One year has been completed, which in energy affairs was marked by the consolidation of non conventional renewable energies (ERNC), announced plans for decarbonization and operation of Singh and the SIC as the only system.
Regarding the generation, 2018 has set aside because coal remains the main source contributing to the system, but renewable energy sources have an increasingly dominant role. In the year, the production of solar and wind energy is 9.165 GWh -44% more than in 2017, which is translated into 11.9% of the total generated in the matrix. Meanwhile, hydroelectric power stations continue to have a significant share, and this year they account for 30.7% of the generation, which is equivalent to 23,501 GWh, which is 7.8% more than 2017.
However, coal generates 28,926 GWh this year and still leads the system. Its generation fell by only 1.6% compared to 2017, and its share was 37.8%.
According to Carlos Finat, executive director of the Chilean Renewable Energy Association (Acera), the generation of green energies this year could be greater if the Cardones-Polpaico line, which is delayed, would function.
"Reducing the production of solar and wind power plants is increasing. In the absence of these constraints, we estimate that NCRE's participation in the total generation could be equivalent to an additional percentage point," said the executive director of the renewable company's Guild.
The marginal price goes up
Regarding the marginal costs – to the extent that energy is exchanged between the actors of the system – a strong increase in the central zone is observed. The values provided by the National Electricity Coordinator (CEN) by December 25th show that Quilota's 220 kV Quarter increased by 10.61% compared to 2017. The annual average was $ 63.51 MWh, however last year that figure reached US57.42 per MWh.
This, according to Executive Director (I) of the National Electronic Coordinator, Ernesto Huber, "is the result of several variables, mainly due to the hydrological conditions, the growth in demand for electricity, among other factors." However, he noted that one of the variables with a significant incidence is related to the price of fuels.
"During 2018, the values of international indices, which are often used as indices for the prices of diesel fuels, natural gas and coal, which are the main entrance of thermoelectric power plants, have increased," he said.
Meanwhile, in the northern zone – Crucero bar – marginal costs declined by 4.39% compared to the previous year, recording an annual average of $ 52.99 for MWh versus $ 55.42 per MWh in 2017.
The trend of previous years has shown that in the central zone and north, energy costs have declined, so growth in Quillota was surprising.
CEN estimates that next year, energy costs will be fully reduced. This, in two hypothetical scenarios: dry and humid hydrology. For Quillota it was simulated that with dry hydrology, energy would cost 16% less than 2018; but with damp hydrology the marginal cost reduction will be 25%.
In the northern zone, however, with a hypothetical scenario of dry hydrology, the cost would be reduced by 4.1% and wet hydrology, 5.5%. All this, given the entry into Operation Cardones-Polpaiko, scheduled for March 2019.
The coordinator predicts that 98 power plants will enter into force in 2019, which will mean an additional 2,000 MW of electricity.
Photovoltaic units are leading in quantity, as 55 new plants will begin to supply electricity, adding 555.5 MW to the matrix. Then comes the wind, with 14 plants that will spray 813.8 MW in the system. The third place is diesel, which with 14 drives will contribute to 512 MW for the system.
The beginning of this quantity of diesel power plants is due to the fact that their operation is still profitable. This is because they are kept in reserve and receive revenue from government.
They will also enter 13 hydro power plants, with a share of 71 MW. Finally, it will open a biogas factory and a LPG plant.