residual gas from purification processes and biogas.

By acquiring and subsequently cancelling the certificates (the latter entails the withdrawal of the certificate from the market), Ansaldo STS demonstrates its commitment to environmental sustainability through its willingness to pay the positive difference with the price of electricity from conventional sources.

The Swedish Solna and the French Les Ulis sites acquire electrical energy on the grid from nuclear sources. Since 2014, the Solna site has moved to a fully renewable energy source mix.