CPFL Group

Daylight saving time reduces energy consumption by 3.4%

Friday, February 15, 2013 - 17:36
Campinas, with a population of 1,1 million, is one of the cities in São Paulo served by CPFL Energia Campinas, with a population of 1,1 million, is one of the cities in São Paulo served by CPFL Energia

119 days after the start of Daylight Saving Time, CPFL Group recorded savings of 3.4% in the overall demand for electricity during peak hours in the concession areas of its eight distributors. The companies also saw a consumption reduction of 158,670 MWh (megawatt/hour), which would be enough to power for 17 days a city such as Campinas, SP, with a population of 1.1 million. The 42nd season of Daylight Saving Time ends at midnight of next Saturday, February 16, when clocks should be delayed by one hour in the regions of South, Southeast, Midwest, and Federal District.

Camargo Corrêa Group is a major shareholder among the controlling partners of CPFL Energia.

Daylight saving time

In effect since October 21, the daylight saving time aims to reduce the risk of problems with electricity supply at a time when the demand is growing due to high temperatures and industrial demands for Christmas. With natural light for a few hours more, the consumption is diluted from 6PM to 10PM, avoiding overloading the system, as advocates explain.

In the last decade, according to the Department of Mines and Energy, daylight saving time allowed an average reduction of 4.6% in energy demand during peak hours, from 6PM to 9PM. The government estimates that this year has saved about R$ 280 million, reducing the energy demand by 5% in these hours. In the previous edition, according to the Electric System National Operator (ONS), the country saved R$ 160 million.