Renewable energy production recorded the lowest level of the year in September and delivered 34% of national consumption, plus an export balance, up to 52% since the beginning of the year, according to REN data.
According to data from REN – Redes Energéticas Nacionais on Monday, "the production of renewable energy was at the lowest level of the year, accounting for 34% of national consumption plus export balance."
In renewable energy sources, the balance of foreign trade remained "slightly exporter, which corresponds to 2.6% of national consumption this month," he adds.
In the period from January to September, "renewable production yielded 52% of consumption", according to REN, divided by hydro power by 24%, wind by 21%, biomass by 5% and photovoltaic energy by 1.6.
Non-sustainable production yielded the remaining 48% of consumption, divided by natural gas by 27% and by coal by 20% and the balance of foreign trade is an exporter, corresponding to about 7% of national consumption.
In total, electricity consumption increased by 4.4% in September compared to the same month in 2017, influenced by temperatures above normal values at this time of year.
"Taking into account the correction of the effects of temperature and number of working days, the evolution is 1.4%", with an annual cumulative variation of 3.0%, or 1.7% with a correction of the effects of temperature and number working days, according to REN.
In September, the hydrological conditions remained favorable, despite the reduced rainfall, with a hydraulic index of 1.48 (historical average equals 1), mainly due to the "influx into the Douro basin, due to the Spanish upstream reservoirs".
The production of wind energy, in a month that is statistically the lowest of the year, recorded low values, with the respective productivity index standing at 0.61 (historical average 1), the lowest since records (2001).
The annual hydroelectric production index is 1.20 at the end of the month (historical average is equal to 1), while the wind productivity index is 0.98 (historical average equals 1), slightly below the average value.
In the natural gas market, in September, although there was still a small decrease in the electrical energy segment of minus 2.5%, the growth of 2.4% of the conventional segment led to a worldwide increase of 0, 3 %.
At the end of September, natural gas consumption declined by 7.3% compared to the same period last year, due to a 25% cut in the electricity market and a 4.7% growth in the conventional segment.