Some of our customers already generate their own sustainable energy locally, and thus decentrally, for example by means of solar panels or wind turbines. This energy is intended for their own use and is available to others in case of overproduction. Instead of just paying for energy, they now save money and, in some cases, even earn money from the energy that they generate.
Eneco aims to actively involve customers in the production of sustainable energy. We invest in increasing the percentage of sustainable production, either in collaboration with customers or with our own wind farms, solar installations or biomass energy plants. The target for 2013 was to expand the share of sustainable electricity production to 20% of the total supply portfolio (2012: 12.6%). We also wanted to keep CO2 emissions per kWh produced below 300 grams.
By developing a coherent set of services, we strive to offer more customers the possibility to generate their own energy. To this end, we focus on smart networks and intelligent grid management, which is sustainable from a social as well as a business-economics point of view. We apply our knowledge and expertise in the area of infrastructures to develop practical applications for residual flows such as steam and heat. This results in a reduction of the CO2 emissions from the energy that we produce.
In 2013, we put a lot of effort into the expansion of our sustainable electricity production; a combination of our own sustainable production and sustainable electricity purchased under Power Purchase Agreements (PPAs). The development of our own sustainable electricity production capacity is on schedule. This is described in further detail elsewhere in this chapter. The total sustainable electricity production increased from 12.6% in 2012 to 20.2% of total supply in 2013 (target 2013: 20%), which is an increase of more than 7%. This was achieved in part through the expansion of the sustainable production capacity, in particular as a result of the completion of a number of wind farms and the biomass energy plant Bio Golden Raand, and was partly the result of a decrease of the total supply portfolio.
Although electricity is produced in a sustainable manner as much as possible, we still need gas plants, especially on windless and cloudy days. Electricity generated from gas is the least polluting alternative to sustainable energy generation. In 2013, 47% of the total amount of electricity supplied by Eneco was generated by our own production facilities (2012: 51%). The main reason for the decrease compared with 2012 is the higher volume of purchased electricity compared with the use of our own gas plants. The growth of our sustainable production capacity in 2013 was almost equal to the decrease in the conventional capacity. At the end of 2013, the total production capacity amounted to 2.770 MW (2012: 2.740). The share of sustainable energy production capacity increased to 53% (2012: 41).
The measure for the sustainability of our own production is the amount of CO2 emissions per kWh of electricity produced. Fully sustainable energy does not generate any CO2 emissions. All our domestic and SME customers are supplied with sustainable energy, an increasingly larger part of which is generated by Eneco itself or in collaboration with partners.
We have agreed with WWF that, in 2013, the average CO2 emissions per kWh of electricity generated by Eneco would not exceed 300 grams. To reduce our CO2 emissions, we invest in wind, solar and biomass energy installations at the most appropriate locations in the Netherlands, Belgium, the United Kingdom and France. As a result of these efforts, the average CO2 emissions resulting from our energy production amounted to 113 grams/kWh in 2013 (2012: 226.9). This value does not include our purchasing contracts with production facilities of which we have less than 50% ownership. If we also take these into account, our CO2 emissions per kWh amounted to 216 grams in 2013. The decrease is related to the increase of our wind, solar and bioenergy capacity and the fact that less use was made of our gas plant.